Hinge capable of adjusting closing speed

Abstract

The utility model relates to a hinge capable of adjusting closing speed, which comprises a fixed seat component and a movable seat component which are hinged to open and close, and the movable seat component comprises an inner rocker arm, an outer rocker arm and a hinge cup. The inner rocker arm is used for limiting and installing the damping mechanism, one end of the damping mechanism acts on the inner rocker arm, and the fixing seat assembly and the outer rocker arm are hinged to the inner rocker arm; an adjusting mechanism is arranged on the outer rocker arm, and the outer rocker arm is hinged to the hinge cup; the adjusting mechanism comprises an adjusting piece and a movable block acting on the damping mechanism in the hinge closing process, and the outer rocker arm and the movable block are connected with the adjusting piece in a matched mode. The adjusting piece moves and drives the movable block to move on the outer rocker arm so as to adjust the installation position of the movable block on the outer rocker arm, then the stroke of compressing the damping mechanism in the hinge closing process is adjusted, and after the position of the movable block acting on the damping mechanism in the hinge closing process is changed, the closing speed of the hinge is finally adjusted. The defect that the closing speed of an existing large-angle opening and closing hinge cannot be adjusted is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture hardware, in particular to a hinge with adjustable closing speed. Background Art

[0002] Chinese Patent No. ZL202311150822.3 discloses a hinge integrating buffering and silencing functions, including 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, and a positioning sliding fit part 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 part; 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 first 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 greater 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 sound elimination effect. However, the above hinge cannot adjust the stroke of the compression damping mechanism and cannot adjust the closing speed of the hinge.

[0003] For adjusting the closing speed of the existing hinge, it is all realized by adjusting the transmission arm acting on the damper. For example, Chinese Patent No. ZL201310224515.5 discloses a damper hinge with adjustable speed. When the closing force of the hinge is basically stable, the transmission force arm is changed through an adjustment mechanism, and finally the force acting on the damper can be adjusted to achieve the adjustable-speed closing of the door body. The damping transmission structure of this hinge is relatively complex, and its transmission mechanism is composed of a connecting rod and a swing block, resulting in a large number of internal parts of the hinge. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a hinge with adjustable closing speed. By providing an adjusting part and a movable block on the arm body of the hinge, the position of the movable block on the arm body is adjusted through the adjusting part, so that the position of the movable block acting on the damping mechanism during the closing process of the hinge changes, thereby adjusting the stroke of the compression damping mechanism during the closing process of the hinge, canceling the existing transmission mechanism composed of a connecting rod and a swing block, effectively simplifying the internal structure of the hinge, saving production costs, and making up for the defect that the existing large-angle opening and closing hinge does not have adjustable closing speed.

[0005] The purpose of the utility model is realized as follows:

[0006] A hinge with adjustable closing speed includes a fixed seat assembly and a movable seat assembly that are hinged to open and close. The movable seat assembly includes an inner swing arm, an outer swing arm, and a hinge cup;

[0007] The inner rocker arm is used for limiting and installing a damping mechanism. One end of the damping mechanism acts on the inner rocker arm, and the fixed seat assembly and the outer rocker arm are respectively hinged to the inner rocker arm.

[0008] An adjusting mechanism is provided on the outer rocker arm, and the outer rocker arm is hinged to a hinge cup.

[0009] The adjusting mechanism includes an adjusting member and a movable block that acts on the damping mechanism during the closing process of the hinge. The outer rocker arm and the movable block are respectively connected to the adjusting member in a cooperative manner.

[0010] The adjusting member moves and drives the movable block to move on the outer rocker arm to adjust the installation position of the movable block on the outer rocker arm, thereby adjusting the stroke of compressing the damping mechanism during the closing process of the hinge, and finally realizing the adjustment of the closing speed of the hinge.

[0011] A rolling member for acting on the damping mechanism during the closing process of the hinge is provided on the movable block, and the rolling member is rotatably connected to the movable block; during the closing process of the hinge, the rolling member is in rolling contact with the damping mechanism.

[0012] The rolling member and the movable block move along with the adjusting member to adjust the distance L between the hinge point of the inner rocker arm and the outer rocker arm and the rotation fulcrum of the rolling member, thereby adjusting the stroke of compressing the damping mechanism during the closing process of the hinge. The rolling member and the movable block move along with the adjusting member, causing the position of the movable block acting on the damping mechanism during the closing process of the hinge to change, so the distance L changes. The distance L is inversely proportional to the stroke of compressing the damping mechanism. When the distance L becomes larger, the stroke of compressing the damping mechanism becomes smaller; when the distance L becomes smaller, the stroke of compressing the damping mechanism becomes larger.

