Modularized counter-locking connection cabinet body universal for furniture fish tank

Abstract

The invention discloses a modular counter-locking connection cabinet universal for furniture and fish tanks, and relates to the technical field of furniture manufacturing and precision equipment supporting, the modular counter-locking connection cabinet universal for furniture and fish tanks comprises a frame formed by welding a first pipe and a second pipe, and first door plates on the two sides are detachably connected with the frame through counter-locking screws; a four-folding door is arranged at the front end and formed by hinging four second door plates through hidden hinges, universal wheels with nuts are arranged at the bottoms of the two second door plates in the middle, vertical gravity is directly unloaded to the ground, locking screws only bear guiding force, the bearing function and the guiding function are separated, the door plates are thoroughly prevented from drooping and deforming, and the service life of the door plates is prolonged. The buffer cushion at the bottom of the cabinet body can be matched with the universal wheels to compensate ground unevenness and heavy-load settlement, the vertical face precision is guaranteed, the modular detachable design is adopted, the maintenance cost is greatly reduced, meanwhile, the weather resistance is improved through material grading and surface treatment, and the cabinet is suitable for heavy-load scenes such as high-end fish tank bottom cabinets and laboratory instrument tables.

Description

Technical Field

[0001] This invention relates to the field of furniture manufacturing and precision equipment support technology, and in particular to a modular interlocking cabinet universally applicable to furniture and aquariums. Background Technology

[0002] In the field of high-end furniture and industrial equipment, heavy-duty cabinets serve as the core load-bearing components and are widely used in high-end aquarium cabinets, laboratory instrument tables, industrial cabinets, and other similar applications. These cabinets operate under heavy loads, high humidity, or complex environments for extended periods, placing stringent demands on their structural stability, durability, and maintainability. However, current mainstream heavy-duty cabinet designs still suffer from a core weakness: the high degree of coupling between the load-bearing capacity and the guiding function of the door panels. This issue fundamentally restricts the product's lifespan, maintainability, and environmental adaptability. Traditional heavy-duty cabinet doors are often made of thick materials such as solid wood, sintered stone, or heavy metal. Their load-bearing and guiding functions rely entirely on suspended hinges. The hinges are both the guiding components that enable the door to rotate and the core load-bearing components that bear the vertical weight of the door. This design causes the hinge axis to be subjected to high-intensity shear stress continuously during long-term use, making it prone to plastic deformation. This can lead to a shift in the door's center of gravity, sagging and scraping against the base, and even misalignment of the door seams, resulting in a failure to close tightly. This problem is even more pronounced in scenarios such as aquarium cabinets, where the door also needs to bear the additional load of water and equipment. This not only affects the functionality but also significantly shortens the product's service life. At the same time, this functional coupling design also leads to a highly integrated cabinet structure. Most mainstream high-end cabinets adopt integral welding or gluing processes, and the frame, door panels, side panels and other components form an integral structure that cannot be disassembled. Once local corrosion, scratches or structural damage occur, the whole unit often needs to be scrapped and replaced. The repair cost is extremely high and the cycle is long, which not only wastes resources, but also puts users in a dilemma of replacing rather than repairing when faced with minor damage, which seriously affects the sustainability and market competitiveness of the product. Under heavy load, minor unevenness of the floor or initial settlement of the frame will be directly transmitted to the door panel system. Traditional solutions lack effective settlement compensation and precision adjustment mechanisms, resulting in misalignment of door seams and reduced facade precision, which damages the visual integrity and structural stability of the product and makes it difficult to adapt to complex floor conditions such as laboratories and industrial plants, further limiting the application range of heavy cabinets. This new type of modular interlocking cabinet for furniture and aquariums is an innovative solution proposed to systematically address this core pain point. By reconstructing the mechanical model and structural logic of the cabinet, it achieves physical separation of load-bearing and guiding functions. At the same time, it adopts a modular and detachable design, which fundamentally improves the durability, maintainability and environmental adaptability of heavy-duty cabinets, providing a more competitive technical path for the field of high-end heavy-duty cabinets. Summary of the Invention

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a modular interlocking cabinet that is universal for furniture and aquariums, which can solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a modular interlocking cabinet for furniture and aquariums, comprising a first tube and a second tube, wherein the first tube and the second tube are fixedly connected by welding to form a frame, the second tube being located at the bottom of the frame, and a door panel being provided on both sides of the frame, wherein the first tube and the door panel are provided with the same circular holes at the same positions at the four corners, and interlocking screws are fixedly installed in the circular holes, the first tube and the door panel being fixedly connected by interlocking screws, and a four-fold door being provided at the front end of the first tube.

