Automatic recycling structure and slide rail

Abstract

This utility model discloses an automatic recycling structure and a slide rail, belonging to the field of slide rails. The slider is slidably mounted on the guide seat. Elastic elements are connected to the guide seat and the slider respectively, so that the slider and the guide seat are elastically connected. The guide seat has a guide groove and a positioning groove communicating with the guide groove. The lever has a slide groove. The transmission column and the limiting block of the limiting element extend from both sides of the plate body respectively. The plate body is installed between the slider and the guide seat. The transmission column includes a column body and a limiting cover fixed to the column body. The column body passes through the slider and the slide groove. When the slide rail is in the closed state, the limiting block is located in the guide groove and the column body is located in the slide groove. When the slide rail is in the open state, the limiting block is located in the positioning groove and the column body is disengaged from the slide groove. The limiting cover is located on the side of the slide groove away from the slider. When the drawer deforms and causes the lever to move away from the slider along the width direction of the slide rail, the lever body abuts against the limiting cover to prevent the transmission column and the lever body from separating and avoid failure of the automatic recycling structure.

Description

Technical Field

[0001] This utility model relates to slide rails, and more particularly to an automatic retraction structure and a slide rail including the above-mentioned automatic retraction structure. Background Technology

[0002] Typically, three-section drawer slides utilize an automatic retraction mechanism to ensure the slides automatically retract when the drawer is closed, guaranteeing a secure and tight seal and preventing damage to the slides and drawer from excessive force during slamming. This effectively extends the drawer's lifespan. However, with existing automatic retraction mechanisms, when the drawer deforms after prolonged use, the inner rail, fixed to the drawer's outer wall, shifts along the width of the slide as the drawer deforms. The lever fixed to the inner rail moves along this width and separates from the limiting component, causing the automatic retraction mechanism to malfunction. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, one of the objectives of this utility model is to provide an automatic retraction structure in which the lever does not separate from the limiting member when the drawer is deformed.

[0004] In order to overcome the shortcomings of the existing technology, the second objective of this utility model is to provide a slide rail in which the lever will not separate from the limiting part when the drawer is deformed, thus avoiding the failure of the automatic retraction structure.

[0005] One of the objectives of this utility model is achieved through the following technical solution:

[0006] An automatic retrieval structure includes a guide seat, a slider, and an elastic element. The slider is slidably mounted on the guide seat. The elastic element is connected to both the guide seat and the slider, allowing the slider to be elastically connected to the guide seat. The guide seat has a guide groove and a positioning groove communicating with the guide groove. The automatic retrieval structure also includes a lever and a limiting element. The lever has a sliding groove. The limiting element includes a plate, a transmission column, and a limiting block. The transmission column and the limiting block extend from both sides of the plate. The plate is mounted between the slider and the guide seat. The transmission column includes a column body and a limiting cover fixed to the column body. The column body passes through the slider and the sliding groove. When the slide rail is in a closed state, the limiting block is located in the guide groove, and the column body is located in the sliding groove. When the slide rail is in an open state, the limiting block is located in the positioning groove, and the column body is disengaged from the sliding groove. The limiting cover is located on the side of the sliding groove away from the slider. The limiting cover abuts against the lever to prevent the lever from moving away from the slider along the width direction of the slide rail.

[0007] Furthermore, the limiting member also includes a rotating shaft, which is fixed to the plate body, and the limiting member is rotatably mounted on the slider or the guide seat via the rotating shaft.

[0008] Furthermore, the rotating shaft and the transmission column are located on the same side of the plate, the slider is provided with a rotating hole, and the rotating shaft is installed in the rotating hole so that the limiting member is rotatably installed on the slider.

[0009] Furthermore, both the guide groove and the positioning groove are straight, the positioning groove forms an angle with the guide groove, and the positioning groove is located at the end of the guide groove.

[0010] Furthermore, the groove includes a straight section and an inclined section, the inclined section being straight and extending from the end of the straight section to form an angle with the straight section.

[0011] Furthermore, the inclined portion forms an opening structure at the end away from the straight portion.

[0012] Furthermore, the paddle block is also provided with a recessed portion, and a tooth is formed between the recessed portion and the inclined portion.

[0013] Furthermore, the push block is also provided with a guide surface, which is located on the side of the recess away from the slide groove.

