Cabinet drawer self-locking mechanism
By designing a self-locking mechanism for cabinet drawers, using a combination of push rods, fixing rods, hemispheres, and sliders, the problems of drawers sliding out automatically and handles easily slipping out are solved, achieving self-locking and safe opening of the drawers.
Patent Information
- Application Number
- CN202422637697.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Traditional cabinet drawers are prone to sliding out or falling out due to accidental operation, and the handles are easy to slip out of your hand. They are also structurally unreasonable and inconvenient to use.
Design a self-locking mechanism for a cabinet drawer. By combining a push rod, a fixed rod, a hemisphere, a slider, and a spring, and utilizing the contact and movement of inclined and curved surfaces, the drawer can be self-locked and its opening controlled.
It effectively prevents drawers from sliding out automatically, ensures that the handle is not easy to slip out of your hand, and improves safety and convenience of use.
Smart Images
Figure CN223529133U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automatic switches, specifically a self-locking mechanism for a cabinet drawer. Background Technology
[0002] Traditional workbenches / tool cabinets use multi-layered drawers, each controlled by a single lock from top to bottom. Normally, this overall lock is open, but when the workbench / tool cabinet is moved unintentionally, the drawers can easily slide out or fall off, posing a significant danger. To address this, a self-locking device for each individual drawer was designed. However, this device is easily interfered with by the drawer above it. Furthermore, if the handle is pulled too forcefully, it can rotate too far and slip out of the hand. The structure is flawed and inconvenient to use. Utility Model Content
[0003] The purpose of this utility model is to provide a self-locking mechanism for cabinet drawers to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a cabinet drawer self-locking mechanism, comprising an upper wing plate, a drawer back plate fixedly connected to the bottom of the upper wing plate, a drawer slidably connected to the lower inner surface of the upper wing plate, a push rod fixedly connected to the drawer near the drawer back plate, a fixed rod fixedly connected to the push rod away from the drawer, a guide block slidably connected to the outer wall of the fixed rod, a hemisphere fixedly connected to the fixed rod away from the push rod, a fixed cylinder fixedly connected to the drawer back plate near the drawer, a mounting lower plate fixedly connected to the fixed cylinder away from the drawer back plate, an mounting upper plate provided on the mounting lower plate away from the drawer back plate, a through hole opened at the center of the upper surface of the mounting lower plate, a T-shaped groove opened in the inner wall of the through hole, a slider provided in the T-shaped groove, guide blocks fixedly connected to both sides of the T-shaped groove, the guide blocks slidably connected to the inner wall of the T-shaped groove opening, a spring fixedly connected to the bottom of the T-shaped groove, and the spring fixedly connected to the slider.
[0005] As a further improvement of this utility model, a handle is fixedly connected to the side of the drawer away from the back panel.
[0006] As a further improvement of this utility model: both the upper mounting plate and the lower mounting plate are provided with blind holes, and bolts are threaded into the blind holes.
[0007] As a further improvement of this utility model: there are three sets of T-slots, and the three sets of T-slots are symmetrically distributed around the axis of the through hole.
[0008] As a further improvement of this utility model, the upper and lower parts of the guide block are both frustum-shaped.
[0009] As a further improvement of this utility model, the upper and lower surfaces of the hemisphere are respectively a plane and a sphere.
[0010] As a further improvement of this utility model, the side of the push rod closest to the fixed rod is arc-shaped.
[0011] As a further improvement of this utility model, the side of the slider near the hole axis is inclined.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] Push the handle towards the side closer to the back panel of the drawer. The handle pushes the drawer towards the side closer to the back panel. After the spherical surface of the hemisphere contacts the inclined surface of the slider, the slider and guide block move towards the inside of the through hole, compressing the spring and causing it to deform. Continue pushing the handle; the inclined surface of the slider will slide over the spherical surface of the hemisphere. The spring will return to its original deformation, pushing the slider towards the side closer to the axis of the through hole, so that the plane of the slider and the plane of the hemisphere fit together, preventing pullback. Push the handle; the inclined surface of the slider will contact one side of the curved surface of the guide block and move along the curved surface towards the bottom of the T-slot. Then, the inclined surface of the slider will cross this side of the curved surface of the guide block, so that the plane of the slider and the other side of the curved surface of the guide block contact each other and move relative to each other under the action of the spring force. Pull the handle; the slider will drive the guide block on the fixed rod towards the side closer to the hemisphere. Then, the plane of the slider will move along the inclined surface of the guide block. Subsequently, the plane of the slider will separate from the curved surface of the guide block, and then the plane of the slider will contact and slide with the curved surface of the hemisphere. Finally, the slider will gradually move away from the hemisphere, opening the cabinet. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the self-locking mechanism for a cabinet drawer.
