A rear locking structure for a compact space

Abstract

The present invention relates to a rear locking structure for a compact space, which includes an inner rail assembly, a middle rail assembly, and an outer rail assembly that are slidably connected from the inside to the outside. A retaining piece is installed through the middle rail assembly in the inner and outer directions. A latch that slides in the width direction is installed on the middle rail assembly behind the retaining piece. A first locking opening and a second locking opening are respectively provided at both ends of the outer rail assembly; A stepped unlocking structure extends from the inner rail assembly; By means of the retaining piece, the one-way sliding of the inner rail assembly relative to the middle rail assembly is blocked in front of the stepped unlocking structure. At this time, the latch is lifted and slides out of the second locking opening. When the latch slides out along with the inner rail assembly, it falls and is clamped in the first locking opening of the outer rail assembly, that is, the sliding of the middle rail assembly relative to the outer rail assembly is locked, thereby leaving enough space to completely slide the inner rail assembly out of the middle rail assembly and remove the server along with the inner rail assembly; effectively solves the problem that the server cannot be smoothly removed and maintained in a limited space, has good practicability, and is convenient and reliable to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of slide rail applications, in particular to a rear locking structure for a compact space. Background Art

[0002] Servers are usually installed in cabinets, and matching slide rails are provided in the cabinets to facilitate operations such as exporting and importing the servers relative to the cabinets for maintenance. In the prior art, due to limited space in the computer room, when the server slides out of the cabinet completely along the slide rail, there is no enough space to unlock and remove the server from the slide rail, resulting in great inconvenience in server maintenance and greatly affecting the operation of the operators. Summary of the Invention

[0003] The applicant of the present invention aims at the above-mentioned disadvantages in the existing production technology and provides a rear locking structure for a compact space with a reasonable structure, so as to smoothly remove the server in a limited space, effectively facilitating the smooth progress of maintenance operations, being convenient, reliable and having good practicability.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A rear locking structure for a compact space includes an inner rail assembly, a middle rail assembly and an outer rail assembly that are slidably connected to each other from the inside to the outside and adjacent to each other. A retaining piece is installed through the middle rail assembly inside and outside. A locking buckle that slides along the width direction is installed on the middle rail assembly behind the retaining piece. Locking openings I and II that cooperate with the locking buckle are respectively provided at both ends of the outer rail assembly; A stepped unlocking structure extends from the inner rail assembly towards the middle rail assembly; When the inner rail assembly slides into the middle rail assembly, the unidirectional relative sliding is blocked in front of the stepped unlocking structure by the retaining piece. At this time, the locking buckle is lifted and slides out of the locking opening II of the outer rail assembly. When the inner rail assembly slides out, the locking buckle drops and is clamped in the locking opening I of the outer rail assembly.

[0006] As a further improvement of the above technical solution:

[0007] The locking opening I is a U-shaped protrusion extending from the inner wall surface of the outer rail assembly towards the middle rail assembly. After the locking buckle is clamped into the U-shaped protrusion, a force is applied to the inner rail assembly to make it slide out relative to the middle rail assembly, and the middle rail assembly is locked and stopped relative to the outer rail assembly through the cooperation of the locking buckle and the U-shaped protrusion.

[0008] The inner bottom surface of the U-shaped protrusion is a straight plane along the length direction of the outer rail assembly. A bulge also extends on the inner side surface of the outer rail assembly in front of the U-shaped protrusion. When the lock moves with the middle rail assembly relative to the U-shaped protrusion to the tail end, the bulge acts on the rear end of the retaining piece, thereby unlocking the sliding lock between the front end of the retaining piece and the inner rail assembly. The inner rail assembly further slides relative to the middle rail assembly until the lock moves to the rear section of the stepped unlocking structure, and the stepped unlocking structure unlocks the lock from the U-shaped protrusion, so that the inner rail assembly, the middle rail assembly and the outer rail assembly reach a relatively slid-in closed state.

[0009] A buckle with a right-angled triangle structure extends by folding towards the inner rail assembly at the front end of the retaining piece, and the hypotenuse of the buckle is at the front end; a spring pressing part extends in the reverse direction of the outer rail assembly at the rear end of the retaining piece.

[0010] The stepped unlocking structure is an L-shaped convex bulge, the front end of its horizontal arm is set as an inclined plane structure, and a downward notch is arranged behind the inclined plane structure.

[0011] A bayonet for clamping the retaining piece is formed on the inner rail assembly in front of the stepped unlocking structure.

[0012] A sliding groove for the lock to slide up and down is formed on the middle rail assembly, and a reset torsion spring is also installed between the lock and the middle rail assembly.

