Waterproof and sun-proof outdoor junction box
By designing a flexible rubber ring, an elastic guiding structure, and a closed structure, the problem of easy damage to the waterproof ring of the junction box is solved, achieving higher waterproof performance and service life, and ensuring electrical safety.
Patent Information
- Application Number
- CN202422407813.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The waterproof rings of existing electrical junction boxes are easily damaged by tightening screws, which shortens the service life of the junction box and poses safety hazards such as water and air leakage.
It adopts a flexible rubber ring and elastic guiding structure to seal the gap between the top cover and the bottom shell through friction, and uses a sealing structure to seal the gap of the conduit, combined with a sun protection plate to improve waterproof and sun protection performance.
It effectively improves the waterproofness and service life of the junction box, reduces the risk of damage to the rubber flexible ring, and ensures the safety and reliability of electrical appliances.
Smart Images
Figure CN223487791U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of junction box technology, and in particular to a waterproof and sun-proof outdoor junction box. Background Art
[0002] The use of electricity at indoor and outdoor construction sites and the charging of outdoor electrical appliances are becoming increasingly common, and mobile power usage scenarios are also increasing. Since construction sites are often dusty and sandy, and outdoor electrical appliances may be charged in the rain, problems such as power obstruction or electrical safety often occur due to the poor protection performance of electrical connectors.
[0003] To achieve good waterproofing, existing electrical junction boxes typically use screws to install the top cover and bottom plate, with a waterproof ring between them. The waterproofing is achieved by tightening the screws to press the waterproof ring between the top cover and bottom plate.
[0004] However, this method can cause significant damage to the waterproof ring, making it prone to breakage. This severely reduces the lifespan of the junction box, making it susceptible to air and water leaks when reused, which can pose safety hazards. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a waterproof and sunproof outdoor junction box in order to solve the technical problems mentioned in the background art.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0007] A waterproof and sun-proof outdoor junction box includes a bottom shell, an upper cover fitted on the upper end of the bottom shell, a sealing structure provided on the inner wall of the upper cover near the bottom side, and elastic guide structures provided at the four corners of the inside of the bottom shell.
[0008] The sealing structure includes several flexible rubber rings, which are fixedly connected to the inner wall of the top cover. The inner ring wall of the flexible rubber rings is provided with anti-slip grooves.
[0009] The elastic guide structure includes a fixed sleeve, an extension spring, and a guide rod. The fixed sleeve is fixedly connected to the inner bottom wall of the bottom shell, the bottom end of the extension spring is fixedly connected to the bottom wall of the fixed sleeve, and the bottom end of the guide rod is fixedly connected to the top end of the extension spring. The guide rod is inserted into the interior of the fixed sleeve and is slidably connected to the fixed sleeve.
[0010] The bottom shell is equipped with a cable clamp, and there are connecting pipes on both sides of the cable clamp. The connecting pipes are equipped with electric clamps.
[0011] Furthermore, the rubber flexible ring is rectangular in shape, and the inner wall of the rubber flexible ring is in close contact with the outer wall of the bottom shell, and the distance between two adjacent rubber flexible rings is equal.
[0012] Furthermore, the height between the lowest and highest rubber flexible rings is less than the sliding stroke of the elastic guide structure.
[0013] Furthermore, the bottom shell has several positioning holes at the positions corresponding to the wiring pipe on its two end walls, and the inner wall of the positioning holes has internal threads. The top cover has a locking hole at the position corresponding to the positioning hole, and the positioning hole and the locking hole are coaxially arranged when the bottom wall of the top cover is flush with the bottom wall of the bottom shell.
[0014] Furthermore, the positioning hole is provided with a threaded tube, the threaded tube has a closed structure inside, and the outer peripheral wall of the threaded tube is provided with an external thread that mates with the internal thread.
[0015] Furthermore, the sealing structure includes an annular ring, a pushing ring, and a sealing rubber. The annular ring is fixedly connected to one end of the conduit near the inside of the bottom shell. The pushing ring is threaded into the inside of the conduit. The sealing rubber is disposed inside the conduit and located between the annular ring and the conduit.
[0016] Furthermore, a sunshade plate is provided at the top of the cover, and a sealing cavity is provided on the bottom wall of the sunshade plate.
