CN2428019Y - Improved structure of drawer slide rail - Google Patents

Abstract

An improved structure of drawer slide rail comprises an outer slide rail, a stop block, an inner slide rail and a steel ball slide plate, wherein two positioning blocks of the stop block respectively extend upwards from the outer edge to form a clamping piece connected with the front end surfaces of two stop posts, the two clamping pieces are provided with arc convex cards for leading into preset clamping grooves on the side surfaces of the steel ball slide plate so as to improve the clamping and positioning effects of the steel ball slide plate, the two clamping pieces have proper thickness, and gaps are respectively formed between the outer side surfaces of the two clamping pieces and the two sides of the adjacent slide rail, so that the abrasion can be reduced, and the service life is relatively prolonged.

Description

Improved structure of drawer slide rail

The utility model relates to an improved structure of a drawer slide rail, which is improved aiming at the clamping or disengaging structure of a steel ball sheet and a stop block.

The U.S. No. 5 of the same creator, the 577th, No. 821 patent case as shown in Figure 1～2, it is to be called practical, but there are still unfinished parts to be improved, in order to be perfect, explain as follows now: Because The convex clips 531, 541 on both sides of the stop block 5 that block the inward extension of the 53, 54 respectively hold the outermost two ends 921, 922 of the second steel ball sliding piece 92 at an appropriate distance. When the drawer 10 is put back, even if The front end 81 of the inner slide rail 8 is not kept completely parallel to the middle slide rail 7, and the second steel ball slide 92 will not be pushed forward first, so as to prevent the drawer 10 from being unable to be pushed back to position or even damage the second steel ball slide. In addition, the protrusions 531, 541 of the retaining posts 53, 54 of the aforementioned stop block 5 are easily worn after being repeatedly used in contact with the outermost two ends 921, 922 of the second steel ball slide 92. However, the thickness of each protruding card 531, 541 becomes thinner, so that it cannot be in close contact with the outermost two sides 921, 922 of the second steel ball sliding piece 92 or even loses the contact and holding function, thus losing the aforementioned function.

In addition, U.S. No. 5,722, as shown in Fig. 3 to Fig. 4, although the bottom inner edges of the two positioning blocks 55, 56 have inclined parts 551, 561 and slightly have slots 5511, 5611 and have Appropriate elasticity can reduce wear, but its clamping and positioning effect is still insufficient, and because the horizontal slots 5511, 5611 are facing the two sides 923, 924 of the outermost bottom end surface of the second steel ball slide 92, therefore, after a period of use Occasionally, the bottom surfaces 9231, 9241 of the two sides 923, 924 of the bottom end surface of the second steel ball sliding piece 92 will be stuck into the slots 5511, 5611 due to improper application of force afterwards, and thus cannot be disengaged smoothly, thereby affecting smooth operation.

Therefore, the purpose of this utility model is to provide an improved structure of the drawer slide rail, so as to improve its clamping and positioning effect and service life.

The utility model is realized in the following way: an improved structure of a drawer slide rail, including an outer slide rail, a middle slide rail, an inner slide rail, and a first steel ball slide piece and a jacket between the outer slide rail and the middle slide rail. The second steel ball slider is jacketed between the middle slide rail and the inner slide rail. The aforementioned outer slide rail is locked at a predetermined position on the inner side wall of the drawer space of the cabinet body, while the inner slide rail is locked with the side wall of the drawer;

in:

The middle slide rail is provided with a stop block at its outer open end, and the stop block is protruded with protrusions. In addition, there are stop posts on both sides above the stop block, and the stop block set on the middle slide rail There are also two positioning blocks;

The inner slide rail is preset with a clamping piece integrally formed by plastic injection, and the two positioning blocks of the stop block are arranged on the inner edge of the bottom thereof, and the two positioning blocks are respectively extended with inclined parts;

Its characteristics are:

