A self-resetting cabinet door rebound device

Abstract

A self-resetting cabinet door rebound device is characterized by comprising a main body installed inside the cabinet and a latch installed on the cabinet door; wherein the latch includes a base fixed to the cabinet door, and a locking pin is oscillatingly installed on the base, the locking pin being connected to the main body; wherein the main body includes an upper cover, a lower cover, and a receiving cavity disposed between the two, a main arm telescopically installed within the receiving cavity, and a clamp at the front end of the main arm clamping or separating from the locking pin; a synchronous gear is also rotatably installed within the receiving cavity, with a trigger rack and a rebound rack respectively disposed on the left and right sides of the synchronous gear, a locking hook at the top of the rebound rack, and a hanging pin disposed on the locking hook, the hanging pin sliding within a locking groove and a reset groove within the receiving cavity. The beneficial effect of this invention is that after the cabinet door is opened, the main arm of the rebound device retracts inward into the cabinet, ensuring the neatness of the cabinet door after opening.

Description

Technical Field

[0001] This invention relates to a hardware accessory, specifically a self-resetting cabinet door rebound device. Background Technology

[0002] Cabinet door springs are a common accessory used in furniture. Nowadays, cabinet doors are not fitted with handles on the outside to avoid affecting the appearance, which makes the doors difficult to open. Cabinet door springs are used to open and close cabinets, drawers, and other furniture. After installing the springs inside the cabinet, there is no need to use a handle when opening and closing the cabinet door. You can simply press the door panel to open and close the door.

[0003] Therefore, Chinese patents such as 2022307028925, 2023208935933, 2022206958796, 2021101160281, and 2022215401847 have proposed related structures for cabinet door rebound mechanisms, enabling the cabinet door to be opened by pressing after it is closed, thus eliminating the need for a handle and maintaining the cabinet door's aesthetic appeal. However, in the above structures, the rebound mechanism protrudes from the cabinet's end face after the door is opened. When the door is closed, pressing the door retracts the rebound mechanism. Therefore, when the user opens the door, the protruding rebound mechanism is easily bumped, causing inconvenience. Furthermore, the extended rebound mechanism also affects the overall neatness and aesthetics of the cabinet. Therefore, further improvements are necessary. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a cabinet door rebound device that is simple in structure, easy to use, and can retract into the cabinet body after the cabinet door is opened, keeping the cabinet body neat and beautiful.

[0005] The objective of this invention is achieved in the following way: a self-resetting cabinet door rebound device, which includes a main body installed inside the cabinet and a latch installed on the cabinet door;

[0006] The latch includes a base fixed to the cabinet door, and a locking pin is swayably mounted on the base, with the locking pin connected to the main body.

[0007] The main body includes an upper cover, a lower cover, and a receiving cavity between the two. A main arm is telescopically installed in the receiving cavity. A clamp and a locking pin are provided at the front end of the main arm to hold or separate the main arm. A synchronous gear is also rotatably installed in the receiving cavity. A trigger rack and a rebound rack are respectively provided on the left and right sides of the synchronous gear. A locking hook is provided at the top of the rebound rack. A hanging pin is provided on the locking hook. The hanging pin slides in the locking groove and the reset groove in the receiving cavity.

[0008] A first tension spring is provided between the rebound rack and the receiving cavity, and the first tension spring pulls the rebound rack to always move in the closing direction; a second tension spring is provided between the main arm body and the receiving cavity, and the second tension spring pulls the main arm body to always move in the closing direction.

[0009] The clamp includes a first clamp body and a second clamp body that are linked together. One clamp body is connected to a drive mechanism located at the tail of the main arm body through a linkage device. The drive mechanism cooperates with the linkage device to drive the clamp to open or close.

[0010] The first and second clamps are hinged to the main arm body. The opposing surfaces of the first and second clamps are provided with intermeshing synchronous teeth, which drive the first and second clamps to perform synchronous opening and closing actions.

[0011] A connecting arm extends rearward from either the first or second clamp body, and the connecting arm is connected to the linkage device.

[0012] The locking hook is mounted on the top of the rebound rack with a swing hinge. The side wall of the locking hook has a side hook that is linked to the drive mechanism.

[0013] The tail of the trigger rack extends toward the main arm body and is provided with a push block. When the main arm body moves inward, the push block is used to press the trigger rack to drive its movement.

[0014] The accommodating cavity is provided with a first slide and a second slide, and the trigger rack and the rebound rack are slidably installed in the first slide and the second slide.

