An easy-to-install anti-tip slide rail for a multi-layer drawer

Abstract

This invention discloses an easy-to-install anti-tipping slide rail for multi-layer drawers, comprising a first slide rail and a second slide rail disposed vertically on different drawer layers. The first and second slide rails have the same structure, each including a fixed slide rail and a movable slide rail installed within it and capable of sliding relative to it. The movable slide rail includes a middle rail and an inner rail, and also includes a base plate, a sliding plate, a pin, a locking plate, a locking component, and a transmission rod. This invention achieves simplified parts and reduces the likelihood of errors through the linkage between the base plate, sliding plate, pin, locking plate, and locking component, resulting in low production and operating costs. While enabling the basic opening and closing of a single drawer, it also achieves interlocking functionality between multiple drawers, better aligning with daily usage habits. The locking component is divided into a first locking block and a second locking block, facilitating the connection of easy-to-install anti-tipping slide rails on different layers during drawer assembly and distributing the interaction force between adjacent easy-to-install anti-tipping slide rails.

Description

Technical Field

[0001] This invention relates to the field of drawer slide technology, and more particularly to an easy-to-install anti-tipping drawer slide 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 June 26, 2023, the applicant filed a patent application with patent number 2023107667848, entitled "Anti-tipping Slide Rail Device for Multi-Layer Drawers," which details an anti-tipping slide rail device for multi-layer drawers, comprising: a base plate, a sliding plate, a pin, and an interlocking mechanism. A locking position is provided on the guide groove, and the sliding plate has an interlocking groove, including a front guide opening section and a rear locking groove section. A hanging post is provided on one side of the locking component. The locking component passes through the fixed slide rail and positions the hanging post in front of the guide opening section. When the guide post slides to the locking position, the pin 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 locked, preventing other drawers from opening. However, in actual production and use, it was found that the connection structure of the interlocking mechanism in this technical solution is not easy to assemble inside the drawer, increasing installation costs for personnel, and the locking component is prone to damage under long-term stress.

[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 embodiments of the present invention is to provide an easy-to-install anti-tipping slide rail for multi-layer drawers.

[0007] To solve the above-mentioned technical problems, the present invention provides an easy-to-install anti-tipping slide rail for multi-layer drawers, including a first slide rail and a second slide rail arranged vertically on different drawer layers. The first slide rail and the second slide rail have the same structure, each including a fixed slide rail and a movable slide rail installed inside it and slidable relative to it. The movable slide rail includes a middle rail and an inner rail, and also includes a base plate, a sliding plate, a pin, a locking piece, a locking component, and a transmission rod.

[0008] The base plate is fixedly mounted on the inner wall of the tail end of the fixed slide rail. The base plate has a guide groove and a locking position. The sliding plate is movably mounted on the base plate. The inner wall of the sliding plate has a protrusion. The rear end of the sliding plate has a first through hole. The pin is oscillatingly mounted on the sliding plate. One end of the pin has a first guide post and a second guide post. The first guide post passes through the first through hole, and the second guide post slides in the guide groove. The locking piece is fixedly mounted on the rear end of the inner rail. The locking piece has a linkage recess. The linkage recess is linked with the first guide post and drives the sliding plate to slide. The locking assembly is detachably connected to the transmission rod and passes vertically through the fixed slide rail. The locking assembly includes a first locking block and a second locking block. The first locking block and the second locking block are movably embedded in the front end of the inner wall of the sliding plate. Both the first locking block and the second locking block have inclined surfaces. The protrusion supports the inclined surfaces, causing the first locking block and the second locking block to move away from each other.

[0009] When any drawer is opened, the inner rail slides outward, the locking plate drives the sliding plate to slide outward via the pin, the protrusion supports the inclined surface, causing the first locking block and the second locking block to move apart, the second guide post falls into the locking position, causing the sliding plate to stop sliding, the first guide post disengages from the linkage recess, the inner rail continues to slide outward until the drawer is fully opened, the inclined surfaces of the drawers of other layers are pressed tightly against the protrusion, preventing the sliding plate from sliding outward and locking it to the bottom plate, and the drawers of other layers cannot be opened.

