Silent guide rail

Abstract

The utility model provides a kind of mute guide rail, including inner rail, outer rail, middle rail, inner pearl nest, outer pearl nest, outer rail is equipped with buffer device, buffer device includes base and buffer cylinder, spring, sliding block, sliding block is slidably connected on base, sliding block is equipped with rotating arm, rotating arm can be slid in base while rotating on sliding block with sliding block sliding to be connected or separated with inner rail, sliding block is equipped with buffer rib position, rotating arm is slidably connected with buffer rib position in rotating process, the inner rail is equipped with poking block, the poking block is equipped with the first tooth hook for rotating arm and the second tooth hook for being directly connected with rotating arm with inner rail sliding under the action of external force with inner rail buckling use. Simple structure, high running stability, practical and reliable, and can achieve mute effect when closing and unlocking, improve the use experience of product.

Description

Technical Field

[0001] This utility model relates to the field of guide rail technology, specifically a silent guide rail. Background Technology

[0002] Drawer slides are hardware components fixed to the furniture cabinet body, allowing drawers or cabinet panels to slide open and close. They are widely used in kitchen cabinets, wardrobes, bathroom vanities, and other similar applications.

[0003] The main types of drawer slides include roller slides and ball bearing slides. Ball bearing slides, in particular, are available in two-section and three-section versions. For example, a three-section slide consists of an inner rail that drives the drawer, an outer rail fixed to the cabinet, a middle rail connecting the inner and outer rails, and inner and outer ball bearing housings that support the sliding of the inner and middle rails. This type of three-section slide offers smooth sliding, strong load-bearing capacity, and some models feature a soft-close mechanism, making them suitable for mid- to high-end furniture.

[0004] Although the three-section guide rail structure described above has some buffer self-closing function, it still has a shortcoming: the unlocking sound is relatively loud when closing, which affects the user experience. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a silent guide rail with a simple structure, high operational stability, practicality and reliability, and a silent effect when closing and unlocking, thereby improving the user experience.

[0006] The purpose of this invention is achieved as follows: A silent guide rail includes an inner rail for driving the drawer to slide, an outer rail fixed to the cabinet body, a middle rail connecting the inner and outer rails, and inner and outer bead sockets for supporting the sliding of the inner and middle rails respectively. The outer rail is equipped with a buffer device, which includes a supporting base and a buffer cylinder, spring, and slider mounted on the base. The slider is slidably connected to the base and has a rotating arm. The rotating arm can slide on the base and rotate on the slider to engage or disengage with the inner rail as the slider slides. The slider has a buffer rib, and the rotating arm is slidably connected to the buffer rib during rotation. The inner rail is equipped with a toggle block. The toggle block has a first toothed hook for engaging the rotating arm with the inner rail under external force and a second toothed hook for directly engaging the rotating arm as the inner rail slides. The first and second toothed hooks are connected from the outside to the inside of the toggle block.

[0007] Based on the above optimization, the base is provided with a connecting arm for sliding connection of the slider. The connecting arm is provided with a guide groove for sliding of the rotating arm. The guide groove is provided with an initial point for the rotating arm to be engaged into the first toothed hook under the action of external force when it is in the initial position, and a clamping point for the rotating arm to be engaged directly into the second toothed hook as it slides along the inner rail. The rotating arm is connected to the buffer rib while sliding to the clamping point.

[0008] Based on the above optimization, the rotating arm and the buffer rib are connected with an interference fit.

[0009] Based on the above optimization, the rotating arm is connected to the buffer rib with zero clearance.

[0010] Based on the above optimization, the initial position is provided with an elastic arm that deforms under external force to allow the rotating arm to engage with the first toothed hook.

[0011] Based on the above optimization, the connecting arm is provided with a connecting groove for the linear sliding of the slider, and the connecting groove is provided on the left and right sides of the connecting arm.

[0012] Based on the above optimization, the slider is equipped with a protective buffer block to prevent the inner rail from colliding with the rotating arm when it sinks. The protective buffer block is located on one side of the buffer rib.

[0013] Based on the above optimization, the base is provided with a snap-fit ​​position for installing a buffer cylinder in the middle, and the push rod of the buffer cylinder is snapped into the slider.

[0014] Based on the above optimization, the base is provided with mounting grooves distributed on both sides of the snap-fit ​​position, and the spring is installed in the mounting groove with the two elastic ends of the spring respectively fastened to the base and the slider.