[0005] Preferably, the four-fold door includes four identical door panels 2, each with an installation groove between adjacent door panels 2, and the same concealed hinge is fixedly installed in the installation groove. Both ends of the concealed hinge are threaded with fasteners, and the concealed hinge and the adjacent door panels 2 are hinged by the fasteners.

[0006] According to the claim, a modular interlocking cabinet for a fish tank is characterized in that: three interlocking screws are provided between each adjacent door panel.

[0007] Preferably, the bottom of the two middle door panels is fixedly connected with casters, and the two casters are arranged symmetrically. Each of the casters is threaded with a nut, and each nut is provided with a metal cylinder.

[0008] Preferably, the second pipe has a rectangular hollow cross-section.

[0009] Preferably, a buffer pad is fixedly installed on the bottom surface of the second pipe.

[0010] Preferably, the locking screw is integrally formed from two circular platforms at both ends and a central circular rod, and the two circular platforms at both ends are of different sizes.

[0011] Compared with the prior art, the beneficial effects of the present invention are: 1. The modular interlocking cabinet of this furniture aquarium is universal. The adjustable metal casters at the bottom directly unload the vertical weight to the ground, eliminating the shear stress generated by the heavy door panel on the hinge, preventing the door panel from deforming or sagging over time, and solving the deformation problem caused by the shear stress of traditional hinges.

[0012] 2. The modular interlocking cabinet of this furniture aquarium can be used for general-purpose connection. The height can be finely adjusted by the nuts on the casters. Together with the buffer pads at the bottom of the cabinet, it can effectively compensate for uneven ground and slight settlement caused by heavy load on the cabinet.

[0013] 3. The modular interlocking cabinet of this furniture aquarium is universal. The frame and door panel are precisely connected by interlocking screws. Damaged parts can be replaced individually without the need for the whole product to be scrapped, which greatly reduces the cost and difficulty of after-sales maintenance and improves the sustainability and market competitiveness of the product. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of a modular interlocking cabinet for a furniture aquarium, as per the present invention. Figure 2 This is a schematic diagram of the bottom of a modular interlocking cabinet for a furniture aquarium, as per the present invention. Figure 3 This is a schematic diagram of a modular interlocking cabinet with concealed hinges, which is universal for furniture and aquariums according to the present invention. Figure 4 This is a schematic diagram of a modular interlocking connection cabinet for a furniture aquarium, according to the present invention; Figure 5 This is a schematic diagram of the locking screws in a modular locking connection cabinet for a furniture aquarium, which is a universal feature of this invention.

[0015] Attached reference numerals: 1. Pipe 1; 2. Door panel 1; 3. Door panel 2; 4. Locking screw; 5. Caster wheel; 6. Buffer pad; 7. Mounting groove; 8. Concealed hinge; 9. Fastener; 10. Nut; 11. Pipe 2. Detailed Implementation

[0016] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0017] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0018] In the description of this invention, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0019] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0020] Please see Figure 1-5 The present invention provides a technical solution: a modular interlocking cabinet for furniture and aquariums, including a first tube 1 and a second tube 11. The first tube 1 and the second tube 11 are fixedly connected by welding to form a frame. The second tube 11 is located at the bottom of the frame. Door panels 2 are provided on both sides of the frame. The first tube 1 and the door panels 2 are provided with the same circular holes at the same positions at the four corners. Interlocking screws 4 are fixedly installed in the circular holes. The first tube 1 and the door panels 2 are fixedly connected by interlocking screws 4. The front end of the first tube 1 is provided with a four-fold door. The four-fold door includes four identical door panels 2 3. Each adjacent door panel 2 3 has a mounting groove 7. The same concealed hinge 8 is fixedly installed in the mounting groove 7. Both ends of the concealed hinge 8 are threaded with fasteners 9. The concealed hinge 8 and the adjacent door panel 2 3 are hinged by the fasteners 9. Each pair of locking screws 4 between adjacent door panels 2 3 is provided with three screws, which only bear the horizontal guiding force and overturning moment, realize the rotation and folding movement of door panel 2 3, do not bear the vertical gravity of door panel 2 3, and completely get rid of the shear stress of traditional hinges. The bottom of the two door panels 23 located in the middle is fixedly connected with casters 5, and the two casters 5 are arranged symmetrically. Each caster wheel 5 is threaded with a nut 10, and each nut 10 is equipped with a metal cylinder, which serves as the main load-bearing component of the second door panel 3, directly unloading the vertical weight of the second door panel 3 to the ground. Pipe 2.11 has a rectangular hollow cross section and is made of 316L austenitic stainless steel. A buffer pad 6 is fixedly installed on the bottom surface of pipe 211. With the height adjustment of the caster wheel 5, it compensates for the unevenness of the ground and the slight settlement under the heavy load of the cabinet, thus improving the overall stability. The locking screw 4 is integrally formed by the circular platforms at both ends and the central round rod. The circular platforms at both ends are of different sizes to provide pre-tightening force for fastening. Pipe 1 is made of 201 stainless steel, and the frame is treated with sandblasting (to increase coating adhesion), pickling (chemical passivation to generate a chromium-rich oxide film) and marine-grade high-performance powder coating. Both door panel 1 (2) and door panel 2 (3) are made of marine-grade high-density multi-layer solid wood board or aluminum honeycomb composite board.

