Outdoor waterproof joint box

Abstract

The present invention discloses an outdoor waterproof junction box, including a cable waterproof component, a fixing part, an incoming line base, a wiring base and an outer shell. The incoming line base is provided with at least one waterproof hole for inserting the cable waterproof component, the wiring base is connected to the incoming line base, the outer shell is sleeved outside the incoming line base and the wiring base, and is sealed and connected to the incoming line base; the fixing part is inserted from the side of the incoming line base to fix the cable waterproof component in the corresponding waterproof hole, and the cable waterproof component is pushed to move in the direction of entering the waterproof hole by the force applied to the fixing part until the cable waterproof component is tightly fitted with the waterproof hole. The cable inlet and outlet sealing operation of the present invention is fast, and the overall waterproof performance of the junction box is good; and the internal wiring method can accommodate more excess cable length in a small space; and the small size is convenient for installation and maintenance.

Description

Technical Field

[0001] The invention relates to a cable waterproof connection structure, in particular to an outdoor waterproof junction box. Background Art

[0002] Fiber optic splice box is one of the important equipment in the fiber optic network. It is a device that provides conditions for the splicing and branching of optical cables and protects the optical cable joints. It is mainly used for direct and branch connections of various structural optical cables in overhead, pipeline, direct buried and other laying methods.

[0003] The waterproof sealing and volume of the optical fiber splice box have a direct impact on the performance of the optical fiber and the wiring protection capability. Traditional outdoor waterproof splice boxes generally adopt the form of gland sealing for the inlet and outlet holes, or adopt a larger box with a flip cover / opening cover (generally square). The installation interface size of the splice boxes with these two sealing structures is large, and the waterproof performance of traditional outdoor waterproof splice boxes is also poor. In addition, the installation of square splice boxes is time-consuming, costly, and requires a large installation space. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide an outdoor waterproof joint box which has good waterproof performance, small size and is easy to install.

[0005] To achieve the above-mentioned purpose, the present invention proposes the following technical scheme: an outdoor waterproof junction box, comprising a cable waterproof assembly, a fixing member, an incoming line base, a wiring base and an outer shell, the incoming line base comprising a first end face and a second end face opposite to each other, the first end face is provided with at least one waterproof hole for inserting the cable waterproof assembly, the wiring base is connected to the second end face, the outer shell is sleeved outside the incoming line base and the wiring base, and is sealed and connected to the incoming line base; one end of the cable waterproof assembly has a first waterproof surface, and the waterproof hole has a second waterproof surface matching the first waterproof surface; the fixing member is inserted from the side of the incoming line base to fix the cable waterproof assembly in the corresponding waterproof hole, and the cable waterproof assembly is pushed to move in the direction of the second waterproof surface close to the waterproof hole by the force applied to the fixing member until the first waterproof surface of the cable waterproof assembly fits with the second waterproof surface of the waterproof hole.

[0006] Preferably, the cable waterproofing assembly includes two waterproof clamping assemblies that are interlocked, each of the waterproof clamping assemblies includes a cable waterproof clip and an elastic seal, the elastic seal covers the inner wall of the cable waterproof clip, and one end extends out of the cable waterproof clip, and the outer surface of the part of the elastic seal extending out of the cable waterproof clip forms the first waterproof surface.

[0007] Preferably, at least one cable hole for the cable to pass through is provided in the cable waterproof assembly, and the diameter of the cable hole gradually decreases in a direction approaching the first waterproof surface.

[0008] Preferably, a fixed positioning surface is further provided on the surface of the cable waterproof assembly, and the fixing member inserted into the incoming line base is limited on the fixed positioning surface.

[0009] Preferably, the second waterproof surface of the waterproof hole is a conical waterproof surface that gradually shrinks from the first end surface toward the second end surface.

[0010] Preferably, a cable routing area is formed in the wiring base, and the cables entering the wiring base are wound in the cable routing area according to the excess length, and the incoming end and the outgoing end of the cable are butt-jointed in the cable routing area.

[0011] Preferably, the incoming end and the outgoing end of the cable are welded or connected via an adapter.

[0012] Preferably, both the incoming and outgoing ends of the cable are input and output from an incoming base.

[0013] Preferably, an inlet base is provided at each of the two ends of the wiring base, the inlet end of the cable is input from the inlet base at one end, and the output end is output from the inlet base at the other end.

[0014] Preferably, a fixing hook for fixing the adapter is provided in the wiring base.

