CN221568201U - Embedded buffering hinge - Google Patents

Abstract

The utility model provides an embedded buffer hinge which comprises a fixed seat, a base and a transmission part, wherein the transmission part comprises a six-bar assembly, a closed buffer device is arranged between the six-bar assembly and the fixed seat, the closed buffer device comprises a buffer damper and a damping bar, the fixed seat is provided with a damping mounting seat for connecting a cylinder body shaft of the buffer damper, a push rod of the buffer damper is connected with a swinging end of the damping bar, a fixed end of the damping bar is arranged at a transmission hinge point of the six-bar assembly through a fixed shaft, the fixed shaft is provided with a torsion spring, and two elastic ends of the torsion spring are respectively connected with the six-bar assembly and the damping bar; an automatic closing power component is arranged between the six-connecting-rod assembly and the base, and two ends of the automatic closing power component are respectively connected to the six-connecting-rod assembly and the hinging point of the six-connecting-rod assembly and the base. The structure is optimized, the stability is high, the installation is convenient, the automatic door closing function is realized, the buffering effect is realized, the use is convenient, and the use quality is ensured.

Description

Embedded buffering hinge

Technical Field

The utility model relates to the technical field of hinges, in particular to an embedded buffer hinge.

Background

Most of embedded hinges are used for electric products, such as refrigerators, ovens and the like, so that the door body is rotated to be opened and closed on the cabinet body, the operation is convenient, and the space is saved.

The prior Chinese patent number: ZL201410188238.1, an embedded refrigerator door hinge and an embedded refrigerator, which discloses a door hinge comprising a fixed hinge seat, a movable hinge seat, a long swing rod, a first short swing rod, a second short swing rod and a third short swing rod; one end of the long swing rod is hinged on the fixed hinge seat; the first short swing rod and the second short swing rod are hinged with the long swing rod at one end and the movable hinge seat at the other end; one end of the third short swing rod is hinged with the fixed hinge seat, and the other end of the third short swing rod is hinged on the second short swing rod. Thus, the six-bar linkage is formed by the fixed hinge seat, the movable hinge seat, the long swinging rod and the three short swinging rods, so that the opening and closing of the embedded refrigerator door are realized.

However, the hinge structure has the following disadvantages in practical application:

1) The hinge structure is provided with the door opening and closing power assisting mechanism, and the door opening and closing power assisting mechanism has the advantages that the door opening and closing power assisting mechanism has a certain degree of door opening and closing power assisting, so that the door opening and closing power assisting mechanism achieves door opening and closing power saving, the six-bar mechanism easily generates rotating torque during rotation, under the influence of radial stress, the six-bar mechanism easily generates uneven stress, door opening and closing is caused, even the door opening and closing cannot be assisted, the door opening and closing power assisting mechanism is particularly used for a door body with a larger load, manual auxiliary door closing is still needed, the transmission is poor, and the use quality still needs to be improved.

2) The hinge structure has no buffer function, so that noise is easy to generate when the hinge structure is closed, the use experience is poor, other transmission parts are easy to damage, and the service life is reduced.

3) The hovering opening angle of the hinge structure cannot reach the maximum design angle, and the use limitation is large.

4) Install the five metals pedestal at the door body and the cabinet body, rock from top to bottom after the atress easily when using, when the door body load is great especially, rock more obviously, stability is poor, influences product quality of use.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the embedded buffer hinge which has the advantages of optimized structure, high stability, convenient installation, automatic door closing function, buffer effect, convenient use, better experience and guarantee of use quality.

The utility model aims at realizing the following steps: the utility model provides an embedded buffering hinge, includes fixing base, base and supplies the base and the transmission part that the fixing base was opened relatively usefulness, transmission part is including articulating six link assembly between base and fixing base, be equipped with closed buffer between six link assembly and the fixing base, closed buffer includes buffer damper, damping connecting rod, the fixing base is equipped with the damping mount pad that is used with buffer damper's cylinder body hub connection, buffer damper's ejector pin is connected with damping connecting rod's swing end, damping connecting rod's stiff end is installed at six link assembly's transmission pin joint through the fixed axle, the torsional spring that supplies buffer damper's ejector pin to remain throughout and upwards draw out the potential state usefulness is installed to the fixed axle, two elastic ends of torsional spring are connected respectively at six link assembly, damping connecting rod.

