CN200994582Y

CN200994582Y - Guide rail

Info

Publication number: CN200994582Y
Application number: CNU2006201418788U
Authority: CN
Inventors: 茅忠群
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Hangzhou auspicious moral design incorporated company
Priority date: 2006-12-31
Filing date: 2006-12-31
Publication date: 2007-12-26
Anticipated expiration: 2016-12-31

Abstract

The utility model relates to a guide rail, which is characterized in that the guide rail is provided with a lower rail, an upper rail, and at least a layer of middle rail. The middle of the middle rail is a shrinking section, the upper end and the lower end thereof expand to be a middle rail upper layer and a middle rail lower layer in respect of the cross section; the middle rail lower layer is matched with the lower rail or the middle rail upper layer of another middle rail, a ball support is arranged between the middle rail lower layer and the lower rail or the middle rail upper layer of another middle rail, balls are restricted on the ball support, an upper matching surface, a lower matching surface, a left matching surface, and a right matching surface which are mutually opposite are arranged between the middle rail lower layer and the lower rail or the middle rail upper layer of another middle rail in the upper direction, the lower direction, the left direction, and the right direction, and the balls are arranged between each matching surface; the middle rail upper layer is matched with the upper rail or the middle rail lower layer of another middle rail, a ball support is arranged between the middle rail upper layer and the upper rail or the middle rail lower layer of another middle rail, balls are restricted on the ball support, an upper matching surface, a lower matching surface, a left matching surface, and a right matching surface which are mutually opposite are arranged between the middle rail upper layer and the upper rail or the middle rail lower layer of another middle rail in the upper direction, the lower direction, the left direction, and the right direction, and the balls are arranged between each matching surface.

Description

A kind of guide rail

Technical field

The utility model relates to the spare and accessory parts of home-use article or equipment, specifically is a kind of guide rail that is applied on the drawing structure of kitchen cabinet, household electronic products etc.

Background technology

Numerous products such as kitchen cabinet, desk, household electronic products are provided with the parts (following general designation drawer) of drawer or drawer-like, and drawer can pull out and advance with respect to the product main body.For convenience the drawer on these products is pulled out and is advanced, and between the both sides of drawer and corresponding fixation wall guide rail is installed usually.The structure and the form of existing guide rail are more, as Chinese patent CN01242280.0 disclosed " ball-type drawer guideway ", CN200520062058.5 disclosed " fast assembling-disassembling guide rail ", CN98247704.X disclosed " a kind of drawer guideway roller of rolling bearing type ", CN03267246.2 disclosed " noiseless guide rail ", CN03267248.9 disclosed " guide rail of band noise-reducing structure ", CN200520075663.6 disclosed " the unsteady jockey of cash box drawer slide guide rail " etc., wherein representative structure is: guide rail mainly is made up of interior rail and outer rail (also has guide rail to have interior rail, middle rail and outer rail), wherein interior rail is connected with the sidewall of drawer usually, outer rail then is connected with the wall box of placing drawer usually, on having with the below up between interior rail and the outer rail, following two cooperate picture, on, be provided with ball between following two mating surfaces, and ball is retrained by the ball support between rail in being arranged on and the outer rail.The wild effect that these guide rail ubiquities cause because of factors such as double swerves, and the intensity of guide rail and resistance to torsion also have much room for improvement.In addition, thus the guide rail of these structures also exists foreign matters such as dust to enter the deficiency that the guide rail rolling surface influences the smooth and easy operation of guide rail easily.

In addition, Chinese patent CN00240423.0 disclosed " guide rail ", it is made up of last travelling carriage, lower slider frame and sliding seat, sliding seat is I-shaped, between last travelling carriage, lower slider frame and sliding seat, advance ball is installed, produce relative slip between sliding seat and last travelling carriage, the lower slider frame, advance ball is located by ball rack, and ball rack is arranged between sliding seat and last travelling carriage, the lower slider frame.This guide rail is making moderate progress aspect intensity and the resistance to torsion, but still has deficiency, and in stability and prevent that foreign matter from entering and improvement is not arranged aspect the guide rail rolling surface, and its material requirements to the sliding seat of centre is higher, causes cost to rise.

Summary of the invention

Technical problem underlying to be solved in the utility model provides the guide rail of a kind of good stability, intensity and resistance to torsion excellence.

Other technologies problem to be solved in the utility model provides and a kind ofly can prevent effectively that foreign matter from entering the guide rail of guide rail rolling surface, so that guide rail has good smooth and easy runnability all the time.In addition, also be convenient to increase according to actual needs the guide rail number of plies to increase the flexible distance of guide rail.