[0015] Preferably, a slot matching with a protrusion on the side of the adapter is formed on the fixed hook, and the protrusion of the adapter is locked in the slot.

[0016] Preferably, the top of the wiring base is open.

[0017] Preferably, a sealing ring is provided at the joint between the inlet base and the shell, and the shell is sealed and connected to the inlet base through the sealing ring.

[0018] Preferably, the housing and the incoming line base are closed or opened via an unlockable snap-fit ​​structure.

[0019] Preferably, the outdoor waterproof junction box is in the shape of a cylinder as a whole or approximately so.

[0020] The beneficial effects of the present invention are:

[0021] 1. The sealing structure of the cable inlet and outlet waterproof components, the incoming line base and the fixing parts of the present invention realize the fast sealing operation of the cable inlet and outlet, and is waterproof and reliable. It is suitable for outdoor environments, and the waterproof and dustproof level can reach IP67 level.

[0022] 2. Different from the existing square junction box design, the overall shape of the product of the present invention is cylindrical, the volume is small, and the product is lightweight. It has good site adaptability and can be easily installed at high places, hung on poles, buried underground, hidden in poles, or connected to other equipment, avoiding the high installation cost of square box products. In addition, with a small volume, large-capacity cable connections can be achieved.

[0023] 3. The wiring method of the internal connecting cables of the product of the present invention can accommodate more cable excess length in a small space and can perform flexible maintenance operations, providing a low-cost, high-efficiency waterproof wiring solution for the wiring of micro base stations in 5G networks. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention after assembly;

[0025] Figure 2 It is a schematic diagram of the explosion structure of the present invention;

[0026] Figure 3 It is a three-dimensional structural schematic diagram of the cable waterproof assembly of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the cable waterproof assembly of the present invention when being installed and clamped;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the present invention except for the outer shell.

[0029] Reference numerals:

[0030] 100, incoming line base, 101, first end face, 102, second end face, 103, waterproof hole, 104, second waterproof surface, 105, jack, 106, fixing plate positioning groove, 107, sealing ring, 108, shell fixing hook, 200, cable waterproof component, 201, cable waterproof clip, 202, elastic sealing part, 203, sealing part, 204, compression part, 205, first waterproof surface, 206, cable hole, 207, cable half hole, 208, fixed positioning surface, 300, fixing part, 301, fixed arm, 400, wiring base, 401, cable routing area, 402, fixing hook, 403, slot, 500, shell, 501, positioning port, 600, cable, 601, incoming line end, 602, outlet end, 700, adapter, 701, protrusion. DETAILED DESCRIPTION

[0031] The technical solutions of the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention.

[0032] Combination Figure 1 , Figure 2 , Figure 4and Figure 5 As shown, an outdoor waterproof junction box disclosed in the present invention includes an inlet base 100, a cable waterproof assembly 200, a fixing member 300, a wiring base 400 and a housing 500, wherein the inlet base 100 is used for input and / or output of a cable 600, and includes a first end face 101 and a second end face 102 opposite to each other, and the first end face 101 is provided with at least one waterproof hole 103 for inserting the cable waterproof assembly 200 and penetrating the second end face 102, and when multiple waterproof holes 103 are provided, each waterproof hole 103 corresponds to inserting a cable waterproof assembly 200. Figure 4 As shown, in this embodiment, five waterproof holes 103 are provided on the first end surface 101 , and the longitudinal section of each waterproof hole 103 is in the shape of a rounded rectangle.

[0033] In addition, if Figure 4 As shown, a second waterproof surface 104 is formed in each waterproof hole 103 to cooperate with the cable waterproof assembly 200 for sealing and waterproofing. Preferably, the second waterproof surface 104 is a conical waterproof surface that gradually shrinks from the first end surface 101 to the second end surface 102.

[0034] The cable waterproof assembly 200 is used for the cable 600 to pass through, and cooperates with the incoming cable base 100 to waterproof and seal the incoming and / or outgoing cables 600. Figure 3 As shown, the cable waterproof assembly 200 includes two waterproof clamping assemblies that are interlocked, and the cable 600 is clamped by two waterproof clip assemblies. Each waterproof clamping assembly includes a cable waterproof clip 201 and an elastic seal 202. The cable waterproof clip 201 serves as the outer shell of the cable waterproof assembly 200. The elastic seal 202 specifically includes an integrated sealing portion 203 and a compression portion 204. The sealing portion 203 covers the inner wall of the cable waterproof clip 201. The compression portion 204 extends outward from one end of the sealing portion 203 (in this embodiment, in the direction close to the second end face 102). The outer surface of the compression portion 204 forms a first waterproof surface 205. In this embodiment, the elastic seal 202 is a waterproof rubber member.

