CN2642137Y - Drawer slide construction for increased life and extended reach - Google Patents

Abstract

The utility model relates to a drawer slide rail structure with increased service life and extended length, which mainly comprises an outer slide rail, an inner slide rail and a steel ball slide piece, wherein the steel ball slide piece is clamped between the outer slide rail and the inner slide rail for guiding the sliding of the inner slide rail, so that the inner slide rail is sleeved on the inner groove of the outer slide rail to freely extend and slide; the embedded end of the outer slide rail is fixedly provided with a rolling bearing arranged between the inner grooves of the outer slide rail to be used as an auxiliary component for guiding the displacement of the inner slide rail, and the outer edge of the rolling bearing is just abutted against the upper and lower baffle extending pieces of the inner grooves of the inner slide rail to guide the displacement; therefore, when the inner slide rail is extended and displaced, the steel ball sliding piece and the rolling bearing are used for forming multi-point guide auxiliary displacement, and when the inner slide rail is fully extended, the rolling bearing can be used for increasing the resisting moment effect at the tail end of the inner slide rail so as to form a multi-point supporting moment inhibiting effect, the length of the steel ball sliding piece can be effectively shortened and adjusted, so that the service life of the whole drawer slide rail can be prolonged, and meanwhile, the effect of prolonging the extension length can be achieved.

Description

Drawer slide construction for increased life and extended reach

technical field

The utility model relates to an improvement of a drawer slide rail, in particular to a drawer slide rail structure with increased service life and extended extension length.

Background technique

As shown in Fig. 1 and Fig. 2, its view is the structure of a kind of known drawer slide rail, and it mainly comprises an outer slide rail 1', an inner slide rail 2' and a steel ball slide 3', and the inner slide rail 3' The slide rail 2' is placed on the inner groove 11' of the outer slide rail 1', and the steel ball slide piece 3' is jacketed between the outer slide rail 1' and the inner slide rail 2' for guiding the inner slide rail 2 The purpose of 'sliding is to promote the inner slide rail 2' to be sleeved on the inner groove 11' of the outer slide rail 1' to be able to stretch and slide freely.

However, the above-mentioned steel ball slider 3' is jacketed between the outer slide rail 1' and an inner slide rail 2', and when the inner slide rail 2' is fully extended, the steel ball slide piece 3' slides along with the inner slide rail 2' It stops until it collides with the front end of the outer slide rail 1', and the length L of the steel ball slider 3' has a custom-made limit specification to resist the formation of the outer slide rail 1' when the inner slide rail 2' is fully extended. Otherwise, the steel ball slider 3' cannot suppress the torque formed there, and it will cause the outward deformation of the two side extension pieces 12' on the inner groove 11' of the outer slide rail 1', and even cause serious The expansion of the extension piece 12' causes the entire set of the inner slide rail 2' and the steel ball slide piece 3' to fall off, so that the entire drawer slide rail fails.

In addition, the length L of the above-mentioned steel ball slide 3' is based on factors such as the extension length of the slide rail and the section width of the outer slide rail 1' and the inner slide rail 2' to make an effective length limit specification. The steel ball slide 3' with such a standard length Because of this, the extended length of the relative inner slide rail 2' is also limited, so the extended length of the inner slide rail 2' does not reach the required nearly full-stretched extended length, which is far from ideal.

In addition, when the inner slide rail 2' is stretched and displaced, it is completely guided by the steel ball slide 3' and resists the moment effect formed at the junction support of the outer slide rail 1'. Long-term repeated pulling and displacement use, resulting in the steel ball slide 3' It is damaged earlier than the outer slide rail 1' and the inner slide rail 2', which affects the service life of the overall drawer slide rail.

Contents of the invention

The purpose of this utility model is to overcome the deficiencies of the existing technology, based on the use requirements of the drawer slide rails, and to achieve the optimal demand for the increase of its service life and the extension of the use benefits, and for the existing drawer slide rails. The defects are improved, and a drawer slide rail structure with increased service life and extended extension length is proposed.

