Shell and NID box assembly

Abstract

The utility model discloses a casing and NID box subassembly relates to optical fiber communication technical field, the casing includes casing body and cover body, the casing body is equipped with the mounting groove inside, the casing body is equipped with the coiling portion and the first clamping portion in the protruding way, the first clamping portion is located at the groove bottom of the mounting groove, the coiling portion includes a plurality of coiling segments, and the coiling segments are connected with the first clamping portion. Each winding section is arranged at the groove bottom of the mounting groove, and each winding section is arranged around the first clamping part; the cover body is rotationally connected with the shell body, and the cover body can shield a notch of the mounting groove. According to the technical scheme provided by the utility model, the problems that the installation area of the NID box assembly on a building is too large due to the fact that the number of parts in the NID box assembly is large, especially the wiring of optical cables in the NID box assembly is dense, the NID box assembly needs to occupy a large area during installation, and especially the NID box assembly is difficult to flexibly deploy in a dense wiring scene can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of optical fiber communication, especially relates to a shell and NID box subassembly. BACKGROUND

[0002] The network interface device (NID) box is a device for telecommunication and network communication, which is usually installed outside or inside the building as the demarcation point of the carrier line and the user internal line, helps to clarify the responsibility scope of the carrier and the user, facilitates maintenance and troubleshooting, and can prevent lightning, overvoltage and other damages to the user equipment.

[0003] The conventional NID box subassembly includes a PLC optical splitter, a single-core fusion pipe, an adapter, a connector and optical cables, and the internal parts of the NID box subassembly are too many, especially the dense wiring of the optical cables in the NID box subassembly, which causes the installation area of the NID box subassembly on the building to be too large, and further causes a large area to be occupied during installation, especially in the dense wiring scene, which is difficult to deploy flexibly. SUMMARY

[0004] The utility model discloses a shell and NID box subassembly, which aims to solve the problem that the installation area of the NID box subassembly on the building is too large due to the too many internal parts of the NID box subassembly, especially the dense wiring of the optical cables in the NID box subassembly, which further causes a large area to be occupied during installation, especially in the dense wiring scene, which is difficult to deploy flexibly.

[0005] To achieve the above-mentioned purpose, the shell is applied to the NID box subassembly, the shell includes a shell body and a cover, the shell body is provided with an installation slot, the shell body is provided with a winding part and a first clamping part, the first clamping part is located at the bottom of the installation slot, the winding part includes a plurality of winding segments, each winding segment is arranged at the bottom of the installation slot, and each winding segment surrounds the first clamping part; the cover is rotatably connected with the shell body, and the cover can shield the slot opening of the installation slot.

[0006] In an embodiment, each winding segment and the side wall of the shell body further have a winding outer segment, all winding outer segments are connected with the shell body, and each winding outer segment and a winding segment form a winding groove.

[0007] In an embodiment, all winding segments have anti-dropping bosses, each anti-dropping boss is located at one end of the winding segment away from the bottom of the installation slot, and each anti-dropping boss is located on the side of the winding segment facing the winding groove.

[0008] In an embodiment, all of the winding outer sections have an outer anti-off boss, each of the outer anti-off bosses is located at an end of the winding section away from the groove bottom of the mounting groove, and each of the outer anti-off bosses is located on a side of the winding outer section facing the winding groove.

[0009] In an embodiment, each of the winding outer sections has at least two outer anti-off bosses, each of the winding sections has at least one anti-off boss, and each of the anti-off bosses is located between two outer anti-off bosses.

[0010] In an embodiment, the shell further protrudes a second clamping part and a third clamping part, the second clamping part and the third clamping part are both located between the first clamping part and a winding section, the second clamping part is used for fixing a single-core fusion splicing pipe, and the third clamping part is used for fixing a PLC optical splitter.

[0011] In an embodiment, the shell body is provided with a wire inlet and a wire outlet in communication with the outside, and the wire inlet and the wire outlet are both located on the side wall of the mounting groove.

[0012] In an embodiment, the shell body further comprises two optical cable pressing blocks, the shell body is provided with two optical cable fixing grooves, each of the optical cable pressing blocks is detachably arranged in the optical cable fixing groove, and the two optical cable fixing grooves are respectively located at the wire inlet and the wire outlet.

