Spring-free drive cabinet door rebounder

Abstract

This invention relates to the field of hardware accessories, specifically a springless cabinet door rebound device. It includes a fixed shell installed inside a cabinet, with a hollow interior containing a flipping cavity. A flipping frame is rotatably mounted within the flipping cavity, and a first magnet is mounted on the flipping frame. A guide groove extends inward from the front end of the fixed shell, and a drive arm is slidably mounted within the guide groove. The drive arm is linked to the flipping frame; pressing the drive arm pushes the flipping frame to swing, causing the first magnet on the flipping frame to rotate from an upward position to a forward position. It also includes a second magnet mounted on the cabinet door, with the magnetic poles of the second magnet facing the same direction as the first magnet. The advantages of this invention are: by employing a magnetic repulsion mechanism, it replaces springs and complex rebound control systems, significantly reducing the number of moving parts.

Description

Technical Field

[0001] This invention relates to the field of hardware accessories, specifically a springless driven cabinet door rebound device. Background Technology

[0002] Existing cabinet door rebound mechanisms, especially push-button type, typically rely on springs and complex rebound control mechanisms to function. These traditional designs generally include springs, latches, and other cooperating components, storing and releasing energy through the elastic deformation of the spring to drive the opening and closing of the cabinet door. For example, in a push-button type cabinet door rebound mechanism, when the user presses the door, the spring is compressed to store energy, which is then released through the rebound control mechanism, pushing the door open. However, this spring-based traditional design has the following significant drawbacks:

[0003] Complex Structure: Traditional push-button cabinet door rebound mechanisms require integrated springs and complex rebound control mechanisms, such as multi-stage latches or damping devices, to ensure that the cabinet door can smoothly and reliably spring open after being pressed. This design typically involves multiple moving parts, leading to overall structural complexity. This complex structure not only increases the difficulty of design and assembly but may also reduce the stability of the device due to interactions between components.

[0004] High manufacturing costs: Due to the need for springs, latches, and other precision components, the manufacturing process of traditional cabinet door rebound mechanisms is relatively complicated, resulting in high material and processing costs. In particular, the damping or guiding components in the rebound control mechanism often require high manufacturing precision, further increasing production costs.

[0005] Limited lifespan: As a core component, the spring will fatigue due to repeated compression and release during long-term use, leading to weakened elasticity or even breakage. This wear and aging significantly shortens the lifespan of the spring, incurring additional replacement costs for users. Therefore, further improvements are necessary. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a new type of cabinet door rebounder that is simple in structure, easy to use, eliminates the use of springs, simplifies the rebound control mechanism, reduces structural complexity, reduces manufacturing and maintenance costs, and improves the reliability and service life of the device.

[0007] The objective of this invention is achieved through the following means: a springless driven cabinet door rebound device, comprising a fixed shell installed inside the cabinet, the fixed shell having a hollow interior with a flipping cavity; a flipping frame is rotatably installed inside the flipping cavity, and a first magnet is installed on the flipping frame;

[0008] The front end of the fixed shell extends inward and is provided with a guide groove. A drive arm is slidably installed in the guide groove. The drive arm is linked with the flipping frame. Pressing the drive arm pushes the flipping frame to swing, so that the first magnet on the flipping frame rotates from the upward state to the forward state.

[0009] It also includes a second magnet installed on the cabinet door, the magnetic poles of the second magnet facing the same direction as the magnetic poles of the first magnet.

[0010] Furthermore: hinge seats are symmetrically arranged in the flipping cavity, and hinge shafts are provided at both ends of the flipping frame. The flipping frame is rotatably installed in the hinge seats through the hinge shafts.

[0011] Furthermore: the guide groove is provided on the outside of one of the hinge seats, and a linkage arm is provided on the hinge shaft on the same side, the linkage arm extending into the guide groove and connecting with the drive arm.

[0012] Furthermore, a pushing step is provided on the side of the drive arm facing the linkage arm, and the pushing step presses against the linkage arm.

