Optical fiber splice closure mounting structure

Abstract

The utility model discloses an optical fiber splice closure mounting structure, which comprises a body and two optical fiber chucks, the body comprises an upper cover and a lower cover which are arranged oppositely, and the two optical fiber chucks are respectively arranged at two ends of the body; the optical fiber chuck comprises an upper clamping block and a lower clamping block, and the upper clamping block and the lower clamping block are oppositely arranged. According to the optical fiber splice closure, the main body and the optical fiber chucks are arranged in a split manner, the optical fiber chucks can be independently arranged on the optical cables, the upper clamping block and the lower clamping block are oppositely combined, so that the arrangement operation is simple and rapid, any upward positions of the optical fiber chucks and the optical cables can be randomly adjusted, and the guiding and positioning of a plurality of optical cables can be realized; meanwhile, the optical fiber chuck and the main body are fixed in an inserted mode, the optical fiber and the main body can be fixed, stable welding and wiring of the optical fiber in the splice closure are ensured, and the main body and the optical fiber chuck are arranged in a split mode, so that flexible adjustment and rapid and convenient operation in optical fiber splicing work are provided.

Description

Technical Field

[0001] The utility model belongs to the technical field of communication connection equipment and relates to an optical fiber splicing box installation structure. Background Art

[0002] The fiber optic splice box is to place two or more optical cables that have been fused by a fiber fusion machine one by one in a standard order, and the excess part is coiled in the box in an inverted 8 shape. The coiling radius should not be less than 4cm (to avoid breaking the optical fiber), and the coiling is required to be neat. The optical cable splice box has the function of protecting the splicing part of the components. It is a must-use in the optical fiber splicing part of the optical cable line construction, and it is one of the most important equipment. The quality of the optical cable splice box directly affects the quality of the optical cable line and the service life of the optical cable line.

[0003] The most commonly used existing fiber optic splicing box products are in the form of an upper cover and a lower cover that are matched together. The lower cover is provided with cable entry holes and fastening plates for fastening the optical cable on both sides. The optical cable is directly fixed on the lower cover during installation. After the optical fiber is installed in the box, the upper and lower covers are closed and sealed by means of glue filling or the like. This existing installation method is very difficult for the operator to operate. Since there are multiple sub-optical fibers and a large number of wire bundles in the box, the length of the inlet and outlet wires needs to be frequently adjusted during welding. Therefore, the direct fixation of the optical cable to the lower cover is not conducive to convenient and fast operation, and is also prone to causing the wire bundle to be messy or damaged. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an optical fiber splicing box installation structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A fiber optic splicing box installation structure comprises a body and two fiber optic chucks, wherein the body comprises an upper cover and a lower cover which are arranged in abutment with each other, and the two fiber optic chucks are respectively arranged at two ends of the body; the fiber optic chucks comprise an upper clamping block and a lower clamping block, the upper clamping block and the lower clamping block are arranged in abutment with each other and form a threading hole for the fiber optic to pass through; the outer peripheries of the upper clamping block and the lower clamping block are both provided with inserting pieces, and the upper cover and the lower cover are respectively provided with slots for the inserting pieces to be inserted.

[0007] Furthermore, it also includes a first sealing member, which includes a connecting portion and a wire wrapping portion, the connecting portion is clamped between the upper clamping block and the lower clamping block, the wire wrapping portion is passed through the wire threading hole, a film is arranged in the wire wrapping portion, and a through hole is opened in the middle of the film for the optical fiber to pass through.

[0008] Furthermore, a slit is provided on the outer periphery of the wire wrapping portion, and the slit extends radially into the wire wrapping portion until it is connected to the through hole.

[0009] Furthermore, the number of the threading holes is set to two, and they are symmetrically arranged on both sides of the optical fiber clamp.

[0010] Furthermore, it also includes a second sealing member, which includes a peripheral rubber strip and an inner groove rubber strip. The upper cover and the lower cover are respectively provided with grooves for accommodating the peripheral rubber strip, and the inner groove rubber strip is arranged on the inner wall of the slot.