[0013] In an embodiment, the mounting groove is provided with a clamping protrusion, the cover body is provided with a clamping groove at an end close to the shell body, and the clamping protrusion is detachably arranged in the clamping groove.

[0014] The utility model further provides a NID box assembly which comprises a shell, an adapter, a PLC optical splitter and a single-core fusion splicing pipe, the adapter is detachably connected with the first clamping part, the PLC optical splitter is detachably arranged in the mounting groove, and the single-core fusion splicing pipe is detachably arranged in the mounting groove.

[0015] The technical scheme of the utility model discloses a kind of shell, which includes shell body and cover body. Installation groove is opened in shell body, for installing the internal parts of NID box assembly, such as PLC optical splitter, single-core fusion pipe, adapter and optical cable etc. Wire winding part and first clamping part are protruded on shell body, first clamping part is located in the groove bottom of installation groove, for fixing internal parts, ensure its stability in installation groove. Wire winding part includes multiple wire winding sections, each wire winding section is arranged in the groove bottom of installation groove, and is arranged around first clamping part, for reasonably arranging optical cable, avoid wiring confusion and crowding. Cover body is rotatably connected with shell body, can flexibly shield the slot opening of installation groove, play the role of protecting internal parts and preventing external interference. In specific implementation, adapter can be installed at the center position of installation groove, fixed by first clamping part;Single-core fusion pipe and PLC optical splitter are installed around optical splitter, optical cable is orderly wound and fixed using multiple wire winding sections of wire winding part, finally cover body is covered, and assembly is completed. By setting wire winding part and first clamping part, the problem that large area needs to be occupied during installation caused by multiple internal parts of traditional NID box assembly and dense optical cable wiring can be effectively solved. Multiple wire winding sections of wire winding part can neatly wind and fix optical cable, avoid mutual winding and extrusion between optical cables, thereby reducing the overall installation area of NID box assembly. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings from the structures shown in these drawings without creative labor.

[0017] Figure 1 The structural schematic diagram of the shell embodiment provided by the utility model is shown in the figure.

[0018] Figure 2 The structural schematic diagram of the shell embodiment provided by the utility model is shown in the figure. Figure 1 The local enlarged view of A in the figure.

[0019] Figure 3 The structural schematic diagram of the shell another embodiment provided by the utility model is shown in the figure.

[0020] Figure 4 The structural schematic diagram of the NID box assembly embodiment provided by the utility model is shown in the figure.

[0021] Explanation of reference numerals:

[0022] 100, housing; 1, shell body; 1a, mounting groove; 11, winding part; 12, first clamping part; 111, winding section; 2, cover body; 112, winding outer section; 11a, winding groove; 1111, anti-falling boss; 1121, outer anti-falling boss; 13, second clamping part; 14, third clamping part; 1b, wire inlet; 1c, wire outlet; 15, optical cable pressing block; 1d, fixing groove; 16, clamping convex part; 2a, clamping groove; 200, NID box assembly; 3, adapter; 4, PLC optical splitter; 5, single-core fusion pipe.

[0023] The realization, functional features and advantages of the utility model will be further described in combination with embodiments with reference to the drawings. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0025] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0026] In addition, if the embodiments of the utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0027] The utility model provides a kind of housing 100.

[0028] Please refer to Figure 1In an embodiment of the utility model, this shell 100 includes shell body 1 and cover 2, install the groove 1a in the shell body 1, the shell body 1 is provided with winding portion 11 and first clamping portion 12, first clamping portion 12 is located the groove bottom of install the groove 1a, winding portion 11 includes multiple winding section 111, each winding section 111 is located the groove bottom of install the groove 1a, each winding section 111 is arranged around first clamping portion 12;Cover 2 is rotatably connected with shell body 1, and the slot of install the groove 1a can be shielded by cover 2.

