Slide rail mechanism

1. A slide rail mechanism comprising:

a first bracket configured to be mounted to a cabinet;

a second bracket configured to be mounted to the cabinet, the first bracket being slidably coupled to the second bracket;

a mounting rail mountable to the second bracket; wherein:

the mounting rail defines first fixing holes;

the second bracket defines second fixing holes;

the first bracket comprises a first fixing portion and first bent portions;

the second bracket comprises a second fixing portion and second bent portions;

each of the second bent portions defines a gap;

the first bent portions are respectively received in the gaps;

the second bent portions limit a sliding direction of the first bracket relative to the second bracket;

the first bracket is retractable or extendable-relative to the second bracket to adjust a combined length of the first bracket and the second bracket such that the first bracket is fixed to the cabinet by the first fixing portion, and the second bracket is fixed to the cabinet by the second fixing portion; and

when the mounting rail is mounted to the second bracket, the second fixing holes correspond to the first fixing holes, and the mounting rail and the second bracket are secured together by fasteners passing through the second fixing holes and the first fixing holes.

2. The slide rail mechanism of claim 1 , wherein:

the first bracket comprises a first body; and

the first bent portions extend toward each other from the first body.

3. The slide rail mechanism of claim 2 , wherein:

the first bracket comprises a resilient piece located on the first body;

one end of the resilient piece extends from the first body, and a second end of the resilient piece is a free end;

a side of the second end forms a stamped protrusion, such that the stamped protrusion protrudes perpendicularly from a plane of the resilient piece on one side of the resilient piece and is recessed on an opposite side of the resilient piece;

the second bracket defines a limiting hole;

the stamped protrusion is configured to protrude through the limiting hole to prevent the first bracket from extending further relative to the second bracket when the first bracket is fully extended relative to the second bracket.

4. The slide rail mechanism of claim 3 , wherein:

the first bracket comprises a first reinforcing portion protruding from a surface of the first body.

5. The slide rail mechanism of claim 1 , wherein:

the second bracket comprises a second body;

the second bent portions extend toward each other from the second body, and the gap is defined between each of the second bent portions and the second body.

6. The slide rail mechanism of claim 5 , wherein:

the second body comprises a blocking portion configured to prevent the first bracket from sliding further when the first bracket is fully retracted in the second bracket.

7. The slide rail mechanism of claim 6 , wherein:

the mounting rail and the first bracket are respectively mounted to opposite surfaces of the second bracket.

8. A slide rail mechanism comprising:

a first bracket configured to be mounted to a cabinet;

a second bracket configured to be mounted to the cabinet, the first bracket being slidably coupled to the second bracket;

a mounting rail mountable to the second bracket; wherein:

the mounting rail defines first fixing holes;

the second bracket defines second fixing holes:

the second bracket comprises a second body and two second bent portions respectively extending toward each other from two longitudinal sides of the second body;

a gap is defined between each of the two second bent portions and the second body;

the first bracket is slidably received in the gaps;

the second bent portions limit a sliding direction of the first bracket relative to the second bracket;

the first bracket is retractable or extendable-relative to the second bracket to adjust a combined length of the first bracket and the second bracket in the cabinet; and

when the mounting rail is mounted to the second bracket, the second fixing holes correspond to the first fixing holes, and the mounting rail and the second bracket are secured together by fasteners passing through the second fixing holes and the first fixing holes.

9. The slide rail mechanism of claim 8 , wherein:

the first bracket comprises a first body and two first bent portions;

the two first bent portions respectively extend toward each other from two longitudinal sides of the first body and connect to a surface of the first body; and

the two first bent portions are respectively received in the gaps defined by the two second bent portions.

10. The slide rail mechanism of claim 9 , wherein:

the first bracket comprises a resilient piece located on the first body;

one end of the resilient piece extends from the first body, and a second end of the resilient piece is a free end;

a side of the second end forms a stamped protrusion, such that the stamped protrusion protrudes perpendicularly from a plane of the resilient piece on one side of the resilient piece and is recessed on an opposite side of the resilient piece;

the second bracket defines a limiting hole;

the stamped protrusion is configured to protrude through the limiting hole to prevent the first bracket from extending further relative to the second bracket when the first bracket is fully extended relative to the second bracket.

11. The slide rail mechanism of claim 10 , wherein:

the second body comprises a blocking portion configured to prevent the first bracket from sliding further when the first bracket is fully retracted in the second bracket.

12. The slide rail mechanism of claim 11 , wherein:

the mounting rail and the first bracket are respectively mounted to opposite surfaces of the second bracket; and

the mounting rail is configured to be mounted to the cabinet.