[0011] Furthermore, a protrusion is provided on the wire wrapping portion, and a through groove for the protrusion to pass through is provided on the optical fiber clamp, and the protrusion abuts against the second sealing member.

[0012] Furthermore, the upper clamping block and the lower clamping block are respectively provided with coaxially penetrating fixing holes.

[0013] Furthermore, a clamping elastic sheet is provided on one of the upper clamping block and the lower clamping block, and the clamping elastic sheet is provided at one end of the threading hole. One end of the clamping elastic sheet is fixed to one side of the threading hole, and the other end is provided with a screw hole.

[0014] In summary, the utility model is beneficial in that:

[0015] The optical fiber splicing box of the utility model adopts a separate setting of the main body and the optical fiber chuck, so the optical fiber chuck can be set on the optical cable separately first, and the setting of the upper and lower clamping blocks makes the setting operation simple and fast, and the optical fiber chuck and the optical cable can be adjusted to any position in the line direction at will, so as to realize the guidance and positioning of multiple optical cables. At the same time, the insertion and fixation between the optical fiber chuck and the main body can fix the optical fiber and the main body, ensuring the stable fusion wiring of the optical fiber in the splicing box. The separate setting between the main body and the optical fiber chuck provides flexible adjustment and quick and convenient operation in the optical fiber splicing work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic diagram of the structure of the optical fiber splicing box.

[0017] Figure 2 for Figure 1 Structural schematic diagram of the installation structure in .

[0018] Figure 3 for Figure 2 Schematic diagram of the explosion structure.

[0019] Figure 4 for Figure 3 Schematic diagram of the structure of the first seal.

[0020] Markings in the figure: 11, upper cover; 12, lower cover; 13, bayonet; 14, groove; 15, slot; 2, optical fiber clamp; 21, upper clamp block; 22, lower clamp block; 23, fixing hole; 24, insert; 25, threading hole; 26, clamping elastic sheet; 31, side rubber strip; 32, rubber strip in the groove; 41, connecting part; 42, wire wrapping part; 43, slit; 44, film; 45, through hole; 46, protrusion. DETAILED DESCRIPTION

[0021] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations. The details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0022] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0023] All directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, horizontal, vertical...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0024] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of the present invention may actually be an approximately parallel relationship, and the vertical relationship may actually be an approximately vertical relationship.

[0025] The utility model provides an optical fiber splicing box installation structure, which optimizes the installation operation when the splicing box is used for optical fiber splicing.

[0026] Reference Figure 1 and Figure 2 The mounting structure includes a body and a fiber optic chuck 2, wherein the fiber optic chuck 2 includes an upper clamping block 21 and a lower clamping block 22 which are arranged opposite to each other. The upper clamping block 21 and the lower clamping block 22 are matched to form the fiber optic chuck 2, and fixing holes 23 are coaxially formed on the upper clamping block 21 and the lower clamping block 22, respectively. A bolt is inserted into the fixing holes 23 of the two clamping blocks to fix the upper clamping block 21 and the lower clamping block 22.

[0027] Reference Figure 2 and Figure 3 When the upper clamp block 21 and the lower clamp block 22 are matched (i.e., the optical fiber chuck 2), a threading hole 25 for threading the optical cable is formed. When the optical cable and the optical fiber chuck 2 are set, the upper clamp block 21 and the lower clamp block 22 are respectively placed on both sides of the optical cable. After matching, the optical cable falls into the threading hole 25, and then bolts are installed to fix it. In this embodiment, the number of the threading holes 25 is two, and they are symmetrically located on both sides of the optical fiber chuck 2.

[0028] A clamping elastic sheet 26 is also provided on one of the upper clamping block 21 and the lower clamping block 22. The clamping elastic sheet 26 is a metal sheet structure. The clamping elastic sheet 26 is arranged at an opening position close to one end of the threading hole 25. One end of the clamping elastic sheet 26 is fixedly connected to the upper clamping block 21 or the lower clamping block 22, and the other end is provided with a screw hole. A bolt is passed through the screw hole and the end is fixed to the upper clamping block 21 or the lower clamping block 22, so that the metal elastic sheet clamps the optical cable after passing through the threading hole 25, limits the position of the optical cable and the optical fiber clamp 2, and avoids movement.

