Slide rail mechanism for cabinet drawer

Abstract

The utility model discloses a sliding rail mechanism for a cabinet drawer, and relates to the technical field of cabinet drawers. A traditional drawer is strenuous in manual operation and lacks an automatic locking function. The cabinet comprises a cabinet body and a drawer, a U-shaped shell is fixedly installed in an inner cavity of the cabinet body, a screw assembly driven by a motor is arranged in the U-shaped shell, and the screw assembly drives the drawer to move through a sliding block installed on the screw assembly; the two ends of the top face of the U-shaped shell are fixedly connected with reset springs, the other ends of the reset springs are connected with moving rods in sliding fit with the U-shaped shell, the drawer is provided with a push rod used for pushing the moving rods and a first magnetic attraction block, the top of each moving rod is rotationally connected with an overturning rod, and each overturning rod is provided with a second magnetic attraction block used in cooperation with the corresponding first magnetic attraction block. A supporting rod is fixedly installed on the top face of the U-shaped shell, a connecting rod is rotationally connected to the supporting rod, and the other end of the connecting rod is rotationally connected with the overturning rod. According to the technical scheme, electric opening and closing of the drawer and automatic locking of the closing state are achieved, and operation convenience and safety are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cabinet drawer technical field especially relates to a cabinet drawer slide rail mechanism. BACKGROUND

[0002] The cabinet is the indispensable storage unit in modern home and office environment, and the convenience and reliability of the drawer as an important part of the cabinet directly affect the actual experience of the user. The traditional cabinet drawer usually adopts a manual push-pull design and is equipped with ordinary ball slides or damping slides. Such slides can realize the stable opening and closing of the drawer to a certain extent, and the slides with damping function can also effectively prevent the drawer from being damaged due to violent impact.

[0003] However, for the drawer located at a higher or lower position, or for the user with less strength and poor mobility, such as the elderly, children or disabled people, the manual push-pull operation is not convenient and laborious. In addition, some drawers require locking function to ensure the safety of the internal items or prevent accidental opening by children. The traditional mechanical lock usually needs to use a key or manually operate the lock catch, which is not only cumbersome but also increases the use burden. SUMMARY

[0004] The utility model aims at: through its unique drive and locking design, it provides the user with more intelligent, convenient, stable and safe drawer use experience.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a cabinet drawer slide rail mechanism, comprising a cabinet body and a drawer, a U-shaped shell is fixedly installed in the inner cavity of the cabinet body, a screw rod assembly driven by a motor is arranged in the U-shaped shell, the screw rod assembly drives the drawer to move through the sliding block installed thereon;

[0006] The top surface of the U-shaped shell is fixedly connected with a reset spring at both ends, the other end of the reset spring is fixedly connected with a moving rod in sliding cooperation with the U-shaped shell, a push rod and a first magnetic block for pushing the moving rod are installed on the drawer, a turnover rod is rotatably connected to the top of the moving rod, a second magnetic block cooperating with the first magnetic block is arranged on the turnover rod, a supporting rod is fixedly installed on the top surface of the U-shaped shell, a connecting rod is rotatably connected to the supporting rod, and the other end of the connecting rod is rotatably connected with the turnover rod.

[0007] As a further description of the above technical scheme: a driving column is fixedly installed on the sliding block, the driving column passes through the strip-shaped hole arranged on the U-shaped shell and is in sliding cooperation with the strip-shaped hole, and the driving column is fixedly connected with the drawer.

[0008] As a further description of the above technical scheme: the screw rod assembly comprises a synchronous rod arranged in the inner cavity of the U-shaped shell, and the output shaft of the motor is connected with the synchronous rod through a belt to drive the rotation thereof.

[0009] As a further description of the above technical solution: both ends of the synchronizing rod are fixed with first bevel gears, and each first bevel gear meshes with a corresponding second bevel gear.

[0010] As a further description of the above technical solution: each of the second bevel gears is fixedly connected to a lead screw, and the synchronizing rod and the lead screw are rotatably supported by corresponding support columns.

[0011] As a further description of the above technical solution: the slider is sleeved on the outer ring of the lead screw and is threaded with the lead screw; the end of each lead screw away from the second bevel gear is rotatably connected to the inner cavity wall of the U-shaped shell; and the support column is fixed to the bottom wall of the inner cavity of the U-shaped shell.

[0012] As a further description of the above technical solution: when the drawer is closed, the push rod pushes the moving rod to move against the elastic force of the return spring, and then drives the flipping rod to flip through the connecting rod, so that the second magnetic block and the first magnetic block attract each other to lock the drawer.

[0013] As a further description of the above technical solution: when the drawer is driven to open, the push rod separates from the moving rod, the moving rod is reset under the elastic force of the return spring, and drives the flip rod to flip in the opposite direction, so that the second magnetic block separates from the first magnetic block to unlock the drawer.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0015] 1. The drawer movement is controlled by a motor-driven screw assembly, which realizes automatic opening and closing of the drawer, greatly improving the convenience of use. It is especially suitable for modern smart home environments and is convenient for various users.