For solving the problems of the technologies described above, the utility model adopts following technical proposals:

This guide rail is characterized in that it has following rail, goes up rail and rail in one deck at least, described in rail from its cross section, middle for tightening portion, top and bottom are expanded and are formed middle rail upper strata, middle rail lower floor; In rail lower floor and following rail or in another middle rail upper strata of rail cooperate, be provided with the ball support between the two, constraint has ball on the ball support, and have four the cooperation pictures in opposite directions in upper and lower, left and right at the upper and lower, left and right four direction between the two, be equipped with described ball between each cooperation picture; In rail upper strata and last rail or in another middle rail lower floor of rail cooperate, be provided with the ball support between the two, constraint has ball on the ball support, and have four mating surfaces in opposite directions in upper and lower, left and right at the upper and lower, left and right four direction between the two, be equipped with described ball between each mating surface.

As for the fit system of middle rail and following rail, last rail, and the structure of every middle rail and size consistent aspect whether, multiple choices can be arranged.In having down with guide rail rail and last in two middle rails of rail be example: can be down in the middle rail lower floor of rail be enclosed within down outside the rail, also can be that down rail is enclosed within down outside the middle rail lower floor of middle rail, in like manner, go up middle rail and down middle rail and upward middle rail and last rail multiple choices also can be arranged, but therefrom the uniform specification of rail and anti-foreign matter enter the rolling mating surface, preferred fit system described later, so that all openings all down, both helped unified in track gauge lattice and be convenient to roll middle rail with sheet material, and help effectively anti-sealing, foreign matters such as dust enter the rolling mating surface: the middle rail lower floor of rail is sleeved on the described rail down that is mated or in another outside middle rail upper strata of rail in described, described in the middle rail upper strata of rail be installed on then that be mated described goes up rail or in another in middle rail lower floor of rail.

The specification of rails was identical during all were described, and the contour dimension of the middle rail lower floor of rail is consistent with the described contour dimension that goes up rail in described, and wherein the contour dimension on rail upper strata is then consistent with the described contour dimension of rail of descending.

The cross sectional shape of the middle rail upper strata of rail and middle rail lower floor is square in described.

Rail is rolled by sheet material and forms in described, the middle rail upper strata of rail and middle rail lower floor are hollow-core construction in described, and the opening part of sheet material is arranged in the bottom surface of the rail lower floor of described rail, and this opening just can hold the feet of described rail bottom down and the portion of tightening of described middle rail is passed.Described rail down and last rail roll by sheet material and form, and the sheet material interface that rolls described rail down is in forming feet below the rail down, roll the described opening part of going up the sheet material of rail and then be positioned at the described bottom surface of going up rail, and this opening just can hold described in the portion of tightening of rail pass.Employing sheet material rolls, and can effectively reduce manufacturing cost.

The number of rail is one to three in described.

Described down rail, go up rail and in the position of corresponding described ball of rail form groove longitudinally, and the cross sectional shape of groove and described ball adapt.

The utility model has following beneficial effect:

1, because down rail and middle rail and between the mating surface of rail and last rail about, left and right sides four direction all exists the front of ball to retrain, can effectively prevent the radially disturbance of guide rail, the constraint of above-below direction has strengthened the guide rail weight capacity, the constraint better controlled of left and right directions the wild effect that causes because of factors such as double swerves, and the dimensions of each layer guide rail is basic identical or it is very little to change, and has therefore improved rigidity, resistance to torsion, intensity and the stability of guide rail greatly; 2, in preferred version, all openings all down, and opening is positioned at the guide rail centre position, thereby has extraordinary dustproof, waterproof effect, can effectively stop foreign matter to enter rolling surface and influences the smooth and easy of guide rail and slide; 3, because of in rail dimensions (cross section) constant (such as the preferred version situation) or constant substantially, help being arranged to rail structure in the multilayer, both be convenient to increase the flexible distance of whole guide rail, and can guarantee substantially under the more situation of the long guide rail number of plies in other words of flexible distance, not lower the rigidity of guide rail; 4, lower floor's guide rail installed surface does not have any obstruction, the convenient installation; 5, in the preferred version, rail, ball support and ball can adopt identical specification in all, help improving the versatility of accessory, to reduce cost; 6, descend rail, last rail and middle rail all can adopt sheet material to roll, help reducing manufacturing cost.

Description of drawings

Fig. 1 does not draw back the stereogram of state for the utility model embodiment one;

Fig. 2 draws back the stereogram of state for the utility model embodiment one;

Fig. 3 executes the cross section structure schematic diagram of example one for the utility model;

Fig. 4 is the cross section structure schematic diagram of following rail, middle rail, last rail suit state among the embodiment one;

Fig. 5 is the cross section structure schematic diagram of following rail among the embodiment one;

Fig. 6 is the cross section structure schematic diagram of middle rail among the embodiment one;

Fig. 7 is a cross section structure schematic diagram of going up rail among the embodiment one;

Fig. 8 executes the cross section structure schematic diagram of example two for the utility model.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Embodiment one

