Anti-tip slide rail device for multi-layer drawer

Abstract

The application discloses a kind of anti-tipping slide rail devices for multilayer drawer, including: bottom plate, sliding plate, dial needle component, interlocking mechanism, guide slot is equipped with locking position, sliding plate has interlocking sliding slot, interlocking sliding slot includes the import opening section of front portion and the locking sliding slot section of rear portion, locking assembly one side has hanging column, locking assembly passes through fixed slide rail, and make hanging column be located import opening section front portion, when guide column slides to locking position, dial needle component is deflected, sliding plate stops sliding, hanging column is locked in locking sliding slot section, any layer drawer is opened when interlocking mechanism is in locked state, other layer drawer cannot be opened.The application, through the linkage between bottom plate, sliding plate, dial needle component and interlocking mechanism, parts are simplified, error is not easy to appear, production cost and use cost are low, while realizing the opening and closing of single drawer basis, the interlocking function between multilayer drawer is also realized, more conform to daily use habit.

Description

Technical Field

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

[0002] The drawer unit has multiple drawers, each heavy due to the weight of the items inside. If two or more drawers are pulled out, the center of gravity shifts outwards, causing the drawer unit to tip over towards the side with the pulled-out drawers, potentially leading to accidents or even personal injury. Current multi-drawer locking mechanisms only lock and unlock all drawers simultaneously. When retrieving items, all drawers are unlocked and openable. Opening one drawer can easily cause multiple drawers to slide out simultaneously, resulting in the unit losing its balance, tipping over, and items spilling everywhere, causing damage or even injury.

[0003] With the frequent occurrence of dresser tipping incidents, the safety of people, especially children, is threatened, and the safety of dresser use is receiving increasing attention.

[0004] On April 18, 2023, the applicant filed a patent application with patent number 202310413394.2, entitled "Anti-tipping Buffer Slide Slide Device for Multi-Layer Drawers." This patent details an anti-tipping buffer slide slide device for multi-layer drawers, comprising: a base plate fixedly mounted on the rear end of a fixed slide rail; a sliding plate movably mounted on the base plate; an interlocking mechanism for interlocking between adjacent upper and lower slide rails, including a locking component and a transmission component, the locking component and transmission component being detachably connected and perpendicularly passing through the fixed slide rail; and a buffering mechanism for buffering the moving slide rail, including a buffering component and a pin-shifting component. The base plate and the sliding plate are connected via the buffering component, and the pin-shifting component is oscillatingly mounted on the sliding plate, sliding synchronously with the sliding plate on the base plate. However, in actual production and use, it was found that this technical solution has many components, increasing production and usage costs, and the buffering function is not necessary in some situations.

[0005] As the applicant further promotes and implements this innovative technical solution, a further optimized technical solution has been proposed based on this innovative technical solution. Summary of the Invention

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

[0007] To solve the above-mentioned technical problems, the present invention provides an anti-tipping drawer slide device for multi-layer drawers, including a first slide and a second slide disposed vertically on different drawer layers. The first and second slides 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: A base plate is fixedly mounted on the rear end of the fixed slide rail. The base plate has a guide groove, and a locking position is provided on the guide groove. A sliding plate and a pin-shifting assembly are provided. The sliding plate is movably mounted on the base plate and has an interlocking groove. The interlocking groove includes a front inlet opening section and a rear locking groove section. A first through hole is provided at the rear end of the sliding plate. The pin-shifting assembly is oscillatingly mounted on the sliding plate. A guide post is provided at one end of the pin-shifting assembly. The guide post passes through the first through hole and one end of the guide post slides in the guide groove. An interlocking mechanism for interlocking between adjacent upper and lower slide rails includes a locking component and a transmission component. 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 guide opening section. The locking component is detachably connected to the transmission component and passes perpendicularly through the fixed slide rail. When the guide post slides to the locking position, the pin assembly deflects, the sliding plate stops sliding, and the hanging post is locked in the locking groove section. When any drawer is opened, the interlocking mechanism is in a locked state, and the drawers of other layers cannot be opened.

[0008] Preferably, it also includes a locking piece, which is fixedly disposed at the rear end of the inner rail. The locking piece has a groove, which is linked with the guide post to drive the sliding plate to slide.

[0009] Preferably, the inner side of the sliding plate has an inlet inclined surface, an auxiliary inclined surface, an inner concave surface, and parallel first locking inclined surface and second locking inclined surface. The inlet inclined surface and the auxiliary inclined surface form the inlet opening section. The first locking inclined surface, the second locking inclined surface, and the inner concave surface together form the locking groove section. The inlet opening section and the locking groove section are interconnected.

