CN217718188U - Optical cable joint box - Google Patents

Abstract

The application discloses an optical cable joint box, which is used for optical cable joints and comprises a box body, an external locking device and an internal locking device, wherein the external locking device and the internal locking device are detachably arranged in the box body; the box body is provided with a wire passing port suitable for the optical cable to pass through, the external locking device is suitable for being installed outside the wire passing port and being suitable for fixing the outer wall of the optical cable, and the internal locking device is suitable for being installed inside the wire passing port and being suitable for fixing the reinforcing core inside the optical cable. This application has effectively strengthened the fixed effect of optical cable joint box to the optical cable to install outside locking device and inside locking device detachably in the box body, be difficult for losing, and when optical cable joint box was used for the wiring, alright be used for fixed optical cable after dismantling, comparatively simple and convenient, in addition, outside locking device installs in the outside of optical cable joint box when fixed, thereby increase box body inner space, make things convenient for the wiring personnel to carry out wiring work.

Description

Optical cable joint box

Technical Field

The application relates to the technical field of optical cables, in particular to an optical cable connector box.

Background

The optical cable joint box is a splicing part which connects two or more optical cables together and is provided with a protective component, is one of very important equipment which must be adopted in the construction of optical cable line engineering, and is used as the splicing part and is very important for fixing the optical cables in order to ensure the splicing stability.

However, current cable joint box is not stable enough to the fixed of optical cable, and is used for the locking device of fixed optical cable outer wall to mostly all set up inside the box body, leads to the inner space to reduce, the work of working of being not convenient for to locking device adopts accessories such as larynx hoop mostly, easily loses, is unfavorable for depositing and transporting.

Disclosure of Invention

An object of this application is to provide an optical cable joint box who strengthens that the optical cable is fixed, convenient wiring and conveniently deposit and transport.

In order to achieve the above purpose, the technical scheme adopted by the application is as follows: an optical cable splice closure for an optical cable splice, comprising a closure body, an external locking means and an internal locking means, the external locking means and the internal locking means being removably mounted within the closure body; the box body is provided with a wire passing port suitable for the optical cable to pass through, the external locking device is suitable for being installed outside the wire passing port and being suitable for fixing the outer wall of the optical cable, and the internal locking device is suitable for being installed inside the wire passing port and being suitable for fixing the reinforcing core inside the optical cable.

Preferably, a support structure is detachably mounted in the box body, and when the support structure is mounted in the box body, the support structure is suitable for internal wiring; and when the support structure is arranged outside the box body, the support structure is suitable for external wiring. The support structure is arranged inside, so that the wiring staff can conveniently manage wires, and the support structure can be used for connecting an external device when being arranged outside.

Preferably, the external locking device includes a first mounting seat, a clamping cover and a first fixing bolt, the clamping cover is disposed on the first mounting seat through the first fixing bolt, the clamping cover and the first mounting seat are suitable for forming a wire clamping opening corresponding to the wire passing opening, the wire clamping opening is suitable for the optical cable to pass through, and the first fixing bolt is screwed to reduce the size of the wire clamping opening, so that the outer wall of the optical cable is clamped and fixed. The structure is used for fixing the outer wall of the optical cable.

Preferably, the clamping cover is of an arch bridge structure, and a semicircular first groove part is formed in the center of the bottom end of the clamping cover; the two sides of the top end of the first mounting seat gradually sink downwards towards the center, so that the clamping cover and the first mounting seat are combined to form the wire clamping port; and the two sides of the top end of the first mounting seat are symmetrically provided with second groove parts, so that the center of the top end of the first mounting seat protrudes upwards to form a protruding part, when the optical cable is placed in the wire clamping port, the protruding part abuts against the outer wall of the optical cable and screws the first fixing bolt, and the two ends of the clamping cover are suitable for being pressed downwards and inserted into the second groove parts. Above-mentioned structure is used for fixed optical cable outer wall to effectively increase first fixing bolt's the degree of screwing, thereby improve the fixed stability of optical cable.

