Cabinet door bulletproof safety structure of tilt-up door opening mechanism

Abstract

A cabinet door bulletproof safety structure of a tilt-up door opening mechanism comprises a base fixed on a cabinet body, the base is connected with a mounting seat through a plurality of swing arms, the swing arms swing relative to the base and the mounting seat to achieve opening and closing of a cabinet door, a containing cavity is formed in the mounting seat, a safety piece is arranged in the containing cavity, and the safety piece is connected with the mounting seat. The safety piece is installed in guide grooves in the two sides of the containing cavity in a sliding mode through guide pieces on the two sides of the safety piece, correspondingly, a locking groove is formed in the swing arm, the release mechanism pushes the safety piece to move towards the locking groove all the time, the safety piece is inserted into the locking groove, and the relative angle between the installation base and the swing arm is locked. The door opening mechanism is prevented from being bounced off accidentally under the non-operation condition.

Description

Technical Field

[0001] This utility model relates to a home hardware accessory, specifically a bulletproof safety structure for a lift-up door opening mechanism cabinet door. Background Technology

[0002] Flip-up door hinges are widely used in cabinets, wardrobes, and other furniture, especially in modern homes where the flip-up door structure is gaining popularity due to its space-saving design and ease of access to items. Existing flip-up door hinges primarily use a spring-assisted mechanism to achieve smooth opening and closing, avoiding the need for excessive force from the user. However, in actual use and installation, this design has also introduced several technical defects and potential safety hazards.

[0003] For example, existing lift-up door hinges typically feature a strong spring-assisted mechanism to balance the weight of the cabinet door and ensure smooth opening and closing. However, in heavy-duty cabinet doors, the spring force is often very high. While this reduces the burden on the user when opening the door, it also introduces potential safety hazards. During installation, if the opening mechanism is accidentally activated, the spring will release rapidly and the swing arm will pop out. This sudden impact can easily cause injury to the user, especially without proper protection, potentially leading to pinching, impact, or other accidents. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of existing technologies and provide a simple, easy-to-use, and non-operational upward-opening door mechanism cabinet door bulletproof safety structure that can lock the swing arm to prevent accidental opening of the swing arm and personal injury.

[0005] The purpose of this utility model is achieved in the following way: a bulletproof safety structure for a cabinet door opening mechanism, which includes a base fixed on the cabinet body. The base is connected to a mounting seat through several swing arms. The swing arms swing relative to the base and the mounting seat to realize the opening and closing of the cabinet door. The mounting seat is provided with a receiving cavity, and a safety plate is provided in the receiving cavity. The safety plate is slidably installed in the guide grooves on both sides of the receiving cavity through guide plates on both sides. Correspondingly, the swing arms are provided with locking grooves. The release mechanism pushes the safety plate to move in the direction of the locking groove, so that the safety plate is inserted into the locking groove, locking the relative angle between the mounting seat and the swing arm, and preventing the opening mechanism from accidentally popping open when not in operation.

[0006] Furthermore, the release mechanism includes a drive block hinged to the mounting base, the drive block having an inclined guide groove, and a guide shaft on the safety plate extending into the inclined guide groove. By prying the drive block, the safety plate is driven to slide in the guide groove through the inclined guide groove and the guide shaft, thereby achieving docking and separation between the safety plate and the locking groove.

[0007] Furthermore, a torsion spring is provided between the drive block and the mounting base. The torsion spring pushes the drive block to swing towards the safety plate, pushing the safety plate into the locking groove.

[0008] Furthermore, the inclined guide groove is offset from the hinge point between the drive block and the mounting base and is located in the head direction of the drive block.

[0009] Furthermore, the tail of the drive block is provided with a trigger block, which extends upward from the upper end surface of the mounting base. Pressing the trigger block causes the head of the drive block to tilt up, pushing the safety plate to separate from the locking groove.

[0010] Furthermore: a sliding groove is vertically provided inside the drive block, the trigger block is slidably installed in the sliding groove, and a reset spring is provided between the bottom of the sliding groove and the drive block, the reset spring pushing the trigger block to always bounce upward.

[0011] Furthermore: the mounting base is equipped with a quick-release bracket that can be detached. The quick-release bracket is installed with the cabinet door, and the cabinet door is installed or removed by connecting to the mounting base through the quick-release bracket.

