A slide rail locking structure

Abstract

The present invention discloses a slide rail locking structure, including a driving cable, a locking motor, a lock shell, and a lock cover. A driving connecting rod, a connecting rod reset spring, a locking head, and a lock head push rod are arranged inside the lock shell. A lever is arranged on the driving connecting rod, the lever abuts against the locking head, and the lock head push rod also abuts against the locking head through the extrusion of the push rod spring. The locking head is arranged in a track groove on the lock shell. The locking head rolls back and forth in the track groove through the extrusion of the lever and the lock head push rod. When the locking head rolls to the outer end of the lock shell, the locking head abuts against the slide rail. When the locking head rolls to the inner end of the lock shell, the locking head is separated from the slide rail. One end of the driving cable is connected to the locking motor, and the other end is connected to the driving connecting rod. The locking structure of the present invention has a self-locking function. The greater the external force, the greater the locking force and the tighter the lock. The locking structure of the same slide rail increases the risk of failure as the external force increases. The locking function can be realized at any position in the stroke without being restricted by any gear position.

Description

Technical Field

[0001] The invention relates to a locking structure, in particular to an electric slide rail locking structure. Background Art

[0002] Electric slides are used in many life scenarios. When the slides are sliding, they generally need to be locked so that they can be stopped at any time. The current locking structure is not very firm, and some cannot achieve stepless locking, which affects the locking effect. Obviously, this cannot meet the user's comfort and safety needs. Summary of the invention

[0003] In view of the above problems of the prior art, the present invention provides a slide rail locking structure, which can conveniently and safely lock the slide rail during the sliding stroke.

[0004] A slide rail locking structure comprises a driving pull wire, a locking motor, a lock shell and a lock cover. A driving connecting rod, a connecting rod reset spring, a locking head and a lock head push rod are arranged inside the lock shell. A lever is arranged on the driving connecting rod. The lever abuts against the locking head. The lock head push rod also abuts against the locking head through the extrusion of the push rod spring. The locking head is arranged in a track groove on the lock shell. The locking head rolls back and forth in the track groove through the extrusion of the lever and the lock head push rod. When the locking head rolls to the outer end of the lock shell, the locking head abuts against the slide rail. When the locking head rolls to the inner end of the lock shell, the locking head disengages from the slide rail. One end of the driving pull wire is connected to the locking motor, and the other end is connected to the driving connecting rod.

[0005] At least two locking heads are provided, and each locking head corresponds to a shifting rod and a locking head push rod.

[0006] One end of the driving connecting rod is fixed with the shifting rod, and the other end is hinged with the shifting rod.

[0007] Beneficial effects of the present invention:

[0008] 1. This locking structure has a self-locking function. The greater the external force, the greater the locking force and the tighter the lock. The locking structure of similar slide rails will have a greater risk of failure as the external force increases.

[0009] 2. The locking function can be achieved at any position in the travel without being restricted by any gear position.

[0010] 3. After locking, the moving part will not produce any relative movement. Similar slide rail locking structures have a certain amount of movement in the moving part after locking due to the influence of structure and processing accuracy, which can easily collide under the action of external force or inertia and cause abnormal noise, affecting the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The structure of the present invention is schematically shown Figure 1.

[0012] Figure 2 The structure of the present invention is schematically shown Figure 2 .

[0013] Figure 3 The structure of the present invention is schematically shown Figure 3 .

[0014] Figure 4 Schematic diagram of the locking structure of the present invention installed on the slide rail Figure 1 .

[0015] Figure 5 Schematic diagram of the locking structure of the present invention installed on the slide rail Figure 2 .

[0016] Figure 6 Schematic diagram of the locking structure of the present invention installed on the slide rail Figure 3 .

[0017] Figure 7 for Figure 6 AA section view (unlocked).

[0018] Figure 8 for Figure 6 AA section view (locked state). DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] like Figure 1-3 A slide rail locking structure includes a driving cable 9, a locking motor 11, a lock housing 3, and a lock cover 1. A driving connecting rod 2, a connecting rod reset spring 8, a locking head 4, and a lock head push rod 6 are arranged inside the lock housing 3. A lever 5 is arranged on the driving connecting rod 2. The lever 5 abuts against the locking head 4. The lock head push rod 6 also abuts against the locking head 4 through the extrusion of the push rod spring 7. The locking head 4 is arranged in a track groove 31 on the lock housing 3. The locking head 4 rolls back and forth in the track groove 31 through the extrusion of the lever 5 and the lock head push rod 6. When the locking head 4 rolls to the outer end of the lock housing 3, the locking head 4 abuts against the slide rail. When the locking head 4 rolls to the inner end of the lock housing 3, the locking head 4 is separated from the slide rail. One end of the driving cable 9 is connected to the locking motor 11, and the other end is connected to the driving connecting rod 2. The connecting rod reset spring 8 is arranged in the lock housing 3 and abuts against the driving connecting rod 2.