The two positioning blocks of the stop block respectively extend upwards from their outer edges to form a holding piece connecting the two blocked front faces. The card slots are arranged to hold and position each other, and the two holding pieces have an appropriate thickness, and the outer surfaces of the two holding pieces respectively form gaps with the two side walls of the middle sliding rail. The stop block can also be directly fixed on the surface of the outer slide rail, omitting the middle slide rail and the first steel ball slide piece, and directly locked on the predetermined position on the inner side wall of the drawer space of the cabinet by the outer slide rail, and the two sides of the stop block The arc-shaped convex card of the positioning block is set at the clamping part at the bottom, and is clamped and positioned with the preset card slots on both sides of the bottom surface of the steel ball slide, and each clamping piece has a curved section, and on both sides The proper distance portion has two slots of proper thickness.

The utility model has the following positive and progressive effects:

1. The two positioning blocks of the stop block respectively extend upwards from their outer edges to form a holding piece connecting the front ends of the two blocking columns. In addition to increasing the holding area with the two sides of the steel ball sliding piece, it is further formed by The preset circular arc convex cards of the two card holding pieces can be introduced into the side preset card slots of the steel ball sliding piece, so as to improve the clamping and positioning effect thereof.

2. The two clamping pieces of the stop block have appropriate thickness, so that the outer surface forms a gap with the two side walls of the adjacent slide rail, so that the clamping piece has better elasticity to reduce clamping The contact friction reduces wear and relatively improves the service life, and cooperates with the front end of the clamping piece to form an inclined surface, which can be more smoothly contacted and clamped with the two sides of the steel ball slide plate or easily and smoothly disengaged from the aforementioned clamping and positioning state.

Below in conjunction with accompanying drawing, the utility model is described in detail:

FIG. 1 is a perspective view of an embodiment of US Patent No. 5,577,821.

FIG. 2 is a partially exploded perspective view of US Patent No. 5,577,821.

Figure 3 is an enlarged view of the stopper in U.S. Patent No. 5,722,750.

Fig. 4 is an exploded perspective view of U.S. Patent No. 5,722,750 (the stop block has been assembled).

Fig. 5 is a three-dimensional enlarged view of the stop block in the embodiment of the utility model.

Fig. 6 is a top plan view of the stop block in the embodiment of the present invention.

Fig. 7 is a sectional view of the stop block in the embodiment of the present invention.

Fig. 8 is a three-dimensional exploded view of some components of the embodiment of the present invention.

Fig. 9 is a three-dimensional exploded view of some components of the embodiment of the present invention (the stop block has been assembled).

Fig. 10 is a partially assembled cross-sectional view of the embodiment of the present invention.

Fig. 11 is a three-dimensional enlarged view of a stop block in another embodiment of the present invention.

Fig. 12 is another perspective enlarged view of the stop block in another embodiment of the present invention.

Fig. 13A is a schematic cross-sectional view of a stop block in another embodiment of the present invention.

Fig. 13B is another schematic cross-sectional view of the stopping block in another embodiment of the present invention.

Fig. 14 is an exploded perspective view of some components of another embodiment of the present invention.

Fig. 15 is a partially assembled sectional view of another embodiment of the utility model.

As shown in Figures 5 to 10, an improved structure of a drawer slide rail of the present invention includes at least an outer slide rail 6, a middle slide rail 7, an inner slide rail 8, and a jacket between the outer slide rail 6 and the middle slide rail. 7 between the first steel ball slide 91 and the second steel ball slide 92 jacketed between the middle slide rail 7 and the inner slide rail 8, the aforementioned outer slide rail 6 is locked on the inside wall of the drawer space of the cabinet ( Figure not shown) predetermined position, and the inner slide rail 8 is locked with the side wall of the drawer (not shown), so that the drawer can be pulled outwards and pushed inwards, and the drawer can also be locked together with its lock The solid inner slide rail 8 is directly disassembled and disengaged to take out.

in:

The middle slide rail 7 is provided with a stop block 5 at its outer open end, and the stop block 5 is provided with a protruding block 51 for engaging or disengaging the clamping piece 4 of the inner slide rail 8. In addition, the stop block The two sides above the top of the 5 have retaining columns 53, 54 in addition, which can prevent the second steel ball sliding piece 92 from breaking away, and the stop block 5 provided by the middle slide rail 7 is additionally provided with two positioning blocks 55, 56 (referring to Fig. 6 ) , when the drawer is taken out, the inner slide rail 8 can be linked with the second steel ball slide piece 92 to push back against the stopper 5 and gently clamp the second steel ball slide piece 92 for an appropriate distance. When the drawer is put back, even the inner slide rail The front end 81 of 8 is not kept completely parallel to the middle slide rail 7, and the second steel ball slide 92 will not be pushed forward first, so as to avoid the situation that the drawer cannot be pushed back to position or even damage the second steel ball slide 92. ;

The inner slide rail 8 is preset with a clamping piece 4 integrally formed by plastic injection, which can be used for the protrusion 51 of the stop block 5 fixed with the middle slide rail 7 to be engaged or disengaged, and the stop block 5 Two positioning blocks 55, 56 are arranged on the inner edge of its bottom, and the two positioning blocks 55, 56 are respectively extended with inclined parts 551, 561, so that the drawer is taken out and the second steel ball sliding piece 92 is pushed backward by the inner slide rail 8. When relying on the stop block 5, the inclined parts 551, 561 of the two positioning blocks 55, 56 of the stop block 5 can guide the two sides 923, 924 of the bottom end surface of the second steel ball sliding piece 92;

Its characteristics are:

The two positioning blocks 55, 56 of the stop block 5 respectively extend upwards from their outer edges to form a holding piece 552, 562 connecting the front end surfaces 531, 541 of the two blocking columns 53, 54. In addition to the clamping area of the two side surfaces 925, 926 of the second steel ball sliding piece 92, the predetermined circular arc convex cards 5521, 5621 of the two clamping pieces 552, 562 can be introduced into the predetermined card slots of the side surfaces 925, 926 of the second steel ball sliding piece 92 9251, 9261, and improve its clamping and positioning effect, and the two clamping pieces 552, 562 have an appropriate thickness, so that a gap is formed between the outer surfaces 5522, 5622 and the two side walls 71 of the middle slide rail 7 ( Referring to FIG. 10 ), making the clamping pieces 552, 562 have better elasticity can reduce the frictional force of the clamping contact and reduce wear, and relatively improve the service life, and cooperate with the front ends of the clamping pieces 552, 562 to form an inclined surface 5523 , 5623 (referring to Fig. 5, Fig. 6), can contact and hold with the two side surfaces 925, 926 of the second steel ball sliding piece 92 more smoothly or easily and smoothly break away from the aforementioned holding and positioning state.

Please also refer to Fig. 11 to Fig. 15, which is another embodiment of the present utility model. Its main components and structural features are the same as those of the previous embodiment. The positioning position of the slide piece 92 is slightly different, and the middle slide rail 7 and the first steel ball slide piece 91 of the previous embodiment are omitted, and the stop block 5 is directly arranged on the outer slide rail 6, as follows:

The drawer slide rail at least includes an outer slide rail 6, a stop block 5, an inner slide rail 8, and a steel ball slide piece 92. The aforementioned outer slide rail 6 is locked at a predetermined position on the inner side wall (not shown) of the drawer space of the cabinet, The inner slide rail 8 is locked with the side wall of the drawer (not shown in the figure), so that the drawer can be pulled outwards and pushed inward to close, and the drawer can also be directly disassembled together with its locked inner slide rail 8 take out

in:

The outer slide rail 6 is provided with a stop block 5 at its outer open end, and the stop block 5 is protruded with a protrusion 51 for the clamping or disengagement of the locking piece 4 of the inner slide rail 8. In addition, the stop block The top two sides of 5 have stop post 53,54 in addition, can prevent that steel ball sliding plate 92 breaks away from, and the stop block 5 that this outer slide rail 6 is provided is provided with two positioning blocks 55,56 (referring to Fig. 11,12 in addition ), when the drawer is taken out, the steel ball slide piece 92 can be linked by the inner slide rail 8 to push back against the stop block 5, and the steel ball slide piece 92 can be gently held for an appropriate distance. When the drawer is put back, even the front end of the inner slide rail 8 81 is not kept completely parallel to the outer slide rail 6, and the steel ball slide 92 will not be pushed forward first, so as to avoid the situation that the drawer cannot be pushed back to position or even damage the steel ball slide 92;