[0012] Furthermore: the mounting base is provided with a front connecting shaft and a rear elastic buckle. The end face of the quick-release base is provided with a quick-release groove that is inserted into the front connecting shaft and connected to it. The rear elastic buckle is fastened and fixed on the buckle plate of the quick-release base.

[0013] The beneficial effects of this utility model are: 1. Simple structure, low production cost, and improved market competitiveness.

[0014] 2. This utility model achieves a bulletproof safety function by designing a safety plate and locking groove within the mounting base. When the cabinet door is not in operation, the safety plate remains inserted into the locking groove, firmly locking the door in place. This design effectively prevents the swing arm from automatically opening, avoiding safety threats to the surrounding environment and personnel, and is particularly suitable for heavy-duty cabinet door applications.

[0015] 3. This utility model features a specially designed release mechanism that achieves rapid switching between locking and unlocking through the sliding cooperation between the drive block and the safety plate. When the user needs to open the mechanism, they only need to pry the drive block to release the locked state.

[0016] 4. This utility model adopts a multi-protection structure, providing a stable locking effect through the cooperation of the safety plate, guide groove, and drive block. In particular, the design of the angled guide groove makes the safety plate less susceptible to external disturbance during the locking process, further enhancing the stability of the locking.

[0017] 5. This utility model incorporates a quick-release bracket within the mounting base, facilitating rapid installation and removal of the cabinet door. The quick-release bracket achieves rapid fixation via a front connecting shaft and a rear elastic buckle, allowing users to assemble and disassemble the cabinet door without the need for complex tools, reducing installation and maintenance time costs and enhancing convenience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram illustrating the effect of using this utility model and the cabinet door assembly.

[0019] Figure 2 This is a schematic diagram of the door opening mechanism in the open state in this utility model.

[0020] Figure 3 This is a schematic diagram of the door opening mechanism in the closed state in this utility model.

[0021] Figure 4 This is a cross-sectional view of the door opening mechanism in the closed state of this utility model.

[0022] Figure 5 In this utility model Figure 4 Enlarged view of the structure of part A.

[0023] Figure 6 , 7 This is an exploded view of the structure of this utility model. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings. A bulletproof safety structure for a top-opening cabinet door includes a base 1 fixed to the cabinet body. The base 1 is connected to a mounting base 3 via several swing arms 2. The swing arms 2 swing relative to the base 1 and the mounting base 3 to open and close the cabinet door. The mounting base 3 has a receiving cavity 4, and a safety plate 5 is provided within the receiving cavity 4. The safety plate 5 is slidably installed in guide grooves 41 on both sides of the receiving cavity 4 via guide plates 52 on both sides. Correspondingly, the swing arms 2 are provided with locking grooves 21. A release mechanism pushes the safety plate 5 to move continuously towards the locking groove 21, causing the safety plate 5 to insert into the locking groove 21, locking the relative angle between the mounting base 3 and the swing arms 2, thus preventing the opening mechanism from accidentally opening when not in operation.

[0025] In one embodiment: the release mechanism includes a drive block 6 hinged to the mounting base 3, the drive block 6 having an inclined guide groove 61, and a guide shaft 51 on the safety plate 5 extending into the inclined guide groove 61. By prying the drive block 6, the safety plate 5 is driven to slide in the guide groove 41 through the inclined guide groove 61 and the guide shaft 51, thereby realizing the docking and separation of the safety plate 5 and the locking groove 21.

[0026] In one embodiment: a torsion spring 7 is provided between the drive block 6 and the mounting base 3. The torsion spring 7 pushes the drive block 6 to swing towards the safety piece 5, pushing the safety piece 5 into the locking groove 21.

[0027] In one embodiment: the inclined guide groove 61 is offset from the hinge point between the drive block 6 and the mounting base 3 and is located in the head direction of the drive block 6.

[0028] In one embodiment: the tail of the drive block 6 is provided with a trigger block 8, which extends upward from the upper end surface of the mounting base 3. Pressing the trigger block 8 causes the head of the drive block 6 to tilt up, pushing the safety piece 5 to separate from the locking groove 21.

[0029] In one embodiment: a sliding groove 62 is vertically provided inside the drive block 6, and the trigger block 8 is slidably installed in the sliding groove 62. A reset spring 63 is provided between the bottom of the sliding groove 62 and the drive block 6, and the reset spring 63 pushes the trigger block 8 to bounce upwards.

