Optical cable distribution box for communication

Abstract

The invention belongs to the technical field of fiber distribution box equipment, and discloses an optical cable fiber distribution box for communication, which is technically characterized by comprising a box body, a box cover is rotatably mounted on the surface of the box body, a winding ring is fixedly mounted in an inner cavity of the box body, and a layered winding mechanism is arranged on the surface of the winding ring. The layered winding mechanism comprises a supporting rod, a storage assembly and an adjusting assembly, a water leakage early warning assembly is arranged between the box body and the box cover, and the water leakage early warning assembly is used for monitoring the sealing condition between the box body and the box cover. Through mutual cooperation of the storage assembly and the adjusting assembly, the positions of the winding ring and the multiple sets of supporting rods can be conveniently adjusted in the inner cavity of the box body, when an optical cable is wound on the surface of the winding ring in an ultra-long mode, the multiple sets of supporting rods can separate the optical cable in a layered mode, and the heat dissipation effect of the optical cable is effectively improved; and the service life of the optical cable is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of fiber splitter box equipment, in particular to an optical cable fiber splitter box for communication. Background Art

[0002] The optical fiber splitter box is an interface device used to connect the trunk optical cable and the distribution optical cable outdoors, in corridors or indoors. The optical fiber splitter box must be able to work reliably under the specified environment, and its box body must be able to withstand a vertical pressure of no more than 500N. The splitter box must be marked with the standard number, product model, name, trademark, production unit, and year and month of manufacture. The connector of the splitter box must have the trademark or manufacturer's mark, and the optical fiber fusion disc in the splitter box must have the trademark or manufacturer's mark.

[0003] When the fiber splitter box is in use, the optical cable needs to be inserted from the outside into the fiber splitter box and connected to the optical splitter. During the operation of the optical cable, the current passing through the optical fiber and connectors will generate heat, which will cause the optical cable to heat up. This is a natural phenomenon of the normal operation of the optical cable.

[0004] The existing fiber distribution box cannot position the extra-long optical cable. When the length of the optical cable is long, the optical cable needs to be rolled and tied and placed in the fiber distribution box. This existing placement method causes the batches of optical cables to fit together, which will affect the heat dissipation capacity of the optical cable and cause the internal temperature of the optical cable to rise, thereby affecting the performance and life of the optical cable. In addition, the optical cable is easy to get tangled during use, resulting in poor use effect. Summary of the invention

[0005] The object of the present invention is to provide a communication optical cable fiber distribution box to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A communication optical cable fiber distribution box, comprising a box body, a box cover being rotatably mounted on the surface of the box body, an optical splitter being fixedly mounted on the inner cavity of the box body, a winding ring located on one side of the optical splitter being fixedly mounted on the inner cavity of the box body, a layered winding mechanism being arranged on the surface of the winding ring, the layered winding mechanism comprising a support rod, a storage assembly and an adjustment assembly, the support rods being arranged in multiple groups, the storage assembly being located on the side wall of the winding ring and being connected to the support rods, the storage assembly being used for controlling multiple groups of support rods to be distributed in a circular shape with equal spacing at different heights on the surface of the winding ring, the adjustment assembly being located on the inner side wall of the winding ring and being connected to the storage assembly, the adjustment assembly adjusting the relative position of the support rod and the winding ring by cooperating with the storage assembly, a water leakage warning assembly being arranged between the box body and the box cover, the water leakage warning assembly being used for monitoring the sealing condition between the box body and the box cover.

[0008] As a further solution of the present invention: the storage assembly includes a plurality of storage cavities arranged in a circular shape and at equal intervals and opened at different heights on the side wall of the winding ring, the storage cavity is an L-shaped structure, the width direction of the storage cavity passes through the inner and outer sides of the winding ring, a load-bearing gear disk is rotatably installed in the storage cavity, and one end of the support rod is fixedly connected to the side wall of the load-bearing gear disk.

[0009] As a further solution of the present invention: the adjustment component includes a plurality of control rings rotatably installed on the inner side wall of the winding ring, the plurality of control rings are evenly spaced along the vertical direction, the side wall of the control ring is provided with an annular gear ring, the gear ring is meshingly connected with the load-bearing gear disk at the same height, the inner side wall of the winding ring is provided with a limiting portion that cooperates with the control ring, and the limiting portion is used to adjust the position of the control ring on the inner side wall of the winding ring.

