CN201127426Y

CN201127426Y - Square guiding rail

Info

Publication number: CN201127426Y
Application number: CNU2007200602622U
Authority: CN
Inventors: 李绍汉
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-28
Filing date: 2007-11-28
Publication date: 2008-10-08
Anticipated expiration: 2017-11-28

Abstract

The utility model provides a square lead rail which belongs to a hardware product. The square lead rail includes a rail A and a rail B, the rail A surrounds the rail B. The square lead rail is characterized in that the section of the rail A is a square, an opening is arranged on one side of the square, two inner angles of the rail A near the opening are provided with cambered grooves; the section of the rail B is of a T-shape, the vertical beam of the T shape extends out of the opening of the rail A, the two side waist parts of the T-shaped section of the rail B are provided with the cambered grooves, the top of the crossbeam of the T-shaped section of the rail B is provided with two cambered grooves; ball bearings are arranged between the two inner angles of the rail A near the opening and the two side waist parts of the rail B; a ball bearing is arranged between the top of the crossbeam of the T-shaped section of the rail B and the inner wall of the rail A; the two cambered grooves on the top of the crossbeam of the T-shaped section of the rail B and the two rows of ball bearings between the inner walls of the rail A are staggered along the longitudinal direction of the rail B. The lead rail is provided with four ball bearings as the support between the two layers of rails, the lead rail is caused to be firmer and more reliable; in addition, the ball bearings roll along the cambered grooves, the fitness is close, the clearance is small, the handle is well, and the lead rail is suitable for being arranged on all furniture.

Description

Square rail

Technical field

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

Background technology

The general line slideway of installing in the drawer of furniture belongs to two-wheel or two pearl structure, though structure is simpler, poor stability rocks during the drawer motion, and load capacity is little, is not suitable for being necessary to improve on the high-grade furniture.

The utility model content

The purpose of this utility model is to provide a kind of compact conformation, smooth operation along the square rail sliding, that load capacity is big.

The utility model comprises first rail and second rail, and the first rail surrounds the second rail, it is characterized in that first rail cross section is square, and on a square limit opening is arranged, and the cross section of second rail is "T"-shaped, and "T"-shaped longeron stretches into the opening of first rail; The first rail has the arc ditch near two interior angles of opening, and there are two arc ditches another inboard, limit that the first rail is relative with opening; The both sides waist in " T " cross section of second rail has the arc ditch, and two arc ditches are arranged at the crossbeam top in " T " cross section of second rail; The first rail has ball near between two interior angles of opening and the second rail both sides waist ball being arranged between the crossbeam top in " T " cross section of second rail and the first rail inwall; Two the arc ditches in crossbeam top that are in " T " cross section of second rail are interspersed with the length direction of the row of two between first rail inwall ball along the second rail.

As a combination of the present utility model, the second rail is double T shape conjoined structure, and the first rail has two, and two first rails surround the shape of the T up and down track of second rail respectively, between each first rail and the second rail ball are arranged.

As another combination of the present utility model, fill up the rail and third rail in addition in the periphery of first rail, the pad rail is fixed in first rail and opening relative edge's the outside, and the cross section of third rail is rectangular, third rail surrounds first rail and pad rail, and third rail has second opening on the limit corresponding with the opening of first rail; There is the arc ditch third rail, two inboards, and there is the arc ditch in two outsides of first rail, between the third rail inwall and the pad rail ball are arranged, and between the third rail inwall and the first trackside wall ball are arranged, and between the third rail inwall and the pad rail change gear are arranged.

Compared with traditional guide rail, the utility model has 4 row balls (or change gear) as the support between the two-layer track, makes guide rail firm reliable; And ball rolls along the arc ditch, cooperates accurately, and the gap is little, and feel is fine, and suitable being installed on all furniture used.

Description of drawings

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

Fig. 1 is the cutaway view of embodiment 1;

Fig. 2 is another cutaway view of embodiment 1;

Fig. 3 is the cutaway view of embodiment 2;

Fig. 4 is the cutaway view of embodiment 3.

The specific embodiment

Referring to Fig. 1 and Fig. 2, first rail 1 and second rail 3 are arranged among the embodiment 1, first rail 1 surrounds second rail 3.First rail 1 is formed by the steel plate bending, and its cross section roughly is square, and on limit, square bottom opening 2 is arranged, second rail 3 also is to form with the steel plate bending, its cross section roughly is the opening 2 that "T"-shaped, "T"-shaped longeron 4 extends into first rail 1, and longeron 4 can be used for being connected with the drawer cupboard; First rail 1 suppresses arc ditch 5 near two interior angles of opening 2; The both sides waist in " T " cross section of second rail 3 is made arc ditch 5, and two arc ditches 5 are also arranged at the crossbeam top in " T " cross section of second rail 3; First rail 1 is equipped with ball 6 near between two interior angles of opening 2 and the second rail 3 both sides waists two balls 6 being arranged between the crossbeam top in " T " cross section of second rail 3 and first rail 1 inwall; Two the arc ditches 5 in crossbeam top that are in " T " cross section of second rail 3 are interspersed with the length direction of the row of two between first rail 1 inwall ball 6 along second rail 3.