[0013] A limiting and guiding portion is provided between the inner rocker arm and the damping mechanism. The damping mechanism is limited to move on the inner rocker arm through the limiting and guiding portion during the opening and closing process of the hinge. The limiting and guiding portion has a guiding function and an installation limiting function to prevent the damping mechanism from moving around inside the hinge, ensuring smooth opening and closing of the hinge.

[0014] The inner rocker arm includes a first positioning side portion and a second positioning side portion. A positioning block is provided between the first positioning side portion and the second positioning side portion. The damping mechanism is limited and installed between the first positioning side portion and the second positioning side portion, and the telescopic end of the damping mechanism acts on the positioning block. The first positioning side portion, the second positioning side portion and the positioning block form a limiting groove portion for limiting and installing the damping mechanism.

[0015] A limiting and cooperating portion is provided between the outer rocker arm and the movable block. The movable block is limited and installed on the outer rocker arm through the limiting and cooperating portion, and when the adjusting member moves, the movable block is limited to move on the outer rocker arm through the limiting and cooperating portion.

[0016] An adjusting cooperation part is provided between the outer rocker arm and the movable block and the adjusting part respectively. The outer rocker arm and the movable block are respectively rotationally and cooperatively connected to the adjusting part through the adjusting cooperation part, and the adjusting part is positioned and rotated between the outer rocker arm and the movable block through the adjusting cooperation part.

[0017] The adjusting cooperation part is a stepless or stepped adjusting cooperation part, and the adjusting part performs stepless or stepped adjustment through the stepless or stepped adjusting cooperation part.

[0018] The fixed seat assembly includes a first connecting arm, a second connecting arm and a fixed seat; the inner rocker arm, the hinge cup and the second connecting arm are respectively hinged to the first connecting arm; a limiting action part for limiting and installing an elastic mechanism is provided on the first connecting arm; during the opening and closing process of the hinge, the elastic mechanism elastically acts on the limiting action part to realize the elastic opening and closing of the hinge.

[0019] The fixed seat includes a bottom plate and a connecting part connected to the bottom plate, and the second connecting arm is hinged to the connecting part;

[0020] A limiting part is provided between the inner rocker arm and the outer rocker arm. When the hinge is opened to a corresponding position angle, the other end of the damping mechanism acts on the limiting part to prevent the damping mechanism from slipping out of the inner rocker arm during the opening process of the hinge.

[0021] The beneficial effects of the present utility model are as follows:

[0022] When multiple door bodies are installed on the cabinet body and the closing speed of one of the door bodies is different from that of the other door bodies, the closing speed of the hinge can be adjusted through the adjusting mechanism. The technical solution is: by providing an adjusting part and a movable block on the arm body of the hinge, the position of the movable block on the arm body is adjusted through the adjusting part, so that the position of the movable block acting on the damping mechanism during the closing process of the hinge changes, and further the stroke of compressing the damping mechanism during the closing process of the hinge is adjusted. The existing transmission mechanism composed of a connecting rod and a swing block is cancelled, effectively simplifying the internal structure of the hinge, saving production costs, and making up for the defect that the existing large-angle opening and closing hinge has no adjustment of the closing speed.

[0023] When the stroke of compressing the damping mechanism becomes shorter, with the same closing force acting on the door body, the closing time of the door body becomes shorter (equivalent to the closing speed of the door body becoming faster). Description of the Drawings

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the hinge in the open state according to an embodiment of the present utility model.

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the hinge in the closed state according to an embodiment of the present utility model.

[0026] Figure 3 It is an exploded assembly structural schematic diagram of the hinge according to an embodiment of the present utility model.

[0027] Figure 4 Schematic diagram of the internal cross-sectional structure of a hinge according to an embodiment of the present invention.

[0028] Figure 5 Schematic diagram of the structure where the installation position of the movable block changes on the outer rocker arm according to an embodiment of the present invention.

[0029] Figure 6 Schematic diagram of the disassembly structure of the assembly of the outer rocker arm and the adjusting mechanism according to an embodiment of the present invention.