Preferably, the internal locking device comprises a second mounting seat, a fixing column and a second fixing bolt, the fixing column is transversely arranged on the second mounting seat, a transversely arranged fixing hole corresponding to the wire passing port is formed in the fixing column, and the fixing hole is suitable for the reinforcing core to pass through; and the fixing column is also provided with a positioning hole which is longitudinally arranged and communicated with the fixing hole, the second fixing bolt is suitable for penetrating through the positioning hole to be inserted into the fixing hole, and the second fixing bolt is screwed and suitable for clamping and fixing the reinforcing core. The structure is used for fixing the reinforced core in the optical cable.

Further preferably, the external locking device comprises a first mounting seat, the internal locking device comprises a second mounting seat, a first clamping protrusion is arranged on the first mounting seat, a second clamping protrusion is arranged on the second mounting seat, a third clamping protrusion corresponding to the first clamping protrusion is arranged on the outer wall of the box body, a fourth clamping protrusion corresponding to the second clamping protrusion is arranged on the inner wall of the box body, the first clamping protrusion and the third clamping protrusion are suitable for being matched to limit the first mounting seat to move transversely, and the second clamping protrusion and the fourth clamping protrusion are suitable for being matched to limit the second mounting seat to move transversely; and the first clamping bulge is suitable for longitudinally sliding on the third clamping bulge, the second clamping bulge is suitable for longitudinally sliding on the fourth clamping bulge, the third clamping bulge and the bottom end of the fourth clamping bulge are both provided with a support piece, and the support piece is suitable for limiting the first clamping bulge and the second clamping bulge to longitudinally and downwards move. The structure is used for connecting the external locking device and the internal locking device with the box body.

Further preferably, the first clamping protrusion and the second clamping protrusion are of the same specification, and correspondingly, the third clamping protrusion and the fourth clamping protrusion are of the same specification, so that the first clamping protrusion and the second clamping protrusion are both suitable for being connected with the third clamping protrusion and the fourth clamping protrusion. The structure is convenient for storing the external locking device.

Further preferably, a plurality of third clamping protrusions and a plurality of fourth clamping protrusions are arranged transversely, and the third clamping protrusions and the fourth clamping protrusions are arranged horizontally; the wire passing ports are provided with a plurality of groups, the wire passing ports in each group are longitudinally arranged along the third clamping protrusions, the wire passing ports in each group are transversely arranged, and the intervals between the wire passing ports in each group are equal to the intervals between the third clamping protrusions. The structure fully and reasonably utilizes the space and effectively ensures the use simplicity.

Further preferably, the support structure comprises a base and an assembly part, the base is detachably connected with the box body through bolts, first connecting parts are arranged on two sides of the base, and sliding rails are arranged on the first connecting parts; sliding parts corresponding to the sliding rails are arranged on two sides of the assembly part, and the assembly part is suitable for longitudinally sliding in the sliding rails through the sliding parts; the sliding part is provided with a limiting bulge, the sliding rail is provided with a limiting groove corresponding to the limiting bulge, and the limiting bulge and the limiting groove are suitable for being matched with each other to limit the longitudinal movement of the sliding part on the sliding rail; and force is applied to the sliding part to drive the limiting protrusion to be separated from the limiting groove. The above structure reliably ensures that the assembly member slides longitudinally on the base, and the assembly member is positioned at a defined position.

Further preferably, a second connecting piece arranged in parallel with the first connecting piece is further arranged in the center of the base, the second connecting piece is suitable for forming two mounting grooves suitable for placing the assembly piece with the two first connecting pieces, and the assembly piece is provided with two mounting grooves which are respectively arranged in parallel in one mounting groove; the second connecting piece is suitable for separating the two assembly pieces, and the sliding rails are arranged on two sides of the second connecting piece, so that the two assembly pieces can move relatively. The structure is used for increasing the number of the assembling parts, so that the number of the interfaces which can be used for connection is increased, and the two assembling parts can move relatively, so that the two assembling parts can be arranged in a staggered mode during assembling, and the assembling is convenient.