[0015] Figure 2 This is a top view of the self-locking mechanism of a cabinet drawer.
[0016] Figure 3 BB diagram of the self-locking mechanism of a cabinet drawer.
[0017] Figure 4 This is a partial schematic diagram of the self-locking mechanism of a cabinet drawer.
[0018] Figure 5 This is a planar section AA diagram of the self-locking mechanism of a cabinet drawer.
[0019] Figure 6 This is a partial right-side view of the self-locking mechanism of a cabinet drawer.
[0020] Figure 7 This is a partial left-side view of the self-locking mechanism of a cabinet drawer.
[0021] In the diagram: 1. Upper wing plate; 2. Drawer; 3. Handle; 4. Push rod; 5. Guide block; 6. Fixing rod; 7. Hemisphere; 8. Bolt; 9. Mounting upper plate; 10. Mounting lower plate; 11. Fixing cylinder; 12. Drawer back plate; 13. Spring; 14. Slider; 15. Guide block; 16. Blind hole; 17. Through hole; 18. T-slot. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1-7 In this embodiment of the utility model, a self-locking mechanism for a cabinet drawer is provided. A drawer back panel (12) is fixedly connected to the bottom of the upper wing plate (1). A drawer (2) is slidably connected to the lower inner surface of the upper wing plate (1). A push rod (4) is fixedly connected to the side of the drawer (2) near the drawer back panel (12). A fixing rod (6) is fixedly connected to the side of the push rod (4) away from the drawer (2). A guide block (5) is slidably connected to the outer wall of the fixing rod (6). A hemisphere (7) is fixedly connected to the side of the fixing rod (6) away from the push rod (4). A fixing cylinder (11) is fixedly connected to the side of the drawer back panel (12) near the drawer (2). A mounting lower plate (10) is fixedly connected to one side of the drawer back plate (12). A mounting upper plate (9) is provided on the side of the mounting lower plate (10) away from the drawer back plate (12). A through hole (17) is provided at the center of the upper surface of the mounting lower plate (10). A T-shaped groove (18) is provided on the inner wall of the through hole (17). A slider (14) is provided in the T-shaped groove (18). Guide blocks (15) are fixedly connected to both sides of the T-shaped groove (18). The guide blocks (15) are slidably connected to the inner wall of the groove of the T-shaped groove (18). A spring (13) is fixedly connected to the bottom of the T-shaped groove (18). The spring (13) is fixedly connected to the slider (14).
[0024] A handle (3) is fixedly connected to the side of the drawer (2) away from the back panel (12). Both the upper mounting plate (9) and the lower mounting plate (10) are provided with blind holes (16). Bolts (8) are threaded into the blind holes (16). There are three sets of T-slots (18). The three sets of T-slots (18) are symmetrically distributed around the axis of the through hole (17). The upper and lower parts of the guide block (5) are both frustum arc shapes. The upper and lower surfaces of the hemisphere (7) are a plane and a sphere, respectively. The push rod (4) is arc-shaped on the side near the fixed rod (6). The slider (14) is inclined on the side near the axis of the hole (17).