[0021] Working principle: First, the cabinet is formed by welding pipe 1 and pipe 2 11 to form a basic load-bearing frame. The design of the material of pipe 1 is 201 stainless steel and pipe 2 11 is 316L austenitic stainless steel, which takes into account the overall protection of the frame and the heavy-duty corrosion resistance of the bottom. At the same time, the frame is treated with sandblasting, pickling and marine-grade powder coating to further improve weather resistance. The buffer pad 6 at the bottom of the cabinet is reserved in advance for settlement and ground flatness compensation for subsequent heavy use, providing a stable installation and load-bearing base for the overall structure. Next, the pipe 1 and the door panel 2 are precisely fixed and connected by the screw 4. The screw 4 has a structure of circular tabletops with different sizes at both ends and a circular rod in the middle. It forms a pre-tightening force in the circular hole to tighten the frame and the side door panel 2 into a solid overall structure. At the same time, it provides a stable support frame for the installation of the front four-fold door and ensures the overall structural rigidity of the cabinet. Then, the four-fold door at the front of the cabinet is assembled through the mounting groove 7, the concealed hinge 8 and the fastener 9. The adjacent door panels 2 3 are hinged by the concealed hinge 8 to achieve rotation and folding movement. The locking screws 4 configured between the door panels 2 3 only bear the horizontal guiding force and overturning moment, and do not bear the vertical gravity of the door panels 2 3, thus completely avoiding the deformation problem caused by the shear stress of traditional hinges. At the same time, the universal wheels 5 at the bottom of the two middle door panels 2 3 are adjusted in height through the nuts 10 and the metal cylinder, so that the vertical gravity of the door panels 2 3 is directly unloaded to the ground, and the mechanical model of the door panel is changed from a cantilever beam to a simply supported beam, thus decoupling the load-bearing and guiding functions of the door panel. Finally, when the cabinet is put into use, the casters 5 can be flexibly adjusted in height via nuts 10. Together with the buffer pads 6 at the bottom of the cabinet, they can compensate for uneven ground and minor settlement caused by heavy loads on the cabinet in real time, ensuring that the four-fold door panel 2 3 always remains flat and opens and closes smoothly without scratches. At the same time, door panel 1 2 and door panel 2 3 are made of marine-grade high-density multi-layer solid wood board or aluminum honeycomb composite board, which can adapt to the multi-scenario use needs of furniture and aquariums, and ensure the long-term stable operation of the cabinet in different environments.

