Anti-tip cushioned slide rail device for multi-tiered drawer

Abstract

The application discloses a kind of anti-tipping buffer slide rail devices for multilayer drawer, bottom plate is fixedly arranged at the rear end of fixed slide rail;Sliding plate is movably arranged on the bottom plate;Interlocking mechanism is used for the interlocking between adjacent slide rails, including locking assembly and transmission assembly, locking assembly and transmission assembly are detachably connected and vertically pass through fixed slide rail, any layer drawer is opened when interlocking mechanism is in locked state, other layer drawer cannot be opened;Buffer mechanism is used for buffering movable slide rail, including buffer assembly, needle assembly, bottom plate is connected with sliding plate by buffer assembly, needle assembly is swingingly arranged on sliding plate, needle assembly is synchronously slid on the bottom plate with sliding plate.The application connects each adjacent layer drawer of anti-tipping buffer slide rail by transmission assembly, when one drawer is drawn out of cabinet, other drawer cannot be drawn out, avoid multiple drawers being drawn out simultaneously, ensure that cabinet will not be damaged or hurt because of center of gravity inclination when all drawers are drawn out.

Description

Technical Field

[0001] This invention relates to the field of slide rail technology, and more particularly to an anti-tipping buffer slide rail device for multi-layer drawers. Background Technology

[0002] To improve space utilization, existing furniture generally has many layers of drawers, and many are equipped with drawer slides to make the drawers move more smoothly, such as office drawers, cabinets, display cases, toolboxes, and storage cabinets.

[0003] In existing technology, the various sets of slide rails within the cabinet move independently, and the drawers can be pulled out simultaneously. Since each drawer is heavy due to the need to hold items, pulling out two or more drawers can cause the cabinet to lose balance as the center of gravity shifts outwards, leading to the cabinet tipping over towards the side with the pulled-out drawers. This can damage the items inside and even endanger the user's safety, especially in households with infants or young children. If not properly supervised, a tilted cabinet can pose a risk of injury to children.

[0004] Current multi-drawer locking mechanisms only have the function of locking and unlocking all drawers at the same time. When taking items out of the drawers, all drawers are in an unlocked and openable state, which causes significant mutual interference. Each drawer can be opened freely without interlocking function, which can easily lead to multiple drawers sliding out at the same time, the cabinet losing its center of gravity, causing tilting, and items rolling all over the floor, resulting in unpleasant situations or safety accidents, causing damage or even injuring the user.

[0005] Therefore, developing an anti-tipping drawer slide that allows only one drawer to be opened at a time for furniture such as office drawers, cabinets, display cases, toolboxes, and storage cabinets is a problem that needs to be solved. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide an anti-tipping buffer slide device for multi-layer drawers.

[0007] To solve the above-mentioned technical problems, the present invention provides an anti-tipping buffer slide device for multi-layer drawers, including a first slide and a second slide disposed vertically on different drawer layers. The first slide and the second slide have the same structure, each including a fixed slide and a movable slide installed therein that can slide relative to it. The movable slide includes a middle rail and an inner rail, and further includes:

[0008] A base plate, which is fixedly mounted on the rear end of the fixed slide rail;

[0009] A sliding plate is movably mounted on the base plate. The sliding plate has an interlocking groove, which has a front guide opening section and a rear locking groove section. The guide opening section has a guide slope, and the height of the locking groove section is within the height range of the guide slope.

[0010] An interlocking mechanism for interlocking between adjacent upper and lower slide rails includes a locking component and a transmission component. The transmission component is fixedly connected to the locking component of the first slide rail and the second slide rail. The locking component has a hanging post on one side. The locking component passes through the fixed slide rail and positions the hanging post at the front of the inlet opening section.

[0011] The locking component is detachably connected to the transmission component and passes vertically through the fixed slide rail. When any drawer is opened, the interlocking mechanism is locked, and the drawers of other layers cannot be opened.