[0013] The second lock port is an L-shaped protrusion extending towards the middle rail assembly on the inner wall surface of the outer rail assembly, and a concave is arranged on the L-shaped protrusion for clamping the lock.

[0014] The beneficial effects of the present invention are as follows:

[0015] The structure of the present invention is compact, reasonable and easy to operate. In a machine room with limited space, first slide the three sections of rails out relatively, and the lock of the middle rail assembly is clamped in cooperation with the second lock port of the outer rail assembly; then apply force to the inner rail assembly to make it slide relative to the middle rail assembly until the degree of freedom of the relative slide-in is locked by the retaining piece. At this time, the front section of the stepped unlocking structure jacks up the lock so that it slides out of the second lock port of the outer rail assembly; the inner rail assembly and the middle rail assembly slide in relative to the outer rail assembly together until when the lock moves to the first lock port of the outer rail assembly, the inner rail assembly slides outwards relative to the middle rail assembly so that the lock drops into the first lock port, realizing the sliding lock between the outer rail assembly and the middle rail assembly, and sliding the inner rail assembly out completely relative to the middle rail assembly. The sliding lock between the middle rail assembly and the outer rail assembly leaves enough operating space at the rear, and the server can slide out with the inner rail assembly and be removed smoothly, thus effectively solving the problem that the server cannot be removed and maintained smoothly in a limited space, facilitating the smooth progress of the maintenance operation, having good practicability, greatly improving the operation convenience, and being simple and reliable;

[0016] The present invention also has the following advantages:

[0017] After the flap locks the degree of freedom for the inner rail assembly to slide relative to the middle rail assembly, the inner rail assembly and the middle rail assembly slide together relative to the outer rail assembly. The lock buckle moves along the straight plane of the U-shaped protrusion relative to the outer rail assembly until the bulge touches and applies force to the rear end of the flap, triggering the front end of the flap to deflect towards the middle rail assembly, so that the buckle at the front end of the flap disengages from the inner rail assembly, that is, the degree of freedom for the inner rail assembly to slide relative to the middle rail assembly is unlocked; then apply force to the inner rail assembly to make it slide relative to the middle rail assembly, so that the lock buckle moves from the inclined surface structure to the notch relative to the L-shaped convex hull, realizing the complete locking of the sliding between the inner rail assembly and the middle rail assembly;

[0018] The front end of the flap is clamped with the bayonet of the inner rail assembly through the buckle of the right triangle structure, and the hypotenuse of the right triangle is located at the front end, so as to realize the locking of the sliding direction of the inner rail assembly relative to the middle rail assembly, and through the setting of the hypotenuse, the inner rail assembly can slide out relative to the middle rail assembly, that is, the locking in a single direction of relative sliding is realized. Brief Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the present invention.

[0020] Figure 2 is Figure 1 an exploded view of

[0021] Figure 3 is Figure 2 a partial enlarged view of part A in

[0022] Figure 4 is Figure 2 a partial enlarged view of part B in

[0023] Figure 5 It is a schematic diagram of the state where the middle rail assembly and the inner rail assembly of the present invention slide together relative to the outer rail assembly after being locked in a single direction.

[0024] Figure 6 It is a schematic diagram of the state when the single-direction lock of the inner rail assembly and the middle rail assembly of the present invention is unlocked (the middle rail assembly and the inner rail assembly are omitted).

[0025] Wherein: 1. Outer rail assembly; 2. Middle rail assembly; 3. Inner rail assembly; 4. Flap; 5. Lock buckle; 6. Torsion spring; 11. Lock port one; 12. Bulge; 13. Lock port two; 21. Slide groove; 31. Bayonet; 32. Step unlocking structure; 41. Buckle; 321. Inclined surface structure; 322. Notch. Detailed Description of the Invention

[0026] The following will describe the specific embodiments of the present invention with reference to the accompanying drawings.

[0027] As Figure 1 and Figure 2As shown in the figure, a rear locking structure for a compact space in this embodiment includes an inner rail assembly 3, a middle rail assembly 2, and an outer rail assembly 1 that are slidably connected to each other from the inside to the outside and adjacent to each other. A retaining piece 4 is installed through the middle rail assembly 2 inside and outside. A latch 5 that slides along the width direction is installed on the middle rail assembly 2 behind the retaining piece 4. At both ends of the outer rail assembly 1, a first locking opening 11 and a second locking opening 13 that cooperate with the latch 5 are respectively provided; A stepped unlocking structure 32 extends from the inner rail assembly 3 towards the middle rail assembly 2; When the inner rail assembly 3 slides into the middle rail assembly 2, the relative sliding in one direction is blocked by the retaining piece 4 in front of the stepped unlocking structure 32. At this time, the latch 5 is lifted and slides out of the second locking opening 13 of the outer rail assembly 1. When the latch 5 slides out with the inner rail assembly 3, it drops and is clamped in the first locking opening 11 of the outer rail assembly 1.

