Slide rail front locking device

Abstract

The utility model relates to slide rail front lock device, include: second rail, outside front end installation lock block, the lock tongue of lock block passes through and exposes in the inside of second rail, first rail, slide setting in the inside of second rail, lock assembly, between first rail and second rail, including body, the lower end of body is set up and opens the clamping slot, two through -holes are set up on the body, rivet has two, respectively passes through the through -hole and is fixed on first rail, the interval between two through -holes is less than the interval between the stem of two rivets, wherein, first rail slides out second rail, the lock tongue promotes lock assembly, makes the body relative to first rail rotate towards first direction, until the lock tongue is inserted into the clamping slot, realizes first rail and second rail locking, when first rail draws out to the maximum position. This embodiment only uses one body relative to first rail rotation and with the lock tongue joint realizes first rail and second rail's locking, simple structure, convenient installation, improved the stability and security when the slide rail operation.

Description

Technical Field

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

[0002] Currently, server chassis are installed in the rack via sliding rails.

[0003] Server chassis slide rail structures typically include a second rail installed in the rack and a first rail that slides inside the second rail. During the sliding process of the first rail relative to the second rail, it is easy to accidentally pull out the first rail excessively or completely, which makes it inconvenient to use.

[0004] Existing locking devices, such as the slide rail with a dual-channel synchronous opening and closing structure for locking, unlocking, and splitting of the inner rail (document number CN220755295U), require a blocking plate on the middle rail to engage between two sets of rotatable sliding plates on the inner rail to achieve locking. This results in multiple structures, high costs, and cumbersome installation.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model discloses a slide rail front locking device to solve the problems of multiple structures and cumbersome installation of server slide rail locking devices.

[0007] The technical solution adopted in this utility model is as follows: A slide rail front locking device includes: a second rail with a locking block mounted on its outer front end, the locking tongue of the locking block passing through and protruding from the inner side of the second rail; a first rail slidably disposed on the inner side of the second rail; a locking assembly located between the first rail and the second rail, including a body with a slot at the lower end of the body and two through holes on the body; and two rivets, each passing through one of the through holes and fixed to the first rail, the distance between the two through holes being less than the distance between the shanks of the two rivets; wherein, when the first rail slides out of the second rail, the locking tongue pushes the locking assembly, the two through holes slide relative to the rivets, causing the body to rotate relative to the first rail in a first direction until the locking tongue engages in the slot.

[0008] A further technical solution is that the through hole is an oblong hole, and the two oblong holes are parallel to each other and perpendicular to the sliding direction of the first rail.

[0009] A further technical solution is that a first inclined edge is provided on the front side of the lower end of the body; the first rail slides out of the second rail, and the first inclined edge contacts the locking tongue and is pushed open by the locking tongue.

[0010] A further technical solution is that a second bevel is provided on the rear side of the lower end of the body; the first rail is installed into the second rail, the second bevel contacts the latch and is pushed open by the latch, the two through holes slide relative to the rivet, and the body rotates relative to the first rail in a second direction until the latch is engaged in the slot.

[0011] A further technical solution is that a lever is provided at the front end of the lock assembly, and the lower end of the lever is not lower than the upper end of the first inclined side.

[0012] A further technical solution is that a first hole is opened on the first rail, and a first limiting post is provided at the lower end of the inner side of the first hole; a second hole is opened on the body, and a second limiting post is provided at the upper end of the inner side of the second hole; the lock assembly also includes an elastic element, which is disposed in the first hole and the second hole, with one end connected to the first limiting post and the other end connected to the second limiting post.

[0013] A further technical solution is that the lock block is riveted to the outside of the second rail, the lock tongue is integrally bent and formed with the lock block, and the lock tongue is parallel to the sliding direction of the first rail.

[0014] A further technical solution is to bevel the front and rear sides of the locking tongue.

[0015] A further technical solution is that the slot is an inverted isosceles trapezoid.

[0016] The beneficial effects of this utility model embodiment are as follows: (I) In the sliding rail front locking device of this utility model embodiment, the first rail is pulled out of the second rail, the locking tongue pushes the locking assembly, the two through holes slide relative to the rivet, so that the body rotates relative to the first rail in the first direction, the front end of the slot is raised, at this time the elastic element is squeezed by the body to generate elastic force until the locking tongue enters the slot from the front end, realizing the locking of the first rail and the second rail. At this time, the first rail is pulled out to the maximum position.