Compared with the prior art, the beneficial effect of this application lies in:

(1) This application has adopted the technical means who sets up outside locking device and inside locking device, the fixed effect of cable joint box to the optical cable has effectively been strengthened, and install outside locking device and inside locking device detachably in the box body, two kinds of locking device all can install in the box body when having realized depositing and transporting, be difficult for losing, when the cable joint box is used for the wiring, alright be used for fixed optical cable after dismantling, comparatively simple and convenient, furthermore, outside locking device installs in the outside of cable joint box when fixed, thereby increase box body inner space, make things convenient for the wiring personnel to carry out the work of working a telephone switchboard.

(2) This application has adopted and has set up the technical means who can dismantle supporting structure in that the box body is inside, when supporting structure installs inside the box body, can be used to connect the optical cable, plays the effect of reason line, when supporting structure installs outside at the box body, can be used to connect external device, and is comparatively convenient.

Drawings

Fig. 1 is a schematic structural view of a cable closure of the present application;

fig. 2 is a schematic view of the internal structure of the optical cable:

FIG. 3 is an enlarged view of a portion of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 1;

fig. 5 is a schematic view of the internal structure of the cable closure of the present application;

fig. 6 is a top view of the internal structure of the cable closure of the present application;

FIG. 7 is an enlarged view of a portion of FIG. 5;

fig. 8 is a schematic structural view of a support structure in a cable closure according to the present application;

fig. 9 is a schematic structural view of a shelf structure in a cable closure according to the present application;

fig. 10 is a schematic view of a support structure in a cable closure according to the present application;

fig. 11 is a partially enlarged view of fig. 8.

In the figure: 100. an optical cable; 101. an outer wall; 102. a reinforcing core; 103. an optical fiber; 1. a box body; 11. a wire passing port; 12. a third snap projection; 13. a support member; 14. a fourth clamping protrusion; 2. an external locking device; 21. a first mounting seat; 211. a first clamping protrusion; 212. a second groove portion; 213. a boss member; 22. clamping the cover; 221. a first groove portion; 23. a first fixing bolt; 24. a wire clamping port; 3. an internal locking device; 31. a second mounting seat; 311. a second clamping protrusion; 32. fixing a column; 33. a second fixing bolt; 4. a scaffold structure; 41. a base; 411. a first connecting member; 412. a slide rail; 4121. a limiting groove; 413. a second connecting member; 414. mounting grooves; 42. an assembly member; 421. a slider; 4211. a limiting bulge; 5. winding a wire path; 6. and (7) welding a plate.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate orientations and positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in fig. 2, the structure of the currently-used optical cable 100 is: the optical cable comprises an outer wall 101 consisting of a flame-retardant layer, a waterproof layer, a sheath layer and the like, optical fibers 103 and a reinforced core 102 which can enhance the strength of the optical cable 100, protect the internal optical fibers 103 from external force and greatly protect the optical fibers 103 in the optical cable 100.

As shown in fig. 1 to 11, the preferred embodiment of the present application is:

a cable closure for a cable 100 splice, comprising: the box comprises a box body 1, an external locking device 2 and an internal locking device 3, wherein the external locking device 2 and the internal locking device 3 are detachably arranged in the box body 1; the box body 1 is provided with a wire passing port 11 suitable for the optical cable 100 to pass through, the external locking device 2 is suitable for being installed outside the wire passing port 11 and being suitable for fixing the outer wall 101 of the optical cable 100, and the internal locking device 3 is suitable for being installed inside the wire passing port 11 and being suitable for fixing the reinforced core 102 inside the optical cable 100.

The cable closure is mainly used for splicing the optical cable 100, and therefore, the fixing effect of the optical cable 100 is particularly important, so that the inventor of the present application fixes the outer wall 101 of the optical cable 100 and the reinforcing core 102 inside the optical cable 100 by arranging the external locking device 2 and the internal locking device 3, respectively, and effectively enhances the fixing effect of the optical cable 100, thereby reliably ensuring the normal splicing work of the cable closure.