[0013] Furthermore, the sidewall of the drive arm extends outward with an anti-detachment block.

[0014] Furthermore, the aforementioned tilting frame is also equipped with a counterweight. Under normal conditions, the counterweight is located at the bottom and pushes the first magnet upward.

[0015] Furthermore, the surface of the second magnet is covered with a protective cover, which is embedded in the door body.

[0016] Furthermore, the first magnet and the second magnet are permanent magnets.

[0017] The beneficial effects of this invention are: 1. Simple structure, low production cost, and improved market competitiveness.

[0018] 2. This invention significantly reduces the number of moving parts by employing a magnetic repulsion mechanism, replacing springs and complex rebound control systems. This simplified design makes the device easier to design, assemble, and maintain, avoiding the complexity caused by the collaborative work of multiple components in traditional designs.

[0019] 3. By eliminating the need for precision springs and complex mechanical components, the material and production costs of this invention are significantly reduced. Using standardized permanent magnets and a simplified mechanical structure not only reduces processing difficulty but also improves cost-effectiveness in the production process.

[0020] 4. This invention features a simple design with fewer components, making the installation process more intuitive and efficient. Compared to traditional bouncers that require precise alignment of multiple moving parts, this invention reduces installation time and the need for specialized skills, thus lowering the incidence of installation errors.

[0021] 5. This invention avoids the use of springs that are prone to fatigue and breakage, instead employing durable permanent magnets and a robust mechanical linkage structure. The permanent magnets will not lose performance with prolonged use, thus significantly extending the lifespan of the device. Attached Figure Description

[0022] Figure 1 This is a diagram illustrating the overall assembly and usage effect of the invention with the cabinet and cabinet doors.

[0023] Figure 2 This is a schematic diagram of the structure of the present invention.

[0024] Figure 3 , 4 This is an exploded view of the structure of the present invention.

[0025] Figure 5 This is a cross-sectional view of the cabinet door in the closed state in this invention.

[0026] Figure 6 This is a cross-sectional view of the cabinet door in the pressed and rebound state in this invention.

[0027] Figure 7 This is a schematic diagram of the structure of the cabinet with the door closed and the fixed shell hidden in the present invention.

[0028] Figure 8 This is a schematic diagram of the cabinet door in the pressed and rebounded state, with the fixed shell hidden.

[0029] Figure 9 This is a schematic diagram of the flipping frame structure in this invention.

[0030] Figure 10 This is a schematic diagram of the drive arm structure in this invention. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings. A springless driven cabinet door rebound device includes a fixed shell 2 installed inside a cabinet body 1, and a rotating cavity 21 is provided inside the fixed shell 2. A rotating frame 3 is rotatably installed inside the rotating cavity 21, and a first magnet 4 is installed on the rotating frame 3.

[0032] The front end of the fixed shell 2 extends inward and is provided with a guide groove 22. A drive arm 5 is slidably installed in the guide groove 22. The drive arm 5 is linked with the flipping frame 3. Pressing the drive arm 5 pushes the flipping frame 3 to swing, so that the first magnet 4 on the flipping frame 3 rotates from the upward state to the forward state.

[0033] It also includes a second magnet 7 installed on the cabinet door 6, the magnetic poles of the second magnet 7 being oriented in the same direction as the magnetic poles of the first magnet 4.

[0034] The core components of the device include a fixed shell installed inside a cabinet, which contains a hollow flipping cavity. A flipping frame is mounted inside the flipping cavity via a rotatable mechanism, and a first magnet is fixed on the flipping frame. The front end of the fixed shell extends inward to form a guide groove, within which a drive arm is slidably mounted. The drive arm is connected to the flipping frame via a linkage mechanism. Furthermore, a second magnet is installed on the cabinet door, with its magnetic poles facing the same direction as the first magnet.

[0035] like Figure 5 , 7 As shown, under normal conditions: the first magnet is in the upward position, and the cabinet door is in the closed position under the reset action of the self-resetting hinge 9. At this time, the first magnet and the second magnet are not directly aligned, the magnetic force is weak, and the cabinet door remains closed.