According to the optimization, an automatic closing power component which is elastically acted on the base during closing to generate a closing rotation power arm is arranged between the six-bar assembly and the base, one end of the automatic closing power component is connected to the six-bar assembly, and the other end of the automatic closing power component is connected to a hinge point of the six-bar assembly and the base.

According to the optimization, the six-connecting-rod assembly comprises a driving arm, a connecting rod and a swinging rod, wherein the swinging ends of the connecting arm and the connecting rod are hinged on a base in front and back, the connecting ends of the connecting arm and the connecting rod are hinged on the swinging ends of the driving arm in front and back, the positioning end of the driving arm is hinged on a fixed seat, a buffer damper is arranged in the driving arm, a cylinder body shaft of the buffer damper is connected on the hinging point of the driving arm and the fixed seat, the driving arm is provided with a fixed shaft connected with a damping connecting rod shaft, a torsion spring is sleeved on the fixed shaft, the two elastic ends of the torsion spring are respectively connected on the inner side wall of the driving arm and the damping connecting rod,

The hinge point of the transmission arm and the connecting arm is connected with the positioning end of the automatic closing power component, and the hinge point of the base and the connecting arm is connected with the swinging end of the automatic closing power component.

According to the optimization, the transmission arm and the swing rod respectively swing downwards around the hinge point with the fixed seat, meanwhile, the connection arm and the connection rod are driven to swing downwards around the hinge point with the transmission arm respectively and the base is driven to fold towards the fixed seat, and then a damping starting included angle for triggering the buffer damper is formed between the base and the fixed seat.

And optimizing according to the above, wherein the damping start included angle is set to be 40-0 degrees.

According to the optimization, the automatic closing power component comprises a cam, rollers, swinging rods and an elastic transmission rod group, wherein the cam is fixedly installed on the base, the positioning end shaft of the elastic transmission rod group is connected to a hinge point between the transmission arm and the connecting arm, the positioning end shaft of the swinging rods is connected to the connecting arm, the swinging ends of the swinging rods are connected to the swinging ends of the elastic transmission rod group, the roller shafts are connected to the swinging ends of the elastic transmission rod group, and the rollers swinging along with the connecting arms are always in rolling connection with the cam under the elastic action of the elastic transmission rods.

According to the optimization, the cam is provided with the arc outer edge which enables the hinging point of the base and the connecting arm, the tangent point of the cam and the roller and the circle center of the roller to be in three-point collinear positions and is not used for generating a switch arm, the end part of the arc outer edge is connected with the arc convex edge which enables the elastic force of the elastic transmission rod group to pass through the circle center of the roller, the tangent point of the roller and the cam and act on the cam to generate the arc convex edge for closing the rotating arm, and the roller rolls back and forth on the arc outer edge and the arc convex edge along with the up and down swinging of the connecting arm.

According to the optimization, the cam is provided with the mounting hole fixed at the hinging point of the base and the connecting arm, and the mounting hole and the outer edge of the circular arc are concentric circles.

According to the optimization, the fixing seat is provided with the hinged end part hinged with the six-connecting-rod assembly, the hinged end part is provided with the reinforced inverted hook for preventing up-and-down movement after stress, and the fixing seat is provided with the buckling groove for buckling the reinforced inverted hook.

According to the optimization, the base is provided with the upper mounting seat with the mounting hole, the upper mounting seat is spliced on one side of the base, and the upper mounting seat is provided with the connecting block fixed on the upper surface of the base.