[0030] Figure 7 Schematic diagram of the cross-sectional structure of the cooperation between the inner rocker arm and the damping mechanism according to an embodiment of the present invention. Detailed implementation manners

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] Refer to Figures 1-7 , a hinge with adjustable closing speed, including a fixed seat assembly 1 and a movable seat assembly 2 that are hinged to open and close, and the movable seat assembly 2 includes an inner rocker arm 4, an outer rocker arm 5, and a hinge cup 6;

[0033] The inner rocker arm 4 is used for limit installation of the damping mechanism 7, one end of the damping mechanism 7 acts on the inner rocker arm 4, and the fixed seat assembly 1 and the outer rocker arm 5 are respectively hinged to the inner rocker arm 4;

[0034] An adjusting mechanism 8 is provided on the outer rocker arm 5, and the outer rocker arm 5 is hinged to the hinge cup 6;

[0035] The adjusting mechanism 8 includes an adjusting member 9 and a movable block 10 that acts on the damping mechanism 7 during the closing process of the hinge. The outer rocker arm 5 and the movable block 10 are respectively connected to the adjusting member 9 in a matching manner;

[0036] The adjusting member 9 moves and drives the movable block 10 to move on the outer rocker arm 5 to adjust the installation position of the movable block 10 on the outer rocker arm 5, thereby adjusting the stroke of compressing the damping mechanism 7 during the closing process of the hinge, and finally realizing the adjustment of the closing speed of the hinge.

[0037] A rolling member 11 is provided on the movable block 10 for acting on the damping mechanism 7 during the closing process of the hinge. The rolling member 11 is rotatably connected to the movable block 10; during the closing process of the hinge, the rolling member 11 is in rolling contact with the damping mechanism 7.

[0038] The rolling member 11 and the movable block 10 move with the adjusting member 9 to adjust the distance L between the hinge point of the inner rocker arm 4 and the outer rocker arm 5 and the rotation fulcrum of the rolling member 11, thereby adjusting the stroke of compressing the damping mechanism 7 during the closing process of the hinge.

[0039] A limiting and guiding part 12 is provided between the inner rocker arm 4 and the damping mechanism 7, and the damping mechanism 7 is limited to move on the inner rocker arm 4 through the limiting and guiding part 12 during the hinge opening and closing process.

[0040] In this embodiment, the damping mechanism 7 includes a housing 26 and a damper 27 provided in the housing 26. The limiting and guiding part 12 includes a guiding groove provided on the housing 26 and a guiding convex block provided on the inner side of the inner rocker arm 4. When the damping mechanism 7 is limited and installed on the inner rocker arm 4, the guiding convex block is limited on the guiding groove.

[0041] The inner rocker arm 4 includes a first positioning side part 13 and a second positioning side part 14. A positioning block 16 is provided between the first positioning side part 13 and the second positioning side part 14. The damping mechanism 7 is limited and installed between the first positioning side part 13 and the second positioning side part 14, and the telescopic end of the damping mechanism 7 acts on the positioning block 16. The first positioning side part 13, the second positioning side part 14 and the positioning block 16 form a limiting groove part 24 for limiting and installing the damping mechanism 7.

[0042] A limiting and cooperating part 15 is provided between the outer rocker arm 5 and the movable block 10. The movable block 10 is limited and installed on the outer rocker arm 5 through the limiting and cooperating part 15, and when the adjusting part 9 moves, the movable block 10 is limited to move on the outer rocker arm 5 through the limiting and cooperating part 15.

[0043] In this embodiment, the limiting and cooperating part 15 includes positioning arm bodies provided on the left and right sides of the outer rocker arm 5 and limiting arm bodies provided on the left and right sides of the movable block 10. When the movable block 10 and the outer rocker arm 5 are installed, the limiting arm bodies on the left and right sides of the movable block 10 are limited between the positioning arm bodies on the left and right sides of the outer rocker arm 5.

[0044] In this embodiment, the limiting and cooperating part 15 further includes a limiting notch provided on the top of the outer rocker arm 5 and a limiting protrusion provided on the movable block 10. When the movable block 10 and the outer rocker arm 5 are installed, the limiting protrusion is limited on the limiting notch. When the movable block 10 moves following the adjusting part 9, the limiting protrusion is limited to move back and forth and left and right on the limiting notch.

