Intelligent rebound device

By incorporating the circuit board and automatic retraction mechanism of the intelligent rebound device, the cabinet door can be automatically sensed and reset, solving the problem of existing rebound devices requiring secondary pushing and improving ease of use and applicability.

CN120946206APending Publication Date: 2025-11-14ZHAOQING SHENGKELI PRECISION MFG CO LTD
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Patent Information

Application Number
CN202511326838.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-17
Publication Date
2025-11-14

AI Technical Summary

Technical Problem

The existing rebound mechanism requires a second push to reset the second push rod when closing the cabinet door, which prevents the cabinet door from closing completely.

Method used

The cabinet door adopts an intelligent rebound mechanism design, which uses components such as circuit boards, automatic retraction devices, Hall switches, and magnets to achieve automatic sensing and automatic reset of the cabinet door, avoiding secondary pushing.

Benefits of technology

The cabinet door closes automatically without needing to be pushed twice, improving ease of use and applicability. It adapts to different power environments and can still be operated manually during power outages.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an intelligent rebounding device which comprises a bottom plate, two guide columns and a detection plate, a circuit board is installed on the bottom plate, the circuit board is electrically connected with an automatic retraction device, a protective shell is installed outside the automatic retraction device, the protective shell is connected with an outer shell, the outer shell is provided with a limiting column, the two guide columns are installed on the protective shell, and the detection plate is electrically connected with the detection plate. A switch piece is connected to the guide column in a sliding mode, a main rod is connected to the switch piece in a clamped mode, a spring abutting against the switch piece is connected to the main rod in a sleeved mode, a hook line is placed in the switch piece, the hook line is arranged on a limiting column in a sleeving mode, the limiting column is connected with the protection shell in an inserted mode, and the detection plate is installed on the surface of the bottom plate and electrically connected with the circuit board. The main rod is provided with a trigger head located beside the detection plate, after the cabinet door is opened for about 3 seconds, the circuit board controls the motor to rotate, the motor controls the nut to move through the twisted rod, the nut drives the main rod and the switch piece to retract and reset, and the cabinet door does not need to be pushed for the second time when the cabinet door is closed.
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Description

Technical Field

[0001] This invention relates to the field of bouncer technology, specifically to an intelligent bouncer. Background Technology

[0002] In some kitchen cabinets, wardrobes, and other home appliance cabinets, the doors are usually hinged to the cabinet body. To open them, pull the handle on the door. Sometimes, to improve the appearance of the cabinets and wardrobes, handles are installed on the doors; therefore, a push-pull mechanism is needed to open the doors.

[0003] Among the relevant technologies, a solution for a rebound device (announcement number CN219119027U) was found. This solution has the same function as a traditional rebound device. When the cabinet door is closed, pressing the cabinet door triggers the rebound device. The second push rod of the rebound device pops out and pushes open the cabinet door. When the cabinet door is closed, the cabinet door pushes the second push rod to reset, thus closing the cabinet door.

[0004] However, in the process of using the above solution, when closing the cabinet door, it is necessary to push the cabinet door again to reset the second push rod. If the cabinet door is not pushed, the second push rod will block the cabinet door, and the cabinet door will be in a state of not being closed tightly, and the cabinet door cannot be closed tightly directly. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent bouncer to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an intelligent rebounder, comprising a base plate, a circuit board mounted on the base plate, an automatic retraction device electrically connected to the circuit board, a protective shell mounted on the outside of the automatic retraction device, an outer shell connected to the protective shell and connected to the base plate, and the outer shell having limit posts;

[0007] Two guide pillars are provided and installed on the protective shell. A switch is slidably connected to the guide pillar. The switch is snapped with a main rod. A magnet is provided at the front end of the main rod. A spring is sleeved on the main rod to hold the switch. A hook is placed in the switch. The hook is sleeved on a limit post, and the limit post is inserted into the protective shell. The main rod is connected to an automatic retraction device. After the main rod retracts, the hook catches the switch and keeps the main rod in the retracted state.

[0008] The detection board is installed on the surface of the base plate and is electrically connected to the circuit board. The main rod has a trigger head located next to the detection board. After the main rod pops out, the detection board separates from the trigger head, and the Hall switch at the front end of the detection board senses that the magnet is in place. The circuit board receives the signal from the detection board and controls the automatic retraction device to work, so that the main rod retracts and resets, allowing the cabinet door to be closed directly without having to push the cabinet door a second time, making it more convenient to use.