[0029] The utility model discloses a kind of shell 100, which includes shell body 1 and cover 2. Install the groove 1a is opened in shell body 1, for installing the internal parts of NID box assembly 200, such as PLC optical splitter 4, single-core fusion pipe 5, adapter 3 and optical cable etc. Shell body 1 is provided with winding portion 11 and first clamping portion 12, and first clamping portion 12 is located the groove bottom of install the groove 1a, for fixing internal parts, ensure its stability in install the groove 1a. Winding portion 11 includes multiple winding section 111, each winding section 111 is located the groove bottom of install the groove 1a, and is arranged around first clamping portion 12, for reasonably arranging optical cable, avoid wiring confusion and crowded. Cover 2 is rotatably connected with shell body 1, and the slot of install the groove 1a can be flexibly shielded, play the role of protecting internal parts and preventing external interference. In specific implementation, adapter 3 can be installed at the center position of install the groove 1a, and fixed by first clamping portion 12;Single-core fusion pipe 5 and PLC optical splitter 4 are installed around optical splitter, and optical cable is orderly wound and fixed using multiple winding section 111 of winding portion 11, and finally cover 2 is covered, to complete assembly. By setting winding portion 11 and first clamping portion 12, the problem that the large area needs to be occupied during installation caused by multiple internal parts of traditional NID box assembly 200 and dense optical cable wiring can be effectively solved. Multiple winding section 111 of winding portion 11 can neatly wind and fix optical cable, avoid mutual winding and extrusion between optical cables, so as to reduce the overall installation area of NID box assembly 200.

[0030] In an embodiment of the utility model, please refer to Figure 1 Each winding section 111 and the side wall of shell body 1 also have winding outer section 112, and all winding outer sections 112 are connected with shell body 1. Each winding outer section 112 and winding section 111 form winding groove 11a.

[0031] In an embodiment, each winding segment 111 also has a winding outer segment 112 between the side wall of the shell body 1, and all winding outer segments 112 are connected with the shell body 1. Each winding outer segment 112 and a winding segment 111 enclose a winding groove 11a. This design further optimizes the wiring path of the optical cable by adding a winding outer segment 112 between the side wall of the shell body 1 and the winding segment 111. Specifically, the shape and size of the winding groove 11a can be adjusted according to the diameter of the optical cable to ensure that the optical cable can be tightly and orderly wound in the winding groove 11a to provide sufficient space to accommodate the optical cable and prevent it from loosening. The arrangement of the winding groove 11a can further optimize the wiring path of the optical cable, reduce the occupied space of the optical cable in the NID box assembly 200, and thus reduce the overall occupied area of the NID box assembly 200. The design of the winding groove 11a significantly reduces the area occupied during field installation. The design of the winding groove 11a makes the wiring of the optical cable more neat and orderly, reduces the friction and wear between the optical cables, and improves the service life of the optical cable. In addition, the winding groove 11a can also prevent the optical cable from knotting or winding during wiring, further improving the reliability and stability of the NID box assembly 200.

[0032] In an embodiment of the present application, please refer to Figure 1 All winding segments 111 have anti-disengagement bosses 1111, each anti-disengagement boss 1111 is located at one end of the winding segment 111 away from the bottom of the mounting groove 1a, and each anti-disengagement boss 1111 is located on the side of the winding segment 111 facing the winding groove 11a.

[0033] In this embodiment, all winding segments 111 are provided with anti-disengagement bosses 1111. Each anti-disengagement boss 1111 is located at one end of the winding segment 111 away from the bottom of the mounting groove 1a, and is located on the side of the winding segment 111 facing the winding groove 11a. This design can limit the position of the optical cable when it is wound in the winding groove 11a by the anti-disengagement boss 1111, preventing the optical cable from disengaging from the winding groove 11a. Specifically, the anti-disengagement boss 1111 can be designed as a raised structure with a certain height and width, and its size is adjusted according to the diameter of the optical cable and the size of the winding groove 11a to ensure effective fixation of the optical cable. The anti-disengagement boss 1111 can effectively prevent the optical cable from disengaging from the winding groove 11a during use, improving the stability and reliability of the optical cable wiring. When the NID box assembly 200 is installed in an outdoor environment and affected by natural factors such as wind and rain, the optical cable can still be tightly wound in the winding groove 11a and will not loosen or fall off. The design of the anti-disengagement boss 1111 makes the wiring of the optical cable more neat, facilitating installation and maintenance, and further improving the overall performance and service life of the NID box assembly 200.

[0034] In an embodiment of the present application, please refer to Figure 1 All the winding outer sections 112 are provided with outer anti-falling bosses 1121, and each outer anti-falling boss 1121 is located at one end of the winding section 111 away from the bottom of the mounting groove 1a, and each outer anti-falling boss 1121 is located on the side of the winding outer section 112 facing the winding groove 11a.

