CN116876939A - A hinge with a buffer function - Google Patents

Abstract

The hinge with the buffer function comprises a fixed seat assembly, a movable seat assembly, a first connecting rod, a second connecting rod and a connecting rod assembly, wherein the first connecting rod is hinged with the fixed seat assembly and the second connecting rod respectively; when the hinge is closed, the first connecting rod and the second connecting rod do mutual 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 positioned up, down, left and right to linearly move in the inner cavity of the second connecting rod, and damping closing of the hinge is realized. According to the invention, the inclined acting part is arranged at the other end of the damping device, the rolling piece is arranged on the first connecting rod, and when the hinge is closed to a corresponding angle, the inclined acting part is in rolling contact with the rolling piece, so that the abrasion can be reduced, and the hinge can be opened and closed more smoothly.

Description

A hinge with a buffer function

Technical field

The present invention relates to the technical field of hinges, and in particular to a hinge with a buffering function.

Background technique

Chinese Patent Document No. CN101806182A disclosed a hinge with a buffering function on August 18, 2010, including a hinge provided with an automatic return damper. The hinge includes a fixed seat, a connecting arm, a link assembly and a movable seat; the connecting arm It is connected to the fixed seat and swing-connected to the movable seat through the connecting rod assembly. The connecting arm is in the form of a channel steel, and the damper is arranged in the inner cavity of the connecting arm; one end of the damper extends toward the movable seat. The piston rod of the damper extends toward the movable seat; the cylinder positioning sleeve of the damper is set in the fixed sleeve, and the fixed sleeve is fixed in the inner cavity of the connecting arm through pins, screws, buckles, riveting or welding. When the damper of this hinge is closed, the damper is prone to shaking, which makes the hinge not close smoothly. Moreover, the piston rod of the damper is in sliding contact with the movable seat, resulting in large wear and loud noise.

Therefore, further improvements are necessary.

Contents of the invention

The object of the present invention is to provide a hinge with a buffering function that has a simple structure, smooth opening and closing, little wear and tear, low noise, and strong practicability, so as to overcome the deficiencies in the prior art.

A hinge with a buffering function designed for this purpose includes a fixed seat component, a movable seat component, a first link, a second link and a link component. The first link is connected to the fixed seat component and the second link respectively. The rod is hinged, the second connecting rod is hinged with the movable seat assembly and the connecting rod assembly respectively, and the connecting rod assembly is hinged with the movable seat assembly. It is characterized in that: it also includes a damping device, and the damping device is arranged in the inner cavity of the second connecting rod. One end of the device acts on the second link; when the hinge is closed, the first link and the second link move to close each other, and when the hinge is closed to the corresponding angle, the other end of the damping device acts on the first link, so as to The damping device is positioned linearly up, down, left, and right in the inner cavity of the second link to achieve damped closing of the hinge.

The other end of the damping device is provided with an action part, and the first link is provided with a rolling element; when the hinge is closed to a corresponding angle, the damping device acts on the rolling part of the first link through the action part.

The action part is provided with an inclined surface, and when the action part acts on the rolling element, the inclined surface is in rolling contact with the surface of the rolling element.

One end of the inner cavity is provided with a notch; when the hinge is closed to a corresponding angle, the first connecting rod drives the rolling element through the notch and enters the inner cavity of the second link, so that the action portion acts on the rolling element.

The other end of the inner cavity is provided with a downwardly bent bending portion, and one end of the damping device acts on the bending portion.

The damping device is provided with a positioning part, the inner cavity is provided with a positioning support part, the positioning part is positioned and supported on the positioning support part, the damping device is provided with a first positioning surface, the inner cavity is provided with a second positioning surface, and the damping device passes The cooperation between the first positioning surface and the second positioning surface, and the cooperation between the positioning part and the positioning support part are linearly movable up and down in the inner cavity of the second connecting rod.

The positioning part is provided with a third positioning surface, and the inner cavity is provided with a fourth positioning surface. The damping device moves linearly left and right in the inner cavity of the second link through the cooperation of the third positioning surface and the fourth positioning surface.

When the hinge is opened, the first link and the second link move to open each other, and when the hinge is opened to a corresponding angle, the other end of the damping device is separated from the first link, so that the damping device can be positioned up, down, left, right, reset, and move linearly in the second link. in the inner cavity of the rod.

The rolling element is rotatably arranged on the first connecting rod through the rotary connecting piece.