[0012] A buffer mechanism for buffering the moving slide rail includes a buffer assembly and a pin-shifting assembly. The base plate and the sliding plate are connected through the buffer assembly. The pin-shifting assembly is oscillatingly disposed on the sliding plate and is slidably associated with the moving slide rail.

[0013] The fixed slide rail has a first through hole and a second through hole perpendicular to the direction of movement. The first through hole and the second through hole are located on both sides of the front end of the base plate. The locking component passes through the first through hole and the second through hole. The locking component has two limiting strips on one side. The limiting strips are located between the first through hole and the second through hole to prevent the locking component from sliding out of the fixed slide rail.

[0014] The locking component has first teeth at both ends, and the transmission component has second teeth on its inner side. The first teeth and the second teeth mesh with each other. The first teeth have limiting grooves on both sides, and the second teeth have protrusions on both sides that cooperate with the limiting grooves.

[0015] The interlocking slide groove further includes a transition section in the middle. The inner side of the sliding plate has an inlet inclined surface, a transition inclined surface, an auxiliary inclined surface and two parallel surfaces. The inlet inclined surface and the inner sidewall of the sliding plate form the inlet opening section. The transition inclined surface, the inner sidewall of the sliding plate and the auxiliary inclined surface together form the transition section. The two parallel surfaces form a locking slide groove section. The inlet opening section, the transition section and the locking slide groove section are interconnected.

[0016] When any drawer is opened, the sliding plate of the anti-tipping buffer slide rail device of that layer slides outward along the inner rail. The hanging column passes through the inlet opening section and the transition section in sequence, and finally locks in the locking slide groove section. The transmission component is in a locked state. The hanging columns of the anti-tipping buffer slide rail devices of other layers are locked in the inlet opening section.

[0017] The buffer assembly includes a spring and a hydraulic rod. The movable ends of the spring and the hydraulic rod are connected to the sliding plate, and the fixed ends of the spring and the hydraulic rod are connected to the base plate. The spring is always in a stretched state, and the spring causes the sliding plate to tend to slide towards the end of the base plate.

[0018] The sliding plate has a third through hole at its rear end. The pin assembly is oscillatingly mounted on the sliding plate, and a guide post is provided at one end of the assembly, which passes through the third through hole.

[0019] The base plate has a guide groove with a locking position. The guide post slides in the guide groove. When the guide post slides to the locking position, the pin-shifting assembly deflects and the sliding plate stops sliding.

[0020] The sliding plate has buffer blocks on both sides of its top, and the middle rail contacts the buffer blocks.

[0021] Implementing this invention has the following beneficial effects:

[0022] Install anti-tipping buffer slides on the drawers of the cabinet. The anti-tipping buffer slides of adjacent layers in the cabinet are connected by a transmission component. When one drawer is pulled out, the other drawers cannot be pulled out. This achieves an interlocking function. Only one drawer can be pulled out at a time, and another drawer can only be opened after the opened drawer is closed. This can prevent the center of gravity of the entire cabinet from shifting forward and causing the cabinet to tilt when the drawer is pulled out with too much load.

[0023] When one drawer is pulled out of the cabinet, the interlocking components on the slide rails on both sides of the drawer slide longitudinally along the guide opening section and transition section into the locking slide section. The locking components of the other drawers are locked on the guide slope, preventing the sliding plate from moving and the corresponding slide rail from moving. This prevents other drawers from being pulled out of the cabinet when one drawer is pulled out, thus avoiding the simultaneous pulling out of multiple drawers. This ensures the center of gravity of the cabinet is maintained and prevents it from tilting and causing damage or injury when all drawers are pulled out. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0025] Figure 2This is a schematic diagram of the cooperative structure of the transmission component and interlock component according to Embodiment 1 of the present invention;

[0026] Figure 3 This is a schematic diagram of the fixed slide rail and the movable slide rail structure according to Embodiment 1 of the present invention;

[0027] Figure 4 This is a cross-sectional structural diagram of the transmission component and interlocking component according to Embodiment 1 of the present invention;