[0014] Furthermore, the lever includes a main body and a protrusion extending from the main body. The groove, the recess, and the guide surface are disposed on the main body. The protrusion surrounds the groove, the recess, and the guide surface, and the protrusion abuts against the edge of the limiting cover.

[0015] The second objective of this utility model is achieved by the following technical solution:

[0016] The slide rail includes an outer rail and an inner rail that is slidably mounted on the outer rail. The outer rail is fixed to the cabinet body, and the inner rail is fixed to the outer wall of the drawer. The slide rail also includes any of the above-mentioned automatic retraction structures. The guide seat is fixed to the outer rail, and the lever is fixedly connected to the inner rail.

[0017] Compared to existing technologies, the transmission column of the automatic recycling structure of this utility model includes a column body and a limiting cover fixed to the column body. The column body passes through the slider and the slide groove. When the slide rail is in the closed state, the limiting block is located in the guide groove, and the column body is located in the slide groove. When the slide rail is in the open state, the limiting block is located in the positioning groove, and the column body is disengaged from the slide groove. The limiting cover is located on the side of the slide groove away from the slider. The limiting cover abuts against the lever to prevent the lever from moving away from the slider along the width direction of the slide rail. Through the above design, when the drawer deforms and causes the lever to move away from the slider along the width direction of the slide rail, the lever abuts against the limiting cover, preventing the transmission column from separating from the lever and avoiding failure of the automatic recycling structure. Attached Figure Description

[0018] Figure 1 This is a perspective view of the slide rail of this utility model in its closed state;

[0019] Figure 2 for Figure 1 A 3D view of the automatic retraction structure of the slide rail;

[0020] Figure 3 for Figure 2 An exploded view of the automatic recycling structure;

[0021] Figure 4 for Figure 3 A 3D view of the levers of the automatic recycling structure;

[0022] Figure 5 for Figure 3 A three-dimensional view of the limiting component of the automatic recycling structure;

[0023] Figure 6 for Figure 2 A three-dimensional sectional view of the automatic recycling structure;

[0024] Figure 7 for Figure 2 Another three-dimensional sectional view of the automatic recycling structure;

[0025] Figure 8 This is a perspective view of the slide rail of this utility model in its open state;

[0026] Figure 9 for Figure 8 A 3D view of the automatic retraction structure of the slide rail;

[0027] Figure 10 for Figure 9 A three-dimensional sectional view of the automatic recycling structure.

[0028] In the diagram: 100, outer rail; 200, intermediate rail; 300, inner rail; 30, guide seat; 31, fixing part; 310, mounting groove; 32, guide part; 320, guide groove; 321, positioning groove; 322, gap; 40, slider; 41, rotating hole; 42, movable groove; 50, elastic element; 60, lever; 61, main body; 610, fixing hole; 611, sliding groove; 612, straight part; 613, inclined part; 614, recessed part; 615, protruding tooth; 616, guide surface; 62, first protrusion; 63, second protrusion; 70, limiting element; 71, plate; 72, transmission column; 720, column; 721, limiting cover; 73, rotating shaft; 74, limiting block. Detailed Implementation

[0029] 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 some embodiments of the present utility model, and not all embodiments. 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.

[0030] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or it can be fixed through another intermediate component. When a component is said to be "connected to" another component, it can be directly connected to the other component or it may be fixed through another intermediate component. When a component is said to be "set on" another component, it can be set directly on the other component or it may be set through another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] like Figure 1 As shown, the drawer slide of this utility model includes an outer rail 100, a middle rail 200, an inner rail 300, and an automatic retraction structure. The inner rail 300 is slidably connected to the outer rail 100 via the middle rail 200. The automatic retraction structure is installed between the inner rail 300 and the outer rail 100, and is used to automatically retract the inner rail 300 when the drawer slides are closed, thereby ensuring reliable and tight closing of the drawer and preventing impact damage to the drawer slides and drawer caused by excessive force when closing the drawer, thus effectively extending the service life of the drawer.

[0033] Please continue reading. Figure 2 The automatic retrieval structure includes a guide seat 30, a slider 40, an elastic element 50, a lever 60, and a limiting element 70. The guide seat 30 is fixed to the outer rail 100, and the slider 40 is slidably mounted on the guide seat 30. The slider 40 pulls the elastic element 50 to generate the power for automatic retrieval. Both ends of the elastic element 50 are fixed to the guide seat 30 and the slider 40 respectively, making the slider 40 elastically connected to the guide seat 30. The lever 60 is fixedly connected to the inner rail 300, and the movement of the inner rail 300 drives the lever 60 to move. The limiting element 70 is installed on the guide seat 30, the slider 40, and the lever 60, and is used to transmit the movement of the lever 60 to the slider 40.