The connecting rod assembly includes a third connecting rod, a fourth connecting rod and an elastic member. The third connecting rod is hinged with the fixed seat assembly, the second connecting rod and the fourth connecting rod respectively. The fourth connecting rod is hinged with the movable seat assembly. The elastic member It is arranged between the third link and the fourth link. One end of the elastic member acts on the third link, and the other end of the elastic member acts on the fourth link, so that the hinge passes through the elastic member and damping during the opening and closing process. The device realizes elastic opening and damping closing.

The invention has the following beneficial effects:

1. By arranging an inclined action part at the other end of the damping device and setting a rolling element on the first connecting rod, the inclined action part is in rolling contact with the rolling element. On the one hand, it has a guiding effect, making the movement of the damping device smoother, and thus It makes the opening and closing of the hinge smoother. On the other hand, it can greatly reduce the wear at the contact point between the action part and the rolling parts, avoid shaking when the damping device moves due to wear, and at the same time, it can greatly reduce the noise when the action part collides with the rolling parts.

2. When the damping device is closed for damping, the piston rod does not move, but the cylinder of the damping device moves, and the cylinder of the damping device moves linearly up, down, left and right in the inner cavity of the second connecting rod, which can prevent the damping device from moving. The hinge will shake in the up, down, left and right directions, so that the hinge can be closed more smoothly and with moderate closing force.

Description of the drawings

Figure 1 is a cross-sectional view when the hinge is fully opened according to an embodiment of the present invention.

Figure 2 is a cross-sectional view of the hinge when it is closed at a certain angle in an embodiment of the present invention.

FIG. 3 is a cross-sectional view of the hinge when it is completely closed according to an embodiment of the present invention.

Figure 4 is a schematic diagram of the overall structure when the hinge is fully opened in an embodiment of the present invention.

FIG. 5 is a schematic diagram of the overall structure from another orientation when the hinge is fully opened according to an embodiment of the present invention.

Figure 6 is a schematic diagram of the overall structure when the hinge is completely closed in an embodiment of the present invention.

Figure 7 is a cross-sectional view of the hinge according to an embodiment of the present invention.

Figure 8 is an exploded view of the hinge in one embodiment of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and examples.

Referring to Figures 1 to 8, this hinge with buffering function includes a fixed seat component 1, a movable seat component 2, a first link 3, a second link 15 and a link component a. The first link 3 is connected to The fixed seat component 1 and the second link 15 are hinged. The second link 15 is hinged with the movable seat component 2 and the link component a respectively. The link component a is hinged with the movable seat component 2. It also includes a damping device 4. The damping device 4 It is arranged in the inner cavity 8 of the second connecting rod 15, and one end of the damping device 4 acts on the second connecting rod 15; when the hinge is closed, the movable seat assembly 2 drives the second connecting rod 15 and the connecting rod assembly a to swing, and the first When the connecting rod 3 and the second connecting rod 15 move to close each other, and the hinge is closed to a corresponding angle, the other end of the damping device 4 acts on the first connecting rod 3, so that the damping device 4 moves linearly up, down, left, and right on the second link. In the inner cavity 8 of the rod 15 (that is, the damping device 4 linearly moves in the inner cavity 8 of the second link 15 in the front-rear direction), the damped closing of the hinge is realized.

The other end of the damping device 4 is provided with an action part 5, and the first link 3 is provided with a rolling element 6, which is a roller; when the hinge is closed to a corresponding angle, the damping device 4 acts on the first link 3 through the action part 5 on the rolling element 6.

The action part 5 is provided with an inclined surface 20. When the action part 5 acts on the rolling element 6, the inclined surface 20 is in rolling contact with the surface of the rolling element 6, that is, the rolling element 6 rolls along the inclined surface 20.

One end of the inner cavity 8 is provided with a notch 21; when the hinge is closed to a corresponding angle, the first link 3 drives the rolling element 6 through the notch 21 and enters the inner cavity 8 of the second link 15, so that the action part 5 acts on on the rolling element 6; when the hinge is opened to the corresponding angle, the first link 3 drives the rolling element 6 to move out of the inner cavity 8 of the second link 15 through the notch 21, so that the action part 5 is separated from the rolling element 6; the notch 21 is opposite The movement of the first link 3 and the rolling element 6 plays an avoidance role.

The other end of the inner cavity 8 is provided with a bent portion 16 bent downward, and one end of the damping device 4 acts on the bent portion 16 .

