Buckle type junction box convenient to disassemble and assemble
By employing a dual self-locking structure and detachable fasteners, the problem of easy damage and loosening of the junction box's self-locking structure is solved, achieving stable connection and reduced maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG YILAIDA ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-26
Smart Images

Figure CN224289181U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of junction box technology, and specifically to a snap-on junction box that is easy to assemble and disassemble. Background Technology
[0002] Junction boxes are one of the electrical accessories. Because the wires used in decoration run through conduits, junction boxes are used as transitions at the joints of the wires (such as when the wire is long or the conduit needs to turn a corner). The conduit is connected to the junction box, and the wires inside the conduit are connected in the junction box, which serves to protect and connect the wires.
[0003] Chinese Patent No. CN222147093U discloses a tool-free flip-top waterproof junction box, including a lower flip-top junction box cover and an upper flip-top junction box cover. The lower flip-top junction box cover and the upper flip-top junction box cover are rotatably connected on one side, and a snap-lock structure is provided on the other side of the lower flip-top junction box cover and the upper flip-top junction box cover. The snap-lock structure facilitates the opening or closing of the lower flip-top junction box cover and the upper flip-top junction box cover. A spring-loaded connector and a three-position toggle switch are installed inside the lower flip-top junction box cover. A waterproof structure is provided between the lower flip-top junction box cover and the upper flip-top junction box cover. This utility model facilitates the opening of the junction box for wiring or internal maintenance by rotating the lower flip-top junction box cover and the upper flip-top junction box cover on one side and connecting them on the other side by a snap-lock structure, without the need for tools to remove screws, making disassembly and assembly convenient.
[0004] However, in the above technical solution, the lower cover and upper cover of the flip-top junction box are only connected by rotation on one side, and the other side is connected by a snap-locking structure. This makes it easy to open the junction box for wiring or internal maintenance without the need to remove the screws with tools. However, when using this device, it is only fixed by the cooperation of the connecting plate and the locking block with the slot on the upper cover of the junction box. If the connecting plate and the locking block are damaged or deformed, the entire junction box needs to be replaced, which increases the cost of later maintenance and use. In addition, this structure is prone to loosening and detachment when exposed to external objects. Utility Model Content
[0005] The purpose of this utility model is to address the problems existing in the background technology by proposing a snap-on junction box that is easy to assemble and disassemble.
[0006] The technical solution of this utility model is as follows: A snap-fit junction box that is easy to assemble and disassemble includes a box body, which is rotatably connected to a box cover. The box body has an inlet and an outlet at both ends. A locking assembly consists of a fixed component and a movable component. The fixed component, arranged parallel to each other on the left and right, is connected to the box body. The movable component, also arranged parallel to each other on the left and right, is connected to the box cover. The fixed component consists of a first L-shaped plate and a locking block. The first L-shaped plate is connected to the box body, and one end of the first L-shaped plate is connected to the locking block. The locking block has a limiting groove through which the locking block and the first L-shaped plate pass. The movable component consists of a second L-shaped plate, a self-locking block, and a mating block. The mating block is connected to the box cover and has a mating groove through which the fixed component passes. The second L-shaped plate is connected to the side of the box cover away from the box body, and a self-locking block is connected to the second L-shaped plate. When the locking assembly is in use, the box cover rotates, causing the movable component to approach the fixed component on the box body. After the first L-shaped plate and the locking block are inserted into the mating groove, the second L-shaped plate then inserts into the limiting groove to achieve double self-locking.
[0007] Preferably, the box body consists of a frame and a mounting plate. The frame has a notch, and the mounting plate is detachably connected to the notch on the frame. One side of the mounting plate is connected to a parallel fastener.
[0008] Preferably, the mounting plate has a mounting groove on the side near the frame, and a sealing ring is connected inside the mounting groove.
[0009] Preferably, a sealing gasket is adhered to the side of the box lid near the box body.
[0010] Preferably, the lid has a notch, and a transparent plate is glued to the notch.
[0011] Preferably, both the inlet and outlet ports are equipped with waterproof plugs.