[0010] Preferably, when any drawer is opened, the sliding plate of the anti-tipping slide rail device of that layer slides outward along the inner rail, and the hanging post is locked in the concave surface of the locking slide groove after passing through the guide opening section. The transmission component is in a locked state, and the hanging posts of the anti-tipping slide rail devices of other layers are locked in the guide opening section.

[0011] Preferably, the fixed slide rail has a second through hole and a third through hole perpendicular to the sliding direction. The second through hole and the third through hole are located on both sides of the front end of the base plate. The locking component passes through the second through hole and the third through hole. The locking component has two limiting strips on one side. The limiting strips are located between the second through hole and the third through hole to prevent the locking component from sliding out of the fixed slide rail.

[0012] Preferably, the locking component has first teeth at both ends, and the transmission component has second teeth on its inner side, with the first teeth meshing with the second teeth; limiting grooves are provided on both sides of the first teeth, and protrusions are provided on both sides of the second teeth to cooperate with the limiting grooves.

[0013] Preferably, buffer blocks are provided on both sides of the top of the sliding plate, and the middle rail contacts the buffer blocks.

[0014] Implementing this invention has the following beneficial effects: This invention, through the linkage between the base plate, sliding plate, pin assembly and interlocking mechanism, simplifies the parts, reduces the likelihood of errors, and lowers production and usage costs. While realizing the basic opening and closing of a single drawer, it also achieves the interlocking function between multiple drawers, which is more in line with daily usage habits. Anti-tipping slide rails are installed on the drawers of the cabinet. The anti-tipping slide rails of adjacent layers in the cabinet are connected by a transmission component. When one drawer is opened, the other drawers cannot be opened. This achieves an interlocking function. Only one drawer can be opened at a time, and another drawer can only be opened after the opened drawer is closed. This can prevent multiple drawers from opening at the same time when the drawers are overloaded, causing the center of gravity of the entire cabinet to shift forward and the cabinet to tilt. When one drawer is pulled out of the cabinet, the interlocking components on the slide rails on both sides of the drawer move along the guide opening section to the locking slide section. The locking components cannot move up or down, and the interlocking mechanisms of all drawers are connected together. The locking components of other drawers also cannot move up or down. The locking components of other drawers are stuck on the guide slope, preventing the sliding plate from moving and the corresponding slide rail from moving. This ensures that when one drawer is pulled out of the cabinet, other drawers cannot be pulled out, preventing multiple drawers from being pulled out at the same time. This ensures the center of gravity of the cabinet and prevents it from tilting and causing damage or injury when all drawers are pulled out. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the cooperative structure of the transmission component and the interlocking component according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the fixed slide rail and the movable slide rail structure according to an embodiment of the present invention; Figure 4This is a cross-sectional structural diagram of the transmission assembly and interlock assembly according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the cooperative structure of the transmission component and the interlocking component according to an embodiment of the present invention; Figure 6 This is a schematic cross-sectional view of the transmission component according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the inner structure of the transmission assembly according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the interlocking component structure according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the base plate structure according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the guide post structure according to an embodiment of the present invention; Figure 11 This is a schematic diagram of the interlocking slide groove structure according to an embodiment of the present invention; In the diagram: 1. Base plate; 11. Guide groove; 111. Locking position; 2. Sliding plate; 21. Interlocking groove; 211. Inlet opening section; 2111. Inlet inclined surface; 2112. Auxiliary inclined surface; 212. Locking groove section; 2121. First locking inclined surface; 2122. Second locking inclined surface; 2123. Concave surface; 22. First through hole; 23. Buffer block; 3. Pin assembly; 31. Guide post; 4. Interlocking mechanism; 41. Locking assembly; 411. Hanging post; 412. Limiting strip; 413. First tooth; 414. Limiting groove; 42. Transmission assembly; 421. Second tooth; 422. Protrusion; 5. Locking piece; 51. Groove; 6. Fixed slide rail; 61. Second through hole; 62. Third through hole; 7. Middle rail; 8. Inner rail. Detailed Implementation

[0016] 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.