The inner slide rail 8 is preset with a clamping piece 4 integrally formed by plastic injection, and the protrusion 51 of the stop block 5 fixed with the outer slide rail 6 is in a state of being locked or disengaged, and the stop block 5 Two positioning blocks 55, 56 are arranged on the inner edge of its bottom, and the two positioning blocks 55, 56 are respectively extended with inclined parts 551, 561, so that the drawer is taken out and the inner slide rail 8 is linked with the steel ball sliding piece 92 to lean against the drawer backward. When the stop block 5 is used, the inclined parts 551, 561 of the two positioning blocks 55, 56 of the stop block 5 can guide the two sides 923, 924 of the bottom end surface of the steel ball slide 92;

Its characteristics are:

The two positioning blocks 55, 56 of the stop block 5 respectively extend upwards from their outer edges to form a holding piece 550, 560 connecting the front end faces 531, 541 of the two blocking columns 53, 54. In addition to the clamping area of the two side surfaces 925, 926 of the positioning block, the clamping parts 550, 560 are further formed by the bottoms of the two positioning blocks 55, 56, and each is preset with an arc convex card 5501, 5601, which can be used for introducing steel balls to slide The clamping slots 9231, 9241 on both sides 923, 924 of the bottom end surface of the sheet 92 are preset to improve its holding and positioning effect, and each holding sheet 551, 561 is a curved section (referring to Fig. 13A ), and on both sides There are two slits 553, 563 with appropriate thickness on the side at an appropriate distance, so that the clamping parts 551, 561 have better elasticity, which can reduce the friction force of the clamping contact and reduce wear, and relatively improve the service life. The inclined parts 551 , 561 of the positioning blocks 55 , 56 can be more smoothly contacted and locked with the two sides 923 , 924 of the bottom end surface of the steel ball slide 92 or easily and smoothly disengaged from the aforementioned locked and positioned state.

Claims (2)

1, a kind of improvement structure of drawer sliding rail, include external slide rail, middle level slide rail, interior slide rail and chuck at first steel ball slide plate between external slide rail and the middle level slide rail and chuck the second steel ball slide plate between middle level slide rail and interior slide rail, the locking of aforementioned external slide rail is at the drawer space madial wall predetermined position of cabinet, interior slide rail then with the sidewall locking of drawer;

Wherein:

This middle level slide rail, its outer openings end is provided with a stop block, and this stop block convexes with projection, and the both sides, top of this stop block have bumping post in addition in addition, and the set stop block of this middle level slide rail is provided with two locating pieces in addition;

Should in slide rail, be preset with the clip of plastic cement one injection molding, and two locating pieces of this stop block are located at its bottom inside edge, and this two locating piece and respectively extended rake;

Be characterized in:

Two locating pieces of this stop block are extended upward the retaining sheet of the front end face that is a linking two bumping posts respectively by its outer rim, this two retaining sheet is preset with the circular arc convex clip, hold the location mutually with the default draw-in groove in the side of the second steel ball slide plate, and this two retaining sheet has suitable thickness, and its lateral surface forms the gap respectively and between the two side of middle level slide rail.

2, the improvement structure of drawer sliding rail according to claim 1, it is characterized in that: this stop block directly is installed in external slide rail and omits the middle level slide rail and the first steel ball slide plate, and directly by the drawer space madial wall predetermined position of external slide rail locking at cabinet, and the circular arc convex clip of two locating pieces of this stop block is located at the holding section of its bottom, the draw-in groove default with steel ball slide plate bottom face both sides holds the location mutually, and each retaining sheet is curved arc shape section, and suitably has the line of rabbet joint of two suitable thickness apart from the position in its both sides.

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