[0028] Figure 5 This is a schematic diagram of the cooperative structure of the transmission component and interlock component according to Embodiment 1 of the present invention;

[0029] Figure 6 This is a schematic cross-sectional view of the transmission component according to Embodiment 1 of the present invention;

[0030] Figure 7 This is a schematic diagram of the inner structure of the transmission assembly according to Embodiment 1 of the present invention;

[0031] Figure 8 This is a schematic diagram of the interlocking component structure according to Embodiment 1 of the present invention;

[0032] Figure 9 This is a schematic diagram of the buffer mechanism structure according to Embodiment 1 of the present invention;

[0033] Figure 10 This is a schematic diagram of the base plate structure of Embodiment 1 of the present invention;

[0034] Figure 11 This is a schematic diagram of the guide post structure according to Embodiment 1 of the present invention;

[0035] Figure 12 This is a schematic diagram of the interlocking slide structure according to Embodiment 1 of the present invention;

[0036] Figure 13 This is a schematic diagram of the outer surface structure of the base plate in Embodiment 2 of the present invention;

[0037] Figure 14 This is a schematic diagram of the pin-shifting assembly structure according to Embodiment 2 of the present invention;

[0038] Figure 15 This is a schematic diagram of the inner surface structure of the sliding plate in Embodiment 2 of the present invention;

[0039] Figure 16 This is a schematic diagram of the sliding plate and interlocking structure in Embodiment 3 of the present invention;

[0040] Figure 17 This is a schematic diagram of the pin-shifting assembly structure according to Embodiment 3 of the present invention;

[0041] Figure 18 This is a schematic diagram of the inner surface structure of the sliding plate in Embodiment 3 of the present invention;

[0042] In the diagram: 1. Interlocking mechanism, 11. Locking component, 111. First tooth, 112. Limiting groove, 113. Hanging post, 114. Limiting strip, 12. Transmission component, 121. Second tooth, 122. Protrusion, 2. Buffering mechanism, 21. Buffering component, 211. Spring, 212. Hydraulic rod, 22. Pin assembly, 221. Guide post, 3. Base plate, 31. Guide groove, 311. Locking position, 4. Sliding plate, 41. Interlocking slide groove, 411. Inlet opening section, 412. Transition section, 413. Locking slide groove section, 42. Inlet inclined surface, 43. Transition inclined surface, 44. Auxiliary inclined surface, 45. Parallel surface, 46. Third through hole, 47. Buffer block, 5. Fixed slide rail, 51. First through hole, 52. Second through hole, 6. Middle rail, 7. Inner rail. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0044] Example 1:

[0045] like Figures 1 to 12 As shown, an anti-tipping buffer slide device for multi-layer drawers includes a first slide and a second slide arranged vertically on different drawer layers. The first and second slides have the same structure, each including a fixed slide 5 and a movable slide installed inside it and slidable relative to it. The movable slide includes a middle slide 6 and an inner slide 7. The device also includes:

[0046] Base plate 3 is fixedly mounted on the rear end of fixed slide rail 5;

[0047] The sliding plate 4 is movably mounted on the base plate 3. The sliding plate 4 has an interlocking slide groove 41. The interlocking slide groove 41 has a front guide opening section 411 and a rear locking slide groove section 413. The guide opening section has a guide slope 42. The height of the locking slide groove section 413 is within the height range of the guide slope 42.

[0048] Interlocking mechanism 1 is used for interlocking between adjacent upper and lower slide rails. It includes a locking component 11 and a transmission component 12. The transmission component 12 is fixedly connected to the locking component 11 of the first slide rail and the second slide rail. The locking component 11 has a hanging post 113 on one side. The locking component 11 passes through the fixed slide rail 5 and makes the hanging post 113 located at the front of the inlet opening section.

[0049] The locking component 11 is detachably connected to the transmission component 12 and passes vertically through the fixed slide rail 5. When any drawer is opened, the interlocking mechanism 1 is locked, and other drawers cannot be opened.