[0017] In summary, this utility model has at least one of the following beneficial technical effects:
[0018] 1. This waterproof and sun-proof outdoor junction box uses an elastic guide mechanism to push the top cover upward, causing the rubber flexible ring to contact the outer wall of the bottom shell again. Through the friction between the rubber flexible ring and the bottom shell, the rubber flexible ring forms a downward arc, thereby sealing the gap between the top cover and the bottom shell, improving the waterproof performance of the junction box, and effectively reducing the pressure on the rubber flexible ring to prevent damage and extend the service life of the junction box.
[0019] 2. In this waterproof and sun-proof outdoor junction box, when the wire is inserted into the conduit, the wire is first passed through the push ring, the sealing rubber and the ring. After the wire is inserted, the push ring is rotated, which causes the sealing rubber to deform. After the sealing rubber is deformed, it will make close contact with the outer wall of the wire to achieve the purpose of sealing the conduit. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a structural schematic diagram of a waterproof and sun-proof outdoor junction box according to the present invention.
[0022] Figure 2 This is a schematic diagram of the bottom shell of a waterproof and sun-proof outdoor junction box according to the present invention.
[0023] Figure 3 This is a schematic diagram of the structure of the top cover of a waterproof and sun-proof outdoor junction box according to the present invention.
[0024] Figure 4 This is a schematic diagram of the elastic guiding structure of a waterproof and sun-proof outdoor junction box according to the present invention.
[0025] Figure 5 This is a schematic diagram of the planar structure of a waterproof and sun-proof outdoor junction box according to the present invention.
[0026] Figure 6 This is a schematic diagram of the conduit for a waterproof and sun-proof outdoor junction box according to this utility model.
[0027] Figure 7 This is a cross-sectional view of the internal structure of the conduit for a waterproof and sun-proof outdoor junction box according to this utility model.
[0028] Figure 8 This utility model relates to a waterproof and sun-proof outdoor junction box. Figure 5 Enlarged view of the structure at point A.
[0029] In the diagram, 1. Bottom shell; 11. Positioning hole; 12. Internal thread; 2. Top cover; 21. Locking hole; 3. Sealing structure; 31. Rubber flexible ring; 32. Anti-slip groove; 4. Elastic guide structure; 41. Fixing sleeve; 42. Extension spring; 43. Guide rod; 5. Sunshade plate; 6. Sealing cavity; 7. Conduit; 71. Enclosed structure; 711. Annular ring; 712. Pushing ring; 713. Sealing rubber; 72. External thread; 8. Cable clamp; 81. Connecting conduit; 82. Electric clamp. DETAILED DESCRIPTION
[0030] The present invention will be further described in detail below with reference to the accompanying drawings.
[0031] Example:
[0032] Reference Figure 1 - Figure 8 The present invention discloses a waterproof and sun-proof outdoor junction box, including a bottom shell 1, a top cover 2 fitted on the upper end of the bottom shell 1, a sealing structure 3 provided on the inner wall of the top cover 2 near the bottom side, and an elastic guide structure 4 provided at the four corners of the inside of the bottom shell 1.
[0033] The sealing structure 3 includes several rubber flexible rings 31, which are fixedly connected to the inner wall of the upper cover 2. The inner ring wall of the rubber flexible ring 31 is provided with anti-slip grooves 32.
[0034] The elastic guide structure 4 includes a fixed sleeve 41, an extension spring 42, and a guide rod 43. The fixed sleeve 41 is fixedly connected to the inner bottom wall of the bottom shell 1. The bottom end of the extension spring 42 is fixedly connected to the bottom wall of the fixed sleeve 41. The bottom end of the guide rod 43 is fixedly connected to the top end of the extension spring 42, and the guide rod 43 is inserted into the interior of the fixed sleeve 41 and slidably connected to the fixed sleeve 41.
[0035] The bottom shell 1 is equipped with a cable clamp 8, and wiring pipes 81 are provided on both sides of the cable clamp 8. Electric clamps 82 are provided inside the wiring pipes 81.