[0036] like Figure 6 , 8 As shown, when the user presses the cabinet door, the door pushes the drive arm inward, causing the drive arm to slide inward along the guide groove. During the sliding process, the drive arm, in conjunction with the flipping frame, pushes the flipping frame to swing around its rotation axis. The swinging of the flipping frame causes the first magnet to rotate from an upward state to a forward state, so that the first magnet and the second magnet on the cabinet door face each other. Since the magnetic poles of the first and second magnets are oriented in the same direction (e.g., both are N poles or S poles facing forward), they generate a magnetic repulsion. When the user finishes pressing and releases the cabinet door, the repulsive force pushes the cabinet door outward a crack, allowing the user to open the cabinet door through the crack.

[0037] Compared to traditional technologies, this project replaces traditional springs and complex mechanical structures with a magnetic repulsion mechanism, reducing moving parts and simplifying the overall design. It also eliminates the need for springs and precision components, lowering manufacturing and material costs, reducing potential mechanical failure points, and enhancing the stability of the device.

[0038] In one embodiment, hinge seats 23 are symmetrically arranged within the tilting cavity 21, and hinge shafts 31 extend outward from both ends of the tilting frame 3. The tilting frame 3 is rotatably mounted within the hinge seats 23 via the hinge shafts 31. When the drive arm is pressed and the tilting frame is pushed through a linkage mechanism, the tilting frame uses the hinge shafts as fulcrums to achieve a smooth swinging motion within the hinge seats. The symmetrical hinge seats provide stable support for the tilting frame, ensuring that it does not tilt or vibrate during rotation. Simultaneously, the symmetrical hinge seat design and the rotatable mounting method of the hinge shafts improve the smoothness and durability of the tilting frame's rotation.

[0039] In one embodiment, the guide groove 22 is located on the outer side of one of the hinge seats 23, and a linkage arm 32 is provided on the hinge shaft 31 on the same side. The linkage arm 32 extends into the guide groove 22 and connects to the drive arm 5. When the user presses the cabinet door, the drive arm slides inward along the guide groove. As the drive arm slides, it contacts the linkage arm and pushes the linkage arm to move. The linkage arm then drives the hinge shaft and the flipping frame to rotate, realizing the state switching of the first magnet. In this embodiment, the cooperation between the guide groove and the linkage arm realizes the precise linkage between the drive arm and the flipping frame, ensuring the reliability of the action transmission. At the same time, placing the guide groove on the outer side of the hinge seat makes full use of space, making the overall structure of the device more compact.

[0040] In one embodiment, the drive arm 5 has a pushing step 51 on the side facing the linkage arm 32, and the pushing step 51 presses against the linkage arm 32. When the cabinet door is pressed, the drive arm slides inward along the guide groove, and the pushing step presses against the linkage arm, transmitting force to the linkage arm. After being subjected to force, the linkage arm drives the flipping frame to rotate. The design of the pushing step ensures effective force transmission during pressing, and does not interfere with the reset of the flipping frame after release. At the same time, the pressing method achieves direct and effective force transmission, reducing energy loss.

[0041] In one embodiment, the sidewall of the drive arm 5 extends outward with an anti-detachment block 52. In this embodiment, the outward extension of the sidewall of the drive arm forms the anti-detachment block, which cooperates with the inner wall of the guide groove to limit the sliding range of the drive arm. When the drive arm slides within the guide groove, the anti-detachment block prevents it from detaching from the guide groove due to excessive sliding or external force, ensuring the stability of the device during operation. The anti-detachment design prevents parts from accidentally falling off, enhancing the reliability and safety of the device.