[0050] The buffer mechanism 2 is used to buffer the moving slide rail. It includes a buffer assembly 21 and a pin-shifting assembly 22. The base plate 3 and the sliding plate 4 are connected through the buffer assembly 21. The pin-shifting assembly 22 is oscillatingly mounted on the sliding plate and is slidably associated with the moving slide rail.

[0051] like Figures 3 to 8 As shown, the fixed slide rail 5 has a first through hole 51 and a second through hole 52 perpendicular to the direction of movement. The first through hole 51 and the second through hole 52 are located on both sides of the front end of the base plate 3, respectively. The locking component 11 passes through the first through hole 51 and the second through hole 52. The locking component 11 has two limiting strips 114 on one side, which are located between the first through hole 51 and the second through hole 52. The limiting strips 114 can prevent the locking component 11 from sliding out of the first through hole 51 and the second through hole 52 when the locking component 11 slides. The two ends of the locking component 11 have first teeth 111, and the inner side of the transmission component 12 has second teeth 121. The first teeth 111 and the second teeth 121 mesh. The first teeth 111 and the second teeth 121 have limiting grooves 112 on both sides, and the second teeth 121 have protrusions 122 on both sides that cooperate with the limiting grooves 112. The interlocking slide 41 includes an inlet opening section 411, a transition section 412, and a locking slide section 413. The inner side of the sliding plate 4 has an inlet inclined surface 42, a transition inclined surface 43, an auxiliary inclined surface 44, and two parallel surfaces 45. The inlet inclined surface 42 and the inner wall of the sliding plate 4 form the inlet opening section 411. The transition inclined surface 43, the inner wall of the sliding plate 4, and the auxiliary inclined surface 44 together form the transition section 412. The two parallel surfaces 45 form the locking slide section 413. The inlet opening section 411, the transition section 412, and the locking slide section 413 are interconnected. When any drawer is opened, the sliding plate 4 of the anti-tipping buffer slide rail device of that layer slides outward along the inner rail 7. The hanging column 113 passes through the inlet opening section 411, the transition section 412 and the locking slide groove section 413 in sequence. The hanging column 113 is finally locked in the locking slide groove section 413, and the transmission component 12 is in the locked state. The hanging columns 113 of the anti-tipping buffer slide rail devices of other layers are fixed in the inlet opening section 411.

[0052] like Figure 9 As shown, the buffer assembly 21 includes a spring 211 and a hydraulic rod 212. The movable ends of the spring 211 and the hydraulic rod 212 are connected to the sliding plate 4, and the fixed ends of the spring 211 and the hydraulic rod 212 are connected to the base plate 3. The spring 211 is always in a stretched state, and the spring 211 causes the sliding plate 4 to have a tendency to slide towards the end of the base plate 3.

[0053] like Figures 10 to 12As shown, the sliding plate 4 has a third through hole 46 at its rear end. The pin-shifting assembly 22 is oscillatingly mounted on the sliding plate 4, with a guide post 221 at one end, which passes through the third through hole 46. Buffer blocks 47 are provided on both sides of the top of the sliding plate 4, and the middle rail 6 contacts the buffer blocks 47. The base plate 3 has a guide groove 31 with a locking position 311. The guide post 221 slides within the guide groove 31. When the guide post 221 slides to the locking position 311, the pin-shifting assembly 22 deflects, and the sliding plate 4 stops sliding.

