CN201943483U

CN201943483U - Door hinge

Info

Publication number: CN201943483U
Application number: CN201020670360XU
Authority: CN
Inventors: 胡利民
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-11
Filing date: 2010-12-11
Publication date: 2011-08-24
Anticipated expiration: 2020-12-11

Abstract

The utility model discloses a door hinge which comprises a planar four-link mechanism, wherein the planar four-link mechanism comprises a fixed hinge holder, a long swing link, a movable hinge holder and a short swing link, which are interconnected with one another; the pitch ranges of the hinge points of the planar four-link mechanism are as follow: the pitch of the hinge points of the fixed hinge holder is 29 plus or minus 5 mm, the pitch of the hinge points of the movable hinge holder is 12 plus or minus 5 mm, the pitch of the hinge points of the short swing link is 69 plus or minus 5 mm, and the pitch of the hinge points of the long swing link is 85 plus or minus 5 mm. The dimensional design of the planar four-link mechanism can not only satisfy the cross-sectional structure design that the cross section of the long or the short swing link is non-solid and has an opening, but also ensure that the pitch of the mounting screw of the door hinge is less than that of the hinge points of the long swing link, so as to meet the need for reducing the overall dimension of an embedded refrigerator door hinge.

Description

A kind of hinge

Technical field

A kind of hinge of the utility model 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 of domestic production hinge mainly depends on import, but the problem that has part door hinge product to exist is: the space that the door hinge occupies on the refrigerator when mounted is bigger, and the outer rim scope that screw has exceeded hinge point is installed, and influences the design of refrigerator outward appearance.

The utility model content

The purpose of a kind of hinge of the utility model is bigger in order to solve the position that takes up space when a hinge is installed on refrigerator, and the outer rim that screw has exceeded hinge point is installed, and influences the problem of refrigerator appearance design.

For solving the problems of the technologies described above, construct a kind of hinge, comprise the lanar four rod mechanism of forming by fixed hinge seat, long fork, hinges seat, short fork, and to have a link pivot pin at least be that tubular rivet is riveted.The hinge point pitch-row size range of described lanar four rod mechanism is: the pitch-row of the pitch-row of the pitch-row of fixed hinge seat hinge point: 29 ± 5mm, hinges 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, on position, design the breach that instrument can pass near long fork left side, hinge trip bolt hole of design on the holder below the position of breach, pass through this gap position of long fork with instrument, be easy to the hinge screws of this position fastening, make the position dimension of screw installation dimension, occupied spatial dimension is installed on refrigerator thereby reduce door hinge less than long fork left side hinge point.

In above-mentioned door hinge,,, near the long fork left side hinge point on the holder, design a brace rod in order to increase the rigidity of holder because the installation dimension scope of trip bolt reduces.

In above-mentioned door hinge, the cross section of described 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 hinges 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 by pivot pin, spring base can slide along the spring support ring, spring is located between spring support ring and the spring base, the pressing rocking arm is fixed on the hinges seat, when the pressing rocking arm rotated with the hinges seat, the pressing rocking arm compressed spring by spring base.The bottom of spring base and sidepiece are respectively equipped with the buckle of projection, 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, the utlity model has following advantage:

1) the utility model 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, the design of these group data makes quadric chain can satisfy minimizing hinge installation site size, 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 satisfies the function of use that the built-in refrigerator door cuts with scissors and the appearance and modeling designing requirement of refrigerator.

2) cross sectional shape of the long fork of a kind of hinge of the utility model 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) the utility model: the shutter door servomechanism uniqueness of a kind of hinge, reliable in structure is durable, its spacing unhook design functional good, spring stable working state, life-span are long.

Description of drawings:

Fig. 1 is a kind of hinge of a utility model structural representation;

Fig. 2 is the structure cut-away view of a kind of hinge of the utility model at the state of closing the door;

Fig. 3 is the screw installation drawing of the utility model holder and long fork part when closing the door state

Fig. 4 is the work partial schematic diagram of a kind of hinge of the utility model in door opening state;

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

Fig. 6 is the long fork partial structurtes schematic diagram of a kind of hinge of the utility model.

The specific embodiment:

In the utility model, each label of Figure of description is represented respectively:

1 fixed hinge seat, 2 long fork 3 short fork 4 hinges seats

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 left side breach

19 holder brace rods

A fixed hinge seat hinge point pitch-row B hinges 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 the utility model adopts the lanar four rod mechanism design, and it is made up of members such as fixed hinge seat 1, long fork 2, short fork 3, hinges seat 4, flexible shutter door servomechanisms.Have the breach 18 that can realize that screw is installed on the long fork 2, a trip bolt of hinge is arranged on the holder of breach 18 positions, and is provided with the brace rod 19 that increases rigidity on holder.The cross section of the long fork 2 of a kind of hinge of the utility model 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, be provided with the shutter door servomechanism on the quadric chain of described door hinge, having a pivot pin in its pivot pin at least is the tubular rivet riveted joint.Four connecting rod link spot sizes of a kind of hinge of the utility model are: fixed hinge seat hinge point pitch-row A:29 ± 5mm, hinges 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, and they have certain span and keep corresponding regular collocation relation.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 is value in its corresponding span respectively, as: size A=24.2, size B=9, size C=65.2, dimension D=87 o'clock, the hinge point pitch-row A that forms four connecting rods, B, C, the size of D is that one group of data group that is mutually related is (24.2,9,65.2,87), as size A=32, size B=11, size C=66, dimension D=88 o'clock, the hinge point pitch-row A that forms four connecting rods, B, C, another group of the size of D data group that is mutually related is (32,11,66,88), those skilled in the art can be according to the A that the utility model proposes, B, C, the value criterion of D size, to A, B, C, the size of D is made suitable adjustment, make fixed hinge seat hinge point pitch-row A, hinges seat hinge point pitch-row B has structure that enough spaces satisfy long fork 2 or short fork 3 to design by required non-solid and cross sectional shape that be provided with opening, and can be implemented in design shutter door servomechanism on described the quadric chain that cuts with scissors, on position, design the breach that instrument can pass near long fork left side, make the position dimension of screw installation dimension, occupied spatial dimension is installed on refrigerator thereby reduce door hinge less than long fork left side hinge point.

A kind of hinge of the utility model is by above-mentioned design, on long fork 2, have the breach 18 that to realize that screw is installed, a trip bolt of hinge is arranged on the holder of breach 18 positions, realized that the size G of screw mounting hole is less than or equal to the size H of long fork 2 upper hinge points, thereby satisfy the function of use and the appearance and modeling designing requirement of built-in refrigerator door hinge, and 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 the utility model is to be provided with flexible shutter door servomechanism between long fork 2 and hinges seat 4, 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 hinges 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 hinges 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 hinges 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 is around 12 rotations of the spring support pin on the long fork, drive spring 6 with spring base 7 rotations, 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 is subjected to 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 driven to 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 and inhale being described in detail as follows that principle rotatablely moves and realize:

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

To, long fork 2 be

To, pressing rocking arm 8 is

To; Around 12 rotations of the spring support pin on the long fork 2, rotation direction is under roller 9 thrust of pressing rocking arm 8 for spring support ring 5, spring 6, spring base 7

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 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 hinges seats 4 door is opened.After door continues to be opened to certain angle, buckle 14 on spring base 7 sidepieces and the bottom is under the effect of roller 9, drop in thrust groove 10 on the long fork, the thrust breach 11 around spring support pin 12 rotation, 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 driven to 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, hinges 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 hinges seats 4 with the door auto-closing.

A kind of hinge of the utility model is owing to adopted above-mentioned lanar four rod mechanism and one group of hinge point sized data group design that is mutually related, by gap on long fork 2, realized reducing of door hinge installation dimension, and on holder 1, be provided with brace rod, improve the rigidity of 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, by fixed hinge seat (1), long fork (2), hinges seat (4), the interconnective lanar four rod mechanism of short fork (3) is formed, the hinge point pitch-row size that it is characterized in that described lanar four rod mechanism is made up of the one group of data that is mutually related, these group data have certain span, and forming fixing collocation relation, its span is: pitch-row (A)=29 ± 5mm of fixed hinge seat hinge point, pitch-row (B)=12 ± 5mm of hinges seat hinge point, pitch-row (C)=69 ± 5mm of short fork hinge point, the pitch-row of long fork hinge point (D)=85 ± 5mm.

2. a kind of hinge according to claim 1 is characterized in that: the size (H) that screw hole dimensions (G) is less than or equal to long fork (2) upper hinge point is installed.

3. a kind of hinge according to claim 1 is characterized in that: be provided with brace rod on the holder of hinge point position, long fork left side.

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

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

6. a kind of hinge according to claim 5, it is characterized in that: described door opens and closes servomechanism by spring support ring (5), spring (6), spring base (7), pressing rocking arm (8) is formed, described spring support ring (5) is connected in the long fork (2), spring base (7) can slide along spring support ring (5), spring is located between spring support ring (5) and the spring base (7), pressing rocking arm (8) is fixed on the hinges seat (4), when pressing rocking arm (8) rotated with hinges seat (4), pressing rocking arm (8) can push described spring by spring base (7).

7. a kind of hinge according to claim 6, it is characterized in that: the buckle (14) that is provided with projection 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) promotion spring base (7) rotated in the long fork (2), the buckle (14) of spring base (7) screwed in the thrust breach (11).

8. a kind of hinge according to claim 6, it is characterized in that: the buckle (14) that is provided with projection at the sidepiece 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 groove (10) when setting open angle being provided with on the long fork (2), when roller (9) promotion spring base (7) rotated in the long fork (2), the buckle (14) of spring base (7) screwed in the thrust groove (10).

9. a kind of hinge according to claim 1 is characterized in that: in described door hinge, having a pivot pin at least is tubular rivet.