[0015] The linkage device is a drive block that is slidably installed in the main arm body. A pressing block is provided at the rear end of the drive block. The pressing block extends out of the rear end of the main arm body. The pressing block and the side hook hook push the drive block to perform telescopic movement. The inner end of the drive block is connected to the clamp through a connecting rod. When the drive block moves, it pushes the clamp to perform opening and closing actions.

[0016] The connecting rod is provided with hanging posts at both ends, and the hanging posts are respectively hinged to the drive block and the clamp hook.

[0017] A rebound pressure plate is installed in the cavity corresponding to the locking groove. The rebound spring pushes the rebound pressure plate to move inward toward the locking groove, and pushes the locking hook to move toward the reset groove.

[0018] The side wall of the main arm is provided with a buffer rack that meshes with a buffer gear located in the accommodating cavity.

[0019] The beneficial effects of this invention are: 1. Simple structure, low production cost, and improved market competitiveness. 2. After the cabinet door is opened, the main arm of the rebound device retracts inward into the cabinet body, ensuring the neatness of the cabinet door after opening. 3. When used with a self-resetting hinge, it can realize the press-rebound opening of the cabinet door after it is closed, so the cabinet door does not need to be equipped with a handle, ensuring the neatness and aesthetics of the cabinet door exterior. Attached Figure Description

[0020] Figure 1 , 2 The invention is shown in the diagram of its assembly and use with the cabinet body and doors.

[0021] Figure 3 Assembly rendering of the invention.

[0022] Figure 4-7 Assembly diagram of the structure of this invention.

[0023] Figure 8 The rebound device in this invention is shown in the assembly diagram when it is in the closed position.

[0024] Figure 9 This is a schematic diagram of the rebound device in the press-triggered state in this invention.

[0025] Figure 10 , 11 A schematic diagram of the structure of the rebounder in the rebound state in this invention.

[0026] Figure 12 A schematic diagram of the structure of the rebounder in the rebound state in this invention.

[0027] Figure 13 A schematic diagram of the structure of the rebounder in the retracted state in this invention. Detailed Implementation

[0028] The invention will now be further described in detail with reference to the accompanying drawings. A self-resetting cabinet door rebound device includes a main body installed inside the cabinet body 1 and a latch 3 installed on the cabinet door 2;

[0029] The latch 3 includes a base 31 fixed to the cabinet door 2, and a locking pin 32 is swayably mounted on the base 31. The locking pin 32 is connected to the main body.

[0030] The main body includes an upper cover 4, a lower cover 41, and a receiving cavity 5 located between the two. A main arm 6 is telescopically installed in the receiving cavity 5. A clamp 7 is provided at the front end of the main arm 6 to clamp or separate from the locking pin 32. A synchronous gear 8 is also rotatably installed in the receiving cavity 5. A trigger rack 81 and a rebound rack 82 are respectively provided on the left and right sides of the synchronous gear 8. A locking hook 83 is provided at the top of the rebound rack 82. A hanging pin 84 is provided on the locking hook 83. The hanging pin 84 slides in the locking slide groove 51 and the reset slide groove 52 in the receiving cavity 5.

[0031] A first tension spring 53 is provided between the rebound rack 82 and the accommodating cavity 5. The first tension spring 53 pulls the rebound rack 82 to always move in the closing direction. A second tension spring 54 is provided between the main arm body 6 and the accommodating cavity 5. The second tension spring 54 pulls the main arm body 6 to always move in the closing direction.

[0032] The clamp 7 includes a first clamp body 71 and a second clamp body 72 that are linked together. One clamp body is connected to a drive mechanism located at the tail of the main arm body 6 via a linkage device. The drive mechanism cooperates with the linkage device to drive the clamp 7 to open or close.

[0033] The first clamp body 71 and the second clamp body 72 are hinged to the main arm body 6. The opposing surfaces of the first clamp body 71 and the second clamp body 72 are provided with intermeshing synchronous teeth 73, which drive the first clamp body 71 and the second clamp body 72 to perform synchronous opening and closing actions.

[0034] A connecting arm 74 extends rearward from the first clamp body 71 or the second clamp body 72, and the connecting arm 74 is connected to the linkage device.

[0035] The locking hook 83 is pivotally hinged to the top of the rebound rack 82, and a side hook 85 extends from the side wall of the locking hook 83. The side hook 85 is linked with the drive mechanism.

[0036] The tail of the trigger rack 81 extends toward the main arm body and is provided with a push block 86. When the main arm body 6 moves inward, the push block 86 presses the trigger rack 81 to drive its movement.