[0054] The process of implementing anti-tipping buffer in this embodiment is as follows:

[0055] One of the drawers in the cabinet is in the open position. The guide posts 221 of the anti-tipping buffer slides on both sides of the drawer are located in the locking position 311, the hanging post 113 is located in the locking slide section 413, and the interlocking mechanism 1 is in the locked position. The other drawers are located in the guide opening section 411 and are stuck on the guide slope 42, and cannot be opened. When the drawer is closed, the inner rail 7 and the middle rail 6 slide inward. The middle rail 6 stops sliding after contacting the buffer block 47. The inner rail 7 continues to slide inward. The spring 211 generates tension, the hydraulic rod 212 generates resistance, and the pin assembly 22 deflects. At the same time, the guide post 221 leaves the locking position 311 and slides inward with the inner rail 7, driving the sliding plate 4 to slide inward. The hanging post 113 passes through the locking slide section 413 and the transition section 412 in sequence, finally reaching the guide opening section 411. At this time, the sliding plate 4 stops sliding, and the inner rail 7 and the middle rail 6 also stop sliding. At this time, due to the action of the transmission assembly 12, the interlocking mechanism 1 is unlocked, and the locking assembly 11 can slide up and down. The other drawers are in the openable state. If any drawer is opened outward, the inner rail 7 begins to slide outward. The spring 211 and the hydraulic rod 212 generate resistance, and the inner rail 7 stops sliding outward. The drawer cannot be easily opened. At this time, the drawer is in the closed state.

[0056] All drawers inside the cabinet are closed. Guide posts 221 are located in guide grooves 31, and hanging posts 113 are located in the inlet opening section 411. Pulling any drawer outward causes the inner rails 7 of the anti-tipping buffer slides on both sides of the drawer to pull the guide posts 221. The guide posts 221 drive the sliding plates 4 to slide outward. The hanging posts 113 pass through the inlet opening section 411 and the transition section 412 in sequence, and finally reach the locking slide section 413. At the same time, the guide posts 221 slide along the guide grooves 31 and finally reach the locking position 311, causing the pin assembly 22 to deflect. At this time, due to the action of the transmission assembly 12, the hanging posts 113 of the other drawers are still in the inlet opening section 411 and are stuck on the inlet ramp 42, making them unable to be opened. The inner rails 7 and the middle rail 6 continue to slide outward due to inertia, and the drawers are fully opened.

[0057] Example 2: Figure 13-15As shown, this embodiment of an anti-tipping buffer slide device for multi-layer drawers has the same main structure as Embodiment 1, but the difference is that: the hydraulic rod 212 is set in the middle of the base plate 3, and springs 211 are set on both sides of the base plate 3 to distribute the force when the anti-tipping buffer slide slide slide slides, making the slide slide slide more durable. The pin assembly 22 is triangular in shape, and the guide post 221 is also triangular in shape, so that the parts can be used interchangeably without redesigning the slide slide metal parts.

[0058] Example 3: Figure 16-18 As shown, this embodiment of an anti-tipping buffer slide device for multi-layer drawers has the same main structure as Embodiment 1, except that the pin assembly 22 is triangular and the guide post 221 is cylindrical, so that the parts can be universal without redesigning the slide metal parts.

[0059] The above-disclosed embodiments are merely some preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A tipping-proof buffer slide device for multi-layer drawers, characterized in that, Includes a first slide rail and a second slide rail arranged vertically on different drawer layers. The first and second slide rails have the same structure, each including a fixed slide rail (5) and a movable slide rail installed inside it and slidable relative to it. The movable slide rail includes a middle rail (6) and an inner rail (7). It also includes: The base plate (3) is fixedly installed at the rear end of the fixed slide rail (5); A sliding plate (4) is movably disposed on the base plate (3). The sliding plate (4) has an interlocking groove (41). The interlocking groove (41) has a front inlet opening section (411) and a rear locking groove section (413). The inlet opening section has an inlet slope (42). The height of the locking groove section (413) is within the height range of the inlet slope (42). An interlocking mechanism (1) is used for interlocking between adjacent upper and lower slide rails. It includes a locking component (11) and a transmission component (12). The transmission component (12) is fixedly connected to the locking component (11) of the first slide rail and the second slide rail. The locking component (11) has a hanging post (113) on one side. The locking component (11) passes through the fixed slide rail (5) and places the hanging post (113) at the front of the inlet opening section. The locking component (11) is detachably connected to the transmission component (12) and passes vertically through the fixed slide rail (5). When any drawer is opened, the interlocking mechanism (1) is locked, and the drawers of other layers cannot be opened. The buffer mechanism (2) is used to buffer the moving slide rail, including a buffer assembly (21) and a pin assembly (22). The base plate (3) and the sliding plate (4) are connected through the buffer assembly (21). The pin assembly (22) is oscillatingly disposed on the sliding plate. The pin assembly (22) is slidably associated with the moving slide rail.