[0010] Preferably, one side of the first locking block has a first extension and a first groove, and one side of the second locking block has a second extension and a second groove, wherein the shape of the first extension matches the shape of the second groove, and the shape of the second extension matches the shape of the first groove.

[0011] Preferably, the first extension is fitted into the second groove, the second extension is fitted into the first groove, and the first extension and the second extension move apart and toward each other along the directions of the first groove and the second groove.

[0012] Preferably, the protrusion includes an upper triangular part and a lower rectangular part, both the first locking block and the second locking block have inclined surfaces, the shape of which matches the hypotenuse of the upper triangular part, and the base plate has a receiving recess, the shape of which matches the shape of the lower rectangular part.

[0013] Preferably, both ends of the locking component have a first limiting block, a second limiting block, and a top block. The first limiting block and the second limiting block are fixedly arranged in parallel and a third groove for accommodating the end of the transmission rod is carved between them. The top block is fixedly arranged on the inner side of the first limiting block and the second limiting block.

[0014] 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. The two limiting strips are raised from the middle of the locking component to both ends to prevent the locking component from sliding out of the fixed slide rail.

[0015] Preferably, buffer blocks are provided on both sides of the top of the sliding plate, and the end face of the middle rail contacts the buffer blocks.

[0016] Implementing the embodiments of the present invention has the following beneficial effects:

[0017] This invention achieves a streamlined design by linking the base plate, sliding plate, pin, locking plate, and locking components, reducing the likelihood of errors and lowering production and operating costs. It enables the basic opening and closing of a single drawer while also providing interlocking functionality between multiple drawers, making it more suitable for everyday use.

[0018] Install anti-tipping slide rails on the drawers of the cabinet. Connect the easy-to-install anti-tipping slide rails of adjacent layers in the cabinet through the transmission rod. When one drawer is opened, the other drawers cannot be opened. This achieves an interlock 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 tilt the cabinet.

[0019] The locking components are divided into a first locking block and a second locking block, which makes it convenient for installers to connect the easy-to-install anti-tipping slides of different layers when assembling the drawers, and can also distribute the interaction force with the adjacent easy-to-install anti-tipping slides.

[0020] Pull out any drawer from the cabinet. The inner rails on the easy-install anti-tipping slides on both sides of the drawer slide outwards. The locking plates on the inner wall of the inner rails drive the sliding plate to slide outwards simultaneously via a pin. The protrusion supports the inclined surface, causing the first and second locking blocks to move apart. This pushes the locking components of other drawers to move via a transmission rod. Then, the second guide post falls into the locking position, stopping the sliding plate from sliding. The first guide post disengages from the linkage recess, and the inner rail continues to slide outwards until the drawer is fully opened. The inclined surfaces of other drawers are pressed tightly against the protrusion, preventing the sliding plates from sliding outwards and locking them to the bottom plate. The locking components cannot move up or down, and the corresponding slides cannot move. This prevents other drawers from being pulled out when one drawer is pulled out of the cabinet, avoiding the simultaneous pulling out of multiple drawers and ensuring the cabinet's center of gravity. This prevents the cabinet from tilting and causing damage or injury when all drawers are pulled out. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the main structure of an embodiment of the present invention;

[0023] Figure 3 This is an exploded view of the main structure of an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the fixed rail and base plate structure according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the base plate structure according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the sliding plate structure according to an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the inner wall of the sliding plate and the locking assembly structure according to an embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of the pin-shifting structure according to an embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of the inner rail inner wall and locking plate structure according to an embodiment of the present invention;

[0030] Figure 10 This is a schematic diagram of the locking plate structure according to an embodiment of the present invention;

[0031] Figure 11 This is a schematic diagram of the locking component structure according to an embodiment of the present invention;

[0032] Figure 12 This is a schematic diagram of the locking component structure according to an embodiment of the present invention;

[0033] Figure 13 This is a schematic diagram of the locking component structure according to an embodiment of the present invention;

[0034] Figure 14 This is a schematic diagram of the locking component and transmission rod structure according to an embodiment of the present invention.