[0017] The slide rail front locking device in this embodiment uses only one body to rotate relative to the first rail and engage with the locking tongue to lock the first and second rails. It has a simple structure, is easy to install, and improves the stability and safety of the slide rail during operation.

[0018] (ii) Furthermore, a lever is provided at the front end of the lock assembly. The lower end of the lever is not lower than the upper end of the first inclined side, which facilitates operation by the user. By moving the lever, the body rotates relative to the first rail in the first or second direction, causing the front or rear end of the body to tilt up, so that the corresponding end of the slot enters or disengages from the lock tongue, thereby unlocking or removing the first rail from the second rail.

[0019] A second bevel is provided on the rear side of the lower end of the main body. The first rail is installed into the second rail, the second bevel contacts the latch and is pushed open by the latch, the two through holes slide relative to the rivets, and the main body rotates relative to the first rail in the second direction until the latch is engaged in the slot, so that the first rail can be reinstalled into the second rail.

[0020] (iii) Further, a first hole is formed on the first rail, and a first limiting post is provided at the lower inner end of the first hole. A second hole is formed on the main body, and a second limiting post is provided at the upper inner end of the second hole. The lock assembly also includes an elastic element, which is disposed in the first hole and the second hole, with one end connected to the first limiting post and the other end connected to the second limiting post. The elastic element serves to reset the main body. Attached Figure Description

[0021] Figure 1 This is an exploded view of the first rail and lock assembly in the slide rail front locking device of this utility model.

[0022] Figure 2 This is an exploded view of the second rail and the locking block in the slide rail front locking device of this utility model.

[0023] Figure 3 This is a partial cross-sectional view of the main body of the slide rail front locking device of this utility model.

[0024] Figure 4 This is a schematic diagram showing the state of the first rail sliding out of the second rail in the slide rail front locking device of this utility model.

[0025] Figure 5 This is a schematic diagram showing the state of the first and second rails during the locking process in the slide rail front locking device of this utility model.

[0026] Figure 6 This is a schematic diagram showing the locked state of the first and second rails in the slide rail front locking device of this utility model.

[0027] Figure 7 This is a schematic diagram showing the state of the first rail being removed from the second rail in the slide rail front locking device of this utility model.

[0028] Figure 8 This is a schematic diagram showing the state of the slide rail front locking device of this utility model after the first rail has been removed from the second rail.

[0029] Figure 9This is a schematic diagram showing the state of the first rail being inserted into the second rail in the slide rail front locking device of this utility model.

[0030] Figure 10 This is a schematic diagram showing the state of the first and second rails during the unlocking process in the slide rail front locking device of this utility model.

[0031] In the picture: 1. First rail; 11. Second hole; 12. Second limiting post; 2. Second rail; 21. Lock block; 22. Lock tongue; 3. Lock assembly; 31. Body; 311. Slot; 312. Waist-shaped hole; 313. First hole; 314. First limiting post; 315. First bevel; 316. Second bevel; 32. Lever; 33. Rivet; 34. Elastic element. Detailed Implementation

[0032] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0033] Example: This embodiment discloses a slide rail front locking device.

[0034] exist Figure 1 In the embodiments shown in the other accompanying figures, the direction indicated by arrow X is the front end of the slide rail, i.e., the opening direction; the opposite direction indicated by arrow X is the rear end of the slide rail, i.e., the closing direction; the direction indicated by arrow Y is the outer side of the slide rail; and the opposite direction indicated by arrow Y is the inner side of the slide rail. In this paragraph and other parts of this document, the front end of the slide rail refers to the end of the slide rail closest to the pull-out direction; the rear end of the slide rail refers to the end of the slide rail closest to the closing direction; the inner side of the slide rail refers to the side of the second rail 2 closest to the first rail 1; and the outer side of the slide rail refers to the side of the first rail 1 closest to the second rail 2.

[0035] like Figure 1 and Figure 2 As shown, the slide rail front locking device includes a second rail 2, a first rail 1, a locking assembly 3, and a rivet 33.

[0036] A locking block 21 is installed at the outer front end of the second rail 2, and the locking tongue 22 of the locking block 21 passes through and protrudes from the inner side of the second rail 2. For example, the locking block 21 is riveted to the outer side of the second rail 2, and the locking tongue 22 is integrally bent and formed with the locking block 21, with the locking tongue 22 parallel to the sliding direction of the first rail 1. Preferably, the front and rear sides of the locking tongue 22 are chamfered to reduce collision and wear with the body 31, improving service life and stability during rail sliding.