[0030] In one embodiment: a quick-release bracket 9 is detachably installed inside the mounting base 3. The quick-release bracket 9 is installed with the cabinet door, and the cabinet door is installed or removed by connecting with the mounting base 3 through the quick-release bracket 9.

[0031] In one embodiment: the mounting base 3 is provided with a front connecting shaft 31 and a rear elastic buckle 32. The end face of the quick-release base 9 is provided with a quick-release groove 91 that is inserted into the front connecting shaft 31 and connected thereto. The rear elastic buckle 32 is snapped onto the buckle plate 92 of the quick-release base 9 for fixation.

[0032] Working principle: The base 1 of this utility model is connected to the mounting base 3 via a swing arm 2. The swing arm can swing relative to the base and the mounting base, thereby realizing the upward opening and closing function of the cabinet door. This hinge structure makes the cabinet door move smoothly during opening and closing, avoiding the jamming problem caused by improper design of traditional upward door hinges.

[0033] The mounting base 3 has a receiving cavity 4 inside, which contains a safety plate 5. The safety plate is slidably mounted in the guide grooves 41 on both sides of the receiving cavity 4 via guide plates 52 on both sides. The safety plate cooperates with the locking groove 21 on the swing arm to perform a locking function.

[0034] When the cabinet door is closed, the release mechanism pushes the safety plate 5 to move towards the locking groove 21, causing the safety plate to automatically insert into the locking groove 21 and lock the angle between the mounting base 3 and the swing arm 2. This ensures that the cabinet door remains closed when not in operation, preventing accidental opening. The cooperation between the safety plate and the locking groove achieves automatic locking of the cabinet door, preventing accidental opening when not in operation and improving production safety.

[0035] The release mechanism includes a drive block 6 hinged to the mounting base 3. The drive block has an inclined guide groove 61 inside, and a guide shaft 51 on the safety plate extends into the inclined guide groove. When the user needs to open the door, they can press the drive block, and the relative sliding action of the inclined guide groove and the guide shaft will push the safety plate 5 to slide back within the guide groove 41, thereby separating the safety plate from the locking groove 21 and releasing the cabinet door from its locked state.

[0036] The structure cleverly utilizes a slanted guide groove design, allowing the unlocking operation to be completed with just a simple pry, avoiding the inconvenience of unlocking traditional locking mechanisms and improving the convenience of the user experience.

[0037] To ensure the stability of the safety pin during locking, a torsion spring 7 is installed between the drive block 6 and the mounting base 3. The torsion spring generates a continuous elastic force, pushing the drive block to swing towards the safety pin, ensuring that the safety pin automatically inserts into the locking groove when closed. Therefore, the torsion spring design enhances the locking stability of the safety pin, allowing the cabinet door to remain closed even when subjected to external forces, reducing safety hazards during use.

[0038] Additionally, a trigger block 8 is installed at the tail of the drive block 6. When the user presses the trigger block, the head of the drive block tilts up, separating the safety plate from the locking groove, allowing the door opening mechanism to open. The trigger block is slidably installed in the sliding groove 62 of the drive block, and a return spring 63 is provided between the bottom of the sliding groove and the drive block to ensure that the trigger block automatically returns to its initial position after pressing.

[0039] To facilitate the installation and removal of cabinet doors, this invention incorporates a quick-release bracket 9. The quick-release bracket is fixed to the mounting base 3 via a front connecting shaft 31 and a rear elastic buckle 32. The end face of the quick-release bracket has a quick-release groove 91, which engages with the front connecting shaft for connection. The rear elastic buckle secures itself to the buckle plate 92 of the quick-release bracket, ensuring a tight fit between the quick-release bracket and the mounting base. This quick-release bracket design simplifies the installation and maintenance process, allowing users to quickly disassemble and replace cabinet doors without complex tools, facilitating future maintenance and adjustments, and improving operational convenience.