The utility model has the advantages that:

1) The structure cooperation of closing buffer device and six link assembly can realize that the hinge has the closed buffering effect during the closure, simple structure, simultaneously under the structural characteristic effect of this closed buffer device of structure, produce rotatory torsional force and make closed buffer device atress uneven when avoiding six link assembly wobbling, promote closed buffer device's buffering effect.

2) Under the action of the automatic closing power component, the hinge can generate closing rotation power arms when being closed to a certain angle, so that the hinge has an automatic closing function, high structural transmission stability and convenient use.

3) The structure of falling the buckle is strengthened in the cooperation, effectively avoids the both sides of fixing base to take place the phenomenon of rocking from top to bottom after the atress, improves the structural stability.

4) Through addding the mount pad, make things convenient for base and door body assembly, avoid trompil on the base, strengthen compressive strength, guarantee assembly stability, guarantee the quality of use of product again.

Drawings

Fig. 1 is a schematic view of a closed state according to a preferred embodiment of the present utility model.

Fig. 2 is a cross-sectional view showing a closed state according to a preferred embodiment of the present utility model.

FIG. 3 is a schematic view showing the structure of the closing buffer means according to the preferred embodiment of the present utility model.

FIG. 4 is a cross-sectional view of a closure cushioning device intervention in accordance with a preferred embodiment of the present utility model.

Fig. 5 is a schematic view of the structure of the preferred embodiment of the present utility model in the automatic closing start position.

Fig. 6 is a cross-sectional view of a preferred embodiment of the present utility model in an automatic closing start position.

Fig. 7 is a schematic view of a structure of the present utility model opened at a 90 degree angle.

Fig. 8 is a cross-sectional view of a preferred embodiment of the present utility model open at a 90 degree angle.

Fig. 9 is a view showing a structure in which the preferred embodiment of the present utility model is opened at a maximum angle.

Fig. 10 is a cross-sectional view of a preferred embodiment of the present utility model opened at a maximum angle.

FIG. 11 is a schematic view of a cam according to a preferred embodiment of the present utility model.

Fig. 12 is a schematic structural view of a fixing base according to a preferred embodiment of the present utility model.

Fig. 13 is a left side view of the fixing base according to the preferred embodiment of the present utility model.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

According to fig. 1 to 13, an embedded buffer hinge comprises a fixed seat 1, a base 2 and a transmission component for opening and closing the base 2 and the fixed seat 1. The transmission part comprises a six-connecting-rod assembly 3 hinged between the base 2 and the fixed seat 1, and a closed buffer device is arranged between the six-connecting-rod assembly 3 and the fixed seat 1. The closing buffer device comprises a buffer damper 4 and a damping connecting rod 5, wherein a damping mounting seat 6 for connecting a cylinder body shaft of the buffer damper 4 is arranged on the fixing seat 1, a push rod of the buffer damper 4 is connected with a swinging end of the damping connecting rod 5, and a fixed end of the damping connecting rod 5 is arranged at a transmission hinge point of the six-connecting-rod assembly 3 through a fixed shaft. And the fixed shaft is provided with a torsion spring 7 for keeping the ejector rod of the buffer damper 4 in an upward pulling state all the time, and two elastic ends of the torsion spring 7 are respectively connected with the six-bar assembly 3 and the damping connecting bar 5.

As shown in fig. 1 to 13, further details, the six-bar linkage assembly 3 includes a driving arm 31, a connecting arm 32, a connecting rod 33, and a swing link 34. The swing end of link arm 32 and connecting rod 33 articulates on base 2 from beginning to end, and the link end of link arm 32 and connecting rod 33 articulates the swing end at drive arm 31 from beginning to end, the locating end of drive arm 31 articulates on fixing base 1, buffer damper 4 is arranged in drive arm 31, and buffer damper 4's cylinder body hub connection is on drive arm 31 and fixing base 1 pin joint, the fixed axle with damping connecting rod 5 hub connection is installed to drive arm 31, torsional spring 7 suit is on the fixed axle and its both ends elastic end are connected respectively on the inside wall of drive arm 31 and damping connecting rod 5.