[0045] Adjusting and cooperating parts 28 are respectively provided between the outer rocker arm 5, the movable block 10 and the adjusting part 9. The outer rocker arm 5 and the movable block 10 are respectively rotationally and cooperatively connected to the adjusting part 9 through the adjusting and cooperating parts 28, and the adjusting part 9 is positioned and rotated between the outer rocker arm 5 and the movable block 10 through the adjusting and cooperating parts 28.

[0046] The adjusting and cooperating part 28 is a stepless or stepped adjusting and cooperating part, and the adjusting part 9 performs stepless or stepped adjustment through the stepless or stepped adjusting and cooperating part.

[0047] In this embodiment, the adjusting member 9 can be an eccentric adjusting screw or an adjusting disc. Taking the eccentric adjusting screw as an example, the bottom of the screw head of the adjusting member 9 is provided with an annular limiting boss that is limited in the slot hole of the outer rocker arm 5, and the eccentric shaft of the adjusting member 9 is inserted into the shaft hole of the movable block 10. The eccentric adjusting screw rotates without stepless positioning between the outer rocker arm 5 and the movable block 10.

[0048] In this embodiment, when the adjusting member 9 is an adjusting disc, the adjusting disc is provided with a spiral groove, and the movable block 10 is provided with three arc-shaped convex blocks arranged at intervals. When the adjusting disc rotates, the arc-shaped convex blocks are at different positions on the spiral groove, forming a stepped positioning rotation of the adjusting disc between the outer rocker arm 5 and the movable block 10. The outside of the adjusting disc can be limited in the slot hole of the outer rocker arm 5.

[0049] The fixed seat assembly 1 includes a first connecting arm 17, a second connecting arm 18 and a fixed seat 19; the inner rocker arm 4, the hinge cup 6 and the second connecting arm 18 are respectively hinged to the first connecting arm 17; the first connecting arm 17 is provided with a limiting portion 21 for limiting and installing the elastic mechanism 20; during the opening and closing process of the hinge, the elastic mechanism 20 elastically acts on the limiting portion 21 to realize the elastic opening and closing of the hinge.

[0050] In this embodiment, the elastic mechanism 20 includes a compression spring and a housing covering the compression spring. The housing can be fixed in the inner cavity of the first connecting arm 17 by screws. One end of the compression spring elastically acts on the inner side of the housing. A guide rod can be provided inside the compression spring. The other end of the compression spring can act on the guide rod. One end of the guide rod can act on the first connecting arm 17. A rotating shaft or the like can be provided in the inner cavity of the first connecting arm 17 corresponding to one end of the guide rod. An arc-shaped position is provided at one end of the guide rod corresponding to the rotating shaft or the like, and the arc-shaped position abuts against the rotating shaft. These are all well-known common knowledge to those skilled in the art. In addition to this structure, other structures can also be provided to form the above-mentioned elastic mechanism 20.

[0051] The fixed seat 19 includes a bottom plate 22 and a connecting member 23 connected to the bottom plate 22. The second connecting arm 18 is hinged to the connecting member 23;

[0052] A limiting portion 25 is provided between the inner rocker arm 4 and the outer rocker arm 5. When the hinge is opened to a corresponding position angle, the other end of the damping mechanism 7 acts on the limiting portion 25.

[0053] In this embodiment, the damping mechanism 7 includes a housing 26 and a damper 27 provided in the housing 26. The housing 26 is provided with a receiving groove, and the damper 27 is installed in the receiving groove.

[0054] The limiting portion 25 is a rotating shaft provided between the inner rocker arm 4 and the outer rocker arm 5. The housing 26 is provided with a notch corresponding to the rotating shaft. When the hinge is opened to a corresponding position angle, the notch acts on the rotating shaft.

[0055] During the hinge closing process, the notch will disengage from the rotating shaft.

[0056] In this embodiment, the hinge connection can be achieved by means of a connecting shaft and riveting.