In addition, be used for fixed optical cable 100's locking device to all set up inside box body 1 mostly in the present market among the optical cable splice box, even can play certain guard action to locking device, but can occupy the inner space of box body 1 to a certain extent, and the optical cable splice box is continuous when connecing the work, 1 inside a large amount of optic fibre 103 that can be equipped with of box body, demand to the space is great, the setting can influence the staff's work efficiency to a certain extent in inside, consequently, the inventor of this application selects outside locking device 2 that will be used for fixed outer wall 101 to locate 1 outsidely of box body, can effectively solve above-mentioned problem.

And, the part that is used for fixed outer wall 101 among the traditional technical scheme mostly adopts accessories such as hose clamp, need additionally deposit, loses easily, is unfavorable for depositing and transporting, therefore the inventor of this application installs outside locking device 2 and inside locking device 3 equal detachable inside box body 1, when depositing and transporting, just installs both inside to can avoid taking place to lose, also conveniently carry, and when needs begin to work, alright dismantle get off and fix, it is comparatively convenient.

As shown in fig. 3 and 7, in the present embodiment, the external locking device 2 includes a first mounting seat 21, a clamping cover 22 and a first fixing bolt 23, the clamping cover 22 is disposed on the first mounting seat 21 via the first fixing bolt 23, the clamping cover 22 and the first mounting seat 21 are adapted to form a wire clamping opening 24 corresponding to the wire passing opening 11, the wire clamping opening 24 is adapted to place the optical cable 100 therein, and tightening the first fixing bolt 23 is adapted to reduce the size of the wire clamping opening 24, so as to clamp and fix the outer wall 101 of the optical cable 100. The structure is simple and stable, the operation is simple and convenient, the first mounting seat 21 and the clamping cover 22 form the wire clamping opening 24 suitable for placing the optical cable 100, and after the optical cable 100 enters the wire passing opening 11 through the wire clamping opening 24, the fixing effect on the optical cable 100 is achieved by screwing the first fixing bolt 23.

Further, as a specific structure for forming the wire clamping opening 24, in the present embodiment, the clamping cover 22 has an arch bridge-shaped structure, and a semicircular first groove portion 221 is provided in the center of the bottom end of the clamping cover 22; the two lateral sides of the top end of the first mounting seat 21 are gradually recessed downwards towards the center, so that the clamping cover 22 and the first mounting seat 21 are combined to form the wire clamping opening 24, it is worth mentioning that the specific shapes of the clamping cover 22, the top end surface of the first mounting seat 21 and the first groove portion 221 are not limited, and the shape structures in this embodiment are to better fit the optical cable 100, so as to enhance the stability of the fixation.

Further, in this embodiment, the two sides of the top end of the first mounting seat 21 are symmetrically provided with second groove portions 212, so that the center of the top end of the first mounting seat 21 protrudes upwards to form a protrusion 213, when the optical cable 100 is placed in the wire clamping opening 24, the protrusion 213 abuts against the optical cable 100 and screws the first fixing bolt 23, and the two ends of the clamping cover 22 are adapted to be pressed downwards and inserted into the second groove portions 212. The above structure effectively increases the degree of pressing down of the clamping cover 22, and can further reduce the size of the cable clamping port 24, on one hand, the stability of fixation is enhanced, and on the other hand, the applicability of the external locking device 2 of the present application to the optical cable 100 of a small specification can be increased.

As shown in fig. 6 and 7, in the present embodiment, the internal locking device 3 includes a second mounting seat 31, a fixing post 32 and a second fixing bolt 33, the fixing post 32 is transversely disposed on the second mounting seat 31, and a fixing hole which is transversely disposed and corresponds to the wire passing port 11 is disposed in the fixing post 32, and the fixing hole is suitable for the reinforcing core 102 to pass through; the fixing post 32 is further provided with a positioning hole longitudinally arranged and communicated with the fixing hole, and the second fixing bolt 33 is suitable for penetrating through the positioning hole and being inserted into the fixing hole, and screwing the second fixing bolt 33 is suitable for clamping and fixing the reinforcing core 102. The structure is simple and stable, the operation is simple and convenient, and the fixing effect of the reinforcing core 102 in the optical cable 100 is reliably ensured.