[0010] As a further solution of the present invention: the limiting portion includes a telescopic hole opened on the inner wall of the winding ring and located outside the control ring, and two groups of positioning holes distributed in parallel are opened on the surface of the control ring. A positioning rod is slidably installed in the telescopic hole, one end of the positioning rod extends to the outside of the positioning hole and is engaged with the positioning hole, and a pulling spring is fixedly installed in the telescopic hole, and the telescopic end of the pulling spring is connected to the positioning rod.

[0011] As a further solution of the present invention: an annular guide groove is provided on the inner side wall of the winding ring, a guide ring is rotatably installed in the guide groove, and the guide ring extends to the outside of the guide groove and is fixedly connected to the control ring.

[0012] As a further solution of the present invention: the water leakage warning component includes a lower sealing ring fixedly installed on the top of the inner wall of the box body, an upper sealing ring that cooperates with the lower sealing ring is fixedly installed on the bottom of the inner wall of the box cover, the vertical cross-sections of the lower sealing ring and the upper sealing ring are both L-shaped structures, an outer sealing ring is fixedly installed on the outer side wall of the upper sealing ring, an inner sealing ring is fixedly installed on the inner side wall of the upper sealing ring, and a humidity sensor is fixedly installed on the surface of the lower sealing ring.

[0013] As a further solution of the present invention: annular sealing gaskets are respectively provided on two side walls of the box body and the box cover that are opposite to each other.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging the storage component and the adjustment component to cooperate with each other, the positions of the winding ring and the multiple groups of support rods can be conveniently adjusted in the inner cavity of the box; when the optical cable is too long and is wound on the surface of the winding ring, the multiple groups of support rods can layer and block the optical cable, effectively improving the heat dissipation effect of the optical cable, thereby effectively improving the performance and life of the optical cable, and solving the problem that the current batch of optical cables are closely wound together, the heat dissipation capacity is affected, and the internal temperature of the optical cable increases, thereby affecting the performance and life of the optical cable.

[0015] By arranging a water leakage warning component to cooperate with the box body, the gap between the box body and the box cover can be doubly sealed and protected, and when water leakage occurs in the gap between the box body and the box cover, an alarm signal can be issued in time, effectively improving the use effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of a communication optical cable fiber distribution box provided in an embodiment of the present invention.

[0017] Figure 2 The present invention is a schematic diagram of the main structure of a communication optical cable distribution box provided in an embodiment of the present invention.

[0018] Figure 3 The present invention is a schematic diagram of a layered winding mechanism and its connection structure in a fiber distribution box for a communication optical cable provided in an embodiment of the present invention.

[0019] Figure 4 A schematic diagram of a winding ring and its connection structure in a communication optical cable distribution box provided in an embodiment of the present invention Figure 1 .

[0020] Figure 5 A schematic diagram of a winding ring and its connection structure in a communication optical cable distribution box provided in an embodiment of the present invention Figure 2 .

[0021] Figure 6 for Figure 2 Schematic diagram of the enlarged structure of A.

[0022] Figure 7 for Figure 2 Schematic diagram of the enlarged structure of B.

[0023] Figure 8 for Figure 5 Schematic diagram of the enlarged structure of C in the figure.

