Multifunctional outdoor terminal box

CN224669403UActive Publication Date: 2026-08-21SHENZHEN WEICHAT TECH CO LTD
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Patent Information

Application Number
CN202522065821.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-25
Publication Date
2026-08-21
Estimated Expiration
2035-09-25

AI Technical Summary

Technical Problem

[0004]为了克服现有的圆形户外接线盒上盖与下座固定方式要么螺钉固定,要么卡扣固定,前者在户外环境螺钉容易生锈,对线束防水效果差,安装和拆卸麻烦,后者拆卸不便的问题

Benefits of technology

[0017] First, the upper cover and lower base adopt a rotating structure. Second, the outer surface of the lower base's fastening part has a spiral locking groove with a radial locking protrusion and an axial locking groove at its end. Simultaneously, the inner wall of the upper cover has an inner wall protrusion that matches the protrusion placement groove formed by the radial locking protrusion and the axial locking groove. The presence of protrusions in both the axial and radial directions allows for rotational locking while preventing loosening. This design offers good waterproofing, convenient operation, excellent fastening effect, and improved work efficiency.

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Abstract

The utility model relates to the field of outdoor circular terminal box with waterproof and dustproof function, a multifunctional outdoor terminal box, including upper cover and lower seat, the inside wall of upper cover is provided with the inside wall protruding of including inside wall axial protruding and inside wall circumference protruding, the outside surface of lower seat fixed with upper cover lower seat fastening part is provided with spiral locking groove, and the inside end of spiral locking groove is provided with radial locking protruding and axial locking groove, lower seat is the barrel structure, and the lower seat main body all around of lower seat lower extreme is provided with even pair of wire harness hole, upper cover and lower seat are connected through the rotation buckle structure, and the simple effect of locking firm, assembly and disassembly is played. Good waterproof, convenient operation, good fastening effect, can also improve work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of outdoor circular junction boxes with waterproof and dustproof functions, and in particular to a multifunctional outdoor junction box. Background Technology

[0002] Junction boxes are auxiliary materials used in the wiring process to transition and protect wire joints, and are one of the commonly used auxiliary materials by electricians. However, the existing round outdoor junction boxes are fixed to the top cover and the bottom base by either screws or clips. The former is prone to screw rusting in outdoor environments, has poor waterproofing effect on wire harnesses, and is troublesome to install and disassemble, while the latter is inconvenient to disassemble.

[0003] Therefore, it is necessary to provide a multifunctional outdoor junction box to solve the above-mentioned technical problems. Utility Model Content

[0004] To overcome the problems of existing circular outdoor junction boxes where the top cover and bottom are fixed by either screws or clips, which are prone to rusting in outdoor environments, have poor waterproofing for wiring harnesses, and are cumbersome to install and disassemble, and where disassembly is inconvenient, this utility model provides a multifunctional outdoor junction box.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solutions:

[0006] A multifunctional outdoor junction box includes an upper cover and a lower base. The inner wall of the upper cover has an inner wall protrusion including an axial protrusion and a circumferential protrusion. The outer surface of the lower base fastening part, which is fixed to the upper cover, is provided with a spiral locking groove. The inner end of the spiral locking groove is provided with a radial locking protrusion and an axial locking groove. The lower base has a barrel-shaped structure, and an even number of wire harness holes are provided around the lower base body at the lower end. The upper cover and the lower base are connected by a rotating buckle structure, which provides a secure lock and facilitates easy assembly and disassembly.

[0007] As a further embodiment of this utility model: the outer surface of the lower seat fastening part is circumferentially divided with four sets of spiral locking grooves, radial locking protrusions and axial locking grooves, and the inner sidewall of the upper cover is circumferentially divided with four inner sidewall protrusions.

[0008] As a further embodiment of this utility model, it also includes a sealing ring, which is fitted into the sealing groove at the lower end of the lower seat fastening part, and serves to seal and waterproof.

[0009] As a further embodiment of this utility model, a sealing gasket is also included. The sealing gasket is installed on the upper end surface of the lower seat fastening part between the upper cover and the lower seat, and serves to seal and waterproof.

[0010] As a further embodiment of this invention, the sealing gasket is made of silicone.

[0011] As a further embodiment of this utility model, both the upper cover and the lower base are made of plastic.

[0012] As a further embodiment of this utility model, it also includes a wire harness silicone ring, which is installed in the wire harness locking hole arranged circumferentially on the lower body for fastening the wire harness.

