CN102561856A

CN102561856A - Door hinge

Info

Publication number: CN102561856A
Application number: CN201010622904XA
Authority: CN
Inventors: 胡利民
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-22
Filing date: 2010-12-22
Publication date: 2012-07-11

Abstract

The invention discloses a door hinge designed by adopting a planar four-connecting rod mechanism and a group of correlated hinge point dimension data arrays. The door hinge comprises the planar four-connecting rod mechanism which is formed by connecting a fixed seat, a long oscillating rod, a movable seat, a short oscillating rod and a pin shaft, the door hinge is characterized in that the dimension G of an installation screw hole on the fixed seat is smaller than or equal to the dimension H of a hinge point on the long oscillating rod. A notch 18 is arranged on the long oscillating rod 2 to reduce the installation dimension of the door hinge, a supporting rib 19 is arranged on the fixed seat 1, and the supporting rib 19 props against the interior structure of the fixed seat 1 to improve the rigidity of the door hinge so as to well meet the requirements of utilization functions of an embedded refrigerator door hinge and the outline appearance design of the refrigerator.

Description

A kind of hinge

Technical field

A kind of hinge of patent of the present invention relates to door of refrigerator hinge technical field, specially refers to refrigerator and is placed on the built-in refrigerator door hinge of using in the cabinet.

Background technology

Built-in refrigerator is to be placed on the electric equipment products of using in the cabinet, and different with common cupboard door hinge, the main feature of built-in refrigerator door hinge is when opening cupboard door, and the door of refrigerator and the door of cabinet are opened simultaneously.At present; The built-in refrigerator door hinge of domestic production mainly depends on import; Yet built-in refrigerator is when design; Usually with 2 screws door is cut with scissors holder and be fixedly connected, with 2 screws door is cut with scissors sliding seat and be fixedly connected, be fixedly connected with the door body of 6-10 screw with the Men Tiyu cabinet of refrigerator with refrigerator door with refrigerator body.For generally bigger display screen of design or appearance ornamental pieces in door cuts with scissors near the refrigerator inside region handsome in appearance.But the problem that has part door hinge product to exist is: it is bigger that door hinge installation dimension occupies the space of refrigerator, wherein exceeded the size range of long fork hinge point near the inboard door hinge screw installation dimension of refrigerator, influences the modeling effect of refrigerator outward appearance.

The patent of invention content

The purpose of a kind of hinge of patent of the present invention is bigger in order to solve the position that takes up space when a hinge is installed on refrigerator, and the door inboard near refrigerator cuts with scissors the size positions that the mounting screw size has exceeded long fork hinge point, influences the problem of refrigerator appearance and modeling.

For solving the problems of the technologies described above, construct a kind of hinge, comprise the lanar four rod mechanism of forming by holder, long fork, sliding seat, short fork, pivot pin, be tubular rivet for the facility of riveting has a pivot pin at least.The hinge point pitch-row size range of said lanar four rod mechanism is: the pitch-row of the pitch-row of the pitch-row of holder hinge point: 29 ± 5mm, seat hinge point: 12 ± 5mm, short fork hinge point: the pitch-row of 69 ± 5mm, long fork hinge point: 85 ± 5mm.

In above-mentioned door hinge; Breach that instrument can pass of design on long fork; Door of design hinge is installed the trip bolt hole on the holder of breach same position, passes this gap position of long fork with instrument, is easy to the door hinge is fastened on the refrigerator body; Thereby make the inboard mounting screw size reduced distances of refrigerator on the holder, and be less than or equal to the size of long fork refrigerator inboard hinge point.The inboard mounting screw size distance of refrigerator is on the holder: the size of cutting with scissors trip bolt from lugs position to the refrigerator inner door of holder refrigerator outer edge side; The size of long fork refrigerator inboard hinge point is: the size of the long fork hinge point from lugs position to the holder of holder refrigerator outer edge side.

A kind of above-mentioned hinge; Is made up of holder, long fork, sliding seat, short fork, the interconnective lanar four rod mechanism of pivot pin, it is characterized in that: the size of cutting with scissors trip bolt from lugs position to the refrigerator inner door of holder refrigerator outer edge side is less than or equal to the size of the long fork hinge point from lugs position to the holder of holder refrigerator outer edge side.

