CN202751016U

CN202751016U - Guide rail structure of drawer

Info

Publication number: CN202751016U
Application number: CN 201220320098
Authority: CN
Inventors: 李绍汉
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-07-04
Filing date: 2012-07-04
Publication date: 2013-02-27
Anticipated expiration: 2022-07-04

Abstract

The utility model provides a guide rail structure of a drawer, and belongs to a hardware product. The structure comprises a fixed rail, a middle rail and a movable rail, wherein the a first rolling rail is arranged on the horizontal edge of the bearing portion of the fixed rail, a second rolling rail is arranged on the horizontal edge of the middle rail, a ball is arranged between the first rolling rail and the second rolling rail, a rolling column is arranged between the lower surface of the horizontal edge of the movable rail and the upper surface of the horizontal edge of the middle edge, and a first bent part is arranged at lower ends of two vertical edges of the movable rail. A second bent part, a third bent part and a fourth bent part are respectively and sequentially arranged on two sagging edges connected with two ends of the horizontal edge of the middle rail from up to bottom. A second ball is arranged between the second bent part and the first bent part in an embedding mode, a third ball is arranged between each third bent part and each hypotenuse of the fixed rail in an embedded mode, and each fourth bent part bends from the rear portion of each third bent part and extends to the outer side of the sagging edges of the middle rail. The structure improves bearing capacity of the middle rail, enables operation of a guide rail to be smooth, reduces deflection of the whole drawer, and is suitable for being installed on furniture to use.

Description

Guide rail structure of drawer

Technical field

The utility model relates to hardware, particularly a kind of furniture guide rail.

Background technology

Common drawer guideway is comprised of retaining rail and movable rail, and for the bearing capacity and the smoothness that improve guide rail, manufacturer constantly improves guide rail structure.

The patent of invention (applying date 2012-04-01, application number 2012100952763) that name is called " guide rail structure of drawer " discloses a kind of drawer guideway, it comprises retaining rail and is enclosed in the movable rail of retaining rail outside, the supporting part of retaining rail has the del cross section, the cross section of movable rail roughly is П shape, between retaining rail and the movable rail retainer is arranged; The horizontal sides upper surface of retaining rail supporting part has the first raceway of depression; The horizontal sides lower surface of movable rail also has the second raceway of depression, and assembly has the first ball between the first raceway and the second raceway; There is the first fold turn of bilge movable rail two upstanding edge lower ends; Two first fold turn of bilges of movable rail respectively two triangle hypotenuses with retaining rail are relative, and assembly has the second ball respectively between every triangle hypotenuse of each first fold turn of bilge and retaining rail; The first ball and the second ball all are held frame and retrain.

This product has used the ball of lesser amt and the retaining rail of roller and triangular-section, has simple structure, saves material and the low advantage of production cost.

But in actual application, discovery has individual product when the drawer intensity of load is larger, guide rail degradation, reason are the terminal undercapacities of the first fold turn of bilge of movable rail, can the expendable deformation of appearance cause the gap between ball and the track to increase under the extruding of the second ball.

The deficiency of this product needs improvement.

Summary of the invention

The purpose of this utility model is to overcome the shortcoming of existing guide rail product, provides a kind of load capacity large, solid and reliable guide rail structure of drawer.

The utility model comprises retaining rail, mid-rail and movable rail, and the supporting part of retaining rail has the del cross section, and the cross section of mid-rail and movable rail all is П shape roughly, and the first retainer is arranged between retaining rail and the mid-rail; The second retainer is arranged between mid-rail and the movable rail;

The horizontal sides upper surface of retaining rail supporting part has the first raceway; The horizontal sides lower surface of mid-rail has the second raceway is also arranged, and is embedded with the first ball between the first raceway and the second raceway; The roller that horizontal positioned is arranged between the horizontal sides lower surface of movable rail and the upper surface of mid-rail horizontal sides; There is the first fold turn of bilge two upstanding edge lower ends of movable rail;

Two lower flaps that are connected to mid-rail horizontal sides two ends all are shaped with the second bending part, the 3rd bending part and four fold turn of bilge from top to bottom successively, the second bending part is relative with the first fold turn of bilge of movable rail, is embedded with the second ball between the second bending part and the first fold turn of bilge; The 3rd bending part is relative with the triangle hypotenuse of retaining rail, is embedded with respectively the 3rd ball between the triangle hypotenuse of each the 3rd bending part and the rail that is relatively fixed, and the second ball and roller are all retrained by the second retainer; The 3rd ball and the first ball are all retrained by the first retainer; The four fold turn of bilge since the end bending of the 3rd bending part and under the mid-rail outside of flap extend.