[0035] At least one cable hole 206 is axially arranged in the cable waterproof assembly 200 for the cable 600 to pass through. In this embodiment, three cable holes 206 are arranged in each cable waterproof assembly 200, that is, this embodiment can provide input and / or output for 15 cables 600. Each cable hole 206 is formed by buckling two waterproof clamping assemblies, and the diameter of each cable hole 206 gradually decreases in the direction close to the first waterproof surface 205, so that the cable hole 206 is a tapered hole. The design of the tapered hole makes the sealing and fitting effect between the cable 600 and the cable hole 206 better and the waterproof performance is better. Specifically, at least one cable half hole 207 is axially arranged in each cable waterproof clip 201, and each cable hole 206 is formed by buckling two cable half holes 207. In this embodiment, the longitudinal section of the cable hole 207 is circular as a whole, so the longitudinal section of each cable half hole 207 is semicircular, and the cable half hole 207 is also an angled tapered hole.

[0036] In addition, the outer surface of the cable waterproof assembly 200 is also provided with a fixed clamping surface 208 for fixing the limit fixing member 300. In this embodiment, the fixed clamping surface 208 is provided on the outer surface of the cable waterproof clip 201 and is formed by the outer surface of the cable waterproof clip 201 being recessed inward.

[0037] like Figure 4 As shown, the fixing member 300 is used to fix the cable waterproof assembly 200 in the waterproof hole 103 of the incoming line base 100, and also realizes compression waterproofing of the cable waterproof assembly 200. In this embodiment, each waterproof hole 103 of the incoming line base 100 corresponds to a fixing member 300, and the fixing member 300 is a U-shaped fixing plate, which includes two opposite fixing arms 301. The side of the incoming line base 100 is provided with a plug hole 105 for inserting the fixing arms 301 of the fixing member 300. The two fixing arms 301 of the fixing member 300 are inserted into the waterproof hole 103 through the corresponding plug holes 105, and after insertion, each fixing arm 301 is limited to the fixed clamping surface 208 on the corresponding cable waterproof clip 201. In this way, the fixing member 300 clamps the cable waterproof assembly 200 between its two fixing arms 301, and limits and fixes the cable waterproof assembly 200 in the waterproof hole 103. In addition, a fixing piece positioning groove 106 is also provided on the inner wall of each waterproof hole 103 corresponding to the fixing arm 301 of the fixing member.

[0038] In addition, after the fixing member 300 is inserted into the waterproof hole 105 and is limited on the fixed clamping surface 208 on the cable waterproof clip 201, a force is applied to the fixing member 300, so that the fixing member 300 moves along the insertion hole 105, and the cable waterproof assembly 200 is axially pushed to move in the direction (i.e. forward) close to the second waterproof surface 104 of the waterproof hole 105, thereby pushing the first waterproof surface 205 of the elastic seal 202 to seal and fit with the second waterproof surface 104 of the waterproof hole 103, and compressing the elastic seal 202 to form a waterproof function. The above-mentioned fixing plate positioning groove 106 provides a reverse support force for compressing the elastic seal 202 during the compression process of the elastic seal 202.

[0039] The wiring base 400 is connected to the second end surface 102 of the incoming cable base 100 and is used for wiring the cable 600. Figure 2 As shown, in this embodiment, a cable routing area 401 is formed in the wiring base 400, and the cable 600 includes a cable inlet end 601 and a cable outlet end 602, wherein the cable 600 is clamped by the cable waterproof assembly 200, and enters the cable routing area 401 of the wiring base 400 through the waterproof hole 103 on the inlet base 100, and in the cable routing area 401, the cable inlet end 601 and the outlet end 602 are both wound in the cable routing area 401 according to the excess length, and are butt-jointed in the cable routing area 401. During implementation, the cable inlet end 601 and the outlet end 602 can be welded, or can be butt-jointed through an adapter 700. In this embodiment, the cable inlet end 601 and the outlet end 602 are butt-jointed through an adapter 700. Specifically, the incoming end 601 of the cable is wound in the cable routing area 401 according to the excess length and connected to one end of the adapter 700, and the outgoing end 602 of the cable is connected to the other end of the adapter 700 and wound in the cable routing area 401 according to the excess length. The routing method of connecting the cable 600 in the cable routing area 401 can accommodate more excess cable length in a small space.