[0017] like Figures 1 to 11 As shown, an anti-tipping drawer 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 6 and a movable slide installed inside it and slidable relative to it. The movable slide includes a middle slide 7 and an inner slide 8. The device also includes: Base plate 1 is fixedly installed at the rear end of fixed slide rail 6. Base plate 1 has guide groove 11 and a locking position 111 is provided on guide groove 11. The sliding plate 2 and the pin-shifting assembly 3 are movably mounted on the base plate 1. The sliding plate 2 has an interlocking groove 21, which includes a front inlet opening section 211 and a rear locking groove section 212. The rear end of the sliding plate 2 is provided with a first through hole 22. The pin-shifting assembly 3 is oscillatingly mounted on the sliding plate 2. One end of the pin-shifting assembly 3 is provided with a guide post 31, which passes through the first through hole 22 and slides in the guide groove 11. Interlocking mechanism 4 is used for interlocking between adjacent upper and lower slide rails. It includes locking component 41 and transmission component 42. Locking component 41 has a hanging post 411 on one side. Locking component 41 passes through fixed slide rail 6 and positions hanging post 411 in front of guide opening section 211. Locking component 41 is detachably connected to transmission component 42 and passes vertically through fixed slide rail 6. When guide post 31 slides to locking position 111, pin assembly 3 deflects, slide plate 2 stops sliding, and hanging post 411 is locked in locking slide groove section 212. When any drawer is opened, interlocking mechanism 4 is in a locked state, and other drawers cannot be opened.

[0018] It also includes a locking piece 5, which is fixedly installed at the rear end of the inner rail 8. The locking piece 5 has a groove 51, which is linked with the guide post 31 to drive the sliding plate 2 to slide.

[0019] The inner side of the sliding plate 2 has an inlet inclined surface 2111, an auxiliary inclined surface 2112, an inner concave surface 2123, and parallel first locking inclined surface 2121 and second locking inclined surface 2122. The inlet inclined surface 2111 and the auxiliary inclined surface 2112 form an inlet opening section 211. The first locking inclined surface 2121, the second locking inclined surface 2122, and the inner concave surface 2123 together form a locking groove section 212. The inlet opening section 211 and the locking groove section 212 are interconnected.

[0020] When any drawer is opened, the sliding plate 2 of the anti-tipping slide rail device of that layer slides outward along the inner rail 8. After the hanging column 411 passes through the guide opening section 211, it is locked in the concave surface 2123 of the locking slide groove section 212. The transmission component 42 is in a locked state. The hanging columns 411 of the anti-tipping slide rail devices of other layers are locked in the guide opening section 211.

[0021] The fixed slide rail 6 has a second through hole 61 and a third through hole 62 perpendicular to the sliding direction. The second through hole 61 and the third through hole 62 are located on both sides of the front end of the base plate 1. The locking component 41 passes through the second through hole 61 and the third through hole 62. The locking component 41 has two limiting strips 412 on one side. The limiting strips 412 are located between the second through hole 61 and the third through hole 62 to prevent the locking component 41 from sliding out of the fixed slide rail 6.

[0022] The locking component 41 has first teeth 413 at both ends, and the transmission component 42 has second teeth 421 on the inner side. The first teeth 413 and the second teeth 421 mesh with each other. The first teeth 413 are provided with limiting grooves 414 on both sides, and the second teeth 421 are provided with protrusions 422 on both sides to cooperate with the limiting grooves 414.

[0023] The top two sides of the sliding plate 2 are provided with buffer blocks 23, and the middle rail 7 touches the buffer blocks 23.

[0024] The process for preventing multi-layer drawers from tipping over in this embodiment is as follows: One of the drawers in the cabinet is open. The guide posts 31 of the anti-tipping slide rails on both sides of the drawer are in the locking position 111, and the hanging post 411 is in the locking slide section 212. The interlocking mechanism 4 is in the locked state. The other drawers are in the guide opening section 211 and stuck on the guide slope 2111, and cannot be opened. When the drawer is closed, the inner rail 8 and the middle rail 7 gradually slide inward. The middle rail 7 stops sliding after contacting the buffer block 23. The inner rail 8 continues to slide inward. The groove 51 drives the pin assembly 3 to deflect. At the same time, the guide post 31 leaves the locking position 111 and slides inward with the inner rail 8. The groove 51 drives and drives the sliding plate 2 to slide inward. After the hanging post 411 passes through the locking slide section 212, it reaches the guide opening section 211. At this time, the sliding plate 2 stops sliding, and the inner rail 8 and the middle rail 7 also stop sliding. At this time, due to the action of the transmission assembly 42, the interlocking mechanism 4 is unlocked, the locking assembly 41 can slide up and down, and the other drawers are in the openable state.