In practical application, the driving arm 31 and the swinging rod 34 swing downwards around the hinge point with the fixing base 1 respectively, and meanwhile, the connecting arm 32 and the connecting rod 33 are driven to swing downwards around the hinge point with the driving arm 31 respectively and drive the base 2 to fold towards the fixing base 1, so that a damping start included angle for touching the buffer damper 4 is formed between the base 2 and the fixing base 1. The damping start included angle is set to 40 degrees to 0 degrees, so that the damping start included angle can be set to 40 degrees, 35 degrees, 30 degrees and the like according to practical application.

That is, when the hinge is closed, the base 2 swings toward the fixed seat 1 to drive the six-bar assembly 3 to fold, so that the driving arm 31 and the swing rod 34 swing downward around the hinge point with the fixed seat 1 respectively. The damping start included angle that this figure shows is 35, and when base 2 swings to damping start included angle 40, connecting rod 33 drives damping connecting rod 5 under the effect of external force and overcomes the elastic force of torsional spring 7 and swing towards buffer damper 4 direction to promote the top of buffer damper 4 to push inwards, reach and touch buffer damper 4, realize the buffering effect, protect the hinge. During the period, the torsion spring 7 always provides upward lifting force for the ejector rod of the buffer damper 4, so that uneven stress on the closing buffer device caused by rotation torsion force generated when the six-link assembly 3 swings is avoided, and the buffer effect of the closing buffer device is improved.

Referring to fig. 1 to 13, an automatic closing power unit 8 for elastically acting on the base 2 during closing to generate a closing rotation power arm is provided between the six-bar linkage 3 and the base 2, one end of the automatic closing power unit 8 is connected to the six-bar linkage 3, and the other end of the automatic closing power unit 8 is connected to a hinge point of the six-bar linkage 3 and the base 2.

In actual operation, the hinge point of the transmission arm 31 and the connecting arm 32 is connected with the positioning end of the automatic closing power component 8, and the hinge point of the base 2 and the connecting arm 32 is connected with the swinging end of the automatic closing power component 8.

Wherein, the automatic closing power part 8 comprises a cam 81, a roller 82, a swinging rod 83 and an elastic transmission rod group 84. The cam 81 is fixedly mounted on the base 2, and the positioning end shaft of the elastic transmission rod group 84 is connected to the hinge point between the transmission arm 31 and the connecting arm 32. The positioning end of the swinging rod 83 is connected to the connecting arm 32, and the swinging end of the swinging rod 83 is connected to the swinging end of the elastic transmission rod group 84. The roller 82 is connected to the swing end of the elastic transmission rod set 84, and the roller 82 swinging along with the connecting arm 32 is always connected to the cam 81 in a rolling way under the elastic action of the elastic transmission rod.

The cam 81 is provided with an arc outer edge 811 for making the hinge point of the base 2 and the link arm 32, the tangential point of the cam 81 and the roller 82, and the center of the roller 82 be in a three-point collinear position without generating a switching arm, and an arc convex edge 812 for making the elastic force of the elastic transmission rod group 84 pass through the center of the roller 82, the tangential point of the roller 82 and the cam 81, and acting on the cam 81 to generate a closing rotation arm is connected to the end of the arc outer edge 811. The roller 82 rolls back and forth on the circular arc outer edge 811 and the circular arc convex edge 812 along with the up and down swinging of the connecting arm 32.

Thus, when the hinge is opened to a specific angle, the specific angle is selected to be 30 degrees, 35 degrees or 40 degrees, after the structural drawing shows 35 degrees, the roller 82 rolls on the arc outer edge 811 of the cam 81, at this time, the hinge point of the base 2 and the connecting arm 32, the tangent point of the cam 81 and the roller 82, and the center of the roller 82 are in three-point collinear positions, and no opening force arm is generated, and no closing force arm is generated, so that the hinge opening hovering function is realized. The drawing of the present structure also shows the hover angle at 90 deg. and maximum open.