[0035] In the diagram: 1. Fixed slide rail, 11. Second through hole, 12. Third through hole, 2. Moving slide rail, 21. Middle rail, 22. Inner rail, 3. Base plate, 31. Guide groove, 32. Locking position, 33. Accommodating recess, 4. Sliding plate, 41. Protrusion, 411. Upper part of triangle, 412. Lower part of rectangle, 42. First through hole, 43. Buffer block, 5. Pin, 51. First guide post, 52. Second guide post, 6. Locking plate, 61. Linkage recess, 7. Locking assembly, 71. First locking block, 711. First extension, 712. First groove, 72. Second locking block, 721. Second extension, 722. Second groove, 73. Inclined surface, 74. First limiting block, 75. Second limiting block, 76. Top block, 77. Third groove, 78. Limiting strip, 8. Transmission rod. Detailed Implementation

[0036] 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.

[0037] like Figures 1 to 14 As shown, an easy-to-install anti-tipping drawer slide 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 1 and a movable slide 2 installed inside and slidable relative to it. The movable slide 2 includes a middle rail 21 and an inner rail 22, and also includes a base plate 3, a sliding plate 4, a pin 5, a locking piece 6, a locking component 7, and a transmission rod 8. This invention achieves a streamlined design by linking the base plate 3, sliding plate 4, pin 5, locking piece 6, and locking component 7, reducing the number of parts, minimizing errors, and lowering production and operating costs. While enabling the basic opening and closing of a single drawer, it also achieves an interlocking function between multiple drawers, making it more suitable for daily use.

[0038] like Figures 5 to 14As shown, the base plate 3 is fixedly mounted on the inner wall of the tail end of the fixed slide rail 1. The base plate 3 has a guide groove 31, and a locking position 32 is provided on the guide groove 31. The sliding plate 4 is movably mounted on the base plate 3. The inner wall of the sliding plate 4 has a protrusion 41, which includes an upper triangular part 411 and a lower rectangular part 412. The first locking block 71 and the second locking block 72 both have inclined surfaces 73, the shape of which matches the hypotenuse of the upper triangular part 411. The base plate 3 has a receiving recess 33, the shape of which matches the shape of the lower rectangular part 412. The rear end of the sliding plate 4 has a first through hole 42. The top two sides of the sliding plate 4 have buffer blocks 43, and the end face of the middle rail 21 contacts the buffer block 43. The dial pin 5 is oscillatingly mounted on the sliding plate 4. One end of the dial pin 5 is provided with a first guide post 51 and a second guide post 52. The first guide post 51 passes through the first through hole 42, and the second guide post 52 slides in the guide groove 31. The locking plate 6 is fixedly installed at the rear end of the inner rail 22. The locking plate 6 has a linkage recess 61. The first guide post 51 falls into the linkage recess 61 to deflect the pin 5. At the same time, the second guide post 52 disengages from the locking position 32. The linkage recess 61 is linked with the first guide post 51 and drives the sliding plate 4 to slide.The locking component 7 is detachably connected to the transmission rod 8 and passes perpendicularly through the fixed slide rail 1. The fixed slide rail 1 has a second through hole 11 and a third through hole 12 perpendicular to the sliding direction. The second through hole 11 and the third through hole 12 are located on both sides of the front end of the base plate 3, respectively. The locking component 7 passes through the second through hole 11 and the third through hole 12. The locking component 7 has two limiting strips 78 on one side, which are located between the second through hole 11 and the third through hole 12. The two limiting strips 78 are respectively tilted from the middle of the locking component 7 towards both ends. The locking component 7 is wider than the second through hole 11 and the third through hole 12 to prevent it from sliding out of the fixed slide rail 1. Both ends of the locking component 7 have a first limiting block 74, a second limiting block 75, and a top block 76. The first limiting block 74 and the second limiting block 75 are fixedly arranged in parallel and a third groove 77 for accommodating the end of the transmission rod 8 is carved between them. The top block 76 is fixedly arranged on the inner side between the first limiting block 74 and the second limiting block 75. The locking component 7 includes a first locking block 71. The first locking block 71 and the second locking block 72 are movably engaged with each other at the front end of the inner wall of the sliding plate 4. There is a slope 73 between the facing surfaces of the first locking block 71 and the second locking block 72. The protrusion 41 supports the slope 73, causing the first locking block 71 and the second locking block 72 to move apart. One side of the first locking block 71 has a first extension 711 and a first groove 712. The first groove 712 is formed by the interval between the first extension 711 and the slope 73 of the locking block 72. One side of the second locking block 72 has a second extension 721 and a second groove 722. The shape of the first extension 711 matches the shape of the second groove 722, and the shape of the second extension 721 matches the shape of the first groove 712. The first extension 711 is engaged with the second groove 722, and the second extension 721 is engaged with the first groove 712. The first extension 711 and the second extension 721 move apart and toward each other along the direction of the first groove 712 and the second groove 722. The locking component 7 is divided into a first locking block 71 and a second locking block 72, which makes it convenient for installers to connect the easy-to-install anti-tipping slides of different layers when assembling the drawer, and can also distribute the interaction force with the adjacent easy-to-install anti-tipping slides.