Positioning parts 9 are provided on both sides of the damping device 4, and positioning support parts 10 are provided on both sides of the inner cavity 8. The positioning parts 9 are positioned and supported on the positioning support part 10, and a first positioning surface 13 is provided on the top of the damping device 4. The top of the cavity 8 is provided with a second positioning surface 14. The damping device 4 moves linearly up and down on the second link 15 through the cooperation between the first positioning surface 13 and the second positioning surface 14, and the cooperation between the positioning part 9 and the positioning support part 10. Inner cavity 8.

The positioning part 9 is provided with a third positioning surface 11, and fourth positioning surfaces 12 are provided on both sides of the inner cavity 8. The damping device 4 is positioned linearly in the second position through the cooperation of the third positioning surface 11 and the fourth positioning surface 12. In the inner cavity 8 of the connecting rod 15.

The damping device 4 includes a damper 22 and a positioning sleeve 23. The positioning sleeve of the damper 22 is arranged on the positioning sleeve 23. The positioning sleeve 23 is linearly movable up and down, left and right, and is arranged in the inner cavity 8 of the connecting rod assembly a. The positioning part 9 and the first The positioning surface 13 is provided on the positioning sleeve 23, and the action part 5 is provided at the other end of the positioning sleeve 23; alternatively, the damping device 4 is a damper 22, and the damper 22 is positioned in the inner cavity 8 of the connecting rod assembly a for up, down, left and right linear motion. , the positioning part 9 and the first positioning surface 13 are provided on the damper 22 , and the action part 5 is provided on the other end of the damper 22 .

When the hinge is opened, the movable seat assembly 2 drives the second link 15 and the link assembly a to swing, the first link 3 and the second link 15 move to open each other, and when the hinge is opened to a corresponding angle, the other end of the damping device 4 Disengage the first link 3 so that the damping device 4 can be positioned up, down, left, right, reset, and move linearly in the inner cavity 8 of the second link 15; specifically, the damper 22 includes a cylinder 24, a spring 25, and a piston rod 26. The spring 25 It is arranged in the cylinder 24, the piston rod 26 is arranged at one end of the damper 22, one end of the piston rod 26 acts on the bending part 16, one end of the spring 25 elastically acts on the other end of the piston rod 26, and the other end elastically acts on the cylinder 24 , when the hinge is opened or closed to the corresponding angle, the cylinder 24 is positioned linearly up, down, left and right in the inner cavity 8 of the second connecting rod 15, and the piston rod 26 does not move. When the hinge is closed to the corresponding angle, the cylinder 24 moves toward the bending part When the hinge moves in the direction of 16, the damper 22 is compressed and the spring 25 is compressed. When the hinge is opened to a corresponding angle, under the action of the spring 25, the cylinder 24 makes a reset movement in the direction of the rolling element 6, and the damper 22 opens.

The rolling element 6 is rotatably installed on the first connecting rod 3 through the rotary connecting piece 7. Specifically, the rotary connecting piece 7 is a rotating shaft, and the rotating shaft is installed on the mounting hole 27 of the first connecting rod 3. The rolling element 6 is rotatably installed on the first connecting rod 3. on the axis of rotation.

The connecting rod assembly a includes a third connecting rod 17, a fourth connecting rod 18 and an elastic member 19. The third connecting rod 17 is hinged with the fixed seat assembly 1, the second connecting rod 15 and the fourth connecting rod 18 respectively. The fourth connecting rod 18 is hinged with the movable seat assembly 2. The elastic member 19 is provided between the third link 17 and the fourth link 18. The elastic member 19 is a spring. The first connecting member 28 is provided in the third link 17. A second connecting piece 29 is provided in the rod 18. One end of the elastic piece 19 acts on the third connecting rod 17 through the first connecting piece 28, and the other end of the elastic piece 19 acts on the fourth connecting rod 18 through the second connecting piece 29. So that the hinge can achieve elastic opening and damping closing through the elastic member 19 and the damping device 4 during the opening and closing process.

The fixed base assembly 1 includes a fixed base 30 and a connecting arm 31. The connecting arm 31 is installed on the fixed base 30. The connecting arm 31 is hinged with the first connecting rod 3 and the third connecting rod 17 respectively. The fixed base 30 is connected to the furniture wall panel 32. The movable seat assembly 2 is a movable seat, and the movable seat is connected to the furniture door panel 33 .

The connection relationship between other components of this hinge with buffering function is detailed in Chinese Patent Publication No. CN101806182A, which will not be described in detail here.