[0040] It should be noted that when the quick-release bracket 9 is installed, it continuously presses down on the trigger block 8, keeping the safety plate separated from the locking groove. In this state, the mechanism functions normally since the cabinet door is already installed. When the cabinet door is removed via the quick-release bracket, the trigger block releases pressure and resets, causing the safety plate to re-insert into the locking groove, locking the swing arm angle and preventing accidental opening of the door mechanism without the cabinet door installed, thus avoiding injury. Furthermore, because the trigger block applies force to the drive block via a return spring, there is a certain elastic deformation distance between the trigger block and the drive block, resulting in a longer working stroke for the drive block and thus reducing the manufacturing precision requirements of related components.

[0041] In summary, the bulletproof safety structure of this utility model's upward-opening cabinet door mechanism achieves automatic locking and convenient unlocking through the coordinated operation of the safety plate, drive block, torsion spring, and quick-release seat, ensuring the safety of the opening mechanism in non-operational states. Its unique locking design, automatic reset function, and quick-release structure provide users with excellent safety and convenient operation, making it particularly suitable for heavy-duty cabinet door applications and giving it strong application value and competitiveness in the market.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A bulletproof safety structure for a cabinet door with an upward-opening mechanism, comprising a base (1) fixed on the cabinet body, the base (1) being connected to a mounting base (3) via several swing arms (2), the swing arms (2) swinging relative to the base (1) and the mounting base (3) to realize the opening and closing of the cabinet door, characterized in that: The mounting base (3) is provided with a receiving cavity (4), and a safety plate (5) is provided in the receiving cavity (4). The safety plate (5) is slidably installed in the guide grooves (41) on both sides of the receiving cavity (4) via guide plates (52) on both sides. Correspondingly, a locking groove (21) is provided on the swing arm (2). The release mechanism pushes the safety plate (5) to move towards the locking groove (21) at all times, so that the safety plate (5) is inserted into the locking groove (21) to lock the relative angle between the mounting base (3) and the swing arm (2) and prevent the door opening mechanism from accidentally opening when not in operation.

2. The bulletproof safety structure for an upward-opening cabinet door according to claim 1, characterized in that: The release mechanism includes a drive block (6) hinged in the mounting base (3). The drive block (6) is provided with an inclined guide groove (61). The guide shaft (51) on the safety plate (5) extends into the inclined guide groove (61). By prying the drive block (6), the safety plate (5) is driven to slide in the guide groove (41) through the inclined guide groove (61) and the guide shaft (51), thereby realizing the docking and separation of the safety plate (5) and the locking groove (21).

3. The bulletproof safety structure for an upward-opening cabinet door according to claim 2, characterized in that: A torsion spring (7) is provided between the drive block (6) and the mounting base (3). The torsion spring (7) pushes the drive block (6) to swing towards the safety piece (5) and pushes the safety piece (5) into the locking groove (21).

4. The bulletproof safety structure for an upward-opening cabinet door according to claim 2, characterized in that: The oblique guide groove (61) is offset from the hinge point between the drive block (6) and the mounting base (3) and is located in the head direction of the drive block (6).

5. The bulletproof safety structure for an upward-opening cabinet door according to claim 4, characterized in that: The tail of the drive block (6) is provided with a trigger block (8). The trigger block (8) extends upward from the upper end surface of the mounting base (3). Pressing the trigger block (8) causes the head of the drive block (6) to lift up, pushing the safety piece (5) to separate from the locking groove (21).

6. The bulletproof safety structure for an upward-opening cabinet door according to claim 5, characterized in that: The drive block (6) is provided with a vertical sliding groove (62), and the trigger block (8) is slidably installed in the sliding groove (62). A reset spring (63) is provided between the bottom of the sliding groove (62) and the drive block (6), and the reset spring (63) pushes the trigger block (8) to bounce upwards.

7. A bulletproof safety structure for a cabinet door with an upward-opening mechanism according to any one of claims 1 to 6, characterized in that: The mounting base (3) is equipped with a quick-release bracket (9) which is detachable. The quick-release bracket (9) is installed with the cabinet door, and the cabinet door is installed or removed by connecting the quick-release bracket (9) with the mounting base (3).

8. The bulletproof safety structure for an upward-opening cabinet door according to claim 7, characterized in that: The mounting base (3) is provided with a front connecting shaft (31) and a rear elastic buckle (32). The end face of the quick-release base (9) is provided with a quick-release groove (91) which is inserted into the front connecting shaft (31) and connected to it. The rear elastic buckle (32) is snapped onto the buckle plate (92) of the quick-release base (9) for fixation.

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