[0039] When any drawer in the cabinet is pulled out, the inner rails 22 on the easy-install anti-tipping slides on both sides of the drawer slide outwards. The locking plates 6 on the inner wall of the inner rails 22 drive the sliding plates 4 to slide outwards simultaneously via the pins 5. The protrusions 41 support the inclined surfaces 73, causing the first locking blocks 71 and the second locking blocks 72 to move away from each other. This pushes the locking components 7 of other drawers to move via the transmission rods 8. Subsequently, the second guide post 52 falls into the locking position 32, stopping the sliding plates 4 from sliding. The first guide post 51 disengages from the linkage recess 61, and the inner rails 22 continue to slide outwards until the drawer is fully opened. The inclined surfaces 73 of other drawers are pressed tightly against the protrusions 41, preventing the sliding plates 4 from sliding outwards and locking them to the bottom plate 3. The locking components 7 cannot move up or down, and the corresponding easy-install anti-tipping slides cannot move. This prevents other drawers from being pulled out when one drawer is pulled out of the cabinet, avoiding the simultaneous pulling out of multiple drawers and ensuring the center of gravity of the cabinet. This prevents the cabinet from tilting and causing damage or injury when all drawers are pulled out. After the open drawer is closed, the locking component 7 of the easy-install anti-tipping slide rail of that layer does not return to its original position, but is in a state where it can move in opposite directions. When other drawers are opened, the locking components 7 of the easy-install anti-tipping slide rail of the other layer move outwards, and the first locking block 71 or the second locking block 72 of the previously opened drawer is lifted up by the transmission rod 8, so that it returns to its original position.

[0040] Anti-tipping slide rails are installed on the drawers of the cabinet. The easy-to-install anti-tipping slide rails of adjacent layers in the cabinet are connected by transmission rod 8. When one drawer is opened, the other drawers cannot be opened, thus realizing the 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 tilt the cabinet.