[0024] Among them: 1-box body, 11-box cover, 2-sealing gasket, 3-optical splitter, 4-winding ring, 5-water leakage warning component, 51-lower sealing ring, 52-upper sealing ring, 53-outer sealing ring, 54-inner sealing ring, 55-humidity sensor, 6-layered winding mechanism, 61-support rod, 62-storage component, 621-storage cavity, 622-bearing gear disc, 63-adjustment component, 631-control ring, 632-gear ring, 7-limiting part, 71-telescopic hole, 72-positioning rod, 73-positioning hole, 74-pull spring, 8-guide groove, 9-guide ring. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0026] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0027] like Figure 1 , Figure 2 , Figure 3 As shown, it is a structural diagram of a communication optical cable fiber distribution box provided by an embodiment of the present invention, comprising a box body 1, a box cover 11 is rotatably installed on the surface of the box body 1, an optical splitter 3 is fixedly installed in the inner cavity of the box body 1, a winding ring 4 located on one side of the optical splitter 3 is fixedly installed in the inner cavity of the box body 1, a layered winding mechanism 6 is arranged on the surface of the winding ring 4, and the layered winding mechanism 6 includes a support rod 61, a storage assembly 62 and an adjustment assembly 63, the support rod 61 is provided with multiple groups, and the storage assembly 62 is located on the side wall of the winding ring 4 It is also connected to the support rod 61. The storage component 62 is used to control multiple groups of support rods 61 to be distributed in a circular shape with equal spacing at different heights on the surface of the winding ring 4. The adjustment component 63 is located on the inner wall of the winding ring 4 and is connected to the storage component 62. The adjustment component 63 adjusts the relative position of the support rod 61 and the winding ring 4 by cooperating with the storage component 62. A water leakage warning component 5 is provided between the box body 1 and the box cover 11. The water leakage warning component 5 is used to monitor the sealing condition between the box body 1 and the box cover 11.

[0028] Initially, the storage assembly 62 and the adjustment assembly 63 cooperate with each other to position the multiple groups of support rods 61, and the multiple groups of support rods 61 are inside the winding ring 4. When the optical cable needs to be connected, the box cover 11 is opened, the optical cable is moved to the inner cavity of the box body 1 through the inlet pipe and connected to the optical splitter 3. When the length of the optical cable is long, the extra-long optical cable needs to be collected and sorted. The storage assembly 62 and the adjustment assembly 63 cooperate with each other to control the support rods 61 at different heights on the surface of the winding ring 4 to rotate to the outside of the winding ring 4. The multiple groups of support rods 61 adjacent in the vertical direction form a winding area, and the extra-long optical cable is wound on the surface of the winding ring 4. The optical cable is located in the winding area between the upper and lower rows of support rods 61. During the winding process of the optical cable, the multiple groups of support rods 61 distributed in the vertical direction on the surface of the winding ring 4 can effectively layer and block the optical cable, effectively improve the heat dissipation effect of the optical cable during use, and thus improve the performance and service life of the optical cable.

[0029] After the box cover 11 is fitted and locked with the box body 1, the water leakage warning component 5 can seal the gap between the box cover 11 and the box body 1, and can monitor the sealing condition between the box cover 11 and the box body 1 in real time. When the box body 1 is set in an outdoor environment, when a gap appears between the box body 1 and the box cover 11, rainwater can easily pass through the gap between the box body 1 and the box cover 11 and flow toward the inner cavity of the box body 1. The water leakage warning component 5 can send out an alarm signal in time, so that the staff can repair the box body 1 in time, and can further seal the box body 1 and the box cover 11 to effectively prevent rainwater from flowing into the inner cavity of the box body 1.

[0030] like Figure 3 , Figure 4 , Figure 7 , Figure 8 As shown, as a preferred embodiment of the present invention, the storage assembly 62 includes a plurality of storage cavities 621 which are arranged at different heights on the side wall of the winding ring 4 and are distributed in a circular shape with equal spacing. The storage cavity 621 is an L-shaped structure. The width direction of the storage cavity 621 passes through the inner and outer sides of the winding ring 4. A load-bearing gear disk 622 is rotatably installed in the storage cavity 621, and one end of the support rod 61 is fixedly connected to the side wall of the load-bearing gear disk 622.

[0031] The bearing toothed disc 622 positions the support rod 61. Initially, the adjustment component 63 positions the bearing toothed disc 622 in the storage cavity 621. At this time, the support rod 61 on the surface of the bearing toothed disc 622 is entirely in the storage cavity 621. When it is necessary to wind the optical cable on the surface of the winding ring 4, the adjustment component 63 controls the multiple groups of bearing toothed discs 622 at the same height on the surface of the winding ring 4 to rotate in the storage cavity 621 respectively. The bearing toothed discs 622 drive the support rod 61 to rotate synchronously, thereby rotating the support rod 61 to the outside of the winding ring 4. After the support rod 61 rotates to a suitable position outside the winding ring 4, the adjustment component 63 fixes the position of the bearing toothed disc 622 in the storage cavity 621, and then fixes the position of the multiple groups of support rods 61 outside the winding ring 4. After the position of the support rod 61 is fixed, the optical cable can be conveniently wound in layers on the surface of the winding ring 4.