In above-mentioned door hinge, because the installation dimension scope of trip bolt reduces,, near the long fork hinge point on the holder, designed a brace rod in order to increase the rigidity of holder, said brace rod is leaning the internal construction of holder.Brace rod and holder are one, and it is the effect of playing the supporting holder after bending forms.

In above-mentioned door hinge, the cross section of said long fork or short fork is non-solid and be provided with the cross sectional shape of opening, so that improve intensity.The concrete shape of the cross section of long fork or short fork can be C shape, U-shaped, K shape, ε shape, M shape or E shape.

In the above-mentioned door hinge, be provided with a switching servomechanism between long fork and the sliding seat.Door opens and closes servomechanism and is made up of spring support ring, spring, spring base, pressing rocking arm; Wherein the spring support ring is connected on the long fork through pivot pin; Spring base can slide along the spring support ring, and spring is located between spring support ring and the spring base, and the pressing rocking arm is fixed on the sliding seat; When the pressing rocking arm rotated with sliding seat, the pressing rocking arm compressed spring through spring base.The bottom of spring base and sidepiece are respectively equipped with protruding buckle, are provided with roller at the pressing rocking arm against an end of spring base, are provided with the curved surface adaptive with the roller profile phase in the end of spring base.Being provided with on the long fork, can make limited thrust groove of spring base and thrust breach when open angle during greater than set angle.When roller promotion spring base rotated in the long fork, the buckle on the spring base fell into to thrust groove and thrust breach.

Compared with prior art, patent of the present invention has the following advantages:

1) patent of the present invention is taked the lanar four rod mechanism design; It is simple in structure; The pitch-row length of 4 connecting rod link points is one group and is made up of 4 data that are mutually related; Quadric chain with this group design data can satisfy the trip bolt installation dimension that reduces the door hinge; The cross section that satisfies long fork or short fork again is by non-solid and be provided with the high strength cross sectional shape design of opening, thereby not only satisfied the function of use requirement of built-in refrigerator door hinge but also can satisfy the designing requirement of the appearance and modeling of refrigerator.

2) cross sectional shape of the long fork of a kind of hinge of patent of the present invention or short fork specifically can be shapes such as " C ", " U ", " K ", " ε ", " E " or " M " shape, and it is simple in structure, component strength is high, cost is low.

3) patent of the present invention: the shutter door servomechanism of a kind of hinge is unique, and reliable in structure is durable, its spacing unhook design functional good, and spring stable working state, life-span are long.

Description of drawings:

Fig. 1 is a kind of hinge of a patent of the present invention structural representation;

Fig. 2 is the structure cut-away view of a kind of hinge of patent of the present invention at the state of closing the door;

Fig. 3 is patent of the present invention holder and the local screw installation drawing of long fork when closing the door state

Fig. 4 is the work partial schematic diagram of a kind of hinge of patent of the present invention in door opening state;

Fig. 5 be a kind of hinge of patent of the present invention servomechanism, and the pivot pin part split schematic diagram (the pressing rocking arm is not shown);

Fig. 6 is the long fork partial structurtes sketch map of a kind of hinge of patent of the present invention.

The specific embodiment:

In the patent of the present invention, each label of Figure of description is represented respectively:

1 holder, 2 long fork 3 short fork 4 sliding seat

5 spring support rings, 6 springs, 7 spring bases, 8 pressing rocking arms

9 rollers, 10 spring base thrust grooves, 11 spring base thrust breach

12 bracket pins, 13 rocking arm pivot pins (tubular rivet), 14 buckles

15 support shaft pin-and-holes, 16 trip bolts, 17 trip bolts, 18 long fork breach

19 holder brace rods, 20 refrigerator bodies, 21 cabinet inside walls

The flange 23 refrigerator door trip bolts 24 cupboard door bodies of 22 holder refrigerator outer edge sides

25 refrigerator doors, 26 refrigerator doors and cupboard door body trip bolt

A holder hinge point pitch-row B seat hinge point pitch-row

The long fork hinge point of the short fork hinge point pitch-row D of C pitch-row

The long fork hinge point of G fastening screw installation dimension H pitch-row size