[0009] Furthermore, the base plate surface is connected to a mounting base via a snap-fit ​​connector. The mounting base is detachably connected to the base plate, enabling the rebounder to be fixed in a detachable manner. This detachable connection design facilitates the installation, disassembly, and maintenance of the rebounder, allowing operation to be completed without complicated tools and improving ease of use.

[0010] Furthermore, the snap-fit ​​component includes a trapezoidal snap-fit ​​block and an inclined snap-fit ​​rod. The trapezoidal snap-fit ​​block is integrally formed with the mounting base, and the inclined snap-fit ​​rod is integrally formed with the base plate. The guiding and limiting functions of the inclined and trapezoidal structures ensure smooth assembly and disassembly, while guaranteeing the structural strength after connection and preventing loosening.

[0011] Furthermore, the main rod end is equipped with a stud, and the stud is screwed with an adjustment head, which can adjust the effective length of the main rod according to actual usage needs, thereby enhancing the applicability of the rebounder and enabling it to adapt to scenarios with different thicknesses or installation positions.

[0012] Furthermore, the inner wall of the outer casing is provided with three battery slots, and three battery packs are placed inside the battery slots. The battery packs are electrically connected to the circuit board to provide sufficient power supply and ensure the endurance of the bouncer.

[0013] Furthermore, the circuit board is electrically connected to a charging port and a DC power supply port. The built-in battery can be charged through the charging port, and an external power source can be directly connected through the DC power supply port to adapt to different power environments.

[0014] Furthermore, the base plate surface is provided with two support frames, the guide post is placed on the support frame, the support frame and the outer shell clamp the guide post, the protective shell has two U-shaped seats, the end of the guide post is locked into the U-shaped seat, ensuring that the guide post does not shake or deviate during operation, and ensuring the smoothness and accuracy of the sliding of the switch on the guide post.

[0015] Furthermore, the surface of the switch component is provided with an elastic retaining strip, and the main rod is sleeved on the surface of the elastic retaining strip. The elastic structure can adapt to certain assembly errors and ensure the reliability of the connection.

[0016] Furthermore, the automatic retraction device includes a motor, a twisted rod, a nut, and a limiting strip. The magnet is inserted into the nut, and the limiting strip is integrally formed with the main rod. The nut and the magnet are inserted into the main rod, and the limiting strip is engaged in the limiting opening on the surface of the nut. The motor provides power, causing the main rod to retract automatically, reducing manual operation.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1) After pressing the cabinet door, the cabinet door pushes the main rod and switch to move. After the hook and switch are unlocked, the spring pushes the switch and main rod to pop out. The main rod opens the cabinet door. The main rod drives the trigger head to separate from the detection board. The detection board sends a cabinet door opening signal to the circuit board. About 3 seconds later, the circuit board controls the motor to rotate. The motor controls the nut to move through the torsion rod. The nut drives the main rod and switch to retract and reset. When closing the cabinet door, the cabinet door is directly in the closed state. There is no need to push the cabinet door a second time. Closing the cabinet door is convenient and easy.

[0019] (2) The battery pack can be charged through the charging port and the motor can be powered by the battery pack. The motor can also be powered directly by the DC power supply port. It is adaptable to different cabinets and can be used in multiple cabinets. It has a wide range of applications.

[0020] (3) When the power is off, press the cabinet door manually. The cabinet door can push the main rod to reset, just like a normal rebound device. In the absence of power, the cabinet door can be closed tightly. The absence of power does not affect the closing of the cabinet door. Attached Figure Description

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

[0022] Figure 2 This is a schematic diagram of the structure of the base plate and mounting base of the present invention;

[0023] Figure 3 This is a schematic diagram of the trapezoidal locking block and the inclined locking rod of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the present invention, showing the outer shell and the base plate separated.

[0025] Figure 5 This is a schematic diagram of the connection between the guide post and the bracket of the present invention;

[0026] Figure 6 This is a schematic diagram of the detection board and trigger head of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the present invention, in which the main rod and nut are manufactured separately;

[0028] Figure 8 This is a schematic diagram of the internal structure of the main rod of the present invention.