[0036] In this embodiment, when installing the bottom shell 1 and the top cover 2, the bottom opening of the top cover 2 is aligned with the top opening of the bottom shell 1, and the bottom shell 1 is inserted into the top cover 2. The top cover 2 is then pressed downwards until the extension spring 42 is fully compressed by the guide rod 43. At this point, the sealing structure 3 is positioned below the bottom shell 1. Then, the top cover 2 is released, and it slides upwards under the action of the extension spring 42. At this time, the rubber flexible ring 31 is subjected to the frictional force of the outer wall of the bottom shell 1, forming an arc shape, such as... Figure 8 As shown, by setting the anti-slip groove 32, when the inner wall of the rubber flexible ring 31 contacts the outer wall of the bottom shell 1, deformation occurs, so that the groove wall of the anti-slip groove 32 contacts the outer wall of the bottom shell 1, thereby increasing the friction between the rubber flexible ring 31 and the bottom shell 1.
[0037] When the rubber flexible ring 31 forms an arc shape, and the extension spring 42 pushes the upper cover 2 upward, the rubber flexible ring 31 and the outer wall of the bottom shell 1 are pressed tightly together to seal the gap between the upper cover 2 and the bottom shell 1. This can effectively reduce the possibility of damage to the rubber flexible ring 31 and improve the service life of the junction box.
[0038] In a further preferred embodiment of this utility model, such as Figure 1-8 As shown, the rubber flexible ring 31 is rectangular, and the inner wall of the rubber flexible ring is in close contact with the outer wall of the bottom shell 1. The spacing between two adjacent rubber flexible rings 31 is equal.
[0039] In this embodiment, since the rubber flexible ring 31 is rectangular, it can form good contact with the outer wall of the rectangular bottom shell 1, so that there is no gap at the contact position between the bottom shell 1 and the rubber flexible ring 31, and the inner wall of the rubber flexible ring is in close contact with the outer wall of the bottom shell 1, thus further improving the sealing performance of the junction box.
[0040] In a further preferred embodiment of this utility model, such as Figure 1-8 As shown, the height between the lowest and highest rubber flexible rings 31 is less than the sliding stroke of the elastic guide structure 4.
[0041] In this embodiment, since the distance between the bottommost rubber ring and the topmost rubber ring is less than the sliding stroke of the elastic guide structure 4, and when the elastic guide structure 4 is in a fully extended state, the bottommost flexible rubber ring 31 is close to the ground of the bottom shell 1. Therefore, when the elastic guide structure 4 is fully retracted, the topmost flexible rubber ring 31 will slide to the bottom wall of the bottom shell 1. At this time, the upper cover 2 is pushed upward by the elastic guide mechanism, so that the flexible rubber ring 31 contacts the outer wall of the bottom shell 1 again. Through the friction between the flexible rubber ring 31 and the bottom shell 1, the flexible rubber ring 31 forms a downward arc, such as... Figure 8 As shown, this achieves the effect of sealing the gap between the top cover 2 and the bottom shell 1.
[0042] In a further preferred embodiment of this utility model, such as Figure 1-8 As shown, the bottom shell 1 has several positioning holes 11 at the positions corresponding to the wiring pipe 81 on its two end walls, and the inner wall of the positioning hole 11 has an internal thread 12. The top cover 2 has a locking hole 21 at the position corresponding to the positioning hole, and the positioning hole 11 and the locking hole 21 are coaxially arranged when the bottom wall of the top cover 2 is flush with the bottom wall of the bottom shell 1.
[0043] In this embodiment, when the bottom wall of the upper cover 2 is flush with the bottom wall of the bottom shell 1 by setting the positioning hole 11 and the locking hole 21, the wire tube 7 is threaded into the locking hole 21 and threadedly connected to the positioning hole 11, thereby achieving the purpose of fixing the upper cover 2 and the bottom shell 1. The wire tube 7 is used to thread the wire into the inside of the junction box for connection.
[0044] In a further preferred embodiment of this utility model, such as Figure 1-8 As shown, a wire guide tube 7 is provided inside the positioning hole 11. The wire guide tube 7 has a closed structure 71 inside, and the outer peripheral wall of the wire guide tube 7 is provided with an external thread 72 that mates with the internal thread 12.
[0045] In this embodiment, the closed structure 71 is used to seal the gap between the wire and the inner wall of the conduit 7 when the wire is inserted into the conduit 7, so as to prevent external air from entering the housing through the conduit 7.
[0046] In a further preferred embodiment of this utility model, such as Figure 1-8 As shown, the closed structure 71 includes an annular ring 711, a pushing ring 712, and a sealing rubber 713. The annular ring 711 is fixedly connected to one end of the conduit 7 near the inside of the bottom shell 1. The pushing ring 712 is threadedly connected to the inside of the conduit 7. The sealing rubber 713 is disposed inside the conduit 7 and is located between the annular ring 711 and the conduit 7.