X1 ° of door opening angle

Referring to Fig. 1～6, a kind of hinge of patent of the present invention adopts the lanar four rod mechanism design, and it is made up of members such as holder 1, long fork 2, short fork 3, sliding seat 4, flexible shutter door servomechanisms.Said door hinge is fastenedly connected the casing 20 that door cuts with scissors holder 1 and refrigerator with trip bolt 16, trip bolt 17; With refrigerator door trip bolt 23 door is cut with scissors sliding seat 4 refrigerator doors and be fastenedly connected, refrigerator door 25 and cupboard door body 24 are fastenedly connected with refrigerator door and cupboard door body trip bolt 26.On long fork 2, be provided with the long fork breach 18 that can realize that trip bolt 16 is installed, and on holder, be provided with the brace rod 19 that increases rigidity, said brace rod 19 is leaning the internal construction of holder 1.Brace rod 19 be an one with holder 1, and it is that bending forms to play and supports holder and reach the effect that rigidity is provided.The cross section of the long fork 2 of a kind of hinge of patent of the present invention or short fork 3 is non-solid and be provided with the shaped design of opening, and its structure specifically can be the cross section of shapes such as " C ", " U ", " K ", " ε ", " M ", " E ".See Fig. 1, on the quadric chain of said door hinge, be provided with the shutter door servomechanism, to have a pivot pin in convenient its pivot pin at least be the tubular rivet riveted joint in order to rivet, and the form of structure of tubular rivet is seen Fig. 5.Four connecting rod link spot sizes of a kind of hinge of patent of the present invention are: holder hinge point pitch-row A:29 ± 5mm, seat hinge point pitch-row B:12 ± 5mm, short fork hinge point pitch-row C:69 ± 5mm, long fork hinge point pitch-row D:85 ± 5mm.The size of the hinge point pitch-row A of four connecting rods, B, C, D is one group of data group that is mutually related; They have certain span and keep corresponding regular collocation relation, and said fixing collocation relation is: (A, B, C, D)=(29 ± 5mm, 12 ± 5mm, 69 ± 5mm, 85 ± 5mm).The corresponding relation of this data group specifies as follows: the span of size A is that 24mm～34mm, B size span are that 7mm～17mm, C size span are 64mm～74mm, and D size span is 80mm～90mm.Illustrate: size A, B, C, D be value in its corresponding span respectively; As: size A=24.2, size B=9, size C=65.2, dimension D=87 o'clock; Form hinge point pitch-row A, B, the C of four connecting rods, the size of D is that one group of data group that is mutually related is (24.2,9,65.2,87); When size A=32, size B=11, size C=66, dimension D=88; Another group of size of forming hinge point pitch-row A, B, C, the D of four connecting rods data group that is mutually related is (32,11,66,88); Those skilled in the art can be according to the present invention the value criterion of the A that proposes of patent, B, C, D size; The size of A, B, C, D is made suitable adjustment; Make holder hinge point pitch-row A, seat hinge point pitch-row B structure that enough spaces satisfy long fork 2 or short fork 3 arranged, and can be implemented in design shutter door servomechanism on the quadric chain of said door hinge, on position, design the breach 18 that instrument can pass near the long fork hinge point side of holder by required non-solid and be provided with the cross sectional shape design of opening; Make the position dimension of screw installation dimension, occupied spatial dimension is installed on refrigerator thereby reduce door hinge less than long fork hinge point on the holder.

Fastening screw installation dimension G is: from the size of refrigerator outer edge side flange 22 positions to trip bolt 16 positions on the holder 1; Long fork hinge point pitch-row size H is: the size of the long fork hinge point from refrigerator outer edge side flange 22 positions to the holder on the holder.Flange 22 on the holder 1 is fitted with cabinet inwall 21 each other, and the gap is very little usually.

A kind of hinge of patent of the present invention; Be made up of holder 1, long fork 2, sliding seat 4, short fork 3, pivot pin 13 interconnective lanar four rod mechanisms, it is characterized in that: the trip bolt 16 installation dimension G on the holder 1 are less than or equal to the size H of long fork 2 upper hinge points.

A kind of hinge of patent of the present invention be through above-mentioned design, thereby satisfy the function of use and the appearance and modeling designing requirement of built-in refrigerator door hinge, thereby reach simple in structure, compact, intensity is high, the technique effect of good endurance.

A kind of concrete shutter door servomechanism design scheme of hinge of patent of the present invention is between long fork 2 and sliding seat 4, to be provided with flexible shutter door servomechanism, and the convenience when realizing opening door is with dexterous.