And, the cam 81 is opened and is fixed the mounting hole 813 at the articulated joint of base 2 and linking arm 32, mounting hole 813 and circular arc outer edge 811 are concentric circles, cooperate the structure of six link assembly 3, promote to open and hover the design of maximum angle and can reach 125, realize that the hinge optimizes the wide-angle and opens, convenient to use.

The closing angle of the present structure is selected to be 35 deg. when the hinge is closed to or below a specified angle, such as 30 deg., 35 deg. or 40 deg.. The roller 82 rolls to the arc convex edge 812 of the cam 81, at this time, the elastic force of the spring transmission rod group passes through the circle center of the roller 82, the tangent point of the roller 82 and the cam 81 and elastically acts on the cam 81, so that a closing rotation force arm is generated between the six-connecting-rod assembly 3, and the base 2 is driven to be automatically closed on the fixed seat 1, the hinge is automatically closed, and the operation and the use are convenient.

Referring to fig. 1 to 13, the fixing base 1 is provided with a hinged end 10 hinged with the six-bar assembly 3, the hinged end 10 is provided with a reinforced inverted hook 9 for preventing up-and-down movement after stress, and the fixing base 1 is provided with a fastening slot 11 for fastening the reinforced inverted hook 9.

The reinforced inverted hook 9 at the hinged end part 10 is matched with the structure of the buckling groove 11, so that the phenomenon that the two sides of the fixed seat 1 shake up and down after being stressed is effectively avoided, and the structural stability is improved.

And the base 2 is provided with an upper mounting seat 12 with a mounting hole 813, the upper mounting seat 12 is spliced on one side of the base 2, and the upper mounting seat 12 is provided with a connecting block 13 fixed on the upper surface of the base 2.

Through addding mount pad 12, make things convenient for base 2 and door body assembly, avoid trompil on base 2, the convenient production is made, strengthens compressive strength again, guarantees assembly stability, guarantees the quality of use of product again.

The above embodiments are only specific embodiments with good effects, and all structures identical or equivalent to the embedded buffer hinge of the present utility model are within the protection scope of the present utility model.

Claims (10)

1. The utility model provides an embedded buffering hinge, includes fixing base (1), base (2) and supplies base (2) and fixing base (1) relative open and close the transmission part of usefulness, its characterized in that: the transmission part comprises a six-connecting-rod assembly (3) hinged between a base (2) and a fixed seat (1), a closed buffer device is arranged between the six-connecting-rod assembly (3) and the fixed seat (1), the closed buffer device comprises a buffer damper (4) and a damping connecting rod (5), the fixed seat (1) is provided with a damping mounting seat (6) connected with a cylinder body shaft of the buffer damper (4), a push rod of the buffer damper (4) is connected with a swinging end of the damping connecting rod (5), a fixed end of the damping connecting rod (5) is mounted at a transmission hinge point of the six-connecting-rod assembly (3) through a fixed shaft, a torsion spring (7) for enabling the push rod of the buffer damper (4) to be always pulled out upwards is mounted on the fixed shaft, and two elastic ends of the torsion spring (7) are respectively connected with the six-connecting-rod assembly (3) and the damping connecting rod (5).

2. The embedded cushion hinge of claim 1, wherein: an automatic closing power component (8) which is elastically acted on the base (2) during closing to generate a closing rotation power arm is arranged between the six-connecting-rod assembly (3) and the base (2), one end of the automatic closing power component (8) is connected to the six-connecting-rod assembly (3), and the other end of the automatic closing power component (8) is connected to a hinge point of the six-connecting-rod assembly (3) and the base (2).