[0025] All drawers inside the cabinet are closed. Guide posts 31 are located in guide grooves 11, and hanging posts 411 are located in the inlet opening section 211. When any drawer is pulled outward, the inner rails 8 of the anti-tipping slides on both sides of the drawer pull the guide posts 31 through the grooves 51. The guide posts 31 drive the sliding plates 2 to slide outward. After the hanging posts 411 pass through the inlet opening section 211, they reach the locking slide section 212. At the same time, the guide posts 31 slide along the guide grooves 11 and finally reach the locking position 111, causing the pin assembly 3 to deflect. At this time, due to the action of the transmission assembly 42, the hanging posts 411 of the other drawers are still in the inlet opening section 211 and are stuck on the inlet ramp 2111, making them unable to be opened. The inner rails 8 and the middle rails 7 can continue to slide outward, and the drawers are fully opened.

[0026] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the 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. An anti-tipping slide rail 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 (6) and a movable slide rail installed inside it and slidable relative to it. The movable slide rail includes a middle rail (7) and an inner rail (8). It also includes: The base plate (1) is fixedly installed at the rear end of the fixed slide rail (6). The base plate (1) has a guide groove (11) and a locking position (111) is provided on the guide groove (11). A sliding plate (2) and a pin-shifting assembly (3) are provided. The sliding plate (2) is movably disposed on the base plate (1). The sliding plate (2) has an interlocking groove (21). The interlocking groove (21) includes a front inlet opening section (211) and a rear locking groove section (212). The rear end of the sliding plate (2) is provided with a first through hole (22). The pin-shifting assembly (3) is oscillatingly disposed on the sliding plate (2). One end of the pin-shifting assembly (3) is provided with a guide post (31). The guide post (31) passes through the first through hole (22). One end of the guide post (31) slides in the guide groove (11). An interlocking mechanism (4) is used for interlocking between adjacent upper and lower slide rails. It includes a locking component (41) and a transmission component (42). The locking component (41) has a hanging post (411) on one side. The locking component (41) passes through the fixed slide rail (6) and positions the hanging post (411) in front of the inlet opening section (211). The locking component (41) is detachably connected to the transmission component (42) and passes vertically through the fixed slide rail (6). When the guide post (31) slides to the locking position (111), the pin assembly (3) deflects, the sliding plate (2) stops sliding, and the hanging post (411) is locked in the locking slide groove section (212). When any drawer is opened, the interlocking mechanism (4) is in a locked state, and the drawers of other layers cannot be opened.

2. The anti-tipping slide rail device for multi-layer drawers according to claim 1, characterized in that, It also includes a locking piece (5), which is fixedly disposed at the rear end of the inner rail (8). The locking piece (5) has a groove (51), which is linked with the guide post (31) to drive the sliding plate (2) to slide.

3. The anti-tipping slide rail device for multi-layer drawers according to claim 1, characterized in that, The inner side of the sliding plate (2) has an inlet inclined surface (2111), an auxiliary inclined surface (2112), a concave surface (2123), and parallel first locking inclined surface (2121) and second locking inclined surface (2122). The inlet inclined surface (2111) and the auxiliary inclined surface (2112) form the inlet opening section (211). The first locking inclined surface (2121), the second locking inclined surface (2122), and the concave surface (2123) together form the locking groove section (212). The inlet opening section (211) and the locking groove section (212) are interconnected.

4. The anti-tipping slide rail device for multi-layer drawers according to claim 3, characterized in that, When any drawer is opened, the sliding plate (2) of the anti-tipping slide rail device of that layer slides outward along the inner rail (8), and the hanging column (411) is locked in the concave surface (2123) of the locking slide groove section (212) after passing through the inlet opening section (211). The transmission component (42) is in a locked state, and the hanging columns (411) of the anti-tipping slide rail devices of other layers are locked in the inlet opening section (211).

5. The anti-tipping slide rail device for multi-layer drawers according to claim 1, characterized in that, The fixed slide rail (6) has a second through hole (61) and a third through hole (62) perpendicular to the sliding direction. The second through hole (61) and the third through hole (62) are located on both sides of the front end of the base plate (1). The locking component (41) passes through the second through hole (61) and the third through hole (62). The locking component (41) has two limiting strips (412) on one side. The limiting strips (412) are located between the second through hole (61) and the third through hole (62) to prevent the locking component (41) from sliding out of the fixed slide rail (6).

6. The anti-tipping slide rail device for multi-layer drawers according to claim 1, characterized in that, The locking component (41) has first teeth (413) at both ends, and the transmission component (42) has second teeth (421) on the inner side. The first teeth (413) mesh with the second teeth (421). The first teeth (413) are provided with limiting grooves (414) on both sides, and the second teeth (421) are provided with protrusions (422) on both sides to cooperate with the limiting grooves (414).

7. The anti-tipping slide rail device for multi-layer drawers according to claim 1, characterized in that, The sliding plate (2) has buffer blocks (23) on both sides of its top, and the middle rail (7) touches the buffer blocks (23).

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