As shown in fig. 4 and 7, as a connection manner of the external locking device 2 and the internal locking device 3 in the present application, in this embodiment, the external locking device 2 includes a first mounting seat 21, the internal locking device 3 includes a second mounting seat 31, the first mounting seat 21 is provided with a first clamping protrusion 211, the second mounting seat 31 is provided with a second clamping protrusion 311, the outer wall of the box body 1 is provided with a third clamping protrusion 12 corresponding to the first clamping protrusion 211, and the inner wall is provided with a fourth clamping protrusion 14 corresponding to the second clamping protrusion 311, the first clamping protrusion 211 and the third clamping protrusion 12 are adapted to cooperate to limit the lateral movement of the first mounting seat 21, and the second clamping protrusion 311 and the fourth clamping protrusion 14 are adapted to cooperate to limit the lateral movement of the second mounting seat 31; and first clamping projection 211 is adapted to slide longitudinally on third clamping projection 12, and second clamping projection 311 is adapted to slide longitudinally on fourth clamping projection 14; support parts 13 are arranged at the bottom ends of the third clamping protrusion 12 and the fourth clamping protrusion 14, and the support parts 13 are suitable for limiting the first clamping protrusion 211 and the second clamping protrusion 311 to move downwards longitudinally.

In addition, in the present embodiment, the first clamping protrusion 211 and the third clamping protrusion 12, and the second clamping protrusion 311 and the fourth clamping protrusion 14 are in an inverted L-shaped structure, so as to implement clamping, and the third clamping protrusion 12 and the fourth clamping protrusion 14 are in a longitudinal elongated structure, so that the first clamping protrusion 211 is adapted to slide on the third clamping protrusion 12, and the second clamping protrusion 311 is adapted to slide on the fourth clamping protrusion 14, so that when a user installs the external locking device 2 and the internal locking device 3, the first clamping protrusion 211 and the second clamping protrusion 311 only need to be aligned with the third clamping protrusion 12 and the fourth clamping protrusion 14, and then the user releases the first clamping protrusion 211 and the second clamping protrusion 311 to slide under their own gravity to complete connection, and the bottom end of the third clamping protrusion 12 and the fourth clamping protrusion 14 is provided with the support 13, so as to implement the function of automatic positioning in automatic sliding, and the cassette 1 is provided with the cover body, after the connection is completed, the cover body is provided with the cover body, so that the cover body 211 and the second clamping protrusion 13 can be used to limit the vertical movement of the first clamping protrusion 311 and the second clamping protrusion 311 to be separated from the cover 1, so as to limit the vertical movement of the cassette.

Further, in this embodiment, the first and second engaging protrusions 211 and 311 are of the same size, and the corresponding third and fourth engaging protrusions 12 and 14 are also of the same size, so that the first and second engaging protrusions 211 and 311 are suitable for being connected with the third and fourth engaging protrusions 12 and 14, and the structure changes the first and second connecting bases 21 and 31 into mutually common parts, which makes the use of the external and internal locking devices 2 and 3 more flexible, and in actual use, the fixing holes can be set to allow the optical cable 100 to pass through, when the external locking device 2 is insufficient, the internal locking device 3 can be used to replace the external locking device 2 to fix the outer wall 101, whereas the external locking device 2 can also be used to replace the internal locking device 3, and it is worth mentioning that the structure can also be used as a detachable mounting means for the external and internal locking devices 2 and 3, when the splice closure is stored and transported, both the external and internal locking devices 2 and 3 are connected with the internal fourth engaging protrusion 14, and the fourth engaging protrusion 14 is connected with the internal locking device 2 and the external locking device 2 and the inner locking device 2 and the outer locking device 2 and the inner locking device 3 can not be folded together, and the outer locking device 2 and the inner locking device can be folded together, and the outer locking device can be folded together, and the inner locking device can be folded together, and the outer locking device can be prevented from the inner locking device 2 and the outer locking device 13.

Moreover, as shown in fig. 5 and fig. 6, in the present embodiment, a support structure 4 is detachably mounted in the box body 1, and the support structure 4 is suitable for internal wiring when being mounted inside the box body 1; and the support structure 4 is adapted for external wiring when mounted outside the box 1. Above-mentioned structure is nimble changeable, installs when box body 1 is inside, can be used to connect optic fibre 103 in the box body 1, plays the effect of reason line, when needing to connect between the device of outside, supporting structure 4 can dismantle outside and device wiring.