[0057] The above is the preferred solution of the present invention, which shows and describes the basic principles, 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 of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hinge with adjustable closing speed, comprising a fixed seat assembly (1) and a movable seat assembly (2) that are hinged to open and close, characterized in that: The movable seat assembly (2) includes an inner rocker arm (4), an outer rocker arm (5) and a hinge cup (6); The inner rocker arm (4) is used for limiting and installing a damping mechanism (7). One end of the damping mechanism (7) acts on the inner rocker arm (4), and the fixed seat assembly (1) and the outer rocker arm (5) are respectively hinged to the inner rocker arm (4); An adjusting mechanism (8) is provided on the outer rocker arm (5), and the outer rocker arm (5) is hinged to the hinge cup (6); The adjusting mechanism (8) includes an adjusting member (9) and a movable block (10) that acts on the damping mechanism (7) during the closing process of the hinge. The outer rocker arm (5) and the movable block (10) are respectively connected to the adjusting member (9) in a mating manner; The adjusting member (9) moves and drives the movable block (10) to move on the outer rocker arm (5) to adjust the installation position of the movable block (10) on the outer rocker arm (5), thereby adjusting the stroke of compressing the damping mechanism (7) during the closing process of the hinge, and finally realizing the adjustment of the closing speed of the hinge.

2. The hinge with adjustable closing speed according to claim 1, characterized in that: A rolling member (11) for acting on the damping mechanism (7) during the closing process of the hinge is provided on the movable block (10), and the rolling member (11) is rotatably connected to the movable block (10); During the closing process of the hinge, the rolling member (11) is in rolling contact with the damping mechanism (7).

3. The hinge with adjustable closing speed according to claim 2, characterized in that: The rolling member (11) and the movable block (10) follow the movement of the adjusting member (9) to adjust the distance L between the hinge point of the inner rocker arm (4) and the outer rocker arm (5) and the rotation fulcrum of the rolling member (11), thereby adjusting the stroke of compressing the damping mechanism (7) during the closing process of the hinge.

4. The hinge with adjustable closing speed according to claim 1, wherein: A limiting and guiding portion (12) is provided between the inner rocker arm (4) and the damping mechanism (7), and the damping mechanism (7) is limited to move on the inner rocker arm (4) through the limiting and guiding portion (12) during the opening and closing process of the hinge.

5. The hinge with adjustable closing speed according to claim 1, characterized in that: The inner rocker arm (4) includes a first positioning side portion (13) and a second positioning side portion (14). A positioning block (16) is provided between the first positioning side portion (13) and the second positioning side portion (14). The damping mechanism (7) is limited and installed between the first positioning side portion (13) and the second positioning side portion (14), and the telescopic end of the damping mechanism (7) acts on the positioning block (16). The first positioning side portion (13), the second positioning side portion (14) and the positioning block (16) form a limiting groove portion (24) for limiting and installing the damping mechanism (7).

6. The hinge with adjustable closing speed according to claim 1, characterized in that: A limiting and mating portion (15) is provided between the outer rocker arm (5) and the movable block (10). The movable block (10) is limited and installed on the outer rocker arm (5) through the limiting and mating portion (15), and when the adjusting member (9) moves, the movable block (10) is limited to move on the outer rocker arm (5) through the limiting and mating portion (15).

7. The hinge with adjustable closing speed according to claim 1, wherein: Adjusting mating portions (28) are provided between the outer rocker arm (5), the movable block (10) and the adjusting member (9) respectively. The outer rocker arm (5) and the movable block (10) are respectively rotationally connected to the adjusting member (9) through the adjusting mating portions (28), and the adjusting member (9) is positioned and rotated between the outer rocker arm (5) and the movable block (10) through the adjusting mating portions (28).

8. The hinge with adjustable closing speed according to claim 7, characterized in that: The adjusting mating portion (28) is a stepless or stepped adjusting mating portion, and the adjusting member (9) performs stepless or stepped adjustment through the stepless or stepped adjusting mating portion.

9. The hinge with adjustable closing speed according to claim 1, characterized in that: The fixed seat assembly (1) includes a first connecting arm (17), a second connecting arm (18) and a fixed seat (19); the inner swing arm (4), the hinge cup (6), and the second connecting arm (18) are respectively hinged to the first connecting arm (17); a limiting portion (21) for limiting and installing an elastic mechanism (20) is provided on the first connecting arm (17); during the opening and closing process of the hinge, the elastic mechanism (20) elastically acts on the limiting portion (21) to realize the elastic opening and closing of the hinge.

10. The hinge with adjustable closing speed according to claim 9, characterized in that: The fixed seat (19) includes a bottom plate (22) and a connecting member (23) connected to the bottom plate (22), and the second connecting arm (18) is hinged to the connecting member (23); A limiting portion (25) is provided between the inner swing arm (4) and the outer swing arm (5), and the other end of the damping mechanism (7) acts on the limiting portion (25) when the hinge is opened to a corresponding position angle.

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