[0040] In this embodiment, a plurality of fixing hooks 402 for fixing the adapters 700 are arranged in the wiring base 400, at least one adapter 700 is fixed between every two fixing hooks 401, and each fixing hook 401 is provided with a slot 403 matched with the protrusion 701 on the side of the adapter 700, so that the protrusions 701 on both sides of the adapter 700 are respectively clamped in the slots 403 of the two fixing hooks 402, and when implemented, multiple adapters 700 can be stacked and fixed between every two fixing hooks 402. In this embodiment, four fixing hooks 402 are arranged side by side in the wiring base 400, and multiple adapters 700 are stacked and fixed in every two fixing hooks 402. When disassembling, the stacked adapters 700 in each column are disassembled from top to bottom in turn, and each adapter 700 can be disassembled by being detached from the slots 403 of the two fixing hooks 402 from bottom to top, which is convenient for disassembly.

[0041] In addition, the incoming and outgoing wires of the cable 600 can be input and output from the same incoming wire base 100, respectively. In this embodiment, the incoming and outgoing wires of the cable 600 are input and output from the same incoming wire base 100, that is, output from the same end. Alternatively, the incoming and outgoing wires of the cable 600 can also be input and output from opposite ends, such as a wire inlet base 100 is provided at each end of the wiring base 400, and the cable 600 is input from the wire inlet base 100 at one end and output from the wire inlet base 100 at the other end.

[0042] In addition, preferably, the upper end of the wiring base 400 is open-shaped, and the open-shaped design can facilitate the adapter to be taken out from the wiring base 400, so as to more conveniently perform the plugging and unplugging operations of the cable inlet end 601 and the outlet end 602. In this embodiment, the end (i.e., the tail) of the wiring base 400 away from the second end surface 102 of the inlet base 100 is also open-shaped, which is more convenient for plugging and unplugging the cable 600, disassembly and maintenance of the adapter 700, etc.

[0043] Combination Figure 1 and Figure 2 As shown, the housing 500 is sleeved outside the incoming line base 100 and the wiring base 400, specifically, it is sleeved from the tail of the wiring base 400 to the first end face 102 close to the incoming line base 100, and the housing 500 is sealed and connected with the incoming line base 100. Specifically, in this embodiment, a sealing ring 107 is circumferentially arranged on the outer surface of the incoming line base 100, and the sealing ring 107 is located between the housing 500 and the incoming line base 100, so that a closed waterproof space is formed in the housing 500, and the wiring base 400 and the adapter 700 in the wiring base 400, the docked cable 600, etc. are accommodated in the waterproof space to achieve sealing and waterproofing.

[0044] In addition, combined Figure 1 and Figure 2 As shown, the housing 500 and the incoming line base 100 are also connected by an unlockable snap-fit ​​structure, which facilitates the closing or opening operation of the housing 500. Specifically, in this embodiment, the snap-fit ​​structure includes a housing fixing hook 108 provided on the incoming line base 100 and a snap-fit ​​opening 501 provided on the housing 500. When closed, the housing fixing hook on the incoming line base 100 is embedded in the snap-fit ​​opening of the housing and is limited by the snap-fit ​​opening. When opened, the housing fixing hook 108 on the incoming line base 100 is disengaged from the snap-fit ​​opening 501 of the housing.

[0045] In addition, in this embodiment, the inlet base 100 is approximately cylindrical as a whole, so that the shape of the entire junction box is approximately cylindrical. Different from the existing square box wiring box structure, the overall cylindrical structure of the present invention is small in size and lightweight, and has good site adaptability. It can be easily installed at a high place, hung on a pole, buried in the ground, hidden in a pole, or connected to other equipment, avoiding the high installation cost of square box products, and can achieve large-capacity cable connection in a small volume.

[0046] In addition, during the specific implementation, the type of adapter 700 can be replaced to adapt to various fiber optic connectors, and the adapter 700 can also be replaced with a power connection terminal to meet the connection requirements of the power cable; part of the cables can be used as optical / copper signal connections, and part of the cables can be used as power cables, both of which can achieve the function of waterproof connection; it is also possible to use an optical / electrical hybrid cable access form to achieve both signal connection and power connection.

[0047] In addition, in addition to being used in 5G wiring, the product of the present invention can also be widely used in other outdoor connections and wiring node solutions; and in addition to being simply used for waterproof cable connections, the product can also be built-in with other devices to adapt to various applications.