[0015] The advantages of this invention are as follows: The buffer device employs a structure in which the buffer cylinder, spring, slider, rotating arm, and actuating block work together. When the guide rail is closed, the actuating block actuates and engages with the rotating arm. Under the action of the spring and buffer cylinder, a buffering self-closing function is achieved, reducing noise generation. Furthermore, due to the action of the buffer ribs, when the guide rail is closed and unlocked, the rotating arm slides tightly against the buffer ribs, achieving deceleration and noise reduction, thus achieving a silent operation. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the rotating arm in the fastening state of a preferred embodiment of the present invention.

[0017] Figure 2 This is a structural diagram of the swing arm in the unfastened state of a preferred embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the rotation process of the rotating arm in a preferred embodiment of the present invention.

[0019] Figure 4 This is an exploded view of a preferred embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of the base of a preferred embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the structure of the toggle block in a preferred embodiment of the present invention. Detailed Implementation

[0022] The present invention will now be further described with reference to the accompanying drawings.

[0023] According to the appendix Figures 1 to 6 As shown, the silent drawer slide of this utility model includes an inner rail 1 that drives the drawer to slide, an outer rail 2 fixed to the cabinet body, a middle rail 3 connecting the inner rail 1 and the outer rail 2, and inner bead sockets 4 and outer bead sockets 5 for supporting the sliding of the inner rail 1 and the middle rail 3 respectively. The outer rail 2 is equipped with a buffer device. The buffer device includes a base 6 that provides support, and a buffer cylinder 7, a spring 8, and a slider 9 mounted on the base 6. The slider 9 is slidably connected to the base 6, and a rotating arm 10 is mounted on the slider 9. The rotating arm 10 can slide on the base 6 and rotate on the slider 9 simultaneously to engage or disengage with the inner rail 1.

[0024] In practical applications, the rotating arm 10 is screwed onto the slider 9 and then slidably mounted onto the base 6. The base 6 has a locking position 22 in the middle for mounting the buffer cylinder 7, and the push rod of the buffer cylinder 7 is locked to the slider 9. Simultaneously, the base 6 has mounting grooves 23 distributed on both sides of the locking position 22. The spring 8 is installed in the mounting grooves 23, and its two elastic ends are respectively fastened to the base 6 and the slider 9. When the guide rail is closed, the spring 8 enables the guide rail to self-close, and the buffer cylinder 7 provides damping, allowing the drawer to close slowly and preventing a loud impact noise between the drawer and the cabinet.

[0025] Reference Figures 1 to 6 As shown, the slider 9 is provided with a buffer rib position 11. The rotating arm 10 is slidably connected to the buffer rib position 11 during rotation.

[0026] In practical applications, the rotating arm 10 is interference-fitted with the buffer rib 11. Alternatively, the rotating arm 10 is zero-clearance connected with the buffer rib 11.

[0027] Under the action of the buffer rib 11, when the guide rail is closed and unlocked, the rotating arm 10 and the buffer rib 11 are tightly slidably connected, so as to reduce speed and noise and achieve a silent effect.

[0028] Furthermore, the slider 9 is provided with a protective buffer block 21 to prevent the inner rail 1 from colliding with the rotating arm 10 when it sinks. The protective buffer block 21 is located on one side of the buffer rib position 11.

[0029] With the help of the protective buffer block 21, noise generation is further reduced and the quietness effect is improved.

[0030] Reference Figures 1 to 6As shown in the figure, further detailed, the inner rail 1 is equipped with a toggle block 12. The toggle block 12 is provided with a first toothed hook 13 for engaging with the inner rail 1 under the action of external force and a second toothed hook 14 for directly engaging with the rotating arm 10 as the inner rail 1 slides. The first toothed hook 13 and the second toothed hook 14 are respectively connected from the outside to the inside on the toggle block 12.

[0031] In the optimized design, the base 6 is provided with a connecting arm 15 for sliding connection of the slider 9. The connecting arm 15 is provided with a guide groove 16 for sliding of the rotating arm 10. The guide groove 16 is provided with an initial point 17 for the rotating arm 10 to engage with the first toothed hook 13 under the action of external force when it is in the initial position, and a clamping point 18 for the rotating arm 10 to directly engage with the second toothed hook 14 as it slides along the inner rail 1. The initial point 17 and the clamping point 18 are distributed at the head and tail of the guide groove 16, respectively. When the rotating arm 10 slides to the clamping point 18, it is closely connected to the buffer rib 11.