[0022] Structural Description: Pipe 1: As the main structure of the cabinet frame, it is welded and fixed to Pipe 2 11, providing the installation and load-bearing foundation for components such as door panel 1 2 and four-fold door. It is made of 201 stainless steel, balancing strength and cost. Combined with sandblasting, pickling and marine-grade powder coating triple surface treatment, it improves weather resistance and corrosion resistance, ensuring the long-term stability of the cabinet in high humidity and heavy load environments. Door panel 12: As a closed structure on the side of the cabinet, it is detachably connected to tube 1 by screw 4. It is made of marine-grade high-density multi-layer solid wood board or aluminum honeycomb composite board, with low moisture absorption and expansion rate, suitable for high humidity environment. The modular and detachable design makes it easy to replace and maintain parts and avoid the whole scrap. Locking screw 4: Used to connect pipe 1 and door panel 2, as well as the guide connection between adjacent door panel 3. It is formed by a circular platform of different sizes at both ends and a central circular rod. Pre-tightening force is formed in the circular hole to ensure connection rigidity. At the folding door, it only bears horizontal guiding force and overturning moment, and does not bear vertical gravity, realizing the separation of load-bearing and guiding functions, and avoiding shear stress deformation of traditional hinges. Door panel 2 3: The core component of the four-fold door. Adjacent door panels 2 3 are hinged by concealed hinges 8. The bottom of the two middle door panels 2 3 is equipped with casters 5. They are made of marine-grade high-density multi-layer solid wood boards or aluminum honeycomb composite boards, which are suitable for high humidity and heavy load scenarios. The casters 5 unload the vertical gravity to the ground, preventing the door panel from sagging and deforming, while realizing folding movement and improving space utilization. 5. The casters are fixed to the bottom of the two middle door panels 2 3. The height can be adjusted by the nuts 10. As the main load-bearing component of the door panel 2 3, the vertical gravity is directly unloaded to the ground. The mechanical model is changed from a cantilever beam to a simply supported beam, which completely eliminates the hinge shear stress. The 360° follow-up design adapts to the movement trajectory of the folding door and ensures smooth opening and closing. Buffer pad 6: Installed on the bottom of pipe 211, in conjunction with the height adjustment of caster wheel 5, it can effectively compensate for uneven ground and slight settlement under heavy load of cabinet, improve overall stability, ensure that the four-fold door always remains flat, and avoid misalignment and scratches of door seams; Mounting slot 7: Opened between adjacent door panels 2 3, used to fix concealed hinge 8, providing a precise installation position for concealed hinge 8, ensuring hinge accuracy and movement stability, while realizing the concealed hinge design and improving the integrity of the cabinet appearance. Concealed hinge 8: Installed in the mounting groove 7, it is hinged to the adjacent door panel 2 3 by fastener 9. It only bears the horizontal guiding force and overturning moment, and does not bear the vertical gravity. It realizes the physical separation of the guiding function and the load-bearing function, avoids the deformation caused by shear stress of traditional hinges, and the concealed design takes into account both function and aesthetics. Fastener 9: Used to connect the concealed hinge 8 and the door panel 2 3, ensuring the rigidity and stability of the hinge structure. The detachable design facilitates the maintenance and replacement of the concealed hinge 8, improving the maintainability of the cabinet. Nut 10: Threaded connection to caster 5, integrated metal cylindrical structure, the height of caster 5 can be finely adjusted by rotation, and together with buffer pad 6 to compensate for uneven ground and heavy load settlement, ensuring the facade accuracy of door panel 3. The rigid locking design ensures no loosening after adjustment and maintains long-term stability. Pipe 2 11: Located at the bottom of the frame, it is a 316L austenitic stainless steel structure with a rectangular hollow cross section. It is welded with Pipe 1 1 to form an integral frame. The high corrosion resistance of 316L material is suitable for high humidity scenarios such as aquariums. The rectangular hollow cross section design improves the bottom's torsional resistance and load-bearing capacity, providing a stable base for the support of the buffer pad 6 and the caster wheel 5.

[0023] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A modular interlocking cabinet for furniture aquariums, comprising tube one (1) and tube two (11), characterized in that: The first pipe (1) and the second pipe (11) are fixedly connected by welding to form a frame. The second pipe (11) is located at the bottom of the frame. Door panels (2) are provided on both sides of the frame. The same circular holes are opened at the same positions at the four corners of the first pipe (1) and the first door panel (2). Locking screws (4) are fixedly installed in the circular holes. The first pipe (1) and the first door panel (2) are fixedly connected by locking screws (4). The front end of the first pipe (1) is provided with a four-fold door.

2. The modular interlocking cabinet for furniture aquariums according to claim 1, characterized in that: The four-fold door includes four identical door panels (3). Each adjacent door panel (3) has an installation groove (7). The same concealed hinge (8) is fixedly installed in the installation groove (7). Both ends of the concealed hinge (8) are threaded with fasteners (9). The concealed hinge (8) and the adjacent door panel (3) are hinged by the fasteners (9).

3. A modular interlocking cabinet for furniture aquariums according to claim 2, characterized in that: Three locking screws (4) are provided between each adjacent door panel two (3).

4. A modular interlocking cabinet for furniture aquariums according to claim 3, characterized in that: The bottom of the two door panels (3) located in the middle is fixedly connected with casters (5), and the two casters (5) are symmetrically arranged; Each of the casters (5) is threaded with a nut (10), and each nut (10) is provided with a metal cylinder.

5. A modular interlocking cabinet for furniture aquariums according to claim 4, characterized in that: The second type of pipe (11) has a rectangular hollow cross section.

6. A modular interlocking cabinet for furniture aquariums according to claim 5, characterized in that: A buffer pad (6) is fixedly installed on the bottom surface of the second pipe (11).

7. A modular interlocking cabinet for furniture aquariums according to claim 6, characterized in that: The locking screw (4) is integrally formed by the circular platforms at both ends and the central rod, and the circular platforms at both ends are of different sizes.

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