[0032] like Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8As shown, as a preferred embodiment of the present invention, the adjustment component 63 includes a plurality of control rings 631 rotatably mounted on the inner wall of the winding ring 4, the plurality of control rings 631 are evenly spaced in the vertical direction, the side walls of the control rings 631 are provided with an annular gear ring 632, the gear ring 632 is meshedly connected with the load-bearing gear disk 622 at the same height, the inner wall of the winding ring 4 is provided with a limiting portion 7 which cooperates with the control ring 631, and the limiting portion 7 is used to adjust the position of the control ring 631 on the inner wall of the winding ring 4.

[0033] Initially, the limiting part 7 fixes the position of the control ring 631 on the inner wall of the winding ring 4, and the gear ring 632 and the bearing gear disc 622 are meshed with each other, thereby fixing the position of the bearing gear disc 622 in the storage cavity 621, and the support rod 61 is entirely in the storage cavity 621. When it is necessary to wind the extra-long optical cable on the surface of the winding ring 4, the limiting part 7 releases the restriction on the control ring 631, and pushes the control ring 631 to rotate at the inner wall of the winding ring 4, and the control ring 631 drives the gear ring 632 to rotate synchronously, and the gear ring 632 and the bearing gear disc 622 are meshed and driven, which can drive the bearing gear disc 622 to rotate in the storage cavity 621, and the bearing gear disc 622 drives the support rod 61 to rotate to the outside of the winding ring 4. After the support rod 61 rotates to a suitable position, the limiting portion 7 fixes the position of the control ring 631 again on the inner wall of the winding ring 4. At this time, the gear ring 632 and the bearing toothed disc 622 engage with each other, thereby fixing the position of the bearing toothed disc 622 and the support rod 61.

[0034] like Figure 3 , Figure 7 , Figure 8 As shown, as a preferred embodiment of the present invention, the limiting portion 7 includes a telescopic hole 71 opened on the inner wall of the winding ring 4 and located on the outside of the control ring 631, and two groups of positioning holes 73 distributed in parallel are opened on the surface of the control ring 631. A positioning rod 72 is slidably installed in the telescopic hole 71, and one end of the positioning rod 72 extends to the outside of the positioning hole 73 and is snap-fitted with the positioning hole 73. A pulling spring 74 is fixedly installed in the telescopic hole 71, and the telescopic end of the pulling spring 74 is connected to the positioning rod 72.

[0035] Initially, the pulling spring 74 applies a pulling force to the positioning rod 72 toward the telescopic hole 71. At this time, the positioning rod 72 is stably inserted into the positioning hole 73 on the surface of the control ring 631. The positioning rod 72 and the positioning hole 73 cooperate with each other, and the position of the control ring 631 can be fixed on the inner wall of the winding ring 4. When the position of the support rod 61 needs to be adjusted, the positioning rod 72 is pulled outward so that the positioning rod 72 and the positioning hole 73 cooperate with each other. At this time, the control ring 631 can be easily pushed to rotate at the inner wall of the winding ring 4. After the control ring 631 rotates to a suitable position, the positioning rod 72 is released, and the positioning rod 72 is inserted into another group of positioning holes 73 on the surface of the control ring 631. At this time, the positions of the control ring 631 and the support rod 61 can be easily fixed.

[0036] like Figure 7 As shown, as a preferred embodiment of the present invention, the inner wall of the winding ring 4 is provided with an annular guide groove 8, and a guide ring 9 is rotatably installed in the guide groove 8. The guide ring 9 extends to the outside of the guide groove 8 and is fixedly connected to the control ring 631.

[0037] When the control ring 631 rotates along the inner wall of the winding ring 4, the guide ring 9 rotates synchronously in the guide groove 8. The guide ring 9 and the guide groove 8 cooperate with each other, which can effectively improve the stability of the control ring 631 during rotation.

