Double fork lock type slide rail

Abstract

The utility model discloses a double fork lock pays slide rail, including fixed rail, movable rail, first fork mechanism, second fork mechanism and lock catch, wherein, first fork mechanism adopts the cooperation of the closed state lock spare and first lock force spring that hinged on the track, when the lock catch on the other track abuts to first abutment inclined plane and reaches the position of first clamping mouth, makes the closed state lock spare automatic rebound, and the realization movable rail is locked under the closed state through the clamping of lock catch to first clamping mouth, and the first handle is set up on the closed state lock spare, and the removal of slide rail locking state is realized through the stirring of first handle, then, second fork mechanism adopts the same principle with first fork mechanism, realizes the automatic locking or quick unlocking of movable rail in the extension state, so that double fork lock pays slide rail can be locked quickly and conveniently whether in closing or opening, guarantees the stable, safe bearing posture of bearing article.

Description

Technical Field

[0001] This utility model relates to the field of slide rail technology, and in particular to a double-fork locking slide rail. Background Technology

[0002] Telescopic slides, as core components enabling linear extension in modern furniture, industrial equipment, and precision instruments, directly determine the safety performance and user experience of the entire sliding system through the reliability of their locking structure. In specific application scenarios, the loads often have high value, high risk, or stringent stability requirements. Traditional slides rely on simple friction to maintain position, which can easily lead to unexpected displacement when subjected to accidental impacts or vibrations, significantly reducing safety. Traditional locking slides typically use ordinary plastic fasteners, resulting in poor rigidity and easy deformation, leading to accidental loosening or damage, also compromising safety. Furthermore, existing locking structures generally require manual locking after the slide has extended or retracted; if the extension / retraction stroke is insufficient, locking may fail, requiring readjustment of the slide's extension / retraction stroke, which is inconvenient. Therefore, there is an urgent need for a more secure locking slide with a quick-locking function. Utility Model Content

[0003] The purpose of this utility model is to provide a double-fork locking slide rail, which solves the problems of cumbersome locking operation and low safety of traditional locking slide rails.

[0004] The present invention provides the following technical solution: a double-fork locking slide rail, comprising a fixed rail, a movable rail, a first fork mechanism, a second fork mechanism, and a latch. The first fork mechanism includes a closed locking member and a first locking spring, and the second fork mechanism includes an extended locking member and a second locking spring. The closed locking member is provided with a first latch, a first abutting inclined surface, and a first handle, and the side of the closed locking member away from the first handle is hinged to the slide rail. The extended locking member is recessed with a second latch, a second abutting inclined surface, and a second handle, and the side of the extended locking member away from the second handle is hinged to the slide rail. The closed lock and the extended lock are respectively hinged to both ends of the same slide rail. The latch is located on another slide rail. When the movable rail retracts along the length of the fixed rail, the latch abuts against the first abutting inclined surface, causing the closed lock to swing and compress the first locking spring until the first latch engages with the latch to lock the closed state of the movable rail. When the movable rail extends along the length of the fixed rail, the latch abuts against the second abutting inclined surface, causing the extended lock to swing and compress the second locking spring until the second latch engages with the latch to lock the extended state of the movable rail.

[0005] In the double-shifting-fork locking slide rail as described above, the lock catch is arranged at the head end of the fixed rail and located on the side of the fixed rail close to the movable rail, and the closed-state locking member is hinged to the head end of the movable rail, and the closed-state locking member and the extended-state locking member are located on the side of the movable rail close to the fixed rail.

[0006] In the double-shifting-fork locking slide rail as described above, the first abutting inclined surface is located on the side of the first bayonet away from the first handle, and the second abutting inclined surface is located between the second bayonet and the second handle.

[0007] In the double-shifting-fork locking slide rail as described above, the cross section of the movable rail is arranged in a "匚" shape, so that oppositely arranged side walls are formed on the side of the movable rail close to the fixed rail, the first locking force spring abuts between the side of the closed-state locking member away from the first bayonet and the side wall, and the second locking force spring abuts between the side of the extended-state locking member away from the second bayonet and the side wall.

