CN205139432U - Mechanical seal end cover of hat type fiber cable joint box - Google Patents
Mechanical seal end cover of hat type fiber cable joint box Download PDFInfo
- Publication number
- CN205139432U CN205139432U CN201520802230.XU CN201520802230U CN205139432U CN 205139432 U CN205139432 U CN 205139432U CN 201520802230 U CN201520802230 U CN 201520802230U CN 205139432 U CN205139432 U CN 205139432U
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- optical cable
- mechanical sealing
- cap body
- sealing end
- sealed tube
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Abstract
The utility model relates to a mechanical seal end cover of hat type fiber cable joint box, it includes that end cover body, optical cable sealed tube and optical cable fix the subassembly. The end cover body includes that holder and a plurality of optical cable get into the port, the fixed unit mount of optical cable is in on the holder of end cover body, the optical cable sealed tube assembles the optical cable of end cover body gets into in the port. The optical cable can pass the optical cable sealed tube enters into in the hat type fiber cable joint box, and fix on the fixed subassembly of optical cable. The optical cable sealed tube with between the end cover body and optical cable sealed tube and insert and form mechanical seal between the optical cable wherein.
Description
Technical field
The utility model relates in general to cable splice closure, and relates more specifically to the mechanical sealing end cover of cap-type optical cable connection box.
Background technology
Cable splice closure is a kind of device conventional in communication, network system, and it connects for the protectiveness between the fiber distribution in fiber optic network, storage and optical fiber.In order to ensure providing stable Signal transmissions, requiring that cable splice closure has good sealing property, connecting to protect the precision of optical fiber wherein.
Common cable splice closure is divided into opposite opened connector box and cap-type connection box.In existing cap-type connection box, realize the end cap seal of cable splice closure mainly through following two kinds of modes.
Scheme is the scheme based on heat-shrink tube, that is, optical cable and end cap entry port are sealed by heat-shrink tube.A feature of this scheme is, needs field power supply or burning things which may cause a fire disaster to perform the heat shrink operation of pipe; And once optical cable has been installed and sealed, just can not easily be removed again.In addition, due to the space that heat-shrink tube action need is certain, the quantity of entry port is restricted.
Another kind of scheme is ECAM mechanical seal scheme, and it adopts packing ring as encapsulant between optical cable and entry port part.A feature of this scheme can remove entry port part easily when needed.But this ECAM mechanical seal scheme needs a large amount of parts, complex structure, complex operation, and cost is higher.
Therefore, desirable to provide a kind of end cover sealing structure being different from the novel cap-type optical cable connection box of above-mentioned existing scheme.
Utility model content
The utility model has been made for the problems referred to above existed in existing cap-type optical cable connection box.On the one hand, the utility model provides a kind of mechanical sealing end cover of cap-type optical cable connection box, and it comprises: end cap body, and described end cap body comprises retainer and multiple optical cable entry port; Optical cable sealed tube, described optical cable sealed tube is assembled in the optical cable entry port of described end cap body; With optical cable fixation kit, described optical cable fixation kit is arranged on the retainer of described end cap body; Wherein optical cable can enter in described cap-type optical cable connection box through described optical cable sealed tube, and is fixed on described optical cable fixation kit; And between described optical cable sealed tube and described end cap body and between described optical cable sealed tube and insertion optical cable wherein, form mechanical seal.
Preferably, described end cap body also comprises fiber management parts.
Preferably, described end cap body and described optical cable fixation kit are made of plastics, and described optical cable fixation kit is arranged on the retainer of described end cap body by interference fit.
Preferably, described optical cable sealed tube is rubber hose.
Preferably, described retainer is connected to the periphery of described end cap body by web.
Preferably, described retainer is by described end cap body vertically extending wall in cap-type optical cable connection box, is formed with slit in described wall.
Preferably, described optical cable fixation kit is formed with projection, described projection can be inserted in described slit with interference fit, is assembled on described retainer by described optical cable fixation kit thus.
Preferably, described optical cable fixation kit comprises base and upper cover, and described projection is arranged in the lower surface of described base; Described upper cover can be mechanically fixed to described base, to be fixed on therebetween by optical cable.Further preferably, also comprise can to form the side of interference fit protruding with the wall of described retainer for the base of described optical cable fixation kit.
Preferably, the base of described optical cable fixation kit comprises base portion and from the vertically extending arm of described base portion, is formed with boss at the free end away from described base portion of described arm, and the stiffener of optical cable can be mechanically anchored in described boss.Further preferably, each described optical cable fixation kit comprises two arms extended from described base portion.
Preferably, be formed with depressed part in described base and/or upper cover, described optical cable is fixed in described depressed part.
Preferably, described end cap body comprises even number optical cable entry port, and described optical cable entry port is one group with every 2 and is uniformly distributed circumferentially.Further preferably, the quantity of described optical cable entry port is 8.
Preferably, the wall of described retainer is set to corresponding with one group of optical cable entry port respectively.
Preferably, described optical cable sealed tube is at least less than the external diameter of described optical cable at the internal diameter at two ends place.