[0029] The body comprises an upper cover 11 and a lower cover 12 which are arranged opposite to each other, and the upper cover 11 and the lower cover 12 are matched to form the body, and a cavity for laying optical fibers is arranged in the body, and clamping structures for installing the optical fiber chuck 2 are respectively arranged on both sides of the body, and the clamping structures comprise a bayonet 13 for setting the optical fiber chuck 2 and two slots 15 which are respectively opened on the upper cover 11 and the lower cover 12, and inserting pieces 24 which are used to be inserted into the slots 15 of the upper cover 11 and the slots 15 of the lower cover 12 are respectively arranged on the outer periphery of the upper clamping block 21 and the outer periphery of the lower clamping block 22, and through the cooperation of the slots 15 and the inserting pieces 24, after the upper cover 11 and the lower cover 12 are matched to form the body, they can be fixed to the optical fiber chuck 2.

[0030] In the application scenario of the optical fiber splice box, good sealing inside the splice box can effectively prevent the intrusion of water and dirt, which is an important factor for long-term trouble-free use. The installation structure in this embodiment also includes a sealing assembly, which includes a first sealing member arranged in the optical fiber clamp 2 and a second sealing member arranged in the body, and the sealing members are all made of elastic rubber material.

[0031] Specifically, refer to Figure 4The first sealing member includes a connecting portion 41 and a wire wrapping portion 42 respectively arranged on both sides of the connecting portion 41, the connecting portion 41 is a sheet structure, the connecting portion 41 is clamped between the upper clamping block 21 and the lower clamping block 22, and is also arranged between the two threading holes 25, for respectively fitting with the upper clamping block 21 and the lower clamping block 22 to achieve sealing at this position; the wire wrapping portion 42 is a columnar hollow tube structure, so that the optical cable can pass through the wire wrapping portion 42 axially, and a film 44 is also radially arranged inside the wire wrapping portion 42, and a through hole 45 is opened in the middle of the film 44, and the diameter of the through hole 45 is smaller than the diameter of the optical cable. Therefore, when the optical cable passes through the wire wrapping portion 42, the edge of the through hole 45 on the film 44 is deformed and fits around the circumference of the optical cable, thereby achieving a good sealing effect, and the number of the films 44 can be set to multiple, and the multiple films 44 are arranged in an axial array along the wire wrapping portion 42, thereby achieving a multi-level sealing effect.

[0032] In order to facilitate the installation of the optical cable in the wire wrapping portion 42, a slit 43 is further provided on the outer periphery of the wire wrapping portion 42. The slit 43 is linear and is arranged along the axial direction of the wire wrapping portion 42. The slit 43 is connected to the two ends of the axial direction of the wire wrapping portion 42, and also extends into the wire wrapping portion 42 to the film 44, and is connected to the through hole 45. When the optical cable is installed, the body of the optical cable is aligned with the slit 43 and squeezed inwardly. The elastic material of the wire wrapping portion 42 allows the optical cable to be directly squeezed into the through hole 45 laterally. When the upper clamping block 21 and the lower clamping block 22 are matched and tightened for installation, the outer periphery of the wire wrapping portion 42 fits against the inner circumferential wall of the threading hole 25 and undergoes a certain deformation under extrusion, so that the slit 43 remains tight under extrusion, thereby ensuring the sealing.