3. The embedded cushion hinge of claim 2, wherein: the six-connecting-rod assembly (3) comprises a driving arm (31), a connecting arm (32), a connecting rod (33) and a swinging rod (34), wherein the swinging ends of the connecting arm (32) and the connecting rod (33) are hinged on the base (2) front and back, the connecting ends of the connecting arm (32) and the connecting rod (33) are hinged on the swinging ends of the driving arm (31) front and back, the positioning end of the driving arm (31) is hinged on the fixed seat (1), the buffer damper (4) is arranged in the driving arm (31), the cylinder body shaft of the buffer damper (4) is connected on the hinge point of the driving arm (31) and the fixed seat (1), the driving arm (31) is provided with a fixed shaft connected with the damping connecting rod (5) shaft, the torsion spring (7) is sleeved on the fixed shaft, and the two elastic ends of the torsion spring (7) are respectively connected on the inner side wall of the driving arm (31) and the damping connecting rod (5),

The hinge point of the transmission arm (31) and the connecting arm (32) is connected with the positioning end of the automatic closing power component (8), and the hinge point of the base (2) and the connecting arm (32) is connected with the swinging end of the automatic closing power component (8).

4. The embedded cushion hinge of claim 3, wherein: the transmission arm (31) and the swing rod (34) swing downwards around the hinge point with the fixed seat (1) respectively, meanwhile, the connecting arm (32) and the connecting rod (33) are driven to swing downwards around the hinge point with the transmission arm (31) respectively and drive the base (2) to fold towards the fixed seat (1), and then a damping starting included angle for touching the buffer damper (4) is formed between the base (2) and the fixed seat (1).

5. The embedded cushion hinge of claim 4, wherein: the damping start included angle is set to 40-0 degrees.

6. The embedded cushion hinge of claim 3, wherein: the automatic closing power component (8) comprises a cam (81), a roller (82), a swinging rod (83) and an elastic transmission rod group (84), wherein the cam (81) is fixedly arranged on a base (2), the positioning end of the elastic transmission rod group (84) is connected onto a hinge point between a transmission arm (31) and a connecting arm (32) through a shaft, the positioning end of the swinging rod (83) is connected onto the connecting arm (32), the swinging end of the swinging rod (83) is connected onto the swinging end of the elastic transmission rod group (84), the roller (82) is connected onto the swinging end of the elastic transmission rod group (84) through a shaft, and the roller (82) swinging along with the connecting arm (32) is always connected onto the cam (81) through rolling under the elastic action of the elastic transmission rod.

7. The embedded cushion hinge of claim 6, wherein: the cam (81) is provided with a hinge point for enabling the base (2) and the connecting arm (32), a tangent point of the cam (81) and the roller (82) and a circle center of the roller (82) to be in a three-point collinear position without generating a circular arc outer edge (811) for a switch arm, the end part of the circular arc outer edge (811) is connected with a circular arc convex edge (812) for enabling elastic force of the elastic transmission rod group (84) to pass through the circle center of the roller (82), the tangent point of the roller (82) and the cam (81) and act on the cam (81) to generate a circular arc convex edge (812) for closing the rotating arm, and the roller (82) rolls back and forth on the circular arc outer edge (811) and the circular arc convex edge (812) along with the up and down swinging of the connecting arm (32).

8. The embedded cushion hinge of claim 7, wherein: the cam (81) is provided with a mounting hole (813) fixed at a hinge point of the base (2) and the connecting arm (32), and the mounting hole (813) and the arc outer edge (811) are concentric circles.

9. The embedded cushion hinge of claim 1, wherein: the fixing seat (1) is provided with a hinged end part (10) hinged with the six-connecting-rod assembly (3), the hinged end part (10) is provided with a reinforced inverted hook (9) for preventing up-and-down movement after stress, and the fixing seat (1) is provided with a buckling groove (11) for buckling the reinforced inverted hook (9).

10. The embedded cushion hinge of claim 1, wherein: the base (2) is provided with an upper mounting seat (12) with a mounting hole (813), the upper mounting seat (12) is spliced on one side of the base (2), and the upper mounting seat (12) is provided with a connecting block (13) fixed on the upper surface of the base (2).