[0025] The working principle of this utility model is as follows:
[0026] Push handle 3 to move it closer to the drawer back panel 12. Handle 3 pushes drawer 2 (with push rod 4, guide block 5, fixing rod 6 and hemisphere 7 on one side) to move closer to the drawer back panel 12. After the spherical surface of hemisphere 7 contacts the inclined surface of slider 14, slider 14 and guide block 15 move into the through hole 17, compressing spring 13 to deform it. Continue to push handle 3 to move closer to the drawer back panel 12. The inclined surface of slider 14 will slide over the spherical surface of hemisphere 7. Spring 13 will restore its deformation and push slider 14 to move closer to the axis of through hole 17, so that the plane of slider 14 and the plane of hemisphere 7 fit together to prevent pullback.
[0027] Push the handle 3 to move towards the side closer to the drawer back panel 12. The inclined surface of the slider 14 will contact one side of the curved surface of the guide block 5 and move along the curved surface to the bottom of the T-slot 18. Then the inclined surface of the slider 14 will cross this side of the curved surface of the guide block 5, so that the plane of the slider 14 and the other side of the curved surface of the guide block 5 will contact each other and move relative to each other under the action of the spring force of the spring 13.
[0028] Pulling handle 3 away from the drawer back panel 12 causes slider 14 to move guide block 5 on fixed rod 6 towards the hemisphere 7. When guide block 5 contacts hemisphere 7, continue pulling handle 3. The plane of slider 14 moves along the inclined surface of guide block 5. Then, the plane of slider 14 separates from the curved surface of guide block 5. Subsequently, the plane of slider 14 contacts and slides with the curved surface of hemisphere 7. Then, slider 14 gradually moves away from hemisphere 7, opening the cabinet.
[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A self-locking mechanism for a cabinet drawer, comprising an upper wing plate (1), characterized in that: The bottom of the upper wing plate (1) is fixedly connected to a drawer back plate (12), and the lower surface of the inner wall of the upper wing plate (1) is slidably connected to a drawer (2); A push rod (4) is fixedly connected to the side of the drawer (2) near the back panel (12), and a fixed rod (6) is fixedly connected to the side of the push rod (4) away from the drawer (2). A guide block (5) is slidably connected to the outer wall of the fixed rod (6), and a hemisphere (7) is fixedly connected to the side of the fixed rod (6) away from the push rod (4). A fixing cylinder (11) is fixedly connected to the side of the drawer back panel (12) near the drawer (2), and a mounting lower plate (10) is fixedly connected to the side of the fixing cylinder (11) away from the drawer back panel (12). A mounting upper plate (9) is provided on the side of the mounting lower plate (10) away from the drawer back panel (12). A through hole (17) is provided at the center of the upper surface of the mounting plate (10). A T-slot (18) is provided on the inner wall of the through hole (17). A slider (14) is provided in the T-slot (18). Guide blocks (15) are fixedly connected to both sides of the T-slot (18). The guide blocks (15) are slidably connected to the inner wall of the T-slot (18). A spring (13) is fixedly connected to the bottom of the T-slot (18). The spring (13) is fixedly connected to the slider (14).
2. The cabinet drawer self-locking mechanism according to the upper wing plate (1) is characterized in that: A handle (3) is fixedly connected to the side of the drawer (2) away from the back panel (12).
3. The cabinet drawer self-locking mechanism according to the upper wing plate (1) is characterized in that: Both the upper mounting plate (9) and the lower mounting plate (10) are provided with blind holes (16), and bolts (8) are threaded into the blind holes (16).
4. The cabinet drawer self-locking mechanism according to the upper wing plate (1) is characterized in that: There are three sets of T-slots (18), and the three sets of T-slots (18) are symmetrically distributed around the axis of the through hole (17).
5. The cabinet drawer self-locking mechanism according to the upper wing plate (1) is characterized in that: The upper and lower parts of the guide block (5) are both frustum-shaped.
6. The cabinet drawer self-locking mechanism according to the upper wing plate (1) is characterized in that: The upper and lower surfaces of the hemisphere (7) are a plane and a sphere, respectively.
7. The cabinet drawer self-locking mechanism according to the upper wing plate (1) is characterized in that: The push rod (4) has an arc shape on the side near the fixed rod (6).
8. The cabinet drawer self-locking mechanism according to the upper wing plate (1) is characterized in that: The slider (14) has an inclined surface on the side near the axis of the hole (17).