[0037] The accommodating cavity 5 is provided with a first slide rail 55 and a second slide rail 56, and the trigger rack 81 and the rebound rack 82 are slidably installed in the first slide rail 55 and the second slide rail 56.

[0038] The linkage device is a drive block 61 that is slidably installed inside the main boom body 6. A pressing block 62 is provided at the rear end of the drive block 61. The pressing block 62 extends out of the rear end of the main boom body 6. The pressing block 62 is hooked to the side hook 85 to push the drive block 61 to perform telescopic movement. The inner end of the drive block 61 is connected to the clamp 7 through the connecting rod 63. When the drive block 61 moves, it pushes the clamp 7 to perform opening and closing actions.

[0039] The connecting rod 63 is provided with hanging posts 64 at both ends, and the hanging posts 64 are respectively hinged to the drive block 61 and the clamp hook.

[0040] A rebound pressure plate 57 is installed in the accommodating cavity 5 at the position corresponding to the locking slide groove 51. The rebound spring pushes the rebound pressure plate 57 to move inward toward the locking slide groove 51, and pushes the locking hook 83 to move toward the reset slide groove 52.

[0041] The side wall of the main arm body 6 is provided with a buffer rack 58 that meshes with a buffer gear 59 provided in the accommodating cavity 5.

[0042] Working principle: such as Figure 1 , 2 As shown, the rebound device in this case includes a main body installed inside the cabinet 1 and a latch 3 installed on the cabinet door 2; the cabinet door is connected by a hinge with a self-resetting function.

[0043] like Figure 8 As shown, under normal conditions, the cabinet door is closed by the self-resetting hinge 11 and maintains the airtightness of the cabinet door. In this state, the locking pin of the latch presses against the clamp on the end face of the main arm body.

[0044] like Figure 9 As shown, when the user presses the cabinet door, the latch pushes the main arm body inward to retract. The main arm body presses against the push block 86 of the trigger rack with its tail. The push block 86 presses the trigger rack 81. When the trigger rack 81 moves inward, the synchronous gear 8 pushes the rebound rack outward, thereby pushing the locking hook 83 outward. The locking hook causes the hanging pin to disengage from the locking slide groove 51 and enter the reset slide groove 52. After the hanging pin enters the reset slide groove 52, the hanging pin loses its locking of the locking hook 83 and the rebound rack 82. The locking hook 83 and the rebound rack 82 move inward under the action of the first tension spring 53. When the rebound rack 82 moves inward, it synchronously drives the synchronous gear 8 to rotate. When the synchronous gear 8 rotates, it drives the trigger rack 81, which meshes with it, to slide outward. The trigger rack uses the drive block 61 at its tail to push the main arm body 6 outward, thereby opening the cabinet door outward.

[0045] like Figure 10 , 11As shown, when the main arm body is pushed outward for a certain distance, the locking hook 83 is engaged with the pressing block 62, and the engagement pushes the drive block 61 to perform telescopic movement; the inner end of the drive block 61 is connected to the clamp 7 through the connecting rod 63. When the drive block 61 moves inward, it pushes the clamp 7 to close, so that it is clamped and fixed on the locking post 32 of the lock buckle 3.

[0046] like Figure 12 As shown, when the user opens the cabinet door, because the clamp 7 is closed and held by the locking pin 32, the opening force will continue to pull the main arm 6 outward. When the door reaches a certain angle, the main arm 6 moves outward to its maximum stroke. The main arm uses the pressing block 62 at its tail to pull the locking hook outward. Under the action of the lateral thrust, the locking hook is forced to swing sideways and separate from the pressing block 62, and the hanging pin on it re-enters the locking groove from the reset groove 52. When the locking hook resets, it pulls the first tension spring 53 to stretch, preparing for the next rebound.

[0047] It should be noted that after the locking hook sways and separates from the pressing block 62, the pressing block 62 loses its tension. Under the action of the door opening pull, the clamp opens, the clamp separates from the locking pin 32, and the cabinet door can continue to open. Meanwhile, the main arm 6 retracts inward and resets under the action of the second tension spring 54.

[0048] like Figure 13 As shown, when the cabinet door is fully opened, the main arm 6 retracts inward to its original position under the action of the second tension spring 54. Therefore, compared with traditional technology, the rebound device in this case retracts the main arm into the cabinet when the cabinet door is open, which helps to maintain the neatness of the cabinet door after it is opened. This avoids the situation where users are prone to bumping into the door opener when using traditional door openers. While meeting its usage requirements, it also maintains its aesthetic appeal during use.