2. The anti-tipping buffer slide device for multi-layer drawers according to claim 1, characterized in that, The fixed slide rail (5) has a first through hole (51) and a second through hole (52) perpendicular to the sliding direction. The first through hole (51) and the second through hole (52) are located on both sides of the front end of the base plate (3). The locking component (11) passes through the first through hole (51) and the second through hole (52). The locking component (11) has two limiting strips (114) on one side. The limiting strips (114) are located between the first through hole (51) and the second through hole (52) to prevent the locking component (11) from sliding out of the fixed slide rail (5).

3. The anti-tipping buffer slide device for multi-layer drawers according to claim 1, characterized in that, The locking component (11) has first teeth (111) at both ends, and the transmission component (12) has second teeth (121) on the inner side. The first teeth (111) and the second teeth (121) mesh with each other. The first teeth (111) are provided with limiting grooves (112) on both sides, and the second teeth (121) are provided with protrusions (122) on both sides to cooperate with the limiting grooves (112).

4. The anti-tipping buffer slide device for multi-layer drawers according to claim 1, characterized in that, The interlocking slide (41) also includes a transition section (412) in the middle. The inner side of the sliding plate (4) has an inlet inclined surface (42), a transition inclined surface (43), an auxiliary inclined surface (44) and two parallel surfaces (45). The inlet inclined surface (42) and the inner side wall of the sliding plate (4) form the inlet opening section (411). The transition inclined surface (43), the inner side wall of the sliding plate (4) and the auxiliary inclined surface (44) together form the transition section (412). The two parallel surfaces (45) form the locking slide section (413). The inlet opening section (411), the transition section (412) and the locking slide section (413) are interconnected.

5. The anti-tipping buffer slide device for multi-layer drawers according to claim 4, characterized in that, When any drawer is opened, the sliding plate (4) of the anti-tipping buffer slide rail device of that layer slides outward along the inner rail (7). The hanging column (113) passes through the inlet opening section (411) and the transition section (412) in sequence, and finally locks in the locking slide groove section (413). The transmission assembly (12) is in a locked state. The hanging columns (113) of the anti-tipping buffer slide rail devices of other layers are locked in the inlet opening section (411).

6. The anti-tipping buffer slide device for multi-layer drawers according to claim 1, characterized in that, The buffer assembly (21) includes a spring (211) and a hydraulic rod (212). The movable ends of the spring (211) and the hydraulic rod (212) are connected to the sliding plate (4), and the fixed ends of the spring (211) and the hydraulic rod (212) are connected to the base plate (3). The spring (211) is always in a stretched state, and the spring (211) causes the sliding plate (4) to have a tendency to slide towards the end of the base plate (3).

7. The anti-tipping buffer slide device for multi-layer drawers according to claim 1, characterized in that, The sliding plate (4) has a third through hole (46) at its rear end. The pin assembly (22) is oscillating on the sliding plate (4) and has a guide post (221) at one end. The guide post (221) passes through the third through hole (46).

8. The anti-tipping buffer slide device for multi-layer drawers according to claim 7, characterized in that, The base plate (3) has a guide groove (31), the guide groove (31) has a locking position (311), the guide post (221) slides in the guide groove (31), when the guide post (221) slides to the locking position (311), the pin assembly (22) deflects, and the sliding plate (4) stops sliding.

9. The anti-tipping buffer slide device for multi-layer drawers according to claim 1, characterized in that, The sliding plate (4) has buffer blocks (47) on both sides of its top, and the middle rail (6) touches the buffer blocks (47).

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