[0038] like Figure 1 , Figure 2 , Figure 6 As shown, as a preferred embodiment of the present invention, the water leakage warning component 5 includes a lower sealing ring 51 fixedly installed on the top of the inner wall of the box body 1, and an upper sealing ring 52 that cooperates with the lower sealing ring 51 is fixedly installed on the bottom end of the inner wall of the box cover 11. The vertical cross-sections of the lower sealing ring 51 and the upper sealing ring 52 are both L-shaped structures. An outer sealing ring 53 is fixedly installed on the outer side wall of the upper sealing ring 52, and an inner sealing ring 54 is fixedly installed on the inner side wall of the upper sealing ring 52. A humidity sensor 55 is fixedly installed on the surface of the lower sealing ring 51.

[0039] When the box cover 11 is fitted and locked with the box body 1, the upper sealing ring 52 at the bottom of the box cover 11 is inserted to the outside of the lower sealing ring 51, and the outer sealing ring 53 on the surface of the upper sealing ring 52 is fitted with the inner wall of the box body 1, and the inner sealing ring 54 on the surface of the upper sealing ring 52 is fitted with the surface of the lower sealing ring 51. At this time, the outer sealing ring 53 and the inner sealing ring 54 are in a closed state. The outer sealing ring 53 can perform a preliminary sealing treatment between the box body 1 and the box cover 11. When the outer sealing ring 53 is damaged, rainwater flows through the outer sealing ring 53 along the gap between the box body 1 and the box cover 11 to the surface of the lower sealing ring 51, and the humidity sensor 55 can generate a warning signal in real time to remind the staff to repair it, and the inner sealing ring 54 can further perform a sealing treatment between the box body 1 and the box cover 11, effectively preventing rainwater from flowing directly into the inner cavity of the box body 1.

[0040] like Figure 6 As shown, as a preferred embodiment of the present invention, two side walls of the box body 1 and the box cover 11 opposite to each other are respectively provided with annular sealing gaskets 2.

[0041] When the box cover 11 is fitted and locked with the box body 1 , the two sets of sealing gaskets 2 fit each other, thereby effectively improving the sealing performance between the box body 11 and the box body 1 .

[0042] The working principle of the present invention is as follows: initially, the positioning rod 72 is stably inserted into the positioning hole 73 on the surface of the control ring 631, and the positioning rod 72 and the positioning hole 73 cooperate with each other, and the position of the control ring 631 can be fixed on the inner wall of the winding ring 4. At this time, the gear ring 632 and the bearing toothed disc 622 are meshed with each other, and then the position of the bearing toothed disc 622 is fixed in the storage cavity 621. At this time, the support rod 61 is entirely in the storage cavity 621. When it is necessary to connect the optical cable, open the box cover 11, move the optical cable through the inlet pipe to the inner cavity of the box body 1 and connect it to the optical splitter 3. When the optical cable is long, the extra-long optical cable needs to be collected and sorted.

[0043] The positioning rod 72 is pulled outward, so that the positioning rod 72 and the positioning hole 73 cooperate with each other. At this time, the control ring 631 can be easily pushed to rotate at the inner wall of the winding ring 4. The control ring 631 drives the gear ring 632 to rotate synchronously. The gear ring 632 and the bearing toothed disc 622 are meshed and driven to drive the bearing toothed disc 622 to rotate in the storage cavity 621. The bearing toothed disc 622 drives the support rod 61 to rotate to the outside of the winding ring 4. After the support rod 61 rotates to a suitable position, the positioning rod 72 is released, and the positioning rod 72 is inserted into another group of positioning holes 73 on the surface of the control ring 631. At this time, the positions of the control ring 631 and the support rod 61 can be easily fixed. Multiple groups of support rods 61 adjacent in the vertical direction form a winding area, and the extra-long optical cable is wound on the surface of the winding ring 4. The optical cable is located in the winding area between the upper and lower rows of support rods 61. During the winding process of the optical cable, the multiple groups of support rods 61 distributed in the vertical direction on the surface of the winding ring 4 can effectively layer and block the optical cable, thereby effectively improving the heat dissipation effect of the optical cable during use.