[0049] like Figure 8 As shown, when the cabinet door in this case needs to be closed, the user only needs to manually close the cabinet door to a certain angle. Under the action of the self-resetting hinge 11, the cabinet door will automatically push to close, maintaining the airtightness of the cabinet door. When the cabinet door is closed, the latch on the cabinet door will contact the main body through its locking pin, preparing for the next press to open.

[0050] 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 self-resetting cabinet door rebound device, characterized in that: It includes the main body installed inside the cabinet (1) and the latch (3) installed on the cabinet door (2); The latch (3) includes a base (31) fixed to the cabinet door (2), and a locking post (32) is swayably installed on the base (31), and the locking post (32) is connected to the main body; The main body includes an upper cover (4), a lower cover (41), and a accommodating cavity (5) between the two. The accommodating cavity (5) is telescopically installed with a main arm body (6). The front end of the main arm body (6) is provided with a clamp (7) and a locking pin (32) for clamping or separation. The accommodating cavity (5) is also rotatably installed with a synchronous gear (8). The left and right sides of the synchronous gear (8) are respectively provided with a trigger rack (81) and a rebound rack (82). The top of the rebound rack (82) is provided with a locking hook (83). The locking hook (83) is provided with a hanging pin (84). The hanging pin (84) slides in the locking groove (51) and the reset groove (52) in the accommodating cavity (5). A first tension spring (53) is provided between the rebound rack (82) and the accommodating cavity (5), and the first tension spring (53) pulls the rebound rack (82) to always move in the closing direction; a second tension spring (54) is provided between the main arm body (6) and the accommodating cavity (5), and the second tension spring (54) pulls the main arm body (6) to always move in the closing direction; The clamp (7) includes a first clamp body (71) and a second clamp body (72) that are linked together. One clamp body is connected to a drive mechanism located at the tail of the main arm body (6) through a linkage device. The drive mechanism cooperates with the linkage device to drive the clamp (7) to open or close. The locking hook (83) is hinged to the top of the rebound rack (82), and a side hook (85) extends from the side wall of the locking hook (83), which is linked to the drive mechanism. The linkage device is a sliding drive block (61) installed in the main boom body (6). A pressing block (62) is provided at the rear end of the drive block (61). The pressing block (62) extends out of the rear end of the main boom body (6). The pressing block (62) is hooked with the side hook (85) to push the drive block (61) to perform telescopic movement. The inner end of the drive block (61) is connected to the clamp (7) through the connecting rod (63). When the drive block (61) moves, it pushes the clamp (7) to perform opening and closing actions.

2. The self-resetting cabinet door rebound device according to claim 1, characterized in that: The first clamp (71) and the second clamp (72) are hinged to the main arm body (6). The opposing surfaces of the first clamp (71) and the second clamp (72) are provided with intermeshing synchronous teeth (73), which drive the first clamp (71) and the second clamp (72) to perform synchronous opening and closing actions.

3. The self-resetting cabinet door rebound device according to claim 1, characterized in that: A connecting arm (74) extends rearward from the first clamp (71) or the second clamp (72), and the connecting arm (74) is connected to the linkage device.

4. The self-resetting cabinet door rebound device according to claim 1, characterized in that: The tail of the trigger rack (81) extends toward the main arm body and is provided with a push block (86). When the main arm body (6) moves inward, the push block (86) presses the trigger rack (81) to drive its movement.

5. A self-resetting cabinet door rebound device according to claim 1, characterized in that: The accommodating cavity (5) is provided with a first slide (55) and a second slide (56), and the trigger rack (81) and the rebound rack (82) are slidably installed in the first slide (55) and the second slide (56).

6. A self-resetting cabinet door rebound device according to claim 1, characterized in that: The connecting rod (63) is provided with hanging posts (64) at both ends, and the hanging posts (64) are respectively hinged to the drive block (61) and the clamp hook.

7. A self-resetting cabinet door rebound device according to claim 1, characterized in that: A rebound pressure plate (57) is installed in the cavity (5) corresponding to the locking groove (51). The rebound spring pushes the rebound pressure plate (57) to move inward toward the locking groove (51) and pushes the locking hook (83) to move toward the reset groove (52).

8. A self-resetting cabinet door rebound device according to claim 1, characterized in that: The side wall of the main arm body (6) is provided with a buffer rack (58) that meshes with a buffer gear (59) provided in the accommodating cavity (5).

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