[0029] In the diagram: 1. Outer shell; 2. Adjustment head; 3. Charging port; 4. DC power supply port; 5. Base plate; 6. Mounting base; 7. Battery slot; 8. Limiting post; 9. Main rod; 10. Switch; 11. Hook wire; 12. Circuit board; 13. Protective shell; 14. Guide post; 15. Spring; 16. U-shaped seat; 17. Bracket; 18. Trapezoidal block; 19. Elastic locking strip; 20. Angled locking rod; 21. Motor; 22. Torque rod; 23. Nut; 24. Magnet; 25. Limiting strip; 26. Detection plate; 27. Trigger head; 28. Battery pack; 29. ​​Limiting port; 30. Hall switch. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example:

[0032] Please see Figure 1-8 The present invention provides a technical solution: an intelligent rebounder, including a base plate 5, a circuit board 12 mounted on the base plate 5, an automatic retraction device electrically connected to the circuit board 12, a protective shell 13 mounted on the outside of the automatic retraction device, an outer shell 1 connected to the protective shell 13, and the outer shell 1 connected to the base plate 5, the outer shell 1 having a limit post 8, the outer shell 1 protecting the rebounder and making the rebounder have a neat appearance;

[0033] Two guide posts 14 are provided and installed on the protective shell 13. A sliding switch 10 is mounted on the guide post 14. The switch 10 is snapped with a main rod 9. A magnet 24 is provided at the front end of the main rod 9. A spring 15 is sleeved on the main rod 9 to hold the switch 10. A hook 11 is placed in the switch 10. The hook 11 is sleeved on a limiting post 8, and the limiting post 8 is inserted into the protective shell 13. The sliding switch 10 has... Figure 5 The irregular groove and irregular block shown are connected by a hook line 11 that moves between them. When the main rod 9 retracts, the hook line 11 hooks the irregular block to prevent the main rod 9 from popping out. When the main rod 9 pops out, the hook line 11 separates from the irregular block and does not affect the popping out of the main rod 9.

[0034] The main rod 9 is connected to the automatic retraction device. After the main rod 9 pops out, the automatic retraction device can automatically control the main rod 9 to return to its original position. At this time, when the cabinet door is closed, the main rod 9 will not block the cabinet door, and the cabinet door will be closed tightly directly.

[0035] The detection plate 26 is mounted on the surface of the base plate 5. The detection plate 26 has a push switch and uses the push switch to determine whether the cabinet door is open. The detection plate 26 is electrically connected to the circuit board 12. The main rod 9 has a trigger head 27 located next to the detection plate 26. After the main rod 9 pops out, the detection plate 26 separates from the trigger head 27, and the Hall switch 30 at the front end of the detection plate 26 senses that the magnet 24 is in place. The circuit board 12 receives the signal from the detection plate 26 and controls the automatic retraction device to work, so that the main rod 9 retracts and resets, realizing the automatic retraction of the main rod 9 without manual pressing of the main rod 9, thus realizing the automatic operation of the rebound device.

[0036] In this embodiment, as Figure 2 and Figure 3 As shown, the base plate 5 is connected to the mounting base 6 via a snap-fit ​​connector. The mounting base 6 is detachably connected to the base plate 5, enabling the retractable fixing of the rebounder. The mounting base 6 has six holes, and screws are used to fix the mounting base 6 to the cabinet. The base plate 5 and the mounting base 6 are detachably connected, making it convenient to assemble and disassemble the rebounder.

[0037] In this embodiment, as Figure 2 and Figure 3 As shown, the snap-fit ​​component includes a trapezoidal snap-fit ​​block 18 and an inclined snap-fit ​​rod 20. The trapezoidal snap-fit ​​block 18 is integrally formed with the mounting base 6, and the inclined snap-fit ​​rod 20 is integrally formed with the base plate 5. The base plate 5 is aligned with the mounting base 6. Then, the base plate 5 is slid, and the inclined snap-fit ​​rod 20 moves along the trapezoidal snap-fit ​​block 18. The inclined snap-fit ​​rod 20 is elastic. When the inclined snap-fit ​​rod 20 slides into place, it snaps into the trapezoidal snap-fit ​​block 18, thereby realizing the detachable connection between the base plate 5 and the mounting base 6.

[0038] In this embodiment, as Figure 7 As shown, the main rod 9 has a stud at its end, and an adjusting head 2 is screwed onto the stud. When the adjusting head 2 is not in contact with the cabinet door, the adjusting head 2 can be turned. After the adjusting head 2 moves, it comes into contact with the cabinet door. When the cabinet door is pressed, it is ensured that the cabinet door can squeeze the main rod 9 through the adjusting head 2.