Preferably, described optical cable sealed tube is formed with the annular relief compared with other parts with larger external diameter and tapered protrusion portion, the spaced apart certain distance of described annular relief and tapered protrusion portion thus form ring-shaped groove betwixt, when described optical cable sealed tube is assembled in described optical cable entry port, described ring-shaped groove and described end cap body close contact are formed and seal.
Preferably, the width of described ring-shaped groove is less than the lid wall thickness of described end cap body, and described optical cable sealed tube is greater than the internal diameter of the lid through hole being arranged in described optical cable entry port at the external diameter at described ring-shaped groove place.
According to another aspect, the utility model provides a kind of cap-type optical cable connection box, and described cap-type optical cable connection box comprises mechanical sealing end cover as elucidated before.
According to mechanical sealing end cover of the present utility model, there is excellent sealing property.And, its also tool have the following advantages: the first, do not need to use heat-shrinkable tube, thus without the need to field power supply and burning things which may cause a fire disaster; The second, it has less part annex, install simple to operate, and cost is lower; 3rd, save operating space, can high-density installation be realized.
Accompanying drawing explanation
Fig. 1 illustrates the overall perspective view according to mechanical sealing end cover of the present utility model.
Fig. 2 A and 2B illustrates the skeleton view of the end cap body of mechanical sealing end cover, and wherein Fig. 2 A is the skeleton view of the end cap body observed inside cable splice closure, and Fig. 2 B is the skeleton view of the end cap body observed outside cable splice closure.
Fig. 3 A illustrates the skeleton view of the optical cable sealed tube used in mechanical sealing end cover.
Fig. 3 B shows optical cable with the form of cross-section and is assemblied in skeleton view in optical cable sealed tube.
Fig. 4 A and 4B illustrates that optical cable sealed tube is assembled to the skeleton view of the state in the optical cable entry port of end cap body, and wherein Fig. 4 A is the view observed inside cable splice closure, and Fig. 4 B is the view observed outside cable splice closure.
Fig. 5 A illustrates the skeleton view of the optical cable fixation kit in mechanical sealing end cover.
Fig. 5 B illustrates that optical cable is fixed on the skeleton view in optical cable fixation kit.
Fig. 6 illustrates that optical cable fixation kit is assembled to the skeleton view of the state on end cap body.
Embodiment
Below, by reference to the accompanying drawings, the mechanical sealing end cover for cap-type optical cable connection box according to the utility model preferred embodiment is described in detail.
Should be appreciated that, accompanying drawing only shows preferred embodiment of the present utility model with exemplary form.Here adopted directional terminology, as " on ", D score, "front", "rear", " interior ", " outward " etc., be only by reference to the accompanying drawings for illustration of object, and do not have any restricted.Parts shown in embodiment can be positioned to different orientations as required.
First, see Fig. 1, it illustrates the overall perspective view according to mechanical sealing end cover 10 of the present utility model.According to mechanical sealing end cover 10 of the present utility model for cap-type optical cable connection box, it mainly comprises three ingredients: end cap body 100, optical cable sealed tube 200 and optical cable fixation kit 300.The accompanying drawing combined below is described in detail by the concrete structure of each ingredient.The cylindrical shell of cap-type optical cable connection box is identical with existing cap-type optical cable connection box, and it is known to those skilled in the art, there is omitted herein its diagram and description.
Fig. 2 A and 2B shows the skeleton view of the end cap body 100 of mechanical sealing end cover 10.Wherein Fig. 2 A is the skeleton view of the end cap body 100 observed from inner side (being namely in use positioned at the side of cable splice closure); Fig. 2 B is from opposition side, the skeleton view of the end cap body 100 namely observed from outside.
End cap body 100 is foundations of mechanical sealing end cover 10, and it connects cylindrical shell and the optical cable 20 of cap-type optical cable connection box.As shown in Figure 2 A and 2B, end cap body 100 comprises roughly rounded lid 101, can have from the vertically extending tubular construction 102 of lid 101 at the periphery place of end cap body 100, thus coordinates with corresponding connector box cylindrical shell (not shown).End cap body 100 locks onto connector box cylindrical shell by lock uint known in the art.Should be appreciated that, as required, end cap body 100 also can have other shapes, as long as it can coordinate with corresponding connector box cylindrical shell.
As clearly visible from the outside of end cap body 100, in end cap body 100, be provided with multiple optical cable entry port 103.Each optical cable entry port 103 corresponding, forms the lid through hole that internal diameter is less than optical cable entry port 103 in the lid 101 of end cap body 100.Optical cable 20 enters into cable splice closure inside via described port.Preferably, the quantity of described optical cable entry port 103 is even number, and is one group with every 2 and is uniformly distributed circumferentially in described end cap body 100.In the embodiment shown, be the distribution form of 8 optical cable entry ports.But should be understood that the quantity of optical cable entry port 103 can be arranged as required, can be more, be such as 10,12 Also can be less, be such as 6,4 or 2.