[0037] The first rail 1 is slidably positioned inside the second rail 2.

[0038] The lock assembly 3 is located between the first rail 1 and the second rail 2, and includes a body 31. A slot 311 is opened at the lower end of the body 31, and two through holes are opened on the body 31.

[0039] Two rivets 33 are provided, each passing through a through hole and fixed to the first rail 1. The maximum inner diameter of the through hole is smaller than the outer diameter of the rivet head, preventing the body 31 from detaching from the rivet 33. Figure 3 As shown, the distance X between the two through holes is less than the distance Y between the shanks of the two rivets 33, allowing the body 31 to rotate relative to the first rail 1. For example, the through holes are oblong holes 312, with the two oblong holes 312 parallel to each other and perpendicular to the sliding direction of the first rail 1. Of course, the through holes can also be arc-shaped or irregular polygonal, as long as they satisfy the requirement that the body 31 will not detach from the rivets 33 and that the body 31 can rotate relative to the first rail 1. This invention does not impose further limitations in this regard.

[0040] like Figures 4-6 As shown, the first rail 1 slides out of the second rail 2, the latch 22 pushes the lock assembly 3, and the two through holes slide relative to the rivet 33, causing the body 31 to rotate relative to the first rail 1 in a first direction until the latch 22 is engaged in the slot 311. For example, a first inclined edge 315 is provided on the lower front side of the body 31. When the first rail 1 slides out of the second rail 2, the first inclined edge 315 contacts the latch 22 and is pushed open by the latch 22. The body 31 rotates clockwise relative to the first rail 1 with the rivet 33 as a fulcrum or with the contact point between the lower end of the body 31 and the groove of the first rail 1 as a fulcrum, allowing the latch 22 to enter the slot 311. The first inclined edge 315 can be a straight edge or an arc edge to reduce collision and wear with the latch 22 and improve the smoothness and stability of the slide rail. Preferably, the slot 311 is an inverted isosceles trapezoid to further prevent the latch 22 from dislodging from the slot 311 due to shaking or excessive pushing and pulling of the first rail 1.

[0041] like Figure 7 and Figure 8 As shown, further, a lever 32 is provided at the front end of the lock assembly 3. The lower end of the lever 32 is not lower than the upper end of the first inclined side 315, which is convenient for the user to operate. By moving the lever 32, the body 31 rotates relative to the first rail 1 in the first or second direction, so that the front or rear end of the body 31 is raised, so that the corresponding end of the slot 311 enters or disengages from the lock tongue 22, thereby realizing the unlocking or removal of the first rail 1 and the second rail 2.

[0042] like Figure 9As shown, further, a second bevel 316 is provided on the rear side of the lower end of the main body 31. The first rail 1 is installed into the second rail 2, and the second bevel 316 contacts and is pushed open by the latch 22. The two through holes slide relative to the rivet 33, and the main body 31 rotates relative to the first rail 1 in the second direction until the latch 22 is engaged in the slot 311. For example, the main body 31 rotates counterclockwise relative to the first rail 1 with the rivet 33 as the fulcrum or with the contact point between the lower end of the main body 31 and the groove of the first rail 1 as the fulcrum, so that the latch 22 can enter the slot 311.

[0043] like Figure 1 As shown, further, a first hole 313 is formed on the first track 1, and a first limiting post 314 is provided at the lower inner end of the first hole 313. A second hole 11 is formed on the body 31, and a second limiting post 12 is provided at the upper inner end of the second hole 11. The lock assembly 3 also includes an elastic element 34, which is disposed in the first hole 313 and the second hole 11, with one end connected to the first limiting post 314 and the other end connected to the second limiting post 12.

[0044] In this embodiment, as Figures 4-6 As shown, the first rail 1 is pulled out and the second rail 2 is pulled out. The locking tongue 22 pushes up the first inclined side 315. The two through holes slide relative to the rivet 33. The body 31 rotates clockwise relative to the first rail 1 in the vertical plane, causing the front end of the slot 311 to lift up. At this time, the elastic element 34 is squeezed by the body 31 to generate elastic force until the locking tongue 22 enters the slot 311 from the front end, realizing the locking of the first rail 1 and the second rail 2. At this time, the first rail 1 is pulled out to the maximum position, and the elastic element 34 pushes the body 31 to rotate counterclockwise to reset.