[0028] In a machine room with limited space, first slide the three sections of the rail out relative to each other, and the latch 5 of the middle rail assembly 2 cooperates with and is clamped in the second locking opening 13 of the outer rail assembly 1; Then apply force to the inner rail assembly 3 to make it slide into the middle rail assembly 2 until the relative sliding degree is locked and blocked in one direction by the retaining piece 4. At this time, the front section of the stepped unlocking structure 32 lifts the latch 5 to make it slide out of the second locking opening 13 of the outer rail assembly 1; The inner rail assembly 3 and the middle rail assembly 2 slide into the outer rail assembly 1 together. When the latch 5 moves to the first locking opening 11 of the outer rail assembly 1, the inner rail assembly 3 slides outwards relative to the middle rail assembly 2, causing the latch 5 to drop into the first locking opening 11, realizing the sliding lock between the outer rail assembly 1 and the middle rail assembly 2, and sliding the inner rail assembly 3 out completely relative to the middle rail assembly 2. The sliding lock between the middle rail assembly 2 and the outer rail assembly 1 leaves enough operating space at the back, and the server can slide out with the inner rail assembly 3 and be removed smoothly, thus effectively solving the problem that the server cannot be removed and maintained smoothly in a limited space.

[0029] As Figure 3 shown, the first locking opening 11 is a U-shaped protrusion extending from the inner wall surface of the outer rail assembly 1 towards the middle rail assembly 2. After the latch 5 is clamped into the U-shaped protrusion, apply force to the inner rail assembly 3 to make it slide out of the middle rail assembly 2. Then, the middle rail assembly 2 slides and locks relative to the outer rail assembly 1 through the cooperation of the latch 5 and the U-shaped protrusion.

[0030] The inner bottom surface of the U-shaped protrusion is a straight plane along the length direction of the outer rail assembly 1. A bulge 12 also extends from the inner side surface of the outer rail assembly 1 in front of the U-shaped protrusion; When the latch 5 moves to the end relative to the U-shaped protrusion with the middle rail assembly 2, the bulge 12 acts on the rear end of the retaining piece 4, thereby unlocking the sliding lock between the front end of the retaining piece 4 and the inner rail assembly 3. The inner rail assembly 3 further slides into the middle rail assembly 2 until the latch 5 moves to the rear section of the stepped unlocking structure 32, and the stepped unlocking structure 32 unlocks the latch 5 from the U-shaped protrusion, so that the inner rail assembly 3, the middle rail assembly 2, and the outer rail assembly 1 reach a closed state of relative sliding in.

[0031] After the retaining piece 4 locks the degree of freedom for the inner rail assembly 3 to slide relative to the middle rail assembly 2, the inner rail assembly 3 and the middle rail assembly 2 slide together relative to the outer rail assembly 1. The lock catch 5 moves along the straight plane of the U-shaped protrusion relative to the outer rail assembly 1 until the bulge 12 touches and applies a force to the rear end of the retaining piece 4, triggering the front end of the retaining piece 4 to deflect towards the middle rail assembly 2. As a result, the buckle 41 at the front end of the retaining piece 4 disengages from the inner rail assembly 3, that is, the degree of freedom for the inner rail assembly 3 to slide relative to the middle rail assembly 2 is unlocked.

[0032] The front end of the retaining piece 4 is folded and extended towards the inner rail assembly 3 to form a buckle 41 with a right-angled triangle structure. The hypotenuse of the buckle 41 is located at the front end; the rear end of the retaining piece 4 is extended in the reverse direction of the outer rail assembly 1 to form a spring pressing part. The front end of the retaining piece 4 is clamped with the bayonet 31 of the inner rail assembly 3 through the buckle 41 with a right-angled triangle structure, and the hypotenuse of the right-angled triangle is located at the front end, so as to lock the sliding direction of the inner rail assembly 3 relative to the middle rail assembly 2. And through the setting of the hypotenuse, the inner rail assembly 3 can slide out relative to the middle rail assembly 2, that is, the locking of the relative sliding in a single direction is realized.