Guide rail structure compared with prior art, the utility model has all increased a four fold turn of bilge in two lower flaps of mid-rail lower end, about two four fold turn of bilges be equivalent to increase in the lower end of two lower flaps of mid-rail two reinforcements of arranging along the mid-rail length direction, improved significantly the rigidity of two sagging edge tails of mid-rail, the bearing capacity of rail in the increase, make the guide rail operation more smooth, take out the whole deflection of cabinet and reduce.

Suitable being installed on all furniture of the utility model used.

Description of drawings

Fig. 1 is the cross-sectional view of certain existing guide rail;

Fig. 2 is the structural representation of certain existing guide rail;

Fig. 3 is the cross-sectional view of another kind of existing guide rail;

Fig. 4 is the structural representation of another kind of existing guide rail;

Fig. 5 is the guide rail schematic cross-section of the utility model the first embodiment;

Fig. 6 is the guide rail structure schematic diagram of the first embodiment;

Fig. 7 is the outside drawing of the first embodiment;

Fig. 8 is the outside drawing after the first embodiment removes movable rail;

Fig. 9 is the outside drawing after the first embodiment removes movable rail and the second retainer;

Figure 10 is the guide rail cross-sectional view of the utility model the second embodiment.

The specific embodiment

Further specify the utility model below in conjunction with drawings and Examples.

Fig. 1 and Fig. 2 are structures of existing guide rail product, and it comprises retaining rail 81 and the movable rail 82 that is enclosed in retaining rail 81 outsides, and 81 years sections of retaining rail have the del cross section, and movable rail 82 faces roughly are П shape; The horizontal sides upper surface that retaining rail is 81 ones has the first raceway 811; The horizontal sides lower surface of movable rail 82 has that assembly has the first ball 86 between the second raceway 821, the first raceways 811 and the second raceway 821; There is first fold turn of bilge 822 81 liang of upstanding edge lower ends of movable rail; Two first fold turn of bilges 822 of movable rail 82 are not relative with two triangle hypotenuses of retaining rail 81, and assembly has the second ball 87 respectively between every triangle hypotenuse of each first fold turn of bilge 822 and retaining rail 81; The first fold turn of bilge 822 that can observe movable rail 82 from Fig. 1 is in movable rail 82 upstanding edges bottom, when movable rail 82 whole process on the retaining rail 81 is pulled out, movable rail 82 becomes cantilever, the gravity of drawer can make movable rail 82 rear ends try hard to upwarp and leave retaining rail 81, in upwarping process in order to overcome two the second ball 87(referring to Fig. 2) stop that 82 two upstanding edges of movable rail to the left and right direction strut and permanent deformation occurs.

Fig. 3 and Fig. 4 are another structures of existing guide rail product, and it is one three joint guide rail; Compared with the guide rail structure of Fig. 1, Fig. 2, Fig. 3, Fig. 4 are many one be enclosed in movable rail 82 outer the second movable rail 83 and two the 3rd balls 88 and a roller 89.Try hard to upwarp when leaving retaining rail in movable rail 82 rear ends, two the 3rd balls 88 can provide some effects that countermeasure activity rail 82 upstanding edges expand outwardly undoubtedly, but when drawer pressure is enough powerful, the curved bend joint performance of quyi of first fold turn of bilge 822 and the second ball 87 contact positions is pulled directly, destroys still can occur.

Referring to Fig. 5 to Fig. 9, the first embodiment of the present invention is one three joint drawer guideway.The first embodiment comprises retaining rail 1, mid-rail 2 and movable rail 3, and the supporting part of retaining rail 1 has the del cross section; The cross section of mid-rail 2 and movable rail 3 all is П shape roughly; Retaining rail 1, mid-rail 2 and movable rail 3 are the same with existing product all to be that steel plate punched with the 1mm left and right thickness forms.

The first retainer 4 is arranged between retaining rail 1 and the mid-rail 2; The second retainer 5 is arranged between mid-rail 2 and the movable rail 3; The horizontal sides upper surface of retaining rail 1 supporting part has the first raceway 101; The horizontal sides lower surface of mid-rail 2 has also to have between corresponding the second raceway 201, the first raceways 101 and the second raceway 201 and is embedded with the first ball 6; The roller 7 that horizontal positioned is arranged between the upper surface of the horizontal sides lower surface of movable rail 3 and mid-rail 2 horizontal sides; There is first fold turn of bilge 301 two upstanding edge lower ends of movable rail 3.