Be among Fig. 1 second rail 3 crossbeam top the right device a ball 6, it is positioned at same cross section with two balls of the both sides waist of second rail 3; And be among Fig. 2 second rail 3 crossbeam top left device a ball 6, it is positioned at same cross section with two other ball of the both sides waist of second rail 3.Two the arc ditches 5 in crossbeam top that are in " T " cross section of second rail 3 are to rely on the ball retainer (not shown) of given shape to keep with two between first rail 1 inwall row ball 6 along the arrangement mode that the length direction of second rail 3 is interspersed.

Because all there is the ball support every nook and cranny and does not have visible gap between first rail and the second rail, makes that the cooperation of first rail and second rail is very accurate, moves very steady.

Referring to Fig. 3, on shape, the second rail of embodiment 2 is double T shape conjoined structure, and this second rail is to be formed by same steel plate bending; Embodiment 2 has two first rails, and two first rails surround the shape of the T up and down track of second rail respectively, and 6 balls are arranged on same cross section between the inboard of each first rail and the second rail.Embodiment 2 can make three joint guide rails, and wherein the second rail is free rail, two first rails can be separately fixed on the drawer cupboard and drawer on.

Referring to Fig. 4, as another distortion combination of embodiment 1, the top of first rail 1 also has a pad rail 7, and pad rail 7 is welded on the outer surface on that relative limit of first rail 1 and opening 2, the end top is shaped on arc ditch 5 about pad rail 7, and the end below is shaped on flat face 8 about pad rail 7; The periphery of first rail 1 also has the cross section of third rail, 9, the third rails 9 roughly rectangular, and third rail 9 surrounds first rails 1 and pad rail 7, the third rails 9 has second opening 10 on the limit corresponding with the opening 2 of first rail 1; There is arc ditch 59 liang of inboards of third rail, and corresponding with it, two outsides of first rail 1 also have arc ditch 5, the third rails 9 inwalls that ball 6 and change gear 11 are housed; On same cross section, there are two balls 6 to contact simultaneously with the arc ditch 5 of third rail 9 and the arc ditch 5 of pad rail 7, there are two balls 6 to contact simultaneously, have two change gears 11 to contact simultaneously with the inboard on that limit that second opening 10 is arranged of third rail 9 and the flat face 8 of pad rail 7 with the arc ditch 5 of third rail, 9 inwall arc ditches 5 and first rail 1 sidewall.

In each embodiment, all balls and change gear all rely on ball retainer or change gear retainer (not shown) to constrain on the tram.

Claims

1. square rail, comprise first rail (1) and second rail (3), first rail (1) surrounds second rail (3), it is characterized in that: first rail (1) cross section is rectangular, on a square limit, opening (2) is arranged, the cross section of second rail (3) is "T"-shaped, and "T"-shaped longeron (4) stretches out the opening (2) of first rail (1); First rail (1) has arc ditch (5) near two interior angles of opening (2), and there are two arc ditches (5) another inboard, limit that first rail (1) is relative with opening (2); The both sides waist in " T " cross section of second rail (3) has arc ditch (5), and two arc ditches (5) are arranged at the crossbeam top in " T " cross section of second rail (3); First rail (1) has ball (6) near between two interior angles of opening (2) and second rail (3) the both sides waist ball (6) being arranged between the crossbeam top in " T " cross section of second rail (3) and first rail (1) inwall; Two the arc ditches in crossbeam top (5) that are in " T " cross section of second rail (3) are interspersed with the length direction of the row ball of two between first rail (1) inwall (6) along second rail (3).

2. according to the described square rail of claim 1, it is characterized in that: described second rail (3) is double T shape conjoined structure, described first rail (1) has two, and two first rails (1) surround the shape of the T up and down track of second rail (3) respectively, between each first rail (1) and the second rail (3) ball (6) are arranged.

3. according to the described square rail of claim 1, it is characterized in that: fill up rail (7) and third rail (9) in addition in the periphery of described first rail (1), pad rail (7) is fixed in first rail (1) and opening (2) relative edge's the outside, the cross section of third rail (9) is rectangular, third rail (9) surrounds first rail (1) and pad rail (7), and third rail (9) has second opening (10) on the limit corresponding with the opening (2) of first rail (1); There is arc ditch (5) third rail (9) two inboards, there is arc ditch (5) in two outsides of first rail (1), between third rail (9) inwall and the pad rail (7) ball (6) is arranged, between third rail (9) inwall and first rail (1) sidewall ball (6) is arranged, between third rail (9) inwall and the pad rail (7) change gear (11) is arranged.