Automatic pull-in device for slide rails

Abstract

The utility model provides an automatic pull -in device for slide rail, including main frame, buffer jar, driving part, exciter, spring, buffer jar, spring installs on the main frame respectively, and the two elastic ends of spring are buckled on the main frame and driving part respectively, and the main frame is equipped with the guide groove for the sliding rotation of driving part to be connected or separated with exciter, and the push rod of buffer jar is equipped with the joint head, and driving part is equipped with the connection sliding groove department that rotates along the guide groove and rotates relative joint head to be decoupled with joint head, and the connection sliding groove department is opened in the connection end of driving part. High, and realize buffer jar not to participate in the rotation of driving part, avoid the noise that produces from the multiple collision, practical and reliable, improve the use experience of product.

Description

Technical Field

[0001] This utility model relates to the field of slide rail technology, specifically an automatic pull-in device for slide rails. 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 existing slide rail is equipped with an automatic pull-in device, which includes a main frame, a drive component, a buffer cylinder, an actuator, and a spring. The main frame is mounted on the fixed rail of the slide rail, the actuator is mounted on the movable rail, and the buffer cylinder and spring are respectively mounted on the main frame. The two elastic ends of the spring are fastened to the drive component and the main frame, and the drive component slides on the main frame. Under the action of the spring, the inner rail automatically closes. The drive component and the buffer cylinder are typically engaged using a snap-fit ​​block. The buffer cylinder provides a cushioning function during the closing process of the inner rail.

[0004] However, when the inner rail closes, it drives the exciter to move. The driven component is impacted by the exciter and accelerates rapidly, causing it to rotate. During this rotation, the buffer cylinder is compressed and applies a torque in the opposite direction to the rotation of the driven component. At this point, the driven component has not yet completed its rotation, and the exciter and the large mass object connected to it are firmly connected, causing the driven component to decelerate rapidly and generate severe vibration. Because the buffer cylinder participates in the rotation of the driven component and the process of fastening the exciter, the driven component collides multiple times with the exciter and the main frame of the device, producing noise and affecting the user experience. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic pull-in device for slide rails. It has a simple structure, high operational stability, and ensures that the buffer cylinder does not participate in the rotation of the drive components, thus avoiding noise caused by multiple collisions. It is practical, reliable, and improves the user experience of the product.

[0006] The purpose of this invention is achieved as follows: An automatic pull-in device for a slide rail includes a main frame, a buffer cylinder, a drive component, an exciter, and a spring. The buffer cylinder and the spring are respectively mounted on the main frame, and the two elastic ends of the spring are respectively fastened to the main frame and the drive component. The main frame is provided with a guide groove for the drive component to slide and rotate to engage or disengage with the exciter. The push rod of the buffer cylinder is provided with a connecting head, and the drive component is provided with a connecting slide groove for rotating along the guide groove while rotating relative to the connecting head to decouple from the connecting head. The connecting slide groove is located at the connecting end of the drive component.

[0007] Based on the above optimization, the connecting slide is set as an open arc slide, and the connecting head is fitted into the open arc slide and can rotate clockwise or counterclockwise within the open arc slide.

[0008] Based on the above optimization, the connecting head is set as a spherical connecting part, and the end diameter of the spherical connecting part is larger than the port size of the open arc groove part.

[0009] Based on the above optimization, the guide groove includes a linear groove for the drive component to move linearly left and right under the drive of the exciter, and a corner groove for the drive component to rotate and engage or disengage with the exciter.

[0010] Based on the above optimization, the corner slot is connected to the end of the straight slot and forms a right-angled guide slot.

[0011] Based on the above optimization, the swing end of the drive component is provided with a positioning post that is slidably connected to the guide groove and a snap-fit ​​position that is engaged or disengaged from the exciter.

[0012] Based on the above optimization, the main frame is provided with an open guide groove for the exciter to slide into and engage with the drive component or for the exciter to slide out and separate from the drive component.

[0013] The advantages of this invention are as follows: In the automatic pull-in device with this structure, when the driving component is impacted by the exciter and rapidly accelerates, its sliding groove decouples it from the connecting head of the buffer cylinder during rotation, preventing the buffer cylinder from participating in the rotation of the driving component. Then, the driving component engages the exciter, and after completing the above actions, the buffer cylinder applies resistance to the driving component, achieving smooth excitation of the automatic pull-in device. The structure is simple, the transmission stability is high, it effectively avoids noise caused by multiple collisions, is practical and reliable, and enhances the user experience. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.

[0015] Figure 2 This is a structural schematic diagram of a preferred embodiment of the present invention from another angle.

[0016] Figure 3 This is a cross-sectional view of a preferred embodiment of the present invention.

[0017] Figure 4 This is a preferred embodiment of the present utility model. Figure 3 A magnified view of a portion of the image.

[0018] Figure 5 This is an exploded view of a preferred embodiment of the present invention. Detailed Implementation

[0019] The present invention will now be further described with reference to the accompanying drawings.

[0020] According to the appendix Figures 1 to 5 As shown, the automatic pull-in device for the slide rail of this utility model includes a main frame 1, a buffer cylinder 2, a driving component 3, an exciter 4, and a spring 5. The buffer cylinder 2 and the spring 5 are respectively mounted on the main frame 1. The two elastic ends of the spring 5 are respectively fastened to the main frame 1 and the driving component 3. The main frame 1 is provided with a guide groove 6 for the driving component 3 to slide and rotate to engage or disengage with the exciter 4. The push rod of the buffer cylinder 2 is provided with a connecting head 21. The driving component 3 is provided with a connecting slide groove 31 for rotating along the guide groove 6 while rotating relative to the connecting head 21 to decouple from the connecting head 21. The connecting slide groove 31 is opened at the connecting end of the driving component 3.