[0048] The technical contents and technical features of the present invention have been disclosed as above. However, those skilled in the art may still make various substitutions and modifications based on the teachings and disclosures of the present invention without departing from the spirit of the present invention. Therefore, the protection scope of the present invention should not be limited to the contents disclosed in the embodiments, but should include various substitutions and modifications that do not depart from the present invention and are covered by the claims of this patent application.

Claims

1. An outdoor waterproof joint box, characterized in that: It includes a cable waterproof component, a fixing part, an incoming line base, a wiring base and an outer shell. The incoming line base includes a first end face and a second end face opposite to each other. The first end face is provided with at least one waterproof hole for inserting the cable waterproof component. The wiring base is connected to the second end face. The outer shell is sleeved outside the incoming line base and the wiring base and is sealed with the incoming line base. One end of the cable waterproof component has a first waterproof surface, and the waterproof hole has a second waterproof surface matching the first waterproof surface. The fixing part is inserted from the side of the incoming line base to fix the cable waterproof component in the corresponding waterproof hole, and the cable waterproof component is pushed to move in the direction close to the second waterproof surface of the waterproof hole by the force applied to the fixing part until the first waterproof surface of the cable waterproof component fits with the second waterproof surface of the waterproof hole. The cable waterproof assembly includes two waterproof clamping assemblies that are interlocked, each of which includes a cable waterproof clip and an elastic seal, the elastic seal covers the inner wall of the cable waterproof clip, and one end of the elastic seal extends out of the cable waterproof clip, and the outer surface of the portion of the elastic seal extending out of the cable waterproof clip forms the first waterproof surface; At least one cable hole is provided in the cable waterproof assembly for the cable to pass through, and the diameter of the cable hole gradually decreases in the direction approaching the first waterproof surface; A fixed clamping surface is also provided on the surface of the cable waterproof assembly, and the fixing member inserted into the incoming line base is limited to the fixed clamping surface; The second waterproof surface of the waterproof hole is a conical waterproof surface that gradually shrinks from the first end surface to the second end surface; Each of the waterproof holes is also provided with a fixing plate positioning groove on its inner wall corresponding to the two ends of the fixing member; After the fixing piece is inserted into the waterproof hole and limited to the fixing clamping surface on the cable waterproof clip, a force is applied to the fixing piece to make the fixing piece move along the insertion hole, and the cable waterproof component is axially pushed to move in the direction close to the second waterproof surface of the waterproof hole, thereby pushing the first waterproof surface of the elastic seal to seal with the second waterproof surface of the waterproof hole, and compressing the elastic seal to form a waterproof function; The fixing plate positioning groove provides a reverse supporting force for the compressed elastic seal during the compression process of the elastic seal.

2. The outdoor waterproof junction box according to claim 1, characterized in that: A cable routing area is formed in the wiring base. The cables entering the wiring base are wound in the cable routing area according to the excess length, and the incoming end and the outgoing end of the cable are butt-jointed in the cable routing area.

3. The outdoor waterproof junction box according to claim 2, characterized in that: The incoming end and the outgoing end of the cable are fused or connected through an adapter.

4. The outdoor waterproof junction box according to claim 2, characterized in that: The incoming and outgoing ends of the cable are both input and output from the incoming base.

5. The outdoor waterproof junction box according to claim 2, characterized in that: An incoming cable base is provided at each of the two ends of the wiring base. The incoming cable end of the cable is input from the incoming cable base at one end, and the output cable end is output from the incoming cable base at the other end.

6. The outdoor waterproof junction box according to claim 3, characterized in that: A fixing hook for fixing the adapter is arranged in the wiring base.

7. The outdoor waterproof joint box according to claim 6, characterized in that: The fixed hook is formed with a slot that matches with the protrusion on the side of the adapter, and the protrusion of the adapter is locked in the slot.

8. The outdoor waterproof joint box according to claim 1, characterized in that: The top of the wiring base is in an open shape.

9. The outdoor waterproof joint box according to claim 1, characterized in that: A sealing ring is provided at the joint between the inlet base and the shell, and the shell is sealed and connected to the inlet base through the sealing ring.

10. The outdoor waterproof joint box according to claim 1, characterized in that: The housing and the incoming line base are closed or opened via an unlockable clamping structure.

11. The outdoor waterproof joint box according to claim 1, characterized in that: The outdoor waterproof joint box is in the shape of a cylinder as a whole or approximately in the shape of a cylinder.

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