[0013] As a further embodiment of this utility model, it also includes a locking nut that is threadedly connected to the same number of locking ports as the wire harness; the locking port of the wire harness includes a locking thread portion and a wire harness locking portion; the wire harness locking portion is integrally formed with the locking thread portion and is disposed on the outside of the locking thread portion, and is provided with a number of elastic radial strips at intervals; used to fasten the wire harness.

[0014] As a further embodiment of this utility model: the wire harness has 6 locking ports.

[0015] As a further embodiment of this utility model: the upper end of the base plate of the lower seat body is provided with two fixing posts on the same diameter for fixing the wire harness fixing seat.

[0016] The beneficial effects of this utility model regarding a multifunctional outdoor junction box are as follows:

[0017] First, the upper cover and lower base adopt a rotating structure. Second, the outer surface of the lower base's fastening part has a spiral locking groove with a radial locking protrusion and an axial locking groove at its end. Simultaneously, the inner wall of the upper cover has an inner wall protrusion that matches the protrusion placement groove formed by the radial locking protrusion and the axial locking groove. The presence of protrusions in both the axial and radial directions allows for rotational locking while preventing loosening. This design offers good waterproofing, convenient operation, excellent fastening effect, and improved work efficiency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural view of the multifunctional outdoor junction box of this utility model;

[0019] Figure 2 This is an exploded view of the multifunctional outdoor junction box of this utility model;

[0020] Figure 3 This is the front view of the lower part of this utility model;

[0021] Figure 4 This is a perspective view of the lower seat structure of this utility model;

[0022] Figure 5 This is a three-dimensional view of the upper cover structure of this utility model;

[0023] Figure 6 This is a utility model Figure 5Enlarged view of section A in the middle;

[0024] Figure 7 This is a schematic diagram illustrating the use of the multifunctional outdoor junction box of this utility model;

[0025] Figure 8 This is a schematic diagram of the assembly of the multifunctional outdoor junction box and wiring harness of this utility model.

[0026] In the diagram: 100 - Multifunctional outdoor junction box; 110 - Top cover; 111 - Top cover body; 112 - Top cover cavity; 113 - Inner wall protrusion; 114 - Inner wall protrusion; 1141 - Inner wall axial protrusion; 1142 - Inner wall circumferential protrusion; 11421 - First guide surface; 11422 - Second guide surface; 120 - Sealing gasket; 130 - Sealing ring; 140 - Lower seat; 141 - Lower seat body; 142 - Wire harness locking port; 1421 - Wire harness locking part; 1422 - Locking thread part; 143 - Lower seat fastening part; 1431 - Sealing... 1432 - Sealing groove, 1433 - Radial locking protrusion, 1434 - Protrusion placement groove, 1435 - Axial locking groove, 144 - Lower seat mounting cavity, 145 - Lower seat fixing part, 146 - Fixing post, 150 - Wire harness silicone ring, 160 - Locking nut, 200 - Wire harness fixing seat, 210 - Fixing seat mounting post, 220 - Fixing seat positioning hole, 230 - Wire harness mounting hole, 310 - First wire harness, 320 - Second wire harness, 330 - Third wire harness, 340 - Fourth wire harness, 350 - Fifth wire harness, 360 - Sixth wire harness. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of a multifunctional outdoor junction box, in conjunction with the accompanying drawings and embodiments, is provided. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the scope of the utility model.

[0028] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "center," "longitudinal," "lateral," "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, a multifunctional outdoor junction box 100 includes an upper cover 110, a sealing gasket 120, a sealing ring 130, a lower seat 140, a wire harness silicone ring 150, and a locking nut 160. The inner sidewall of the upper cover 110 is provided with an inner sidewall protrusion 114, including an inner sidewall axial protrusion 1141 and an inner sidewall circumferential protrusion 1142. The outer surface of the lower seat fastening part 143, which is fixed to the upper cover 110, is provided with a spiral locking groove 1432. The inner end of the spiral locking groove 1432 is provided with a radial locking protrusion 1433 and an axial locking groove 1435. The lower seat 140 has a barrel-shaped structure. The lower seat body 141 at the lower end of the lower seat 140 is provided with an even number of wire harness holes (i.e., wire harness locking ports 142) around its perimeter. The upper cover 110 and the lower seat 140 are connected by a rotating buckle structure, which provides a secure lock and facilitates easy assembly and disassembly.