In this embodiment, the supporting structure 4 includes a base 41, the base 41 is detachably connected to the box body 1 through a bolt, and the detachable connection can be realized by means of a buckle, a thread connection, and the like.

Further, as shown in fig. 8-10, in the present embodiment, the supporting structure 4 further includes an assembly member 42, two sides of the base 41 are provided with a first connecting member 411 formed by protruding upwards, and the first connecting member 411 is provided with a sliding rail 412; the assembly member 42 includes sliding members 421 disposed on two sides of the assembly member 42 and corresponding to the sliding rails 412, the sliding members 421 are adapted to slide longitudinally in the sliding rails 412, and the above-mentioned structure is used for realizing the function of the assembly member 42 capable of moving longitudinally.

Further, as shown in fig. 11, in the present embodiment, a limiting protrusion 4211 is disposed on the sliding piece 421, a limiting groove 4121 corresponding to the limiting protrusion 4211 is disposed on the sliding rail 412, and the limiting protrusion 4211 and the limiting groove 4121 are adapted to cooperate with each other to limit the longitudinal movement of the sliding piece 421 on the sliding rail 412; and the application of force on slider 421 is suitable for and drives spacing arch 4211 and breaks away from spacing recess 4121, and above-mentioned structure makes built-up member 42 can stabilize and wiring after the limited position, can satisfy different wiring requirements, and is more nimble and simple and convenient to only need increase the power of exerting on slider 421 during the dismantlement, alright realize breaking away from, it is comparatively convenient.

It should be noted that, in the present embodiment, the center of the base 41 is further provided with a second connecting member 413 disposed in parallel with the first connecting member 411, the second connecting member 413 is adapted to form two mounting slots 414 adapted to place the assembly member 42 with the two first connecting members 411, the assembly member 42 has two, and is respectively disposed in parallel in one of the mounting slots 414; the second connecting member 413 is adapted to separate the two assembling members 42, and two sides of the second connecting member 413 are provided with sliding rails 412, so that the two assembling members 42 can move relatively. The structure increases the installation number of the assembly parts 42, so that the number of interfaces which can be used for wiring is increased, and the optical cable joint box has stronger adaptability.

Moreover, in this embodiment, as shown in fig. 6, the optical cable splice closure further includes a winding channel 5 and a splice tray 6, where the winding channel 5 is used for providing a winding channel for the optical fibers 103 during wiring, so as to perform a certain positioning and limiting function, thereby facilitating a user to perform wire arrangement and wiring, and the splice tray 6 is used for providing a place for connecting different optical fibers 103.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and such changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims (10)

1. An optical cable splice closure for an optical cable splice, comprising: the box comprises a box body, an external locking device and an internal locking device, wherein the external locking device and the internal locking device are detachably arranged in the box body; the box body is provided with a wire passing port suitable for the optical cable to pass through, the external locking device is suitable for being installed outside the wire passing port and being suitable for fixing the outer wall of the optical cable, and the internal locking device is suitable for being installed inside the wire passing port and being suitable for fixing the reinforcing core inside the optical cable.

2. A cable closure according to claim 1, wherein: a support structure is detachably arranged in the box body, and when the support structure is arranged in the box body, the support structure is suitable for internal wiring; and when the support structure is arranged outside the box body, the support structure is suitable for external wiring.

3. A cable closure according to claim 1, wherein: the external locking device comprises a first mounting seat, a clamping cover and a first fixing bolt, the clamping cover is arranged on the first mounting seat through the first fixing bolt, the clamping cover and the first mounting seat are suitable for forming a wire clamping opening corresponding to the wire passing opening, the wire clamping opening is suitable for the optical cable to pass through and is screwed, and the first fixing bolt is suitable for reducing the size of the wire clamping opening so as to enable the outer wall of the optical cable to be clamped and fixed.