[0008] In the double-shifting-fork locking slide rail as described above, the closed-state locking member is provided with a first notch for fitting one end of the first locking force spring, and the extended-state locking member is provided with a second notch for fitting one end of the second locking force spring.

[0009] In the double-shifting-fork locking slide rail as described above, both the first locking force spring and the second locking force spring are arranged in a "J" shape.

[0010] In the double-shifting-fork locking slide rail as described above, a limiting portion is arranged at the head end of the movable rail, and the limiting portion abuts against the closed-state locking member to restrict the closed-state locking member from swinging away from the first locking force spring.

[0011] In the double-shifting-fork locking slide rail as described above, a rail end opening is formed between the head end of the fixed rail and the head end of the movable rail, the first handle extends out of the rail end opening when the movable rail is in a closed locked state, and the second handle extends out of the rail end opening when the movable rail is in an extended locked state.

[0012] In the double-shifting-fork locking slide rail as described above, the first shifting fork mechanism further comprises a flexible protective sleeve, and the flexible protective sleeve is sleeved on the first handle.

[0013] Compared with the prior art, the utility model has the following advantages: This utility model discloses a double-fork locking slide rail. It employs a first fork mechanism and a second fork mechanism in a double-fork locking configuration to achieve automatic locking of the movable rail relative to the fixed rail in either a closed or extended state. The first fork mechanism uses a closed-state locking member hinged to the rail and a first locking spring. When the latch on the other rail abuts against the first abutting inclined surface and reaches the first locking position, the closed-state locking member automatically springs back. The first locking position engages the latch, automatically locking the movable rail in the closed state. A first handle is provided on the closed-state locking member; moving the first handle releases the slide rail from its locked state. The second fork mechanism, using the same principle as the first fork mechanism, automatically locks or quickly unlocks the movable rail in the extended state. This allows the double-fork locking slide rail to lock quickly and conveniently whether closed or open, avoiding the risk of unexpected displacement of the slide rail in specific application scenarios and ensuring a stable and safe carrying posture for the load-bearing items. Attached Figure Description

[0014] Figure 1 This is a partial perspective view of the side of the double shift fork locking slide rail of this utility model.

[0015] Figure 2 This is a three-dimensional exploded view of the double shift fork locking slide rail of this utility model.

[0016] Figure 3 This is a three-dimensional schematic diagram of the fixed rail of the double shift fork locking slide rail of this utility model.

[0017] Figure 4 This is a three-dimensional schematic diagram of the double shift fork locking slide rail of this utility model in its extended state.