[0031] Specifically, the upper cover 110 includes an upper cover body 111 and an upper cover cavity 112 formed by the upper cover body 111. A plurality of inner wall protrusions 113 are circumferentially arranged in the direction away from the cover opening and the inner wall protrusions 114. The number of inner wall protrusions 113 and inner wall protrusions 114 is equal and they are arranged on the same axis. The inner wall protrusions 113 facilitate a more secure locking of the lower seat 140 of the upper cover 110. The inner wall circumferential protrusions 1142 are circumferentially provided with a first guide surface 11421 and a second guide surface 11422 that are mutually opposed. The second guide surface 11421 and the second guide surface 11422 facilitate the passage of the inner wall protrusion 114 through the radial locking protrusion 1433; the inner wall axial protrusion 1141 and the inner wall circumferential protrusion 1142 are integrally formed; the spiral locking groove 1432, the radial locking protrusion 1433 and the axial locking groove 1435 form a protrusion placement groove 1434; preferably, the axial locking groove 1435 is located away from the lower seat body 141, and when the upper cover 110 and the lower seat 140 are in the screw-in state, the inner wall protrusion 114 is confined within the protrusion placement groove 1434. Two opposing lower seat fixing parts 145 with through holes are provided at the lower end of the outer surface of the lower seat body 141 for fixing the multifunctional outdoor junction box 100.

[0032] Because the upper cover 110 and lower seat 140 adopt a rotating structure, and the end of the spiral locking groove 1432 is provided with a radial locking protrusion 1433 and an axial locking groove 1435, and the inner sidewall of the upper cover 110 is provided with an inner sidewall protrusion 114 that matches the protrusion placement groove 1434 formed by the radial locking protrusion 1433 and the axial locking groove 1435, when the upper cover 110 and lower seat 140 are in the tightened state, the inner sidewall protrusion 114 is positioned in the protrusion placement groove 1434. The presence of protrusions in both the axial and radial directions allows for rotational positioning and locking, while also preventing loosening. This design offers good waterproofing, convenient operation, good fastening effect, and improved work efficiency.

[0033] like Figure 4 , Figure 5 As shown, the outer surface of the lower seat fastening part 143 is circumferentially divided with four sets of spiral locking grooves 1432, radial locking protrusions 1433, protrusion placement grooves 1434, and axial locking grooves 1435. The inner sidewall of the upper cover 110 is circumferentially divided with four inner sidewall protrusions 114. This allows for quick assembly, safety, stability, and convenient disassembly.

[0034] like Figure 1 , Figure 2 As shown, the sealing ring 130 is fitted into the sealing groove 1431 at the lower end of the lower seat fastening part 143, serving to seal and provide secondary waterproofing.

[0035] like Figure 1 , Figure 2 As shown, the sealing gasket 120 is made of silicone. The sealing gasket 120 is installed on the upper end surface of the lower seat fastening part 143 between the upper cover 110 and the lower seat 140, and serves to seal and waterproof.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, both the upper cover 110 and the lower base 140 are made of plastic. This material offers high UV resistance, is more resistant to aging than traditionally made boxes, does not crack under sunlight, and has a longer lifespan.

[0037] like Figure 1 , Figure 2 As shown, the wire harness silicone ring 150 is installed in the wire harness locking port 142 circumferentially provided on the lower body 141 for fastening the wire harness.

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the number of locking nuts 160 and wire harness locking ports 142 are equal and they are threaded together. The wire harness locking port 142 includes a locking thread portion 1422 and a wire harness locking portion 1421. The wire harness locking portion 1421 is integrally formed with the locking thread portion 1422 and is located on the outside of the locking thread portion 1422. It is a radially elastic strip shape with several intervals for fastening the wire harness. The upper cover 110 and the lower seat 140 are configured as an up-and-down rotating snap-fit ​​structure, and a sealing gasket 120, a sealing rubber ring 130, a wire harness silicone ring 150, and a locking nut 160 are also provided between them. The entire multi-functional outdoor junction box 100 is a sealed structure with waterproof and dustproof functions, which can effectively block the influence of the external environment on the internal products when locked.

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the entire multi-functional outdoor junction box 100 is integrally molded and can be configured with multiple circumferentially arranged wire harness locking ports 142 according to customer usage scenarios. Preferably, there are 6 wire harness locking ports 142. The entire multi-functional outdoor junction box 100 adopts an integral molded structure, which eliminates the need for additional interface configuration compared to traditional waterproof boxes, thus saving costs. Moreover, it eliminates the need for subsequent assembly, and the integral molding provides superior waterproof performance. One set of molds can be used to replace different interfaces, which can greatly save costs.

[0040] like Figure 7 , Figure 8 As shown, the upper end of the base plate of the lower body 141 is provided with two fixing posts 146 on the same diameter for fixing the wire harness fixing seat 200.