[0035] In an embodiment, all the winding outer sections 112 are provided with outer anti-falling bosses 1121. Each outer anti-falling boss 1121 is located at one end of the winding outer section 112 away from the bottom of the mounting groove 1a, and is located on the side of the winding outer section 112 facing the winding groove 11a. This design can further limit the position of the optical cable when it is wound in the winding groove 11a, preventing the optical cable from falling out of the winding groove 11a. Specifically, the outer anti-falling boss 1121 can be designed as a raised structure with a certain height and width, and its size is adjusted according to the diameter of the optical cable and the size of the winding groove 11a to ensure effective fixation of the optical cable. The outer anti-falling boss 1121 can effectively prevent the optical cable from falling out of the winding groove 11a during use, improving the stability and reliability of the optical cable wiring.

[0036] In an embodiment of the present application, please refer to Figure 1 Each winding outer section 112 has at least two outer anti-falling bosses 1121, and each winding section 111 has at least one anti-falling boss 1111, and each anti-falling boss 1111 is located between two outer anti-falling bosses 1121.

[0037] In this embodiment, each winding outer section 112 is provided with at least two outer anti-drop bosses 1121, each winding section 111 is provided with at least one anti-drop boss 1111, and each anti-drop boss 1111 is located between two outer anti-drop bosses 1121. This design further enhances the fixing effect of the optical cable in the winding groove 11a by providing multiple anti-drop bosses 1111 on the winding outer section 112 and the winding section 111. When winding the optical cable in the winding groove 11a, the optical cable is first limited on both sides of the winding groove 11a by the two outer anti-drop bosses 1121, and then further fixed by the anti-drop boss 1111 on the winding section 111, ensuring the stability and reliability of the optical cable in the winding groove 11a. By providing at least two outer anti-drop bosses 1121 on the winding outer section 112 and at least one anti-drop boss 1111 on the winding section 111, the optical cable can be effectively prevented from loosening or falling off in the winding groove 11a. When the NID box assembly 200 is installed in an outdoor environment, the optical cable can still be firmly wound in the winding groove 11a and will not loosen or fall off. This design can reduce the wear and tear of the optical cable during wiring and prolong the service life of the optical cable. The design of multiple anti-drop bosses 1111 makes the wiring of the optical cable more orderly, facilitating installation and maintenance, and further improving the overall performance and service life of the NID box assembly 200.

[0038] In an embodiment of the present application, referring to Figure 2 , the shell 100 further protrudes a second clamping portion 13 and a third clamping portion 14, the second clamping portion 13 and the third clamping portion 14 are located between the first clamping portion 12 and the winding section 111, the second clamping portion 13 is used to fix the single-core fusion pipe 5, and the third clamping portion is used to fix the PLC optical splitter 4.

[0039] In an embodiment, the shell 100 is further provided with a second clamping portion 13 and a third clamping portion 14. The second clamping portion 13 and the third clamping portion 14 are both located between the first clamping portion 12 and a winding segment 111. The second clamping portion 13 is used to fix the single-core fusion splicing pipe 5, and the third clamping portion 14 is used to fix the PLC optical splitter 4. Specifically, the second clamping portion 13 can be designed as a protruding structure with a clamping groove, the shape of the clamping groove matches the outer shape of the single-core fusion splicing pipe 5, and the single-core fusion splicing pipe 5 is fixed by being inserted into the clamping groove. The third clamping portion 14 can be designed as a structure with multiple clamping claws, the clamping claws can clamp the shell 100 of the PLC optical splitter 4, so as to fix the PLC optical splitter 4 in the shell 100. By setting special clamping portions to fix the single-core fusion splicing pipe 5 and the PLC optical splitter 4, the stability and reliability of these key components in the NID box assembly 200 can be ensured. When the NID box assembly 200 is subjected to external vibration or impact, the single-core fusion splicing pipe 5 and the PLC optical splitter 4 can still be firmly fixed in the shell 100, and will not be loose or fall off. This design can improve the assembly efficiency of the NID box assembly 200 and reduce the dependence on tools during installation.

[0040] In an embodiment of the utility model, please refer to Figure 1 The shell body 1 is provided with a wire inlet 1b and a wire outlet 1c which communicate with the outside, and the wire inlet 1b and the wire outlet 1c are located on the side wall of the mounting groove 1a.