[0012] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:
[0013] In this invention, the two components work together to restrict the separation of the box body and the lid. During the insertion of the first L-shaped plate into the mating groove, it comes into contact with the second L-shaped plate and the self-locking block, causing them to deform elastically. After the first L-shaped plate is inserted into the mating groove, it loses the restriction from the second L-shaped plate and the self-locking block. The second L-shaped plate and the self-locking block are inserted into the limiting groove on the fixing component, thereby forming a double self-locking structure between the first L-shaped plate and the second L-shaped plate. This avoids the problem of ordinary self-locking structures becoming loose and falling off due to external forces and leg contact. At the same time, the fixing component is connected to the mounting plate, and the fixing component can be quickly replaced by disassembling and assembling the mounting plate to reduce later maintenance and usage costs. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the closed state of this utility model;
[0015] Figure 2This is a schematic diagram of the unfolded state of this utility model;
[0016] Figure 3 This is a schematic diagram showing the usage status of the self-locking component;
[0017] Figure 4 This is a schematic diagram of the state during the self-locking action of the self-locking component.
[0018] Reference numerals in the attached drawings: 1. Box body; 2. Box cover; 3. Fixing component; 4. Moving component; 5. First L-shaped plate; 6. Locking block; 7. Limiting groove; 8. Second L-shaped plate; 9. Self-locking block; 10. Mating block; 11. Mating groove; 12. Frame body; 13. Mounting plate; 14. Sealing ring; 15. Sealing gasket; 16. Transparent plate; 17. Waterproof plug. Detailed Implementation
[0019] Example 1
[0020] like Figures 1-4 As shown, the present invention proposes a snap-on junction box that is easy to disassemble and assemble, including a box body 1, a box cover 2 and a locking assembly. The box body 1 is rotatably connected to the box cover 2, and the two ends of the box body 1 are respectively provided with an inlet and an outlet.
[0021] In an optional embodiment, a waterproof plug 17 is connected to both the inlet and outlet ports; the waterproof plug 17 is made of, but is not limited to, rubber and silicone, and has a through hole for the cable to pass through.
[0022] The locking assembly consists of a fixed part 3 and a movable part 4. The fixed part 3, which is arranged in parallel left and right, is connected to the box body 1, and the movable part 4, which is also arranged in parallel left and right, is connected to the box cover 2. The fixed part 3 consists of a first L-shaped plate 5 and a locking block 6. The first L-shaped plate 5 is connected to the box body 1, and one end of the first L-shaped plate 5 is connected to the locking block 6. The locking block 6 has a limiting groove 7 that passes through the locking block 6 and the first L-shaped plate 5. The movable part 4 consists of a second L-shaped plate 8, a self-locking block 9, and a mating block 10. The mating block 10 is connected to the box cover 2 and has a mating groove 11 that passes through the fixed part 3. The second L-shaped plate 8 is connected to the side of the box cover 2 away from the box body 1, and the self-locking block 9 is connected to the second L-shaped plate 8. When the locking assembly is in use, the box cover 2 rotates, causing the movable part 4 to approach the fixed part 3 on the box body 1. After the first L-shaped plate 5 and the locking block 6 are inserted into the mating groove 11, the second L-shaped plate 8 is then inserted into the limiting groove 7 to achieve double self-locking.
[0023] Example 2
[0024] like Figures 2-4As shown, the present invention proposes a snap-on junction box that is easy to disassemble and assemble. Compared with the first embodiment, this embodiment describes the detailed structure of the locking component. The box body 1 is composed of a frame 12 and a mounting plate 13. A notch is provided on the frame 12. The mounting plate 13 is detachably connected to the notch on the frame 12. One side of the mounting plate 13 is connected to a parallel fixing member 3.
[0025] In an optional embodiment, the mounting plate 13 has a mounting groove on the side near the frame 12, and a sealing ring 14 is connected in the mounting groove; the sealing ring 14 is selected from, but is not limited to, an O-ring.
[0026] In an optional embodiment, a sealing gasket 15 is adhered to the side of the lid 2 near the box body 1; the sealing gasket 15 may be made of, but is not limited to, rubber.