Shutter door servomechanism principle: see also Fig. 1～6, flexible shutter door servomechanism is arranged between long fork 2 and the sliding seat 4, comprising: spring support ring 5, spring 6, spring base 7 and pressing rocking arm 8.End at pressing rocking arm 8 is provided with roller 9, and pressing rocking arm 8 usefulness pivot pins are riveted in the hole of two hinge points of sliding seat 4, and pivot pin 13 is the tubular rivet riveted joint.Wherein long fork 2 also is the hole of the rocking arm pivot pin 13 of pressing rocking arm 8 with the hole of the hinge point of sliding seat 4.

See Fig. 6, on long fork 2, be provided with the pin hole 15 of spring support ring, spring support pin 12 is installed on the pin hole 15.Spring support ring 5 can rotate around spring support pin 12.In a segment distance of switch door process, roller 9 will contact with the outer end curved surface of spring base 7, and the outer face curve form of the outline of roller 9 and spring base 7 is suitable.See Fig. 5, spring base 7 is slidingly connected with spring support ring 5, in establish spring 6, under the pressure effect of the elastic force of spring 6 and roller 9, spring base 7 slides in spring support ring 5.See Fig. 4, Fig. 6, on the sidepiece of long fork 2, be provided with spring base thrust groove 10, be provided with thrust breach 11 in the bottom of long fork 2.The buckle 14 that is respectively equipped with protrusion in the side and the bottom surface of spring base 7; In the process of opening the door; Spring support ring 5 drives spring 6 with spring base 7 rotations around the spring support pin on the long fork 12 rotation, when opening after X1 ° of door angle reach certain angle; The buckle 14 of spring base 7 sidepieces and bottom drops into respectively in thrust groove 10 and the thrust breach 11 under the effect of rocking arm 8 and roller 9.When rocking arm 8 continues when rocking arm pivot pin 13 rotates counterclockwise; Because of spring base 7 receives the restriction of thrust groove 10 and thrust breach 11, pressing rocking arm 8 and spring base 7 are broken off relations, spring force no longer acts on the roller 9; the power-assisted effect of rocking arm 8 disappears, thereby forms intermittently assist function.After refrigerator doors was reached the unhook state, the door body was in free movement state; Otherwise; In the process of closing the door, rocking arm 8 clockwise rotates around rocking arm pivot pin 13, and roller 9 enters on the outer end curved surface of spring base 7 and goring push spring seat 7 rotates around spring support pin 12; Make buckle 14 leave thrust groove 10 and thrust breach 11, promote the door auto-closing thereby spring 6 discharges the elastic force energy.

Help that to inhale the rotatablely move detailed description that realizes of principle following:

The process of opening the door: when door is opened when reaching an opening angle X1 °; The member direction of rotation that door opens and closes its each several part of servomechanism is: sliding seat 4 for

to, long fork 2 be to, pressing rocking arm 8 is

to; Spring support ring 5, spring 6, spring base 7 rotate around the spring support pin on the long fork 2 12 under roller 9 thrust of pressing rocking arm 8; When roller 9 axle center went to the line of centres of spring support pin 12 and rocking arm pivot pin 13, it is maximum that the decrement of spring 6 reaches for

for rotation direction; When roller 9 axle center had turned over the line of centres of spring support pin 12 and rocking arm pivot pin 13, spring 6 began to discharge elastic energy, made roller 9 produce the tangential elasticity component that points to the direction of opening the door, and promotes pressing rocking arm 8 drive sliding seat 4 door is opened.After door continues to be opened to certain angle; Buckle 14 on spring base 7 sidepieces and the bottom drops in thrust groove 10 on the long fork, the thrust breach 11 around spring support pin 12 rotation under the effect of roller 9, and roller 9 and spring base 7 are broken off relations; Spring force no longer acts on the roller 9; Thereby form intermittently assist function, realize that after door was reached the unhook state, door can be in free movement state.

The process of closing the door: the door body that promotes to be in opening; Sliding seat 4 is towards the direction rotation of closing the door; Roller 9 enter on the outer end curved surface of spring base 7 and goring push spring seat 7 around 12 rotations of spring support pin; Make buckle 14 leave thrust groove 10 and thrust breach 11, when roller 9 axle center went to the line of centres of spring support pin 12 and rocking arm pivot pin 13, it is maximum that the decrement of spring 6 reaches; When roller 9 turned over the line of centres of spring support pin 12 and rocking arm pivot pin 13, spring 6 discharges elastic force made roller 9 produce the tangential elasticity component that points to the direction of closing the door, and spring 6 discharges elastic energies promotion pressing rocking arm 8 and drives sliding seat 4 with the door auto-closing.