Another purpose of this utility model is that the setting of the rolling bearing in the provided drawer slide rail structure relatively shares the role of the guide displacement and resisting moment of the steel ball slide, so the standard length of the steel ball slide can be shortened and adjusted. Relative to the extended length of the inner slide rail, the shortened length of the steel ball slider can be increased, so that the extended length of the inner slide rail can reach a nearly fully extended extension length, so as to increase the opening area of the drawer, which is convenient for the user to pick and place.

The purpose of this utility model is achieved through the following technical solutions. The structure of the drawer slide rail with increased service life and extended extension length of the utility model is to use the outer slide rail inserting end of the drawer slide rail to fix a rolling bearing. The rolling bearing is set between the inner grooves of the outer slide rail, and is used as a guiding auxiliary component for inserting the inner slide rail into the outer slide rail, so that when the inner slide rail is stretched and displaced, not only the steel ball slide can be used as a guide , and the rolling bearing can also increase the displacement guidance assistance, so that the extension displacement of the inner slide rail has a multi-point guide displacement, and the rolling bearing is fixed on the design of the embedded end of the outer slide rail. At the embedded end of the outer slide rail, the rigid rolling bearing can resist the upper and lower retaining pieces of the inner groove of the inner slide rail, which can increase the resistance to the moment formed by the end of the inner slide rail at the junction support of the outer slide rail Therefore, the moment action at this place can be suppressed by the multi-point support of the rolling bearing and the steel ball slide, and the moment action on the steel ball slide is reduced, which can prolong its service life, and the service life of the overall drawer slide rail can also be extended.

According to the structure of the utility model, the advantage is that when the inner slide rail is stretched and displaced, the steel ball slide and the rolling bearing can form multi-point guiding auxiliary displacement, and the rolling bearing can increase the end resistance moment of the inner slide rail when fully extended, so as to form multiple The point support suppresses the action of the moment, and can effectively shorten and adjust the length of the steel ball slide, so that the service life of the overall drawer slide rail can not only be increased, but also the extension length can be extended.

Description of drawings

What Fig. 1 shows is the appearance schematic diagram of known drawer slide rail structure;

Figure 2 is a schematic side view of the corresponding state of assembly of related components of the known drawer slide rail;

What Fig. 3 shows is the appearance schematic diagram of the drawer slide rail structure of the present utility model;

Fig. 4 is a three-dimensional schematic diagram showing the corresponding state of assembly of relevant components of the drawer slide rail of the present invention;

Fig. 5 is a schematic side view of the corresponding state of assembly of related components of the drawer slide rail of the present invention.

Fig. 6 is a schematic diagram of an embodiment of the drawer slide rail of the present invention applied to a three-section drawer slide rail.

Symbol Description:

1 outer slide rail; 1' outer slide rail; 11 inner groove; 11' inner groove; 12 embedded end; 12' retaining piece; 13 rolling bearing; 131 outer edge; 2 inner slide rail; 2' inner slide; 21 internal groove; 211 upper block extension piece; 212 lower block extension piece; 3 steel ball slide piece; 3′ steel ball slide piece; 4 extended outer slide rail; 41 internal groove; 5 steel ball slide piece.

Detailed ways

Please refer to Figure 3, the structure of the drawer slide rail of the utility model mainly includes an outer slide rail 1, an inner slide rail 2 and a steel ball slide piece 3, and the inner slide rail 2 is set in the inner groove 11 of the outer slide rail 1 , and the steel ball slider 3 is jacketed between the outer slide rail 1 and the inner slide rail 2, for guiding the sliding of the inner slide rail 2, so that the inner slide rail 2 is placed in the inner groove of the outer slide rail 1 11 can freely stretch and slide.