[0045] like Figure 7 and Figure 8 As shown, when the first rail 1 is removed from the second rail 2, the lever 32 is pressed from the top, and the body 31 rotates counterclockwise in the vertical plane relative to the first rail 1, causing the rear end of the slot 311 to lift up, and the locking tongue 22 can disengage from the rear end of the slot 311. At this time, the elastic element 34 is squeezed by the body 31 to generate elastic force, and the first rail 1 continues to slide forward to remove the second rail 2. The elastic element 34 pushes the body 31 to rotate clockwise to reset.

[0046] like Figure 9 As shown, when the first rail 1 is inserted into the second rail 2, the locking tongue 22 pushes up the second inclined side 316, and the body 31 rotates counterclockwise relative to the first rail 1 in the vertical plane, causing the rear end of the slot 311 to tilt up. At this time, the elastic element 34 is squeezed by the body 31 to generate elastic force until the locking tongue 22 enters the slot 311 from the rear end of the slot 311, thereby locking the first rail 1 and the second rail 2. Thus, the first rail 1 is inserted into the second rail 2 and locked. The elastic element 34 pushes the body 31 to rotate clockwise to reset.

[0047] like Figure 10As shown, when unlocking, the lever 32 is lifted from the bottom, and the body 31 rotates clockwise in the vertical plane relative to the first rail 1, causing the front end of the slot 311 to lift up. At this time, the elastic element 34 is squeezed by the body 31 to generate elastic force, and the first rail 1 can slide into the second rail 2. The locking tongue 22 disengages from the front end of the slot 311, realizing the unlocking of the first rail 1 and the second rail 2. When the first inclined side 315 slides along the locking tongue 22, the elastic element 34 pushes the body 31 to rotate counterclockwise to reset.

[0048] The slide rail front locking device in this embodiment has a simple structure. It uses only one body 31 to rotate and engage or disengage with the locking tongue 22 to lock, unlock, remove and install the first rail 1 and the second rail 2. The structure is simple and easy to install, which improves the stability and safety of the slide rail during operation.

[0049] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A slide rail front locking device, characterized in that, The slide rail front locking device includes: The second track has a locking block installed at its outer front end, with the locking tongue of the locking block passing through and protruding from the inner side of the second track; The first rail is slidably positioned inside the second rail; A locking assembly, located between the first and second rails, includes a body, a slot at the lower end of the body, and two through holes on the body; Two rivets are provided, each passing through a through hole and fixed to the first rail. The distance between the two through holes is less than the distance between the shanks of the two rivets. In this configuration, the first rail slides out of the second rail, the latch pushes the lock assembly, and the two through holes slide relative to the rivet, causing the body to rotate relative to the first rail in a first direction until the latch engages in the slot.

2. The slide rail front locking device according to claim 1, characterized in that: The through hole is a waist-shaped hole, and the two waist-shaped holes are parallel to each other and perpendicular to the sliding direction of the first rail.

3. The slide rail front locking device according to claim 1, characterized in that: A first inclined edge is provided on the front side of the lower end of the main body; The first rail slides out of the second rail, and the first inclined edge contacts the locking tongue and is pushed open by the locking tongue.

4. The slide rail front locking device according to claim 1, characterized in that: A second inclined edge is provided on the rear side of the lower end of the main body; The first rail is installed into the second rail, the second inclined edge contacts the latch and is pushed open by the latch, the two through holes slide relative to the rivet, and the body rotates relative to the first rail in the second direction until the latch is engaged in the slot.

5. The slide rail front locking device according to claim 3, characterized in that: A lever is provided at the front end of the lock assembly, and the lower end of the lever is not lower than the upper end of the first inclined side.

6. The slide rail front locking device according to claim 1, characterized in that: A first hole is formed on the first rail, and a first limiting post is provided at the lower inner end of the first hole; a second hole is formed on the body, and a second limiting post is provided at the upper inner end of the second hole; The lock assembly also includes an elastic element disposed in the first hole and the second hole, with one end connected to the first limiting post and the other end connected to the second limiting post.

7. The slide rail front locking device according to claim 1, characterized in that: The locking block is riveted to the outside of the second rail, and the locking tongue is integrally bent and formed with the locking block. The locking tongue is parallel to the sliding direction of the first rail.

8. The slide rail front locking device according to claim 7, characterized in that: The front and rear sides of the latch are beveled.

9. The slide rail front locking device according to claim 1, characterized in that: The slot is an inverted isosceles trapezoid.

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