[0034] Please continue reading. Figure 3 The guide seat 30 includes a fixing part 31 and a guide part 32 extending from the fixing part 31. The fixing part 31 is fixedly connected to the outer rail 100. The fixing part 31 is provided with a mounting groove 310 for fixing the elastic member 50. There are two mounting grooves 310, located on the upper and lower sides of the fixing part 31. The guide part 32 is straight and extends along the length of the slide rail. The guide part 32 is provided with a guide groove 320, a positioning groove 321, and a gap 322. The guide groove 320 is straight, and the positioning groove 321 is located near the end of the guide groove 320 away from the fixing part 31. The positioning groove 321 is straight and inclined, located at the top of the guide groove 320, and forms an angle with the guide groove 320. The positioning groove 321 is used to lock the limiting member 70, separating the limiting member 70 from the toggle block 60. The gap 322 is located at the top of the guide groove 320 near the fixed part 31. The gap 322 is parallel to the guide groove 320 and its end is connected. The existence of the gap 322 makes it easier to install the limiting block 74 in the guide groove 320.

[0035] The slider 40 is provided with a rotating hole 41 and a movable groove 42, the movable groove 42 being arc-shaped. The slider 40 is slidably mounted on the guide portion 32, and the rotating shaft 73 of the limiting member 70 is rotatably mounted on the rotating hole 41, causing the limiting member 70 to be rotatably mounted on the slider 40. In other embodiments, the limiting member 70 is rotatably mounted on the guide groove 320 of the guide portion 32. The movable groove 42 is used to mount the transmission column 72 of the limiting member 70, causing the limiting member 70 to drive the slider 40 to slide relative to the guide portion 32.

[0036] One end of the elastic element 50 is fixed to the mounting groove 310, and the other end of the elastic element 50 is fixedly connected to the slider 40. The slider 40 is elastically connected to the guide seat 30 through the elastic element 50. Specifically, there are two elastic elements 50, which are parallel to each other to ensure that the slider 40 is subjected to uniform force. The elastic element 50 provides the power for automatic retraction. In this embodiment, the elastic element 50 is a spring.

[0037] Please continue reading. Figure 4The lever 60 includes a main body 61 and a protrusion extending from one side of the main body 61. The main body 61 is provided with a fixing hole 610, a slide groove 611, a recess 614, and a guide surface 616. The fixing hole 610 is used to fix the lever 60 to the inner rail 300. The slide groove 611 includes a straight portion 612 and an inclined portion 613. The straight portion 612 extends in the same direction as the slide rail. The inclined portion 613 extends from the end of the straight portion 612 and is inclined to form an angle with the straight portion 612. The end of the inclined portion 613 has an open structure, which facilitates the disengagement of the transmission column 72 from the slide groove 611. A tooth 615 is formed between the recess 614 and the inclined portion 613. The tooth 615 can move the transmission column 72. The guide surface 616 is located at the end of the recess 614. The guide surface 616 and the recess 614 enable the slider 40 and the limiting member 70 to reset when the automatic recycling structure is recycled under the influence of external factors. A protrusion surrounds the groove 611, the recess 614, and the guide surface 616, and is used to abut against the edge of the limiting cover 721. Specifically, the protrusion includes a first protrusion 62 and a second protrusion 63. The first protrusion 62 is located at the bottom of the groove 611, the recess 614, and the guide surface 616, and the second protrusion 63 is located at the top of the groove 611.

[0038] Please continue reading. Figure 5 The limiting member 70 includes a plate 71, a transmission column 72, a rotating shaft 73, and a limiting block 74. The transmission column 72, rotating shaft 73, and limiting block 74 all extend from the plate 71. The transmission column 72 and limiting block 74 are located on opposite sides of the plate 71. The transmission column 72 transmits power from the lever 60 to the slider 40, and the limiting block 74 locks the limiting member 70, allowing it to separate from the lever 60. The rotating shaft 73 allows the limiting member 70 to be rotatably mounted on the slider 40 or the guide seat 30. Specifically, when the rotating shaft 73 and the transmission column 72 are on the same side, the limiting member 70 is rotatably mounted on the slider 40. When the rotating shaft 73 and the limiting block 74 are on the same side, the limiting member 70 is rotatably mounted on the guide groove 320. The transmission column 72 includes a column body 720 and a limiting cover 721. The column body 720 extends from the plate body 71, and the limiting cover 721 is located at the end of the column body 720. The cross-sectional area of ​​the limiting cover 721 is larger than that of the column body 720. In this embodiment, both the limiting cover 721 and the column body 720 are cylindrical and coaxially arranged, and the diameter of the limiting cover 721 is larger than the diameter of the column body 720.