[0027] In an optional embodiment, the cover 2 has a notch, and a transparent plate 16 is glued to the notch. The transparent plate 16 is made of acrylic material, but is not limited to acrylic. The transparent plate 16 makes it convenient for staff to see the specific situation inside the junction box, reducing the number of times the junction box is disassembled and reassembled. In scenarios with low explosion-proof requirements, it can be directly observed from the outside, avoiding the potential danger of electric sparks caused by frequent opening of the cover.
[0028] In summary, when using this utility model, the operator passes the cable through the inlet and outlet, connects the cable to the intermediate structure inside the box 1, and then rotates the box cover 2 to close it. When closing, the movable part 4 moves closer to the fixed part 3. When the box cover 2 and the box 1 come into contact, the first L-shaped plate 5 and the locking block 6 will contact the mating groove 11 on the mating block 10. The two cooperate to restrict the separation of the box 1 and the box cover 2. When the first L-shaped plate 5 undergoes elastic deformation and inserts into the mating groove 11, it will contact the second L-shaped plate 8 and the self-locking block 9, pushing them to undergo elastic deformation. After the first L-shaped plate 5 is inserted into the mating groove 11, it loses the restriction of the second L-shaped plate 8 and the self-locking block 9. The second L-shaped plate 8 and the self-locking block 9 are inserted into the limiting groove 7 on the fixed part 3, thereby forming a double self-locking structure of the first L-shaped plate 5 and the second L-shaped plate 8, avoiding the problem of ordinary self-locking structures becoming loose and falling off due to external force and contact.
[0029] 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 thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.
Claims
1. A snap-fit junction box for easy assembly and disassembly, characterized in that, include Box body (1), which is rotatably connected to box cover (2), and the two ends of the box body (1) are respectively provided with inlet and outlet; The locking assembly consists of a fixed part (3) and a movable part (4). The fixed part (3), which is arranged parallel to the left and right, is connected to the box body (1), and the movable part (4), which is arranged parallel to the left and right, is connected to the box cover (2). The fastener (3) consists of a first L-shaped plate (5) and a locking block (6). The first L-shaped plate (5) is connected to the box body (1). One end of the first L-shaped plate (5) is connected to the locking block (6). The locking block (6) has a limiting groove (7) that allows the locking block (6) and the first L-shaped plate (5) to pass through. The movable part (4) consists of a second L-shaped plate (8), a self-locking block (9) and a mating block (10). The mating block (10) is connected to the box cover (2). The mating block (10) has a mating groove (11) that passes through the fixing part (3). The second L-shaped plate (8) is connected to the side of the box cover (2) away from the box body (1). The self-locking block (9) is connected to the second L-shaped plate (8). When the locking assembly is in use, the lid (2) rotates and drives the movable part (4) to approach the fixing part (3) on the box body (1). After the first L-shaped plate (5) and the card block (6) are inserted into the mating groove (11), the second L-shaped plate (8) is then inserted into the limiting groove (7) to achieve double self-locking.
2. The snap-fit junction box according to claim 1, characterized in that, The box body (1) is composed of a frame (12) and a mounting plate (13). The frame (12) has a notch, and the mounting plate (13) is detachably connected to the notch on the frame (12). One side of the mounting plate (13) is connected to a parallel fastener (3).
3. The snap-fit junction box for easy assembly and disassembly according to claim 1, characterized in that, The mounting plate (13) has a mounting groove on the side near the frame (12), and a sealing ring (14) is connected in the mounting groove.
4. The snap-fit junction box for easy assembly and disassembly according to claim 1, characterized in that, A sealing gasket (15) is glued to the side of the lid (2) near the box body (1).
5. A snap-fit junction box for easy assembly and disassembly according to claim 1, characterized in that, A notch is provided on the lid (2), and a transparent plate (16) is glued to the notch.
6. A snap-fit junction box for easy assembly and disassembly according to claim 1, characterized in that, Waterproof plugs (17) are connected to both the inlet and outlet of the cable.