[0042] In one embodiment, the flipping frame 3 is further provided with a counterweight 33. Under normal conditions, the counterweight 33 is located at the bottom, pushing the first magnet 4 upwards. Therefore, when there is no external force pressing down, the counterweight is located at the bottom of the flipping frame due to gravity, keeping the frame stable and pushing the first magnet to the upward position. After the pressing operation is completed, the external pressure is released, and the counterweight, relying on gravity, drives the flipping frame to reset, restoring the first magnet to the upward position, ready for the next operation. The counterweight replaces the traditional spring to achieve the reset function, avoiding spring fatigue and extending service life. Simultaneously, the gravity effect is stable and reliable, not easily affected by environmental factors, ensuring the long-term effectiveness of the reset function.

[0043] In one embodiment, the surface of the second magnet 7 is covered with a protective cover 8, which is embedded in the door body. The protective cover covers the second magnet, preventing it from being affected by external impacts, dust, or moisture, ensuring the magnet's performance stability. Simultaneously, the protective cover's embedding in the door body securely fixes the second magnet to the cabinet door, enabling it to work with the first magnet to achieve a rebound function. Furthermore, the protective cover improves the durability and safety of the second magnet, extending its service life. In addition, the concealed embedding design keeps the cabinet door's appearance clean and enhances the overall aesthetics of the furniture.

[0044] In one embodiment, the first magnet 4 and the second magnet 7 are permanent magnets. The magnetic force of permanent magnets will not decrease with prolonged use, ensuring the long-term stability of the device.

[0045] In summary, the springless cabinet door rebound device of this invention achieves the function of pressing and rebounding the cabinet door through an innovative magnetic repulsion and simplified mechanical linkage mechanism. The magnetic mechanism and simple linkage replace springs and complex mechanisms, reducing the number of parts. At the same time, eliminating springs and precision components reduces manufacturing and material costs, thus allowing for widespread application.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A springless cabinet door rebound device, characterized in that: Includes a fixed shell (2) installed inside the cabinet (1) and containing a first magnet (4), and a second magnet (7) installed on the cabinet door (6) for cooperating with the first magnet to achieve a rebound. The front end of the fixed shell (2) is provided with a guide groove (22), and a drive arm (5) is installed in the guide groove (22) to slide into the fixed shell (2) along the guide groove under the push of the cabinet door; The fixed shell (2) has a hollow interior with a flipping cavity (21); a flipping frame (3) is rotatably installed inside the flipping cavity (21), and the first magnet (4) is installed on the flipping frame (3) and can rotate from the upward state to the forward state. The flipping cavity (21) is symmetrically provided with hinge seats (23); the flipping frame (3) is provided with hinge shafts (31) extending outward from both ends on the left and right sides, and the flipping frame (3) is rotatably installed in the hinge seats (23) through the hinge shafts (31); A linkage arm (32) is provided on the hinge shaft (31) at the left or right end of the flipping frame (3). The linkage arm (32) extends into the guide groove (22) and connects with the drive arm (5), so that the drive arm (5) is linked with the flipping frame (3) so that when the drive arm (5) slides into the fixed shell (2), it pushes the flipping frame (3) to swing, so that the first magnet (4) on the flipping frame (3) rotates from the upward state to the forward state, and is repelled by the same polarity of the second magnet (7), thus realizing the cabinet door rebound. The flipping frame (3) is also equipped with a counterweight (33). Under normal conditions, the counterweight (33) is located at the bottom and pushes the first magnet (4) to tilt upward.

2. The springless drive cabinet door rebound device according to claim 1, characterized in that: The guide groove (22) is located on the outside of a hinge seat (23), which is used to mount the hinge shaft (31) with the linkage arm (32).

3. The springless drive cabinet door rebound device according to claim 1, characterized in that: The drive arm (5) is provided with a push step (51) on the side facing the linkage arm (32), and the push step (51) presses against the linkage arm (32).

4. The springless drive cabinet door rebound device according to claim 1, characterized in that: The side wall of the drive arm (5) extends outward with an anti-detachment block (52).

5. A springless cabinet door rebound device according to claim 1, characterized in that: The surface of the second magnet (7) is covered with a protective cover (8), which is embedded in the door body.

6. The springless cabinet door rebound device according to claim 1, characterized in that: The first magnet (4) and the second magnet (7) are permanent magnets.

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