4. A cable closure according to claim 3, wherein: the clamping cover is of an arch bridge-shaped structure, and a semicircular first groove part is formed in the center of the bottom end of the clamping cover; two sides of the top end of the first mounting seat gradually sink downwards towards the center, so that the clamping cover and the first mounting seat are combined to form the wire clamping port; and the two sides of the top end of the first mounting seat are symmetrically provided with second groove parts, so that the center of the top end of the first mounting seat protrudes upwards to form a protruding part, when the optical cable is placed in the wire clamping port, the protruding part abuts against the outer wall of the optical cable and screws the first fixing bolt, and the two ends of the clamping cover are suitable for being pressed downwards and inserted into the second groove parts.

5. A cable closure according to claim 1, wherein: the internal locking device comprises a second mounting seat, a fixing column and a second fixing bolt, the fixing column is transversely arranged on the second mounting seat, a fixing hole which is transversely arranged and corresponds to the wire passing port is formed in the fixing column, and the fixing hole is suitable for the reinforcing core to pass through; and the fixing column is also provided with a positioning hole which is longitudinally arranged and communicated with the fixing hole, the second fixing bolt is suitable for penetrating through the positioning hole to be inserted into the fixing hole, and the second fixing bolt is screwed and is suitable for clamping and fixing the reinforcing core.

6. A cable closure according to claim 1, wherein: the external locking device comprises a first mounting seat, the internal locking device comprises a second mounting seat, a first clamping protrusion is arranged on the first mounting seat, a second clamping protrusion is arranged on the second mounting seat, a third clamping protrusion corresponding to the first clamping protrusion is arranged on the outer wall of the box body, a fourth clamping protrusion corresponding to the second clamping protrusion is arranged on the inner wall of the box body, the first clamping protrusion and the third clamping protrusion are suitable for being matched to limit the first mounting seat to move transversely, and the second clamping protrusion and the fourth clamping protrusion are suitable for being matched to limit the second mounting seat to move transversely; just first joint is protruding to be suitable for longitudinal sliding on the third joint arch, the second joint is protruding to be suitable for longitudinal sliding on the fourth joint arch, the third joint protruding with the protruding bottom of fourth joint all is equipped with support piece, support piece is suitable for the restriction first joint protruding with the protruding vertical downstream of second joint.

7. A cable closure according to claim 6, wherein: first joint protruding with the protruding same specification of second joint, it is corresponding the third joint protruding with the protruding same specification of fourth joint is protruding, so that first joint protruding with the second joint protruding all be suitable for with the third joint protruding with the protruding connection of fourth joint.

8. A cable closure according to claim 6, wherein: the third clamping bulges and the fourth clamping bulges are transversely arranged in plurality and are horizontally arranged; the wire passing ports are provided with a plurality of groups, the wire passing ports in each group are longitudinally arranged along the third clamping protrusions, the wire passing ports in each group are transversely arranged, and the intervals between the wire passing ports in each group are equal to the intervals between the third clamping protrusions.

9. A cable closure according to claim 2, wherein: the support structure comprises a base and an assembly part, wherein the base is detachably connected with the box body through bolts, first connecting pieces are arranged on two sides of the base, and sliding rails are arranged on the first connecting pieces; sliding parts corresponding to the sliding rails are arranged on two sides of the assembly part, and the assembly part is suitable for longitudinally sliding in the sliding rails through the sliding parts; the sliding part is provided with a limiting bulge, the sliding rail is provided with a limiting groove corresponding to the limiting bulge, and the limiting bulge and the limiting groove are suitable for being matched with each other to limit the longitudinal movement of the sliding part on the sliding rail; and force is applied to the sliding part to drive the limiting protrusion to be separated from the limiting groove.

10. A cable closure according to claim 9, wherein: the center of the base is also provided with a second connecting piece which is arranged in parallel with the first connecting piece, the second connecting piece is suitable for forming two mounting grooves suitable for placing the assembly pieces with the two first connecting pieces, and the assembly pieces are provided with two mounting grooves which are respectively arranged in parallel in one mounting groove; the second connecting piece is suitable for separating the two assembly pieces, and the sliding rails are arranged on two sides of the second connecting piece, so that the two assembly pieces can move relatively.

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