[0044] After the box cover 11 is fitted and locked with the box body 1, the upper sealing ring 52 at the bottom of the box cover 11 is inserted to the outside of the lower sealing ring 51, and the outer sealing ring 53 on the surface of the upper sealing ring 52 is fitted with the inner wall of the box body 1, and the inner sealing ring 54 on the surface of the upper sealing ring 52 is fitted with the surface of the lower sealing ring 51. At this time, the outer sealing ring 53 and the inner sealing ring 54 are in a closed state. The outer sealing ring 53 can perform a preliminary sealing treatment between the box body 1 and the box cover 11. When the outer sealing ring 53 is damaged, rainwater flows through the outer sealing ring 53 along the gap between the box body 1 and the box cover 11 to the surface of the lower sealing ring 51, and the humidity sensor 55 can generate an alarm signal in real time to remind the staff to repair it, and the inner sealing ring 54 can further perform a sealing treatment between the box body 1 and the box cover 11, effectively preventing rainwater from flowing directly into the inner cavity of the box body 1.

[0045] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A fiber distribution box for optical cables used in communication, comprising a box body, a box cover rotatably mounted on the surface of the box body, and an optical splitter fixedly mounted in the inner cavity of the box body, characterized in that: A winding ring located on one side of the optical splitter is fixedly installed in the inner cavity of the box; The surface of the winding ring is provided with a layered winding mechanism, the layered winding mechanism includes a support rod, a storage component and an adjustment component, and the support rod is provided with multiple groups; The storage assembly is located on the side wall of the winding ring and connected to the support rods, and the storage assembly is used to control multiple groups of support rods to be distributed in a circular shape with equal spacing at different heights on the surface of the winding ring; The adjusting component is located on the inner side wall of the winding ring and is connected to the receiving component. The adjusting component adjusts the relative position of the support rod and the winding ring by cooperating with the receiving component. A water leakage warning component is arranged between the box body and the box cover, and the water leakage warning component is used to monitor the sealing condition between the box body and the box cover.

2. A communication optical cable fiber distribution box according to claim 1, characterized in that: The storage assembly includes a plurality of storage cavities arranged in a circular shape and at equal intervals at different heights on the side wall of the winding ring. The storage cavity is an L-shaped structure. The width direction of the storage cavity passes through the inner and outer sides of the winding ring. A load-bearing gear disk is rotatably installed in the storage cavity, and one end of the support rod is fixedly connected to the side wall of the load-bearing gear disk.

3. A communication optical cable fiber distribution box according to claim 2, characterized in that: The adjustment assembly includes multiple groups of control rings rotatably installed on the inner wall of the winding ring, and the multiple groups of control rings are evenly spaced along the vertical direction. The side walls of the control rings are provided with annular gear rings, and the gear rings are meshed and connected with the load-bearing gear discs at the same height. The inner wall of the winding ring is provided with a limiting portion that cooperates with the control ring, and the limiting portion is used to adjust the position of the control ring on the inner wall of the winding ring.

4. The optical fiber distribution box for communication according to claim 3, characterized in that: The limiting portion includes a telescopic hole opened on the inner wall of the winding ring and located outside the control ring. Two groups of positioning holes distributed in parallel are opened on the surface of the control ring. A positioning rod is slidably installed in the telescopic hole. One end of the positioning rod extends to the outside of the positioning hole and is engaged with the positioning hole. A pulling spring is fixedly installed in the telescopic hole, and the telescopic end of the pulling spring is connected to the positioning rod.

5. The optical fiber distribution box for communication according to claim 3, characterized in that: An annular guide groove is provided on the inner side wall of the winding ring, a guide ring is rotatably installed in the guide groove, and the guide ring extends to the outside of the guide groove and is fixedly connected to the control ring.

6. The optical fiber distribution box for communication according to claim 1, characterized in that: The water leakage warning component includes a lower sealing ring fixedly installed on the top of the inner wall of the box body, an upper sealing ring that cooperates with the lower sealing ring is fixedly installed on the bottom of the inner wall of the box cover, and the vertical cross-sections of the lower sealing ring and the upper sealing ring are both L-shaped structures. An outer sealing ring is fixedly installed on the outer side wall of the upper sealing ring, an inner sealing ring is fixedly installed on the inner side wall of the upper sealing ring, and a humidity sensor is fixedly installed on the surface of the lower sealing ring.

7. The optical fiber distribution box for communication according to claim 1, characterized in that: Annular sealing gaskets are respectively arranged on two side walls of the box body and the box cover that are opposite to each other.

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