[0041] Of course, the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be used to limit the scope of protection of the present invention. All modifications made according to the spirit and essence of the main technical solution of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An easy-to-install anti-tipping drawer slide for multi-layer drawers, characterized in that, It includes a first slide rail and a second slide rail arranged on different drawer layers. The first slide rail and the second slide rail have the same structure, both including a fixed slide rail (1) and a movable slide rail (2) installed inside and slidable relative to it. The movable slide rail (2) includes a middle rail (21) and an inner rail (22), and also includes a base plate (3), a sliding plate (4), a dial pin (5), a locking piece (6), a locking assembly (7), and a transmission rod (8). The base plate (3) is fixedly mounted on the inner wall of the tail end of the fixed slide rail (1). The base plate (3) has a guide groove (31) and a locking position (32) on the guide groove (31). The sliding plate (4) is movably mounted on the base plate (3). The inner wall of the sliding plate (4) has a protrusion (41). The rear end of the sliding plate (4) has a first through hole (42). The pin (5) is oscillatingly mounted on the sliding plate (4). One end of the pin (5) is provided with a first guide post (51) and a second guide post (52). The first guide post (51) passes through the first through hole (42), and the second guide post (52) slides in the guide groove (31). The locking piece (6) is fixedly mounted on the inner rail (22). At the end, the locking plate (6) has a linkage recess (61), the linkage recess (61) is linked with the first guide post (51) and drives the sliding plate (4) to slide. The locking assembly (7) is detachably connected to the transmission rod (8) and passes vertically through the fixed slide rail (1). The locking assembly (7) includes a first locking block (71) and a second locking block (72). The first locking block (71) and the second locking block (72) are movably embedded in the front end of the inner wall of the sliding plate (4). The first locking block (71) and the second locking block (72) both have inclined surfaces (73). The protrusion (41) supports the inclined surfaces (73) to make the first locking block (71) and the second locking block (72) move away from each other. When any drawer is opened, the inner rail (22) slides outward, the locking plate (6) drives the sliding plate (4) to slide outward through the pin (5), the protrusion (41) supports the inclined surface (73) to make the first locking block (71) and the second locking block (72) move away from each other, the second guide post (52) falls into the locking position (32) to stop the sliding plate (4) from sliding, the first guide post (51) disengages from the linkage recess (61), the inner rail (22) continues to slide outward until the drawer is fully opened. In other drawers, the inclined surface (73) of the drawer is pressed against the corresponding protrusion (41), so that the sliding plate (4) cannot slide outward and is locked on the bottom plate (3), and the drawers of other layers cannot be opened.

2. The easy-to-install anti-tipping slide rail for multi-layer drawers according to claim 1, characterized in that, The first locking block (71) has a first extension (711) and a first groove (712) on one side, and the second locking block (72) has a second extension (721) and a second groove (722) on one side. The shape of the first extension (711) matches the shape of the second groove (722), and the shape of the second extension (721) matches the shape of the first groove (712).

3. The easy-to-install anti-tipping slide rail for multi-layer drawers according to claim 2, characterized in that, The first extension (711) is inserted into the second groove (722), and the second extension (721) is inserted into the first groove (712). The first extension (711) and the second extension (721) move away from each other and towards each other along the directions of the first groove (712) and the second groove (722).

4. The easy-to-install anti-tipping slide rail for multi-layer drawers according to claim 1, characterized in that, The protrusion (41) includes a triangular upper part (411) and a rectangular lower part (412). The first locking block (71) and the second locking block (72) both have inclined surfaces (73). The shape of the inclined surfaces (73) matches the hypotenuse of the upper part (411). The base plate (3) has a receiving recess (33). The shape of the receiving recess (33) matches the shape of the lower part (412).

5. The easy-to-install anti-tipping drawer slide for multi-layer drawers according to claim 1, characterized in that, The locking component (7) has a first limiting block (74), a second limiting block (75) and a top block (76) at both ends. The first limiting block (74) and the second limiting block (75) are fixedly arranged in parallel and a third groove (77) for accommodating the end of the transmission rod (8) is provided between them. The top block (76) is fixedly arranged on the inside of the first limiting block (74) and the second limiting block (75).

6. The easy-to-install anti-tipping slide rail for multi-layer drawers according to claim 1, characterized in that, The fixed slide rail (1) has a second through hole (11) and a third through hole (12) perpendicular to the sliding direction. The second through hole (11) and the third through hole (12) are located on both sides of the front end of the base plate (3). The locking component (7) passes through the second through hole (11) and the third through hole (12). The locking component (7) has two limiting strips (78) on one side. The limiting strips (78) are located between the second through hole (11) and the third through hole (12). The two limiting strips (78) are raised from the middle of the locking component (7) to both ends to prevent the locking component (7) from sliding out of the fixed slide rail (1).

7. The easy-to-install anti-tipping slide rail for multi-layer drawers according to claim 1, characterized in that, The sliding plate (4) has buffer blocks (43) on both sides of its top, and the end face of the middle rail (21) touches the buffer blocks (43).

Images