[0033] As Figure 4 shown, the stepped unlocking structure 32 is an L-shaped convex hull. The front end of its horizontal arm is set as an inclined surface structure 321, and a downward notch 322 is provided behind the inclined surface structure 321; after unlocking the locking of the degree of freedom for the inner rail assembly 3 to slide relative to the middle rail assembly 2 through the bulge 12, then apply a force to the inner rail assembly 3 to make it slide relative to the middle rail assembly 2, so that the lock catch 5 moves from the inclined surface structure 321 to the notch 322 relative to the L-shaped convex hull, realizing the complete locking of the sliding between the inner rail assembly 3 and the middle rail assembly 2.

[0034] A bayonet 31 for clamping with the retaining piece 4 is provided on the inner rail assembly 3 in front of the stepped unlocking structure 32.

[0035] A sliding groove 21 for the lock catch 5 to slide up and down is provided on the middle rail assembly 2. A torsion spring 6 for resetting is also installed between the lock catch 5 and the middle rail assembly 2. The lock catch 5 is pushed up by the inclined surface structure 321 at the front end of the L-shaped convex hull, and the torsion spring 6 is deformed. When the inclined surface structure 321 of the L-shaped convex hull leaves the lock catch 5, the lock catch 5 moves downward and resets under the action of the torsion spring 6.

[0036] The lock port II 13 is an L-shaped protrusion extending towards the middle rail assembly 2 on the inner wall surface of the outer rail assembly 1, and a concave

[0037] The working principle of the present invention is:

[0038] Slide out the three - section tracks relative to each other. The lock catch 5 of the middle - rail assembly 2 cooperates and is clamped with the second lock opening 13 of the outer - rail assembly 1. Apply force to the inner - rail assembly 3 to slide it relative to the middle - rail assembly 2 until the buckle 41 of the retaining plate 4 is clamped into the bayonet 31. The sliding freedom of the inner - rail assembly 3 relative to the middle - rail assembly 2 is locked by the buckle 41. At this time, the inclined - plane structure 321 at the front end of the L - shaped convex hull of the stepped unlocking structure 32 on the inner - rail assembly 3 applies force to the lock catch 5, causing the lock catch 5 to move upward along the sliding groove 21, that is, the lock catch 5 is lifted, and the torsion spring 6 deforms.

[0039] Apply force to the inner - rail assembly 3 and the middle - rail assembly 2 to slide them together relative to the outer - rail assembly 1 until the lock catch 5 of the middle - rail assembly 2 moves to the U - shaped protrusion of the first lock opening 11 of the outer - rail assembly 1. At this time, the lock catch 5 is lifted by the inclined - plane structure 321 of the L - shaped convex hull of the inner - rail assembly 3, and the lock catch 5 is exactly above the rear end of the U - shaped protrusion, as Figure 5 shown;

[0040] Apply force to the inner - rail assembly 3 to slide it outwards relative to the middle - rail assembly 2. The L - shaped convex hull disengages from the lock catch 5, causing the lock catch 5 to move downward under the action of the torsion spring 6 and fall into the U - shaped protrusion of the outer - rail assembly 1, that is, the outer - rail assembly 1 and the middle - rail assembly 2 are slidably locked.

[0041] Continue to apply force to the inner - rail assembly 3 to slide it completely out relative to the middle - rail assembly 2, so that the server slides out smoothly with the inner - rail assembly 3.

[0042] After the server maintenance is completed, slide it back into the middle - rail assembly 2 together with the inner - rail assembly 3. When the bayonet 31 of the inner - rail assembly 3 is clamped with the buckle 41 at the front end of the retaining plate 4 on the middle - rail assembly 2, that is, when the retaining plate 4 re - locks the sliding freedom of the inner - rail assembly 3 relative to the middle - rail assembly 2, apply force to the inner - rail assembly 3 and the middle - rail assembly 2 to move them together relative to the outer - rail assembly 1 in the sliding - in direction. At this time, the lock catch 5 on the middle - rail assembly 2 moves relative to the outer - rail assembly 1 along the straight plane of the U - shaped protrusion of the first lock opening 11 until the bulge 12 of the outer - rail assembly 1 touches and presses the elastic - pressing part at the rear end of the retaining plate 4 on the middle - rail assembly 2, as Figure 6 shown, triggering the front - end buckle 41 of the retaining plate 4 to deflect towards the middle - rail assembly 2, so that the buckle 41 disengages from the bayonet 31 of the inner - rail assembly 3, that is, the sliding - in freedom of the inner - rail assembly 3 relative to the middle - rail assembly 2 is unlocked; then apply force to the inner - rail assembly 3 to slide it into the middle - rail assembly 2, causing the L - shaped convex hull of the stepped unlocking structure 32 of the lock catch 5 on the middle - rail assembly 2 relative to the inner - rail assembly 3 to move from the inclined - plane structure 321 to the notch 322, realizing the complete locking of the sliding of the inner - rail assembly 3 relative to the middle - rail assembly 2.