[0021] like Figure 4 , Figure 5 , Figure 6 The locking structure is installed on the slide rail, the upper slide rail 21, the lower slide rail 22, and the locking motor 11 is connected to the drive pull 9.

[0022] The unlocking process is as follows: the locking motor 11 provides a lateral pulling force to the driving wire 9, which is transmitted to the driving connecting rod 2. The driving connecting rod 2 overcomes the resistance of the connecting rod return spring 8 and moves along the Y direction of the slide rail. The driving connecting rod 2 drives the lever 5. The lever 5 squeezes the locking head 4 and rolls to the inner end of the lock housing 3 in the track groove 31. The locking head 4 is out of contact with the side wall of the slide rail, thereby releasing the lock of the slide rail. Figure 7 shown.

[0023] The locking process is as follows: the locking motor 11 stops and the driving wire 9 is not subjected to force, then the driving connecting rod 2 will bounce the lever 5 open under the elastic force of the connecting rod return spring 8, and the lever 5 will no longer resist the locking head 4, then the locking head 4 will roll to the outer end of the lock shell 3 in the track groove 31 under the extrusion of the lock head top rod 6, and resist the side wall of the slide rail, thereby locking the slide rail; its force analysis is as follows: the driving force (F1 or F2) in the direction of movement is decomposed through the locking structure "lock shell-inclined surface" and "locking head", and most of the force in the direction of movement (F1 or F2) is converted into a force perpendicular to the direction of movement (F3 or F4), and the vertical force (F3 or F4) acts on the side wall of the lower slide rail through the locking head, generating a positive pressure on the side wall of the lower slide rail, and this positive pressure is converted into friction resistance while the upper slide rail has a tendency to move, thereby preventing the upper slide rail from moving, thereby realizing the locking function, such as Figure 8 shown.

[0024] like Figure 3 , at least two locking heads 4 are provided, and four are provided in this embodiment. The four locking heads are distributed in the four directions of the upper, lower, left and right of the driving connecting rod. Each locking head corresponds to a lever and a locking head top rod, and each locking head is provided in a track groove. The lever 51 on one side of the driving connecting rod 2 is fixed on the driving connecting rod, and the lever 52 on the other side is hinged on the driving connecting rod. Specifically, a fixed shaft is provided on the upper side, and the lever 52 is sleeved on the fixed shaft and can rotate around the fixed shaft; when the locking motor 11 is started, the driving wire 9 is pulled to drive the driving connecting rod 2 to move to the left along the slide rail, and the right lever 51 fixed on the driving connecting rod 2 is moved to the left to squeeze the locking head 41 to the left, and the left lever 52 hinged on the driving connecting rod 2 is rotated to the right, thereby moving the locking head 42 to the right. In this way, the locking heads 41 and 42 on both sides roll inward at the same time, and finally leave the slide rail to complete the unlocking. When the locking motor stops, the force driving the driving connecting rod 2 disappears, and the driving connecting rod moves to the right under the action of the connecting rod return spring 8. The levers 51 and 52 on both sides no longer push and squeeze the locking heads. The locking heads 41 and 42 are squeezed to the outer ends along their respective track grooves under the action of their respective lock head push rods, and press against the side walls of the slide rails, thereby locking the slide rails.

Claims

1. A slide rail locking structure, characterized in that: The invention comprises a driving cable (9), a locking motor (11), a lock shell (3), and a lock cover (1). The lock shell (3) is provided with a driving connecting rod (2), a connecting rod return spring (8), a locking head (4), and a locking head push rod (6). A lever (5) is provided on the driving connecting rod (2). The lever (5) abuts against the locking head (4). The locking head push rod (6) also abuts against the locking head (4) through the compression of a push rod spring (7). The locking head (4) is arranged in a track groove (31) on the lock shell (3). The locking head (4) rolls back and forth in the track groove (31) through the compression of the lever (5) and the locking head push rod (6). When the locking head (4) rolls to the outer end of the lock shell (3), the locking head (4) abuts against a slide rail. When the locking head (4) rolls to the inner end of the lock shell (3), the locking head (4) is separated from the slide rail. One end of the driving cable (9) is connected to the locking motor (11), and the other end is connected to the driving connecting rod (2).

2. A slide rail locking structure according to claim 1, characterized in that: At least two locking heads (4) are provided, and each locking head (4) corresponds to a lever (5) and a locking head push rod (6).

3. A slide rail locking structure according to claim 2, characterized in that: The driving connecting rod (2) has one end fixed to the shifting rod and the other end hinged to the shifting rod.

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