[0039] Please continue reading. Figure 6 as well as Figure 7When assembling the slide rail, the fixing part 31 of the guide seat 30 is fixed to the outer rail 100, the intermediate rail 200 is slidably installed on the outer rail 100, and the inner rail 300 is slidably installed on the intermediate rail 200. The slider 40 is slidably installed on the guide part 32, and one end of the elastic member 50 is fixed to the mounting groove 310, and the other end is fixed to the slider 40, so that the slider 40 is elastically installed on the guide seat 30. The plate 71 of the limiting member 70 is located between the slider 40 and the guide part 32, the rotating shaft 73 of the limiting member 70 is rotatably installed in the rotating hole 41, the limiting block 74 of the limiting member 70 is located in the guide groove 320, the column 720 of the transmission column 72 extends into the movable groove 42 and the sliding groove 611, and the lever 60 is fixed to the inner rail 300 through the fixing hole 610.

[0040] When using slide rails, such as Figure 1 , Figure 6 as well as Figure 7 As shown, the slide rail is in the closed state, and the drawer is also in the closed state. At this time, the limiting block 74 is located in the guide groove 320, and the column 720 of the transmission column 72 is located at the intersection of the straight part 612 and the inclined part 613 of the slide groove 611. When it is necessary to open the drawer, pull the drawer forward, and the inner rail 300 fixed to the outer wall of the drawer slides forward simultaneously. The toggle block 60 fixed to the inner rail 300 slides forward. Since the column 720 of the transmission column 72 is located at the intersection of the straight part 612 and the inclined part 613 of the slide groove 611 and the limiting block 74 is located in the guide groove 320, when the toggle block 60 slides forward, the side wall of the inclined part 613 drives the transmission column 72 to move forward, thereby causing the slider 40 to slide forward relative to the guide part 32, the elastic element 50 is stretched, and the limiting block 74 slides in the guide groove 320. When the limiting block 74 moves to the end of the straight section 612, it can no longer move forward. At this time, the side wall of the inclined section 613 pushes the transmission column 72 upward, causing the limiting member 70 to rotate relative to the slider 40. The limiting block 74 rotates into the positioning groove 321, locking the limiting member 70 to the guide seat 30, thereby locking the slider 40 relative to the guide seat 30. At this time, the elastic member 50 is in a fully stretched state, such as... Figure 8 , Figure 9 as well as Figure 10 As shown, when the inner rail 300 moves further forward, the limiting member 70 disengages from the opening at the end of the inclined portion 613, and then continues to pull the inner rail 300 forward until the drawer is fully opened.

[0041] When the drawer needs to be closed, push the drawer backward. The inner rail 300 moves backward in sync until the opening of the inclined part 613 of the lever 60 engages with the column 720 of the limiting member 70. At this time, the limiting block 74 is located in the positioning groove 321. Continue to push the inner rail 300 backward. The side wall of the inclined part 613 pushes the transmission column 72 downward, causing the limiting member 70 to rotate in the opposite direction to the slider 40. The limiting block 74 rotates to the guide groove 320. At this time, the limiting member 70 and the slider 40 are unlocked relative to the guide seat 30. Under the restoring force of the elastic member 50, the elastic member 50 pulls the slider 40, the limiting member 70, the lever 60, and the inner rail 300 to automatically retract.