The above is the preferred embodiment of the present invention, showing and describing 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 to the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the present invention. The present invention may have various modifications without departing from the spirit and scope of the present invention. changes and improvements, which fall within the scope of the claimed invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A hinge with a buffer function, including a fixed seat assembly (1), a movable seat assembly (2), a first link (3), a second link (15) and a link assembly (a), the first One connecting rod (3) is hinged with the fixed seat assembly (1) and the second connecting rod (15) respectively, and the second connecting rod (15) is hinged with the movable seat assembly (2) and the connecting rod assembly (a) respectively. The assembly (a) is hingedly connected to the movable seat assembly (2), and is characterized by: it also includes a damping device (4), which is arranged in the inner cavity (8) of the second connecting rod (15), and the damping device (4) One end of 4) acts on the second link (15); when the hinge is closed, the first link (3) and the second link (15) make mutual closing movements, and when the hinge is closed to the corresponding angle, the damping device ( 4) The other end acts on the first connecting rod (3), so that the damping device (4) is positioned up, down, left and right and moves linearly in the inner cavity (8) of the second connecting rod (15) to realize the damping closing of the hinge. 2. The hinge with buffer function according to claim 1, characterized in that: the other end of the damping device (4) is provided with an action part (5), and the first connecting rod (3) is provided with a rolling element (6) ; When the hinge is closed to the corresponding angle, the damping device (4) acts on the rolling element (6) of the first connecting rod (3) through the action part (5). 3. The hinge with buffer function according to claim 2, characterized in that: the action part (5) is provided with an inclined surface (20), and when the action part (5) acts on the rolling element (6), it tilts The surface (20) is in rolling contact with the surface of the rolling element (6). 4. The hinge with buffering function according to claim 2, characterized in that: one end of the inner cavity (8) is provided with a notch (21); when the hinge is closed to a corresponding angle, the first connecting rod (3) drives The rolling element (6) enters the inner cavity (8) of the second connecting rod (15) through the notch part (21), so that the acting part (5) acts on the rolling element (6). 5. The hinge with buffer function according to claim 4, characterized in that: the other end of the inner cavity (8) is provided with a downwardly bent bending portion (16), and one end of the damping device (4) acts On the bending part (16). 6. The hinge with buffer function according to claim 1, characterized in that: the damping device (4) is provided with a positioning part (9), and the inner cavity (8) is provided with a positioning support part (10). The part (9) is positioned and supported on the positioning support part (10), the damping device (4) is provided with a first positioning surface (13), the inner cavity (8) is provided with a second positioning surface (14), the damping device ( 4) Through the cooperation between the first positioning surface (13) and the second positioning surface (14), and the cooperation between the positioning part (9) and the positioning support part (10), the vertical positioning linear movement is in the inner cavity of the second connecting rod (15) (8) in. 7. The hinge with buffer function according to claim 6, characterized in that: the positioning part (9) is provided with a third positioning surface (11), and the inner cavity (8) is provided with a fourth positioning surface (12) ), the damping device (4) linearly moves left and right in the inner cavity (8) of the second connecting rod (15) through the cooperation of the third positioning surface (11) and the fourth positioning surface (12). 8. The hinge with buffer function according to claim 1, characterized in that: when the hinge is opened, the first link (3) and the second link (15) move to open each other, and the hinge is opened to a corresponding angle. At this time, the other end of the damping device (4) is separated from the first connecting rod (3), so that the damping device (4) is positioned and reset linearly in the inner cavity (8) of the second connecting rod (15) up, down, left and right. 9. The hinge with buffering function according to claim 2, characterized in that: the rolling element (6) is rotatably arranged on the first connecting rod (3) through the rotary connecting piece (7). 10. The hinge with buffering function according to claim 1, characterized in that: the link assembly (a) includes a third link (17), a fourth link (18) and an elastic member (19). The three links (17) are respectively hinged with the fixed seat assembly (1), the second link (15), and the fourth link (18). The fourth link (18) is hinged with the movable seat assembly (2). The elastic member (19) is arranged between the third connecting rod (17) and the fourth connecting rod (18). One end of the elastic member (19) acts on the third connecting rod (17), and the other end of the elastic member (19) acts on the third connecting rod (17). Four connecting rods (18), so that the hinge can achieve elastic opening and damping closing through the elastic member (19) and the damping device (4) during the opening and closing process.