[0018] Explanation of reference numerals in the attached drawings: 1. Fixed rail; 2. Movable rail; 3. First shift fork mechanism; 4. Second shift fork mechanism; 5. Lock; 11. Rail end opening; 21. Side wall; 22. Limiting part; 31. Locking element in closed state; 32. First locking spring; 33. Flexible protective sleeve; 41. Locking element in extended state; 42. Second locking spring; 311. First latch; 312. First abutting slope; 313. First handle; 314. First notch; 411. Second latch; 412. Second abutting slope; 413. Second handle; 414. Second notch. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1: Please refer to the appendix Figure 1 To be continued Figure 4This embodiment provides a double-fork locking slide rail, including a fixed rail 1, a movable rail 2, a first fork mechanism 3, a second fork mechanism 4, and a latch 5. The first fork mechanism 3 includes a closed locking member 31 and a first locking spring 32, and the second fork mechanism 4 includes an extended locking member 41 and a second locking spring 42. The closed locking member 31 is provided with a first latch 311, a first abutting inclined surface 312, and a first handle 313, and the side of the closed locking member 31 away from the first handle 313 is hinged to the slide rail. The extended locking member 41 is recessed with a second latch 411, a second abutting inclined surface 412, and a second handle 413, and the side of the extended locking member 41 away from the second handle 413 is hinged to the slide rail. One side is hinged to the slide rail. The closed lock 31 and the extended lock 41 are respectively hinged to the two ends of the same slide rail. The latch 5 is located on another slide rail. When the movable rail 2 moves and retracts along the length direction of the fixed rail 1, the latch 5 abuts against the first abutting inclined surface 312, causing the closed lock 31 to swing and squeeze the first locking spring 32 until the first latch 311 is engaged with the latch 5 to lock the closed state of the movable rail 2. When the movable rail 2 moves and extends along the length direction of the fixed rail 1, the latch 5 abuts against the second abutting inclined surface 412, causing the extended lock 41 to swing and squeeze the second locking spring 42 until the second latch 411 is engaged with the latch 5 to lock the extended state of the movable rail 2. In this embodiment, the double-fork locking slide rail utilizes a double-fork locking mechanism consisting of a first fork mechanism 3 and a second fork mechanism 4 to achieve automatic locking of the movable rail 2 relative to the fixed rail 1 in either a closed or extended state. The first fork mechanism 3 employs a closed-state locking member 31 hinged to the rail and a first locking spring 32. When the latch 5 on the other rail abuts against the first abutting inclined surface 312 and reaches the position of the first latch 311, the closed-state locking member 31 automatically springs back. The first latch 311 then holds the latch 5, thus securing the movable rail 2. The automatic locking mechanism in the closed state is coupled with a first handle 313 on the locking member 31 in the closed state. The slide rail is released by moving the first handle 313. Then, the second fork mechanism 4 adopts the same principle as the first fork mechanism 3 to realize the automatic locking or quick unlocking of the movable rail 2 in the extended state. This allows the double fork-locked slide rail to be locked quickly and conveniently whether it is closed or open. In specific application scenarios, this avoids the risk of the slide rail being displaced unexpectedly, and ensures the stable and safe bearing posture of the carried items.

[0021] Specifically, the latch 5 is located at the first end of the fixed rail 1, and the latch 5 is located on the side of the fixed rail 1 close to the movable rail 2. The closed locking member 31 is hinged at the first end of the movable rail 2, and the closed locking member 31 and the extended locking member 41 are located on the side of the movable rail 2 close to the fixed rail 1. When the movable rail 2 is opened relative to the fixed rail 1, the latch 5 will first disengage from the first latch 311 after unlocking, thereby moving away from the closed locking member 31, and then gradually approaching the extended locking member 41 until it is locked into the second latch 411.

[0022] Specifically, the first abutting slope 312 is located on the side of the first latch 311 away from the first handle 313, and the second abutting slope 412 is located between the second latch 411 and the second handle 413. The premise of this structural design is that the first handle 313 and the second handle 413 are oriented in the same direction.

[0023] The movable rail 2 has a "U"-shaped cross-section, forming a sidewall 21 opposite to the fixed rail 1. A first locking spring 32 abuts against the sidewall 21 on the side of the locking member 31 away from the first latch 311 in the closed state, and a second locking spring 42 abuts against the sidewall on the side of the locking member 41 away from the second latch 411 in the extended state. A first notch 314 for engaging one end of the first locking spring 32 is provided on the locking member 31 in the closed state, and a second notch 414 for engaging one end of the second locking spring 42 is provided on the locking member 41 in the extended state. This notch structure, by engaging the spring ends, reduces the risk of the spring accidentally disengaging from the locking member and the sidewall 21 during compression, thus improving the reliability of the automatic locking effect of the shift fork mechanism.

[0024] Preferably, both the first locking spring 32 and the second locking spring 42 are arranged in a "J" shape, which results in a simpler structure and lower cost. Furthermore, the locking force required for automatic locking can be adjusted by changing the shape of the lock and the shape of the locking springs.

[0025] Preferably, the first end of the movable rail 2 is provided with a limiting part 22, which abuts against the closed locking member 31 to limit the swing of the closed locking member 31 away from the first locking spring 32.

[0026] A track end opening 11 is formed between the first end of the fixed rail 1 and the first end of the movable rail 2. When the movable rail 2 is in the closed and locked state, the first handle 313 extends out of the track end opening 11. When the movable rail 2 is in the extended and locked state, the second handle 413 extends out of the track end opening 11. The handles extending out of the track end opening 11 facilitate the operator to move the handles to release the locking mechanism.