[0047] In this embodiment, when inserting the wire into the conduit 7, the wire is first passed through the push ring 712, the sealing rubber 713, and the annular ring 711. After the wire is inserted, the push ring 712 is rotated, causing the push ring 712 to push the sealing rubber 713 to deform. Figure 7 As shown, after the sealing rubber 713 deforms, it will come into close contact with the outer wall of the wire to achieve the purpose of sealing the conduit 7. When the wire is inserted into the conduit 7 and extends into the inside of the connector 81, the wire is clamped by the electric clamp 82 to achieve the purpose of automatic clamping.
[0048] In a further preferred embodiment of this utility model, such as Figure 1-8 As shown, a sunshade plate 5 is provided at the top of the upper cover 2, and a sealing cavity 6 is provided on the bottom wall of the sunshade plate 5.
[0049] In this embodiment, the sun protection plate 5 is used to improve the sun protection of the top cover 2.
[0050] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A waterproof and sun-proof outdoor junction box, characterized in that, Includes a bottom shell (1), with a top cover (2) fitted on the upper end of the bottom shell (1), and a sealing structure (3) provided on the inner wall of the top cover (2) near the bottom side, and elastic guide structures (4) provided at the four corners inside the bottom shell (1); The sealing structure (3) includes several rubber flexible rings (31), which are fixedly connected to the inner wall of the cover (2), and the inner ring wall of the rubber flexible ring (31) is provided with anti-slip grooves (32). The elastic guide structure (4) includes a fixed sleeve (41), an extension spring (42) and a guide rod (43). The fixed sleeve (41) is fixedly connected to the inner bottom wall of the bottom shell (1). The bottom end of the extension spring (42) is fixedly connected to the bottom wall of the fixed sleeve (41). The bottom end of the guide rod (43) is fixedly connected to the top end of the extension spring (42), and the guide rod (43) is inserted into the interior of the fixed sleeve (41) and slidably connected to the fixed sleeve (41). The bottom shell (1) is equipped with a cable clamp (8), and wiring pipes (81) are provided on both sides of the cable clamp (8). An electric clamp plate (82) is provided inside the wiring pipe (81).
2. The waterproof and sun-proof outdoor junction box according to claim 1, characterized in that, The rubber flexible ring (31) is rectangular, and the inner wall of the rubber flexible ring (31) is in close contact with the outer wall of the bottom shell (1). The distance between two adjacent rubber flexible rings (31) is equal.
3. A waterproof and sun-proof outdoor junction box according to claim 2, characterized in that, The height between the lowest and highest rubber flexible rings (31) is less than the sliding stroke of the elastic guide structure (4).
4. A waterproof and sun-proof outdoor junction box according to claim 3, characterized in that, The bottom shell (1) has several positioning holes (11) at the positions corresponding to the wiring pipe (81) on its two end walls, and the inner wall of the positioning hole (11) has an internal thread (12). The top cover (2) has a locking hole (21) at the position corresponding to the positioning hole, and the positioning hole (11) and the locking hole (21) are coaxially arranged when the bottom wall of the top cover (2) is flush with the bottom wall of the bottom shell (1).
5. A waterproof and sun-proof outdoor junction box according to claim 4, characterized in that, The positioning hole (11) is provided with a wire tube (7), the wire tube (7) is provided with a closed structure (71), and the outer peripheral wall of the wire tube (7) is provided with an external thread (72) that mates with the internal thread (12).
6. A waterproof and sun-proof outdoor junction box according to claim 5, characterized in that, The closed structure (71) includes an annular ring (711), a pushing ring (712), and a sealing rubber (713). The annular ring (711) is fixedly connected to one end of the conduit (7) near the inside of the bottom shell (1). The pushing ring (712) is threadedly connected to the inside of the conduit (7). The sealing rubber (713) is disposed inside the conduit (7) and located between the annular ring (711) and the conduit (7).
7. A waterproof and sun-proof outdoor junction box according to claim 6, characterized in that, The top of the cover (2) is provided with a sunshade plate (5), and the bottom wall of the sunshade plate (5) is provided with a sealing cavity (6).