[0016] 2. The flip-locking mechanism, consisting of a moving rod, a push rod, a return spring, a first magnetic block, and a second magnetic block, enables automatic magnetic locking of the drawer when it is closed and automatic unlocking when it is opened. This effectively ensures the drawer is closed, prevents accidental opening, and allows for smooth unlocking when needed. Attached Figure Description

[0017] Figure 1 A side view of the present invention is shown;

[0018] Figure 2 This utility model is shown Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 A perspective view of the present invention is shown;

[0020] Figure 4 A top view of the present invention is shown;

[0021] Figure 5 A perspective view of the drawer and U-shaped shell of this utility model is shown.

[0022] Legend:

[0023] 10. Cabinet body; 11. Drawer; 111. Push rod; 12. U-shaped shell; 13. Motor; 14. Slider; 141. Drive column; 15. Return spring; 16. Moving rod; 17. First magnetic block; 18. Flip rod; 19. Second magnetic block; 20. Support rod; 21. Connecting rod; 22. Synchronizing rod; 23. First bevel gear; 24. Second bevel gear; 25. Lead screw; 26. Support column. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-5 This utility model provides a technical solution: a drawer slide mechanism for a cabinet, including a cabinet body 10 and a drawer 11. A U-shaped shell 12 is fixed inside the cavity of the cabinet body 10. A screw assembly driven by a motor 13 is provided inside the U-shaped shell 12. The screw assembly drives the drawer 11 to extend or retract within the cabinet body 10 through a slider 14 installed on it.

[0026] The movement of drawer 11 is controlled by the screw assembly driven by motor 13, which realizes the automatic opening and closing of drawer 11, greatly improving the convenience of use. It is especially suitable for modern smart home environments and is convenient for various users to operate.

[0027] Specifically, a drive post 141 is fixedly installed on the slider 14. The drive post 141 passes through the strip hole opened on the U-shaped shell 12 and is slidably connected to the strip hole, so that the slider 14 can move stably along the trajectory of the strip hole under the drive of the screw assembly. The drive post 141 is fixedly connected to the drawer 11, thereby transmitting the linear motion of the slider 14 to the drawer 11 and realizing the synchronous movement of the drawer 11.

[0028] Furthermore, a synchronizing rod 22 is installed in the inner cavity of the U-shaped shell 12. The output shaft of the motor 13 is connected to the synchronizing rod 22 via a belt, thereby driving the synchronizing rod 22 to rotate. A first bevel gear 23 is fixedly installed at both ends of the synchronizing rod 22. Each first bevel gear 23 meshes with a second bevel gear 24. Each second bevel gear 24 is fixedly connected to a lead screw 25.

[0029] The synchronizing rod 22 and each lead screw 25 are rotatably sleeved and supported by the support columns 26. These support columns 26 are fixed to the bottom wall of the inner cavity of the U-shaped shell 12. The slider 14 is sleeved on the outer ring of the lead screw 25. Specifically, the internal thread of the slider 14 is engaged with the external thread of the lead screw 25, so that when the lead screw 25 rotates, the slider 14 can move along the axial direction of the lead screw 25. The end of each lead screw 25 away from the second bevel gear 24 is rotatably connected to the inner cavity wall of the U-shaped shell 12 to ensure the stability of the rotation of the lead screw 25.

[0030] This double lead screw 25 structure design ensures the synchronous rotation of the lead screws 25 on both sides by the synchronizing rod 22 and bevel gears, thereby ensuring the smoothness and synchronicity of the drawer 11 during movement and avoiding jamming or skewing. Specifically, the drive structure of the synchronizing rod 22 in conjunction with the first bevel gear 23, the second bevel gear 24 and the lead screw 25 can ensure the synchronous driving force on both sides of the drawer 11, effectively avoiding skewing or shaking of the drawer 11 during movement, and ensuring the smoothness of operation and the accuracy of positioning.

[0031] Furthermore, in order to achieve the function of locking the drawer 11 when it is closed and unlocking it when it needs to be opened, a return spring 15 is fixed at both ends of the top surface of the U-shaped shell 12. Each return spring 15 is fixedly connected to a moving rod 16, which is slidably connected to the U-shaped shell 12. A push rod 111 is installed on the drawer 11. The push rod 111 is used to push the moving rod 16 when the drawer 11 is closed. At the same time, a first magnetic block 17 is also installed on the drawer 11.

[0032] A flip rod 18 is rotatably mounted on the top of the moving rod 16. A second magnetic block 19 is provided on the flip rod 18. The second magnetic block 19 is designed to cooperate with and attract the first magnetic block 17 on the drawer 11. A support rod 20 is also fixed on the top surface of the U-shaped shell 12. A connecting rod 21 is rotatably mounted on the support rod 20. The other end of the connecting rod 21 is rotatably connected to the flip rod 18.