[0043] The operation of the present invention is simple, the structure is ingenious and reasonable, the use is convenient and reliable, solving the problem that the server cannot be smoothly removed and maintained in a limited space, effectively facilitating the smooth progress of the maintenance operation, greatly improving the operation convenience, and having good practicability.

[0044] The above description is an explanation of the present invention, not a limitation thereof. For the scope defined by the present invention, refer to the claims. Any form of modification may be made within the scope of protection of the present invention.

Claims

1. A rear locking structure for a compact space, comprising an inner rail assembly (3), a middle rail assembly (2) and an outer rail assembly (1) which are slidably connected to each other from the inside to the outside and adjacent to each other, characterized in that: The inner and outer through middle rail assembly (2) is installed with a retaining piece (4). A latch (5) that slides along the width direction is installed on the middle rail assembly (2) behind the retaining piece (4). At both ends of the outer rail assembly (1), a first locking opening (11) and a second locking opening (13) that cooperate with the latch (5) are respectively provided; A stepped unlocking structure (32) extends towards the middle rail assembly (2) on the inner rail assembly (3); When the inner rail assembly (3) slides into the middle rail assembly (2), the relative sliding in one direction is blocked by the retaining piece (4) in front of the stepped unlocking structure (32). At this time, the latch (5) is lifted and slides out of the second locking opening (13) of the outer rail assembly (1). When the inner rail assembly (3) slides out, the latch (5) drops and is clamped in the first locking opening (11) of the outer rail assembly (1).

2. The rear locking structure for a compact space according to claim 1, characterized in that: The first locking opening (11) is a U-shaped protrusion extending towards the middle rail assembly (2) on the inner wall surface of the outer rail assembly (1). After the latch (5) is clamped into the U-shaped protrusion, a force is applied to the inner rail assembly (3) to slide it out relative to the middle rail assembly (2), and the middle rail assembly (2) is then locked and slid relative to the outer rail assembly (1) through the cooperation of the latch (5) and the U-shaped protrusion.

3. The rear locking structure for a compact space according to claim 2, characterized in that: The inner bottom surface of the U-shaped protrusion is a straight plane along the length direction of the outer rail assembly (1). A bulge (12) also extends on the inner side surface of the outer rail assembly (1) in front of the U-shaped protrusion; When the latch (5) moves to the end relative to the U-shaped protrusion along with the middle rail assembly (2), the bulge (12) acts on the rear end of the retaining piece (4), thereby unlocking the sliding lock between the front end of the retaining piece (4) and the inner rail assembly (3). The inner rail assembly (3) further slides into the middle rail assembly (2) until the latch (5) moves to the rear section of the stepped unlocking structure (32), and the stepped unlocking structure (32) unlocks the latch (5) from the U-shaped protrusion, so that the inner rail assembly (3), the middle rail assembly (2), and the outer rail assembly (1) reach a closed state of relative sliding in.

4. The rear locking structure for a compact space according to claim 3, wherein: The front end of the retaining piece (4) is folded and extended towards the inner rail assembly (3) with a buckle (41) in the shape of a right triangle structure. The hypotenuse of the buckle (41) is at the front end; The rear end of the retaining piece (4) extends towards the reverse direction of the outer rail assembly (1) with a spring pressing part.

5. The rear locking structure of a compact space according to claim 1, characterized in that: The stepped unlocking structure (32) is an L-shaped convex protrusion. The front end of its horizontal arm is set as an inclined surface structure (321), and a downward notch (322) is provided behind the inclined surface structure (321).

6. The rear locking structure of a compact space according to claim 1, characterized in that: A bayonet (31) for clamping the retaining piece (4) is opened on the inner rail assembly (3) in front of the stepped unlocking structure (32).

7. The rear locking structure of a compact space according to claim 1, characterized in that: A sliding groove (21) for the latch (5) to slide up and down is opened on the middle rail assembly (2). A torsion spring (6) for resetting is also installed between the latch (5) and the middle rail assembly (2).

8. The rear locking structure for a compact space according to claim 1, characterized in that: The second locking opening (13) is an L-shaped protrusion extending towards the middle rail assembly (2) on the inner wall surface of the outer rail assembly (1). A concave for clamping the latch (5) is provided on the L-shaped protrusion.

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