A kind of hinge of patent of the present invention is owing to adopted above-mentioned lanar four rod mechanism and one group of hinge point sized data group design that is mutually related; Through gap 18 on long fork 2; Realized reducing of door hinge installation dimension, and on holder 1, be provided with brace rod 19, said brace rod 19 is leaning the internal construction of holder 1; Improve the rigidity of door hinge, thereby satisfy the function of use of built-in refrigerator door hinge and the appearance and modeling designing requirement of refrigerator preferably.

Claims

1. a door cuts with scissors; Form by holder (1), long fork (2), sliding seat (4), short fork (3), the interconnective lanar four rod mechanism of pivot pin (13); It is characterized in that: trip bolt (16) installation dimension (G) on the holder (1) is less than or equal to the size (H) of long fork (2) upper hinge point, and said trip bolt (16) installation dimension (G) is to the size of cutting with scissors trip bolt (16) installation site from refrigerator outer edge side flange (22) position on the holder (1); Said long fork (2) hinge point pitch-row size (H) is the size (H) of the long fork hinge point from refrigerator outer edge side flange (22) position to the holder (1) on the holder (1).

2. a kind of hinge according to claim 1; It is characterized in that: the hinge point pitch-row size of said lanar four rod mechanism is made up of the one group of data that is mutually related; These group data have certain span, also the fixing collocation of formation concerns; The span of said hinge point pitch-row size is: pitch-row (B)=12 ± 5mm of the pitch-row of holder hinge point (A)=29 ± 5mm, seat hinge point, pitch-row (C)=69 ± 5mm of short fork hinge point, pitch-row (D)=85 ± 5mm of long fork hinge point form described fixing collocation and concern and be: (A, B, C, D)=(29 ± 5mm, 12 ± 5mm, 69 ± 5mm, 85 ± 5mm).

3. a kind of hinge according to claim 1 is characterized in that: go up long fork (2) hinge point side at holder (1) and be provided with brace rod (19), said brace rod (19) is leaning the internal construction of holder (1).

4. a kind of hinge according to claim 1 is characterized in that: on long fork (2), be provided with long fork breach (18), trip bolt (16) makes a hinge holder (1) be connected fastening with refrigerator body (20) through long fork breach (18).

5. a kind of hinge according to claim 1 is characterized in that: the cross section right and wrong of said long fork (2) or short fork (3) are solid and be provided with the cross sectional shape of opening.

6. a kind of hinge according to claim 5 is characterized in that: be provided with a switching servomechanism between said long fork (2) and the sliding seat (4).

7. a kind of hinge according to claim 6; It is characterized in that: described door opens and closes servomechanism and is made up of spring support ring (5), spring (6), spring base (7), pressing rocking arm (8); Said spring support ring (5) is connected in the long fork (2); Spring base (7) can slide along spring support ring (5), and spring is located between spring support ring (5) and the spring base (7), and pressing rocking arm (8) is fixed on the sliding seat (4); When pressing rocking arm (8) rotated with sliding seat (4), pressing rocking arm (8) can push described spring through spring base (7).

8. a kind of hinge according to claim 7; It is characterized in that: be provided with protruding buckle (14) in the bottom of spring base (7); Establish roller (9) at pressing rocking arm (8) against an end of spring base (7); Be provided with and the adaptive curved surface of roller (9) profile phase in the end of spring base (7); Can make spring base (7) at door angle of release degree limited thrust breach (11) when setting open angle being provided with on the long fork (2), when roller (9) promotes spring base (7) and rotates to long fork (2) in, in buckle (14) the screw-in thrust breach (11) of spring base (7).

9. a kind of hinge according to claim 7; It is characterized in that: the sidepiece at spring base (7) is provided with protruding buckle (14); Establish roller (9) at pressing rocking arm (8) against an end of spring base (7); Be provided with and the adaptive curved surface of roller (9) profile phase in the end of spring base (7); Can make spring base (7) at door angle of release degree limited thrust groove (10) when setting open angle being provided with on the long fork (2), when roller (9) promotes spring base (7) and rotates to long fork (2) in, in buckle (14) the screw-in thrust groove (10) of spring base (7).

10. according to claim 1 or a kind of hinge according to claim 6, it is characterized in that: in said door hinge, having a pivot pin at least is tubular rivet (13).