[0042] When the drawer is fully extended, the limiting block 74 of the limiting member 70 is located in the positioning groove 321. When affected by external vibration or other factors, the limiting member 70 may rotate, causing the limiting block 74 to disengage from the positioning groove 321. At this time, under the restoring force of the elastic member 50, the elastic member 50 pulls the slider 40, the limiting member 70, the toggle block 60, and the inner rail 300 to automatically retract. In this situation, closing the drawer will prevent the inner rail 300 from automatically retracting. To resolve this, simply push the inner rail 300 backward until the guide surface 616 at the rear end of the lever 60 contacts the transmission column 72 of the limiting member 70. Continue pushing the inner rail 300 backward; under the action of the guide surface 616, the transmission column 72 slides into the recess 614 of the lever 60. Pulling the inner rail 300 forward again will cause the transmission column 72 to be pulled forward along with the recess 614, and the slider 40 to be pulled forward synchronously with the limiting member 70. When the limiting member 70 reaches the end of the straight section 612, the limiting block 74 can no longer move forward. At this point, the side wall of the recess 614 pushes the transmission column 72 upward, causing the limiting member 70 to rotate relative to the slider 40. The limiting block 74 rotates to the positioning groove 321, thus completing the overall reset of the slider 40 and the limiting member 70. Pushing the inner rail 300 backward will then achieve automatic retraction of the inner rail 300.

[0043] When the drawer deforms, the outer wall of the drawer moves inward along the width of the slide rail. At this time, the outer wall of the drawer drives the lever 60 to move away from the slider 40 along the width of the slide rail via the inner rail 300. The lever 60 then contacts the limit cover 721 to prevent the transmission column 72 from separating from the lever 60 and to avoid failure of the automatic retraction structure.

[0044] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of this utility model, and all of these fall within the protection scope of this utility model.

Claims

1. An automatic recycling structure, comprising a guide seat, a slider, and an elastic element, wherein the slider is slidably mounted on the guide seat, and the elastic element is connected to both the guide seat and the slider, thereby elastically connecting the slider to the guide seat, characterized in that: The guide seat is provided with a guide groove and a positioning groove communicating with the guide groove. The automatic retrieval structure also includes a lever and a limiting member. The lever is provided with a sliding groove. The limiting member includes a plate, a transmission column, and a limiting block. The transmission column and the limiting block extend from both sides of the plate. The plate is installed between the slider and the guide seat. The transmission column includes a column body and a limiting cover fixed to the column body. The column body passes through the slider and the sliding groove. When the slide rail is in the closed state, the limiting block is located in the guide groove, and the column body is located in the sliding groove. When the slide rail is in the open state, the limiting block is located in the positioning groove, and the column body is disengaged from the sliding groove. The limiting cover is located on the side of the sliding groove away from the slider. The limiting cover abuts against the lever to prevent the lever from moving away from the slider along the width direction of the slide rail.

2. The automatic recycling structure according to claim 1, characterized in that: The limiting component also includes a rotating shaft, which is fixed to the plate body. The limiting component is rotatably mounted on the slider or the guide seat via the rotating shaft.

3. The automatic recycling structure according to claim 2, characterized in that: The rotating shaft and the transmission column are located on the same side of the plate. The slider is provided with a rotating hole, and the rotating shaft is installed in the rotating hole so that the limiting member is rotatably installed on the slider.

4. The automatic recycling structure according to claim 1, characterized in that: Both the guide groove and the positioning groove are straight, the positioning groove forms an angle with the guide groove, and the positioning groove is located at the end of the guide groove.

5. The automatic recycling structure according to claim 1, characterized in that: The groove includes a straight section and an inclined section. The inclined section is straight and extends from the end of the straight section, forming an angle with the straight section.

6. The automatic recycling structure according to claim 5, characterized in that: The inclined portion forms an opening structure at the end away from the straight portion.

7. The automatic recycling structure according to claim 5, characterized in that: The lever block is also provided with a recessed portion, and a tooth is formed between the recessed portion and the inclined portion.

8. The automatic recycling structure according to claim 7, characterized in that: The push block is also provided with a guide surface, which is located on the side of the recess away from the slide groove.

9. The automatic recycling structure according to claim 8, characterized in that: The lever includes a main body and a protrusion extending from the main body. The groove, the recess, and the guide surface are disposed on the main body. The protrusion surrounds the groove, the recess, and the guide surface. The protrusion abuts against the edge of the limiting cover.

10. A drawer slide, comprising an outer rail and an inner rail slidably mounted on the outer rail, wherein the outer rail is fixed to the cabinet body and the inner rail is fixed to the outer wall of the drawer, characterized in that: The slide rail further includes an automatic retraction structure as described in any one of claims 1-9, wherein the guide seat is fixed to the outer rail, and the lever is fixedly connected to the inner rail.

Images