[0032] When the guide rail is closed, the inner rail 1 moves inward. At this time, the rotating arm 10 is at the locking point 18. When the inner rail 1 reaches this point, the rotating arm 10 automatically enters the second toothed hook 14 of the actuating block 12, so that the inner rail 1 engages with the slider 9, and automatically closes under the action of the spring 8. During unlocking, the rotating arm 10 rotates and connects with the buffer rib 11, effectively slowing down and reducing noise to achieve a silent effect.

[0033] When the rotating arm 10 is at its initial point, and the inner rail 1 reaches this point, the rotating arm 10 cannot automatically engage with the first toothed hook 13. With continued force pushing the inner rail 1, the elastic arm 19 on the base 6 deforms, and the rotating arm 10 engages with the second toothed hook 14. Then, under external force, the actuating block 12 drives the rotating arm 10 to slide freely in the guide groove 16 of the base 6. The rotating arm 10 drives the slider 9 to move freely in the connecting arm 15, sliding and pulling the buffer cylinder 7 and spring 8, so that the buffer cylinder 7 resets and the spring 8 stores energy, achieving the buffer self-closing function. In this way, the actuating block 12 with this structure avoids the rotating arm 10 failing to engage with the actuating block 12 during guide rail operation, improving the operational stability of the structure and preventing the buffer self-closing function from failing.

[0034] The above specific embodiments are only specific implementations of the present utility model with better effects. All structures that are the same as or equivalent to the silent guide rail of the present utility model are within the protection scope of the present utility model.

Claims

1. A silent drawer slide, comprising an inner rail (1) for driving the drawer to slide, an outer rail (2) fixed to the cabinet body, a middle rail (3) connecting the inner rail (1) and the outer rail (2), an inner bead socket (4) and an outer bead socket (5) for supporting the sliding of the inner rail (1) and the middle rail (3), characterized in that: The outer rail (2) is equipped with a buffer device, which includes a base (6) that provides support and a buffer cylinder (7), a spring (8), and a slider (9) mounted on the base (6). The slider (9) is slidably connected to the base (6) and is equipped with a rotating arm (10). The rotating arm (10) can slide on the base (6) and rotate on the slider (9) to engage or disengage with the inner rail (1) as the slider (9) slides. The slider (9) is provided with a buffer. The rib (11) is slidably connected to the rotating arm (10) during rotation. The inner rail (1) is equipped with a toggle block (12). The toggle block (12) is provided with a first toothed hook (13) for the rotating arm (10) to engage with the inner rail (1) under external force and a second toothed hook (14) for the rotating arm (10) to engage directly with the rotating arm (10) as the inner rail (1) slides. The first toothed hook (13) and the second toothed hook (14) are connected from the outside to the inside on the toggle block (12).

2. The silent guide rail according to claim 1, characterized in that: The base (6) is provided with a connecting arm (15) for sliding connection of the slider (9). The connecting arm (15) is provided with a guide groove (16) for sliding of the rotating arm (10). The guide groove (16) is provided with an initial point (17) for the rotating arm (10) to be engaged in the first toothed hook (13) under the action of external force when it is in the initial position, and a clamping point (18) for the rotating arm (10) to be engaged directly in the second toothed hook (14) as it slides along the inner rail (1). The rotating arm (10) is connected to the buffer rib (11) while sliding to the clamping point (18).

3. The silent guide rail according to claim 2, characterized in that: The rotating arm (10) is interference-fitted with the buffer rib (11).

4. The silent guide rail according to claim 2, characterized in that: The rotating arm (10) is connected to the buffer rib (11) with zero clearance.

5. The silent guide rail according to claim 2, characterized in that: The initial point (17) is provided with an elastic arm (19) that can deform under external force to allow the rotating arm (10) to engage with the first toothed hook (13).

6. The silent guide rail according to claim 2, characterized in that: The connecting arm (15) is provided with a connecting groove (20) for the linear sliding of the slider (9), and the connecting groove (20) is provided on the left and right sides of the connecting arm (15).

7. The silent guide rail according to claim 1, characterized in that: The slider (9) is provided with a protective buffer block (21) to prevent the inner rail (1) from colliding with the rotating arm (10) when it sinks. The protective buffer block (21) is located on one side of the buffer rib position (11).

8. The silent guide rail according to claim 1, characterized in that: The base (6) has a snap-fit ​​position (22) for installing the buffer cylinder (7) in the middle, and the push rod of the buffer cylinder (7) is snapped with the slider (9).

9. The silent guide rail according to claim 8, characterized in that: The base (6) is provided with mounting grooves (23) distributed on both sides of the snap-fit ​​position (22). The spring (8) is installed in the mounting groove (23) and the two elastic ends of the spring (8) are respectively fastened to the base (6) and the slider (9).

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