[0033] The second sealing member includes a circumferential rubber strip 31 and an inner-groove rubber strip 32. The circumferential sides of the upper cover 11 and the lower cover 12 are both provided with grooves 14 for installing the circumferential rubber strip 31, so that the circumferential rubber strip 31 is located at the periphery of the cavity in the body. When the upper cover 11 and the lower cover 12 are matched, the circumferential rubber strip 31 of the upper cover 11 and the circumferential rubber strip 31 of the lower cover 12 abut against each other to form a seal. The inner-groove rubber strip 32 is provided in the slot 15, and the inner-groove rubber strip 32 is attached to the bottom wall and the side wall of the slot 15. When the optical fiber chuck 2 and the body are installed, after the insert 24 is inserted into the slot 15, the outer periphery of the insert 24 abuts against the inner-groove rubber strip 32 to form a seal.

[0034] On the upper cover 11 or the lower cover 12 , the peripheral rubber strips 31 and the groove rubber strips 32 are arranged in pairs and are connected end to end to ensure the sealing effect of the entire circumference of the body.

[0035] Furthermore, through grooves are respectively provided on both sides of the optical fiber clamp 2, and protrusions 46 are respectively provided on the two opposite sides of the two wire wrapping parts 42. The protrusions 46 are passed through the through grooves, and after the optical fiber clamp 2 is installed with the body, the protrusions 46 abut against the second sealing member, thereby forming a further seal on this side, which is mainly used to seal the gap after the upper clamp block 21 and the lower clamp block 22 are matched.

[0036] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. An optical fiber splicing box installation structure, characterized in that: The invention comprises a body and two optical fiber clamps (2), wherein the body comprises an upper cover (11) and a lower cover (12) which are arranged in abutment with each other, and the two optical fiber clamps (2) are respectively arranged at two ends of the body; the optical fiber clamps (2) comprise an upper clamping block (21) and a lower clamping block (22), wherein the upper clamping block (21) and the lower clamping block (22) are arranged in abutment with each other and form a threading hole (25) for threading optical fibers; the outer peripheries of the upper clamping block (21) and the lower clamping block (22) are both provided with inserting pieces (24), and the upper cover (11) and the lower cover (12) are respectively provided with slots (15) for inserting the inserting pieces (24).

2. The optical fiber splicing box installation structure according to claim 1, characterized in that: The invention also comprises a first sealing member, wherein the first sealing member comprises a connecting portion (41) and a wire wrapping portion (42), wherein the connecting portion (41) is clamped between the upper clamping block (21) and the lower clamping block (22), and the wire wrapping portion (42) is passed through the wire threading hole (25), and a film (44) is arranged in the wire wrapping portion (42), and a through hole (45) for passing the optical fiber is opened in the middle of the film (44).

3. The optical fiber splicing box installation structure according to claim 2, characterized in that: The outer periphery of the wire wrapping portion (42) is provided with a slit (43), and the slit (43) extends radially into the wire wrapping portion (42) until it is connected to the through hole (45).

4. An optical fiber splicing box installation structure according to claim 1 or 2, characterized in that: The number of the threading holes (25) is set to two, and they are symmetrically arranged on both sides of the optical fiber clamp (2).

5. The optical fiber splicing box installation structure according to claim 2, characterized in that: The invention also comprises a second sealing member, the second sealing member comprising a peripheral rubber strip (31) and an inner groove rubber strip (32), the upper cover (11) and the lower cover (12) are respectively provided with a groove (14) for accommodating the peripheral rubber strip (31), and the inner groove rubber strip (32) is arranged on the inner wall of the slot (15).

6. The optical fiber splicing box installation structure according to claim 5, characterized in that: The wire wrapping portion (42) is provided with a protruding portion (46), the optical fiber clamp (2) is provided with a through groove for the protruding portion (46) to pass through, and the protruding portion (46) abuts against the second sealing member.

7. The optical fiber splicing box installation structure according to claim 1, characterized in that: The upper clamping block (21) and the lower clamping block (22) are respectively provided with coaxially penetrating fixing holes (23).

8. The optical fiber splicing box installation structure according to claim 1, characterized in that: A clamping elastic sheet (26) is provided on one of the upper clamping block (21) and the lower clamping block (22), and the clamping elastic sheet (26) is provided at one end of the threading hole (25). One end of the clamping elastic sheet (26) is fixed to one side of the threading hole (25), and the other end is provided with a screw hole.

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