[0033] When drawer 11 is opened, the moving rod 16 is in a preset position under the elastic force of the return spring 15, such as... Figure 1 As shown above; when drawer 11 is pushed to the closed position, the push rod 111 on drawer 11 will contact and push the moving rod 16. When pushed by the push rod 111, the moving rod 16 will be displaced. Since the moving rod 16 is rotatably connected to the flip rod 18, and the flip rod 18 is rotatably connected to the fixed support rod 20 through the connecting rod 21, the displacement of the moving rod 16 will drive the flip rod 18 to flip around its connection point with the moving rod 16 and the connection point between the connecting rod 21 and the support rod 20.

[0034] When drawer 11 is closed, push lever 111 pushes moving lever 16 to a specific position. At this time, flip lever 18 flips to a locked position. In this locked position, the second magnetic block 19 on flip lever 18 aligns with the first magnetic block 17 on drawer 11 and attracts each other, thereby firmly locking drawer 11 in the closed state and preventing it from accidentally sliding out. Figure 1 As shown below.

[0035] When drawer 11 needs to be opened, the screw assembly driven by motor 13 causes slider 14 to move drawer 11 outward. The initial pulling force overcomes the magnetic attraction between the first magnetic block 17 and the second magnetic block 19. As drawer 11 moves outward, push rod 111 no longer applies a pushing force to moving rod 16. At this time, under the action of return spring 15, moving rod 16 will drive flip rod 18 to flip in the opposite direction to the unlocked position. In this unlocked position, the relative position of the second magnetic block 19 and the first magnetic block 17 changes, the magnetic lock is released, and drawer 11 can be fully opened. Figure 3 As shown above.

[0036] The flip-locking mechanism, consisting of components such as the moving rod 16, the push rod 111, the return spring 15, the first magnetic block 17, and the second magnetic block 19, enables the drawer 11 to automatically lock magnetically when closed and automatically unlock when opened, effectively ensuring the drawer 11 is closed, preventing accidental sliding, and allowing for smooth unlocking when needed.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A drawer slide mechanism for a cabinet, comprising a cabinet body (10) and a drawer (11), characterized in that: A U-shaped shell (12) is fixedly installed in the inner cavity of the cabinet (10). A screw assembly driven by a motor (13) is provided inside the U-shaped shell (12). The screw assembly drives the drawer (11) to move through a slider (14) installed on it. A return spring (15) is fixedly connected to both ends of the top surface of the U-shaped shell (12). The other end of the return spring (15) is fixedly connected to a moving rod (16) that slides with the U-shaped shell (12). A push rod (111) for pushing the moving rod (16) and a first magnetic block (17) are installed on the drawer (11). A flip rod (18) is rotatably connected to the top of the moving rod (16). A second magnetic block (19) that cooperates with the first magnetic block (17) is provided on the flip rod (18). A support rod (20) is fixedly installed on the top surface of the U-shaped shell (12). A connecting rod (21) is rotatably connected to the support rod (20). The other end of the connecting rod (21) is rotatably connected to the flip rod (18).

2. The drawer slide mechanism for a cabinet according to claim 1, characterized in that: A drive column (141) is fixedly installed on the slider (14). The drive column (141) passes through the strip hole provided on the U-shaped shell (12) and slides in cooperation with the strip hole. The drive column (141) is fixedly connected to the drawer (11).

3. The drawer slide mechanism for a cabinet according to claim 1, characterized in that: The screw assembly includes a synchronizing rod (22) located inside the U-shaped shell (12), and the output shaft of the motor (13) is connected to the synchronizing rod (22) via a belt to drive it to rotate.

4. The drawer slide mechanism for a cabinet according to claim 3, characterized in that: Both ends of the synchronizing rod (22) are fixed with first bevel gears (23), and each first bevel gear (23) meshes with a corresponding second bevel gear (24).

5. A drawer slide mechanism for a cabinet according to claim 4, characterized in that: Each of the second bevel gears (24) is fixedly connected to a lead screw (25), and the synchronizing rod (22) and the lead screw (25) are rotatably supported by the corresponding support column (26).

6. The drawer slide mechanism for a cabinet according to claim 5, characterized in that: The slider (14) is sleeved on the outer ring of the lead screw (25) and is threaded into the lead screw (25). The end of each lead screw (25) away from the second bevel gear (24) is rotatably connected to the inner wall of the U-shaped shell (12). The support column (26) is fixed to the bottom wall of the inner cavity of the U-shaped shell (12).

7. The drawer slide mechanism for a cabinet according to claim 1, characterized in that: When the drawer (11) is closed, the push rod (111) pushes the moving rod (16) to move against the elastic force of the return spring (15), and then drives the flipping rod (18) to flip through the connecting rod (21), so that the second magnetic block (19) and the first magnetic block (17) attract each other to lock the drawer (11).

8. The drawer slide mechanism for a cabinet according to claim 1, characterized in that: When the drawer (11) is driven to open, the push rod (111) separates from the moving rod (16), and the moving rod (16) is reset under the elastic force of the return spring (15), which drives the flip rod (18) to flip in the opposite direction, so that the second magnetic block (19) separates from the first magnetic block (17) to unlock the drawer (11).

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