As Fig. 1～illustrated in Figure 7, be a preferred embodiment of the present utility model.As Fig. 1～shown in Figure 7, the present embodiment guide rail, it has following rail 1, goes up rail 2 and a middle rail 3.Middle rail 3 is from its cross section, middle for tightening portion 31, top and bottom expand form tetragonal in rail upper strata 32, middle rail lower floor 33, and the contour dimension of middle rail lower floor 33 is consistent with the contour dimension of last rail 2, the contour dimension on the middle rail upper strata 32 then contour dimension with following rail 1 is consistent.Middle rail lower floor 33 is sleeved on outside the following rail 1 that is mated, be provided with ball support 4 between the two, constraint has ball 5 on the ball support 4, and have four mating surfaces in opposite directions in upper and lower, left and right at the upper and lower, left and right four direction between the two, be equipped with described ball 5 between each mating surface; Middle rail upper strata 32 is installed in the last rail 2 that is mated, also be provided with ball support 4 between the two, constraint has ball 5 on the ball support 4, and have four mating surfaces in opposite directions in upper and lower, left and right at the upper and lower, left and right four direction between the two, be equipped with described ball 5 between each mating surface.

Rail 3 is rolled by sheet material and forms in described, and the middle rail upper strata 32 of middle rail 3 and middle rail lower floor 33 are hollow-core construction, and the opening part of sheet material is arranged in the bottom surface of rail lower floor 33, and the feet 11 that this opening just can hold described time rail 1 bottom passes.

Described rail 1 down and last rail 2 also roll by sheet material and form, and the sheet material interface that rolls described rail 1 down forms described feet 11 in following rail 1 below, roll the described opening part of going up the sheet material of rail 2 and then be positioned at the picture of going to the bottom of rail 2, and this opening just can hold in the portion that tightens 31 of rail 3 pass.

In addition, described down rail 1, go up rail 2 and in the position of corresponding described ball 5 of rail 3 form groove 6 longitudinally, and the cross sectional shape of groove 6 and described ball 5 adapt.

Embodiment two

As schematically shown in Figure 8, be a preferred embodiment of the present utility model.As shown in Figure 8, and referring to Fig. 1～Fig. 7, the present embodiment guide rail, the difference of itself and embodiment one be its have down in rail 7 and last in rail 8 two-layer two middle rails in other words, and the specification of two middle rails, structure are identical.The middle rail lower floor 73 of rail 7 is sleeved on outside the following rail 1 that is mated in wherein following, down in 72 on the middle rail upper strata of rail 7 be installed in the middle rail lower floor 83 of rail 8 in the going up of being mated, the middle rail upper strata 82 of rail 8 then is installed in the last rail 2 that is mated in going up.

Claims

1, a kind of guide rail is characterized in that it has following rail, goes up rail and rail in one deck at least, described in rail from its cross section, middle for tightening portion, top and bottom are expanded and are formed middle rail upper strata, middle rail lower floor; In rail lower floor and following rail or in another middle rail upper strata of rail cooperate, be provided with the ball support between the two, constraint has ball on the ball support, and have four mating surfaces in opposite directions in upper and lower, left and right at the upper and lower, left and right four direction between the two, be equipped with described ball between each mating surface; In rail upper strata and last rail or in another middle rail lower floor of rail cooperate, be provided with the ball support between the two, constraint has ball on the ball support, and have four mating surfaces in opposite directions in upper and lower, left and right at the upper and lower, left and right four direction between the two, be equipped with described ball between each mating surface.

2, guide rail according to claim 1, it is characterized in that described in the middle rail lower floor of rail be sleeved on the described rail down that is mated or in another outside middle rail upper strata of rail, described in the middle rail upper strata of rail be installed on then that be mated described goes up rail or in another in middle rail lower floor of rail.

3, guide rail according to claim 2, the specification that it is characterized in that all described middle rails is identical, and the contour dimension of the middle rail lower floor of rail is consistent with the described contour dimension that goes up rail in described, and wherein then the contour dimension with described following rail is consistent for the contour dimension on rail upper strata.

4, guide rail according to claim 3, it is characterized in that described in the middle rail upper strata of rail and the cross sectional shape of middle rail lower floor be square.

5, according to claim 2 or 3 or 4 described guide rails, it is characterized in that described in rail roll by sheet material and form, the middle rail upper strata of rail and middle rail lower floor are hollow-core construction in described, and the opening part of sheet material is arranged in the bottom surface of the rail lower floor of described rail, and this opening just can hold the feet of described rail bottom down and the portion of tightening of described middle rail is passed.

6, according to claim 2 or 3 or 4 described guide rails, it is characterized in that described down rail and last rail roll by sheet material forms, and the sheet material interface that rolls described rail down is in forming feet below the rail down, roll the described opening part of going up the sheet material of rail and then be positioned at the described bottom surface of going up rail, and this opening just can hold described in the portion of tightening of rail pass.

7,, it is characterized in that the number of described middle rail is one to three according to claim 2 or 3 or 4 described guide rails.

8, according to claim 2 or 3 or 4 described guide rails, it is characterized in that described down rail, go up rail and in the position of corresponding described ball of rail form groove longitudinally, and the cross sectional shape of groove and described ball adapt.