[0041] In this embodiment, the shell body 1 is provided with a wire inlet 1b and a wire outlet 1c which communicate with the outside, and the wire inlet 1b and the wire outlet 1c are located on the side wall of the mounting groove 1a. This design allows the optical cable to enter and exit the NID box assembly 200 from the side wall, facilitating wiring and installation. The shape and size of the wire inlet 1b and the wire outlet 1c can be adjusted according to the actual specifications of the optical cable. For example, the wire inlet 1b and the wire outlet 1c can be designed as circular or oval shapes with a diameter of about 10mm to 20mm to accommodate optical cables of different diameters. In addition, the positions of the wire inlet 1b and the wire outlet 1c can be optimized according to the specific installation environment of the NID box assembly 200 to ensure smooth entry and exit paths for the optical cable and reduce bending and stress during wiring.

[0042] In an embodiment of the utility model, please refer to Figure 3 The shell body 1 further includes two optical cable pressing blocks 15, and the shell body 1 is provided with two optical cable fixing grooves 1d, each optical cable pressing block 15 is detachably arranged in an optical cable fixing groove 1d, and the two optical cable fixing grooves 1d are respectively located at the wire inlet 1b and the wire outlet 1c.

[0043] In an embodiment, the shell body 1 further comprises two optical cable pressing blocks 15, and the shell body 1 is provided with two optical cable fixing grooves 1d, each optical cable pressing block 15 is detachably arranged in an optical cable fixing groove 1d, and the two optical cable fixing grooves 1d are respectively located at the wire inlet 1b and the wire outlet 1c. The optical cable fixing groove 1d can be designed as a long strip-shaped groove, and the length and width thereof are adjusted according to the diameter of the optical cable to ensure that the optical cable can be tightly fixed in the groove. The optical cable pressing block 15 can be made of elastic material and is designed in a shape matched with the optical cable fixing groove 1d, and is fixed in the optical cable fixing groove 1d by buckling or screwing and the like, so as to firmly press the optical cable in the groove. For example, when the diameter of the optical cable is 6mm, the width of the optical cable fixing groove 1d can be designed as 7mm, the depth is 5mm, and the thickness of the optical cable pressing block 15 can be designed as 3mm to provide sufficient pressure to fix the optical cable. By arranging the optical cable pressing block 15 and the optical cable fixing groove 1d, the optical cable at the wire inlet 1b and the wire outlet 1c can be effectively fixed to prevent the optical cable from loosening or falling off during use.

[0044] In an embodiment of the utility model, please refer to Figure 3 , the slot of the mounting groove 1a is provided with a clamping protrusion 16, and the cover 2 is provided with a clamping groove 2a at one end close to the shell body 1, and the clamping protrusion 16 is detachably arranged in the clamping groove 2a.

[0045] In the embodiment, the slot of the mounting groove 1a is provided with a clamping protrusion 16, the cover 2 is provided with a clamping groove 2a at one end close to the shell body 1, and the clamping protrusion 16 is detachably arranged in the clamping groove 2a. This design enables the cover 2 to be firmly fixed on the shell body 1, and facilitates installation and disassembly. The clamping protrusion 16 can be designed as a rectangular or circular protruding structure, and the size thereof is matched with the clamping groove 2a to ensure that the clamping protrusion 16 can be tightly embedded in the clamping groove 2a. In addition, in order to improve the stability of clamping, an elastic gasket can be arranged between the clamping protrusion 16 and the clamping groove 2a to reduce the influence of vibration on the clamping part.

[0046] The utility model also proposes a kind of NID box assembly 200, please refer to Figure 4 , the NID box assembly 200 includes shell 100, adapter 3, PLC optical splitter 4 and single-core fusion pipe 5, the specific structure of shell 100 refers to above embodiment, since the NID box assembly 200 of the present application adopts all technical solutions of above-mentioned all embodiments, at least have all beneficial effects brought by the technical scheme of above-mentioned embodiment, here will not be repeated. Among them, the adapter 3 is detachably connected with the first clamping portion 12;PLC optical splitter 4 is detachably arranged in the mounting groove 1a;Single-core fusion pipe 5 is detachably arranged in the mounting groove 1a.