[0021] By using the connecting groove 31 of the drive component 3, the drive component 3 is decoupled from the connecting head 21 of the buffer cylinder 2 during rotation, so that the buffer cylinder 2 does not participate in the rotation of the drive component 3. The structure is simple, the transmission stability is high, and it effectively avoids noise caused by multiple collisions. It is practical and reliable, and improves the user experience of the product.

[0022] Reference Figures 1 to 3 As shown, in further detail, the connecting groove 31 is configured as an open arc groove, and the connecting head 21 is fitted into the open arc groove and can rotate clockwise or counterclockwise within the open arc groove.

[0023] The connecting head 21 is configured as a spherical connecting part, and the end diameter of the spherical connecting part is larger than the port size of the open arc groove part.

[0024] In addition, the guide groove 6 includes a straight groove 61 for the drive member 3 to move linearly left and right under the drive of the exciter 4 and a corner groove 62 for the drive member 3 to rotate and engage or disengage with the exciter 4; the corner groove 62 is connected to the end of the straight groove 61 and forms a right-angled guide groove 6.

[0025] Meanwhile, the swing end of the drive component 3 is provided with a positioning post 32 that is slidably connected to the guide groove 6 and a snap-fit ​​position 33 that is engaged or disengaged from the exciter 4.

[0026] Furthermore, the main frame 1 is provided with an open guide groove 11 for the exciter 4 to slide into and engage with the drive member 3 or for the exciter 4 to slide out and separate from the drive member 3.

[0027] When the inner rail is closed, the exciter 4 moves inward along the open guide groove 11. When the exciter 4 strikes the upper end of the drive component 3 at a speed V, the drive component 3 rotates along the corner groove 62 and simultaneously rotates clockwise relative to the spherical connecting part of the buffer cylinder 2, then moves along the straight groove 61. Due to the cooperation between the connecting head 21 and the connecting slide part 31 of this structure, there is no relative movement between the connecting head 21 of the buffer cylinder 2 and the main frame 1, that is, the buffer cylinder 2 does not affect the rotation of the drive component 3 until the drive component 3 completes its rotation along the corner groove 62 and then engages the exciter 4. That is, after the drive component 3 is firmly connected to the exciter 4 and the large mass object connected to the exciter 4, the buffer cylinder 2 is compressed again under the pulling action of the spring 5. The drive component 3, the exciter 4, and the large mass object connected to the exciter 4 decelerate under the resistance provided by the buffer cylinder 2 until the pulling force provided by the spring 5 is greater than the resistance provided by the buffer cylinder 2. The drive component 3, the exciter 4, and the large mass object connected to the exciter 4 then accelerate again until the maximum stroke. It has a simple structure, high transmission stability, and reduces noise generation, thus improving the quality of use.

[0028] The above specific embodiments are only specific implementations of the present utility model with better effects. Any structure that is the same as or equivalent to the automatic pull-in device for the slide rail of the present utility model is within the protection scope of the present utility model.

Claims

1. An automatic pull-in device for a slide rail, comprising a main frame (1), a buffer cylinder (2), a drive member (3), an exciter (4), and a spring (5), wherein the buffer cylinder (2) and the spring (5) are respectively mounted on the main frame (1), and the two elastic ends of the spring (5) are respectively fastened to the main frame (1) and the drive member (3), wherein the main frame (1) is provided with a guide groove (6) for the drive member (3) to slide and rotate to engage or disengage with the exciter (4), characterized in that: The push rod of the buffer cylinder (2) is provided with a connecting head (21), and the drive member (3) is provided with a connecting slide (31) for decoupling from the connecting head (21) while rotating along the guide groove (6). The connecting slide (31) is located at the connecting end of the drive member (3).

2. The automatic pull-in device for the slide rail according to claim 1, characterized in that: The connecting groove (31) is an open arc groove, and the connecting head (21) is fitted into the open arc groove and can rotate clockwise or counterclockwise within the open arc groove.

3. The automatic pull-in device for the slide rail according to claim 2, characterized in that: The connecting head (21) is configured as a spherical connecting part, and the end diameter of the spherical connecting part is larger than the port size of the open arc groove part.

4. The automatic pull-in device for the slide rail according to claim 1, characterized in that: The guide groove (6) includes a straight groove (61) for the drive member (3) to move linearly left and right under the drive of the exciter (4) and a corner groove (62) for the drive member (3) to rotate and engage or disengage with the exciter (4).

5. The automatic pull-in device for the slide rail according to claim 4, characterized in that: The corner slot (62) is connected to the end of the straight slot (61) and forms a right-angled guide slot (6).

6. The automatic pull-in device for the slide rail according to claim 1, characterized in that: The swing end of the drive member (3) is provided with a positioning post (32) that is slidably connected to the guide groove (6) and a snap-fit ​​position (33) that is engaged or disengaged from the exciter (4).

7. The automatic pull-in device for the slide rail according to claim 4, characterized in that: The main frame (1) is provided with an open guide groove (11) for the exciter (4) to slide into and engage with the drive member (3) or for the exciter (4) to slide out and separate from the drive member (3).

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