[0041] Specifically, the wire harness fixing base 200 includes a plurality of parallel hollow fixing base mounting posts 210, each fixing base mounting post 210 having a wire harness mounting hole 230 formed at its axial center. The plurality of fixing base mounting posts 210 are integrally formed, and two fixing base positioning holes 220 are provided in the middle connecting part. The hole spacing of the two fixing base positioning holes 220 is consistent with the spacing between the two fixing posts 146, which is used to position the wire harness fixing base 200 in the lower mounting cavity 144 formed by the lower body 141 and the lower fastening part 143. Preferably, the wire harness fixing base 200 has 4 fixing base mounting posts 210 and 6 wire harnesses, including a first wire harness 310, a second wire harness 320, a third wire harness 330, a fourth wire harness 340, a fifth wire harness 350 and a sixth wire harness 360. The second wire harness 320 passes through one of the wire harness locking holes 142 and through the adjacent outermost mounting post 210, and finally exits from another wire harness locking hole 142 adjacent to the wire harness locking hole 142 through which it passes. The first wire harness 310, the third wire harness 330, the fourth wire harness 340 and the fifth wire harness 350 enter from another wire harness locking hole 142 adjacent to the wire harness locking hole 142 through which the second wire harness 320 passes, and then pass through the four mounting posts 210 respectively, and finally exit together from a wire harness locking hole 142 opposite to the wire harness locking hole 142 through which they pass. The sixth wire harness 360 enters and exits from the remaining two wire harness locking holes 142, and passes through the outermost mounting post 210 away from the wire harness locking hole 142 through which the second wire harness 320 passes.

[0042] The above description of the utility model is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A multifunctional outdoor junction box (100), comprising an upper cover (110) and a lower base (140), characterized in that: The inner wall of the upper cover (110) is provided with an inner wall protrusion (114) including an inner wall axial protrusion (1141) and an inner wall circumferential protrusion (1142); the outer surface of the lower seat fastening part (143) that fixes the lower seat (140) to the upper cover (110) is provided with a spiral locking groove (1432), and the inner end of the spiral locking groove (1432) is provided with a radial locking protrusion (1433) and an axial locking groove (1435); the lower seat (140) is a barrel-shaped structure, and an even number of wire harness holes are provided around the lower seat body (141) at the lower end of the lower seat (140); the upper cover (110) and the lower seat (140) are connected by a rotating buckle structure, which plays the role of locking firmly and assembling and disassembling easily.

2. The multifunctional outdoor junction box (100) according to claim 1, characterized in that: The outer surface of the lower seat fastening part (143) is circumferentially divided with four sets of spiral locking grooves (1432), radial locking protrusions (1433) and axial locking grooves (1435), and the inner sidewall of the upper cover (110) is circumferentially divided with four inner sidewall protrusions (114).

3. The multifunctional outdoor junction box (100) according to claim 1 or 2, characterized in that: It also includes a sealing ring (130), which is fitted into the sealing groove (1431) at the lower end of the lower seat fastening part (143). Inside, it serves to seal and waterproof.

4. The multifunctional outdoor junction box (100) according to claim 3, characterized in that: It also includes a sealing gasket (120), which is installed on the upper end face of the lower seat fastening part (143) between the upper cover (110) and the lower seat (140) and serves to seal and waterproof.

5. The multifunctional outdoor junction box (100) according to claim 4, characterized in that: The sealing gasket (120) is made of silicone.

6. The multifunctional outdoor junction box (100) according to claim 4 or 5, characterized in that: Both the upper cover (110) and the lower seat (140) are made of plastic.

7. The multifunctional outdoor junction box (100) according to claim 6, characterized in that: It also includes a wire harness silicone ring (150), which is installed in the wire harness locking port (142) circumferentially provided on the lower body (141) for fastening the wire harness.

8. The multifunctional outdoor junction box (100) according to claim 7, characterized in that: It also includes locking nuts (160) that are threadedly connected to the same number of the wire harness locking ports (142); the wire harness locking ports (142) include locking thread portions (1422) and wire harness locking portions (1421); the wire harness locking portions (1421) are integrally formed with the locking thread portions (1422), and are disposed on the outside of the locking thread portions (1422), and are provided with a number of elastic radial strips at intervals; used to fasten the wire harness.

9. The multifunctional outdoor junction box (100) according to claim 8, characterized in that: There are 6 locking ports (142) for the wire harness.

10. The multifunctional outdoor junction box (100) according to any one of claims 7 to 9, characterized in that: The lower base body (141) has two fixing posts (146) on the same diameter at the upper end of its base plate for fixing the wire harness fixing seat (200).