[0047] In an embodiment, the NID box assembly 200 comprises a housing 100, an adapter 3, a PLC splitter 4 and a single-core fusion splicing tube 5. The adapter 3, the PLC splitter 4 and the single-core fusion splicing tube 5 are all detachably connected in the mounting groove 1a. Specifically, the adapter 3 is connected with the first clamping part 12 through buckles or threads at the bottom of the adapter 3, realizing quick installation and disassembly. The PLC splitter 4 and the single-core fusion splicing tube 5 are fixed in the mounting groove 1a through the second clamping part 13 and the third clamping part 14 respectively, ensuring the stability thereof during use. This design can effectively reduce the area occupied by the NID box assembly 200 during installation. By optimizing the layout and connection mode of the internal components, the overall installation area of the NID box assembly 200 is reduced, so that it can better adapt to limited space during installation and can meet the installation requirements in different scenarios.

[0048] The above merely describes exemplary embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields, or the like, made by using the content of the present application specification and drawings, are included in the patent protection scope of the present application.

Claims

1. A housing for use in an NID box assembly, characterized by, The shell body (1) is provided with a mounting groove (1a) inside, and the shell body (1) is provided with a winding part (11) and a first clamping part (12), the first clamping part (12) is located at the groove bottom of the mounting groove (1a), the winding part (11) comprises a plurality of winding segments (111), each winding segment (111) is arranged at the groove bottom of the mounting groove (1a), and each winding segment (111) is arranged around the first clamping part (12); and The cover body (2) is rotatably connected with the shell body (1), and the cover body (2) can shield the slot opening of the mounting groove (1a). Each winding segment (111) and the side wall of the shell body (1) further have a winding outer segment (112), all the winding outer segments (112) are connected with the shell body (1), and each winding outer segment (112) and a winding segment (111) form a winding groove (11a).

2. The housing of claim 1, wherein All the winding segments (111) have anti-dropping bosses (1111), each anti-dropping boss (1111) is located at one end of the winding segment (111) away from the groove bottom of the mounting groove (1a), and each anti-dropping boss (1111) is located on the side of the winding segment (111) facing the winding groove (11a).

3. The housing of claim 2, wherein, All the winding outer segments (112) have outer anti-dropping bosses (1121), each outer anti-dropping boss (1121) is located at one end of the winding segment (111) away from the groove bottom of the mounting groove (1a), and each outer anti-dropping boss (1121) is located on the side of the winding outer segment (112) facing the winding groove (11a).

4. The housing of claim 3, wherein Each winding outer segment (112) has at least two outer anti-dropping bosses (1121), each winding segment (111) has at least one anti-dropping boss (1111), and each anti-dropping boss (1111) is located between two outer anti-dropping bosses (1121).

5. The housing of claim 4, wherein, The shell is further provided with a second clamping part (13) and a third clamping part (14), the second clamping part (13) and the third clamping part (14) are located between the first clamping part (12) and a winding segment (111), the second clamping part (13) is used for fixing a single-core fusion splicing pipe (5), and the third clamping part is used for fixing a PLC optical splitter (4).

6. The enclosure of any one of claims 1 to 5, wherein, The shell body (1) is provided with a wire inlet (1b) and a wire outlet (1c) which are in communication with the outside, and the wire inlet (1b) and the wire outlet (1c) are located on the side wall of the mounting groove (1a).

7. The enclosure of any one of claims 1 to 5, wherein, The shell body (1) further comprises two optical cable pressing blocks (15), and the shell body (1) is provided with two optical cable fixing grooves (1d), each optical cable pressing block (15) is detachably arranged in one optical cable fixing groove (1d), and the two optical cable fixing grooves (1d) are respectively located at the wire inlet (1b) and the wire outlet (1c).

8. The housing of claim 7, wherein, ​ 9. The enclosure of any one of claims 1 to 5, wherein, The notch of the mounting groove (1a) is provided with a clamping protrusion (16), and the cover body (2) is provided with a clamping groove (2a) near one end of the shell body (1), and the clamping protrusion (16) is detachably arranged in the clamping groove (2a).

10. A NID box assembly, characterized by Comprise: The shell according to any one of claims 1 to 3; An adapter (3) is detachably connected with the first clamping part (12); A PLC optical splitter (4) is detachably arranged in the mounting groove (1a); and A single-core fusion splicing pipe (5) is detachably arranged in the mounting groove (1a).

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