[0027] The first shift fork mechanism 3 also includes a flexible protective sleeve 33, which is fitted onto the first handle 313. Since the first handle 313 is always in a state of extending out of the end opening 11 of the rail, the flexible protective sleeve 33 makes the use of the first handle 313 on the slide rail safer.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-fork locking slide rail, characterized in that: comprising a fixed rail (1), a movable rail (2), a first shifting fork mechanism (3), a second shifting fork mechanism (4) and a lock catch (5). The first shifting fork mechanism (3) comprises a closed state locking member (31) and a first locking force spring (32). The second shifting fork mechanism (4) comprises an extended state locking member (41) and a second locking force spring (42). The closed state locking member (31) is provided with a first bayonet (311), a first abutting inclined surface (312) and a first handle (313), and the side of the closed state locking member (31) away from the first handle (313) is hinged to the sliding rail track. The extended state locking member (41) is recessedly provided with a second bayonet (411), a second abutting inclined surface (412) and a second handle (413), and the side of the extended state locking member (41) away from the second handle (413) is hinged to the sliding rail track. The closed state locking member (31) and the extended state locking member (41) are respectively hinged to two ends of the same sliding rail track. The lock catch (5) is arranged on the other sliding rail track. When the movable rail (2) is movably retracted along the length direction of the fixed rail (1), the lock catch (5) abuts against the first abutting inclined surface (312) to make the closed state locking member (31) swing so as to compress the first locking force spring (32), until the first bayonet (311) is clamped on the lock catch (5) to lock the closed state of the movable rail (2). When the movable rail (2) is movably extended along the length direction of the fixed rail (1), the lock catch (5) abuts against the second abutting inclined surface (412) to make the extended state locking member (41) swing so as to compress the second locking force spring (42), until the second bayonet (411) is clamped on the lock catch (5) to lock the extended state of the movable rail (2).

2. The double-fork locking slide rail according to claim 1, characterized in that: The lock catch (5) is arranged at the head end of the fixed rail (1), and the lock catch (5) is located on the side of the fixed rail (1) close to the movable rail (2). The closed state locking member (31) is hinged to the head end of the movable rail (2), and the closed state locking member (31) and the extended state locking member (41) are located on the side of the movable rail (2) close to the fixed rail (1).

3. A double-fork locking slide rail according to claim 2, characterized in that: The first abutting inclined surface (312) is located on the side of the first bayonet (311) away from the first handle (313). The second abutting inclined surface (412) is located between the second bayonet (411) and the second handle (413).

4. A double-fork locking slide rail according to claim 3, characterized in that: The cross section of the movable rail (2) is arranged in a "C" shape, so that side walls (21) arranged opposite to each other are formed on the side of the movable rail (2) close to the fixed rail (1). The first locking force spring (32) abuts between the side of the closed state locking member (31) away from the first bayonet (311) and the side wall (21). The second locking force spring (42) abuts between the side of the extended state locking member (41) away from the second bayonet (411) and the side wall.

5. A double-fork locking slide rail according to claim 4, characterized in that: The closed locking member (31) has a first notch (314) for engaging one end of the first locking spring (32), and the extended locking member (41) has a second notch (414) for engaging one end of the second locking spring (42).

6. A double-fork locking slide rail according to claim 5, characterized in that: Both the first locking spring (32) and the second locking spring (42) are arranged in a "J" shape.

7. A double-fork locking slide rail according to claim 2, characterized in that: The first end of the movable rail (2) is provided with a limiting part (22), which abuts against the closed state lock (31) to restrict the closed state lock (31) from swinging away from the first locking spring (32).

8. A double-fork locking slide rail according to claim 2, characterized in that: A track end opening (11) is formed between the first end of the fixed rail (1) and the first end of the movable rail (2). When the movable rail (2) is in a closed and locked state, the first handle (313) extends out of the track end opening (11). When the movable rail (2) is in an extended and locked state, the second handle (413) extends out of the track end opening (11).

9. A double-fork locking slide rail according to claim 8, characterized in that: The first shift fork mechanism (3) also includes a flexible protective sleeve (33), which is fitted onto the first handle (313).

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