[0039] In this embodiment, as Figure 4 As shown, the inner wall of the outer casing 1 is provided with three battery slots 7, and three battery packs 28 are placed inside the battery slots 7. The battery packs 28 are electrically connected to the circuit board 12. The battery slots 7 limit the battery packs 28 to ensure that the battery packs 28 will not move and will not affect the operation of the bouncer.

[0040] In this embodiment, as Figure 1 and Figure 4As shown, the circuit board 12 is electrically connected to a charging port 3 and a DC power supply port 4. When the cabinet cannot supply power to the DC power supply port 4, the battery pack 28 can be charged by charging devices such as mobile phone chargers and power banks. The charging port 3 is Type-C, which is convenient for charging. For some cabinets with lights or cabinets that can be wired, the DC power supply can be connected to the power supply, and the motor 21 can be directly powered by the DC power supply port 4.

[0041] In this embodiment, as Figure 4 and Figure 5 As shown, the base plate 5 has two support frames on its surface. The guide post 14 is placed on the bracket 17. The support frame and the outer shell 1 clamp the guide post 14, limit the guide post 14, keep the guide post 14 in a straight state, and the switch 10 moves smoothly without getting stuck. The main rod 9 pops out and retracts smoothly.

[0042] In this embodiment, as Figure 4 and Figure 5 As shown, the protective shell 13 has two U-shaped seats 16. The end of the guide post 14 is inserted into the U-shaped seat 16. The cross-section of the end of the guide post 14 is "I" shaped, which can stably engage with the U-shaped seat 16 and prevent the guide post 14 from moving.

[0043] In this embodiment, as Figure 5 As shown, the surface of the switch 10 is provided with an elastic retaining strip 19, and the main rod 9 is sleeved on the surface of the elastic retaining strip 19. It is convenient to install the switch 10 and the main rod 9. The main rod 9 can be directly pressed to sleeve the elastic retaining strip 19, so as to realize the synchronous movement of the switch 10 and the main rod 9.

[0044] In this embodiment, as Figure 7 and Figure 8 As shown, the automatic retraction device includes a motor 21, a torsion bar 22, a nut 23, and a limiting strip 25. The magnet 24 is inserted into the nut 23. The limiting strip 25 is integrally formed with the main rod 9. The nut 23 and the magnet 24 are inserted into the main rod 9. The limiting strip 25 is locked into the limiting port 29 on the surface of the nut 23 to ensure that the nut 23 will not rotate. In order to improve the stability of the retraction of the main rod 9, an opening can be provided on the main rod 9. The magnet 24 is inserted into the nut 23 through the opening and locked in the opening.

[0045] The large size of the spiral groove on the surface of the torsion bar 22 reduces the resistance between the nut 23 and the torsion bar 22. The spring force of the spring 15 is greater than the resistance between the nut 23 and the torsion bar 22. When the nut 23 moves without rotating, the torsion bar 22 can rotate, ensuring that the nut 23 and the torsion bar do not affect the pop-out and retraction of the main rod 9.

[0046] Specifically, when in use, with the cabinet door closed, the main rod 9 retracts into the outer casing 1. At this time, the hook 11 hooks the switch 10, locking the switch 10. The switch 10 and the main rod 9 will not move.

[0047] When opening the cabinet door, first push the cabinet door. The cabinet door pushes the main rod 9 and the switch 10 through the adjusting head 2. The switch 10 is unlocked from the hook 11. The spring 15 pushes the switch 10 and the main rod 9 to move. At this time, the main rod 9 drives the nut 23 to move through the magnet 24. When the nut 23 moves, the torsion rod 22 rotates, which will not delay the pop-out of the main rod 9. The main rod 9 pops out and opens the cabinet door.

[0048] After the main rod 9 pops out, the trigger head 27 moves together with the main rod 9, and the main rod 9 separates from the push switch of the detection board 26. The electrical signal generated by the power-on of the push switch is received by the circuit board 12 (cabinet door open signal) from the detection board 26. The nut 23 moves together with the main rod 9. The magnet 24 located inside the nut 23 moves, causing the Hall switch 30 to maintain detection, which can detect that the main rod 9 has fully popped out. About 3 seconds after the main rod 9 pops out, the circuit board 12 supplies power to the motor 21. The motor 21 controls the twisted rod 22 to rotate. The twisted rod 22 drives the nut 23 to move horizontally. The nut 23 drives the main rod 9 to retract through the magnet 24. The trigger head 27 triggers the push switch again, the motor 21 stops working, and the switch 10 and the main rod 9 retract together.