Two lower flaps that are connected to mid-rail 2 horizontal sides two ends all are shaped with the second bending part 202, the 3rd bending part 203 and four fold turn of bilge 204 from top to bottom successively; The second bending part 202 is relative with the first fold turn of bilge 301 of movable rail 3, is embedded with the second ball 8 between the second bending part 202 and the first fold turn of bilge 101; The 3rd bending part 203 is relative with the triangle hypotenuse of retaining rail 1, is embedded with respectively the 3rd ball 9, the second balls 8 and roller 7 and is all retrained by the second retainer 5 between every triangle hypotenuse of each the 3rd bending part 203 and retaining rail 1; The 3rd ball 9 and the first ball 6 are all retrained by the first retainer 4, and the 3rd ball 9 and two the first balls 6 lay respectively on three summits of an isosceles triangle in the imagination.

Main points of the present utility model are the 3rd bending part and then terminally arranges a four fold turn of bilge more, and namely steel plate is since the end bending of the 3rd bending part and the outside extension of flap under the mid-rail.Four fold turn of bilge 204 extends the long fin of 4mm since the end approximate horizontal ground of the 3rd bending part 203 in the present embodiment to the outside of 2 times flaps of mid-rail.Newly-installed four fold turn of bilge is equivalent to increase by two reinforcements of arranging along the mid-rail length direction in the lower end of two lower flaps of mid-rail, has improved significantly the rigidity of two sagging edge tails of mid-rail.

Referring to Figure 10, the difference of the second embodiment of the present utility model and the first embodiment is that two four fold turn of bilges 204 all are two-fold bendings, and namely extend in the outside of flap under the mid-rail at the steel plate back of being close to the 3rd bending part since the terminal point of the 3rd bending part; So same formation reinforcement.

In various embodiments, in order to make each ball tight with contacting of each bending part, reduce pressure and improve the smoothness that guide rail slides, every triangle hypotenuse and first fold turn of bilge, the second bending part and the 3rd bending part of retaining rail supporting part all have arcuate groove, and arcuate groove has identical radius curve with the ball that is inlaid in this position.

Claims

1. a guide rail structure of drawer comprises retaining rail (1), mid-rail (2) and movable rail (3), the carrying of retaining rail (1)

Section has the del cross section, and the cross section of mid-rail (2) and movable rail (3) all is П shape roughly, between retaining rail (1) and the mid-rail (2) the first retainer (4) is arranged; Between mid-rail (2) and the movable rail (3) the second retainer (5) is arranged;

The horizontal sides upper surface of retaining rail (1) supporting part has the first raceway (101); The horizontal sides lower surface of mid-rail (2) has corresponding the second raceway (201), is embedded with the first ball (6) between the first raceway (101) and the second raceway (201); The roller (7) that horizontal positioned is arranged between the upper surface of the horizontal sides lower surface of movable rail (3) and mid-rail (2) horizontal sides; There is first fold turn of bilge (301) two upstanding edge lower ends of movable rail (3);

It is characterized in that: two lower flaps that are connected to mid-rail (2) horizontal sides two ends all are shaped with the second bending part (202), the 3rd bending part (203) and four fold turn of bilge (204) from top to bottom successively; The second bending part (202) is relative with the first fold turn of bilge (301) of movable rail (3), is embedded with the second ball (8) between the second bending part (202) and the first fold turn of bilge (301); The 3rd bending part (203) is relative with the triangle hypotenuse of retaining rail (1), be embedded with the 3rd ball (9) between the triangle hypotenuse of each the 3rd bending part (203) and the rail that is relatively fixed (1), the second ball (8) and described roller (7) are all retrained by the second retainer (5); The 3rd ball (9) and described the first ball (6) are all retrained by described the first retainer (4); Four fold turn of bilge (204) extends since the end bending of the 3rd bending part (203) and to the outside of the lower flap of mid-rail (2).

2. according to guide rail structure of drawer claimed in claim 1, it is characterized in that: two four fold turn of bilges (204) are two-fold bendings.

3. according to guide rail structure of drawer claimed in claim 1, it is characterized in that: every triangle hypotenuse and first fold turn of bilge (301), the second bending part (202) and the 3rd bending part (203) of described retaining rail (1) supporting part all have arcuate groove, and arcuate groove has identical radius curve with the ball that is inlaid in the position, place.