Also, the embedded end 12 of the above-mentioned outer slide rail 1 is fixed with a rolling bearing 13, and the rolling bearing 13 is arranged between the inner grooves 11 of the outer slide rail 1, so as to be inserted into the outer slide rail 1 as the inner slide rail 2. The guide auxiliary assembly for displacement in the internal groove 11 of the inner slide rail 2, and the outer edge 131 of the rolling bearing 13 is just in contact with the upper and lower retaining pieces 211, 212 of the inner groove 21 of the inner slide rail 2 for guiding displacement (as shown in the figure 4 and Figure 5).

In this way, when the inner slide rail 2 is stretched and displaced, not only the steel ball slide 3 can be used as a guide, but also the rolling bearing 13 can also increase the displacement guidance assistance, so that the stretch displacement of the inner slide rail 2 has the characteristics of multi-point guide displacement; The rolling bearing 13 is designed to be fixed on the embedded end 12 of the outer slide rail 1. When the inner slide rail 2 is fully extended, a section of its end stagnates at the embedded end 12 of the outer slide rail 1, so that the inner slide rail 2 can be increased. The resistance of the moment formed at the junction support of the outer slide rail 1 at the end section, the moment action at this place can therefore be suppressed by the multi-point support of the rolling bearing 13 and the steel ball slide 3, and the moment action borne by the steel ball slide 3 is reduced and can be extended Its service life is also extended relative to the service life of the overall drawer slide rail.

Just compare the existing drawer slide rail structure with the same specification length steel ball slide 3 with the drawer slide rail structure of the utility model, the rolling bearing 13 of the embedded end 12 of the outer slide rail 1 of the utility model is set, and when repeatedly and continuously drawn Under the fatigue test, the drawer slide rail structure of the present utility model can improve the service life by 4 times compared with the existing drawer slide rail structure of the steel ball slide 3 with the same specification and length, which is highly progressive and has industrial application value.

Furthermore, the rolling bearing 13 at the embedded end 12 of the outer slide rail 1 of the present invention relatively shares the role of the guide displacement and resisting moment of the steel ball slide 3, so the standard length of the steel ball slide 3 can be shortened and adjusted , relative to the extended length of the inner slide rail 2, the shortened length of the steel ball slider 3 can be increased, so that the extended length of the inner slide rail 2 can reach a nearly fully extended extension length, so as to increase the opening area of the drawer, which is beneficial for the user to pick and place. Great practical value.

The above-mentioned drawer slide rail structure of the utility model with increased service life and extended extension length only illustrates the embodiment of the drawer slide rail applied to the two-section type, and it can also be applied to the three-section type drawer slide rail as shown in Figure 6. In the structure of the drawer slide rail, the above-mentioned outer slide rail 1 is used as an intermediate slide rail, and an extended outer slide rail 4 is nested on the outer edge of the inner groove 11 of the outer slide rail 1, and a steel ball slide piece 5 is used again. The jacket is placed between the outer slide rail 1 and the extended outer slide rail 4 to guide the sliding of the outer slide rail 1, so that the outer slide rail 1 can be placed on the inner groove 41 of the extended outer slide rail 4 to stretch freely Sliding also has the effect of increasing the service life and extending the extension length.

The above description is a specific description of the feasible embodiments of the present utility model, but its embodiments are not intended to limit the scope of protection of the present utility model, and any equivalent implementation or change that does not depart from the technical spirit of the present utility model, All should be included in the scope of protection claimed by the utility model.

Claims (1)

1. A drawer slide rail structure with increased service life and extended extension length, which mainly includes an outer slide rail, an inner slide rail and a steel ball slide, and the steel ball slide is jacketed on the outer slide rail and the inner slide Between the rails; it is characterized in that: a rolling bearing is fixed at the embedded end of the outer slide rail, and the rolling bearing is set between the inner grooves of the outer slide rail as an auxiliary component for guiding the displacement of the inner slide rail, and the outer edge of the rolling bearing The upper and lower blocking extension pieces that just touch the inner groove of the inner slide rail are used for guiding displacement.

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