[0049] After opening the cabinet door, you can close it directly. Because the main rod 9 retracts automatically, the cabinet door closes tightly without having to push it a second time, making closing the cabinet door more convenient and easy.

[0050] When the battery pack 28 is depleted, if the main rod 9 is in the extended position, close the cabinet door and press the cabinet door once. The cabinet door will push the main rod 9 into the outer shell 1 through the adjusting head 2. Since the translation of the nut 23 will drive the twisted rod 22 to rotate, the twisted rod 22 will not affect the retraction of the main rod 9. The battery pack 28 is depleted. The rebound device in this embodiment is intentionally used as an ordinary rebound device.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart bouncer, characterized in that, include: A base plate (5) is provided with a circuit board (12) which is electrically connected to an automatic retractor. A protective shell (13) is installed on the outside of the automatic retractor. The protective shell (13) is connected to an outer shell (1), and the outer shell (1) is connected to the base plate (5). The outer shell (1) has a limit post (8). Two guide posts (14) are provided and installed on the protective shell (13). A switch (10) is slidably connected to the guide post (14). The switch (10) is snapped with a main rod (9). A magnet (24) is provided at the front end of the main rod (9). A spring (15) that holds the switch (10) is sleeved on the main rod (9). A hook (11) is placed in the switch (10). The hook (11) is sleeved on the limiting post (8). The limiting post (8) is inserted into the protective shell (13). The main rod (9) is connected to the automatic retraction device. The detection plate (26) is mounted on the surface of the base plate (5) and is electrically connected to the circuit board (12). The main rod (9) has a trigger head (27) located next to the detection plate (26). After the main rod (9) pops out, the detection plate (26) and the trigger head (27) separate, and the Hall switch (30) at the front end of the detection plate (26) senses that the magnet (24) is in place. The circuit board (12) receives the signal from the detection plate (26) and controls the automatic retraction device to work so that the main rod (9) retracts and resets.

2. The intelligent bouncer according to claim 1, characterized in that: The base plate (5) is connected to the mounting base (6) by a snap-fit ​​connector. The mounting base (6) is detachably connected to the base plate (5) to achieve detachable fixing of the rebounder.

3. The intelligent bouncer according to claim 2, characterized in that: The snap-fit ​​component includes a trapezoidal snap-fit ​​block (18) and an inclined snap-fit ​​rod (20). The trapezoidal snap-fit ​​block (18) is integrally formed with the mounting base (6), and the inclined snap-fit ​​rod (20) is integrally formed with the base plate (5).

4. The intelligent bouncer according to claim 1, characterized in that: The main rod (9) has a stud at its end, and the stud is connected to an adjusting head (2).

5. The intelligent rebound device according to claim 1, characterized in that: The inner wall of the outer casing (1) is provided with three battery slots (7), and three battery packs (28) are placed inside the battery slots (7). The battery packs (28) are electrically connected to the circuit board (12).

6. The intelligent bouncer according to claim 1, characterized in that: The circuit board (12) is electrically connected to a charging port (3) and a DC power supply port (4).

7. The intelligent bouncer according to claim 1, characterized in that: The base plate (5) has two support frames on its surface. The guide post (14) is placed on the bracket (17), and the support frame and the outer shell (1) clamp the guide post (14).

8. The intelligent bouncer according to claim 1, characterized in that: The protective shell (13) has two U-shaped seats (16), and the end of the guide post (14) is inserted into the U-shaped seat (16).

9. The intelligent bouncer according to claim 1, characterized in that: The switch (10) has an elastic clip (19) on its surface, and the main rod (9) is sleeved on the surface of the elastic clip (19).

10. The intelligent bouncer according to claim 1, characterized in that: The automatic retraction device includes a motor (21), a twisted rod (22), a nut (23), and a limiting strip (25). The magnet (24) is inserted into the nut (23). The limiting strip (25) is integrally formed with the main rod (9). The nut (23) and the magnet (24) are inserted into the main rod (9). The limiting strip (25) is locked into the limiting port (29) on the surface of the nut (23).

Citation Information

Patent Citations

  • Rebounding device

    CN219119027U