In the inner side of end cap body 100, there is the retainer 104 for installing and keep optical cable fixation kit 300 (describing) below.According to preferred embodiment of the present utility model, every 2 of optical cable entry port 103 is one group, retainer 104 with often organize optical cable entry port 103 and arrange accordingly.In the embodiment shown, retainer 104 is the quadra form that the wall extended by the inner vertical from end cap body 100 surrounds, and each wall is corresponding with group optical cable entry port 103 of in lid 101.Each wall serving as retainer 104 is connected with the web 106 of tubular construction 102 by radial extension betwixt.As shown in the figure, the development length of retainer 104 is greater than web 106, and is formed with slit 1041 at the central part of each wall, for forming interference fit with the respective bump 3031 in optical cable fixation kit 300, with fixing and maintenance optical cable fixation kit 300.Alternatively, be also formed with the fiber management parts 105 for managing optical cable/optical fiber in retainer 104 inside, such as optical fiber appearance connects pallet.The development length of fiber management parts 105 is greater than retainer 104, coils thereon for redundancy or optical cable/optical fiber for subsequent use or stores.
According to preferred embodiment of the present utility model, end cap body 100 is formed by plastic material.But it is not limited thereto, other any applicable materials also can be adopted.Form the various piece of end cap body 100, that is, lid 101, tubular construction 102, optical cable entry port 103, retainer 104 and fiber management parts 105 can form; Also some of them part can be formed respectively, and then be assembled together by manner known in the art (such as bolt, welding, welding etc.).
Next, see Fig. 3 A and 3B.Fig. 3 A shows the skeleton view of the optical cable sealed tube 200 used in mechanical sealing end cover 10 of the present utility model; Fig. 3 B shows optical cable 20 with the form of cross-section and is assemblied in skeleton view in optical cable sealed tube 200.
Optical cable sealed tube 200 for providing sealing between optical cable 20 and mechanical sealing end cover 10.As shown in Figure 3A, optical cable sealed tube 200 is for having the tubular structure of first end 201 and the second end 202.Usually, optical cable sealed tube 200 is the flexible pipes be made up of rubber.The structural design of optical cable sealed tube 200 is the external diameter at least making the internal diameter at its first end 201 and the second end 202 place be less than optical cable 20, thus when optical cable 20 penetrates in optical cable sealed tube 200, at least form the hermetically-sealed construction of closely parcel optical cable 20 at first end 201 and the second end 202 place.In addition, such as near the position of first end 201 on optical cable sealed tube 200, the annular relief 203 with larger external diameter and the tapered protrusion portion 204 kept at a certain distance away with annular relief 203 is formed.Preferably, the external diameter in tapered protrusion portion 204 towards the direction convergent of the second end 202 so that optical cable sealed tube 200 is inserted in optical cable entry port 103.Gap-forming between annular relief 203 and tapered protrusion portion 204 groove 205 circumferentially.Preferably, the width of groove 205, namely the interval between annular relief 203 and tapered protrusion portion 204 substantially equals or is slightly less than the wall thickness of lid 101 in optical cable entry port 103, and optical cable sealed tube 200 substantially equals at the external diameter at groove 205 place or is slightly greater than the internal diameter of lid through hole in optical cable entry port 103.When optical cable sealed tube 200 is inserted in optical cable entry port 103, the groove 205 in optical cable sealed tube 200 engages with lid 101 position in optical cable entry port 103, is formed and seals closely.
The state that optical cable sealed tube 200 is assembled in the optical cable entry port 103 of end cap body 100 can see Fig. 4 A and 4B, and wherein Fig. 4 A shows the skeleton view when end cap body 100 being equipped with optical cable sealed tube 200 is observed from inner side; Fig. 4 B shows the skeleton view when end cap body 100 being equipped with optical cable sealed tube 200 is observed from outside.Adopt the optical cable sealed tube 200 of said structure, can guarantee to stablize, good sealing property, even if gas leakage also can not be caused from inner or outside hyperbar.In addition, being configured in patented claim WO2014139102 of this optical cable sealed tube is described later in detail.
Next, see Fig. 5 A, it illustrates the skeleton view of the optical cable fixation kit 300 in mechanical sealing end cover 10 of the present utility model.Optical cable fixation kit 300 is for the fixing optical cable 20 inserted by optical cable entry port 203.As shown in Figure 5A, optical cable fixation kit 300 comprises base 301 and upper cover 302.Base 301 is formed by base portion 303 with from vertically extending two arms 304 of base portion 303.Upper cover 302 is fixed to the base portion 303 of base 301 by mechanical means known in the art (such as screw, buckle, pin etc.).Such as, in the preferred embodiment shown in Fig. 5 A, realize fixing between upper cover 302 and base portion 303 by the threaded hole 306 in screw 305 and base portion 303.The position of aliging with arm 304 in the upper surface of base portion 303 can be formed with depressed part 3011, position corresponding with depressed part 3011 in the lower surface of upper cover 302 can be formed with depressed part 3012, thus when upper cover 302 is fixed to base portion 303, between upper cover 302 and base portion 303, enclosed the passage being formed and pass for optical cable 20 by depressed part 3011 and 3012.Preferably, the cross section of passage is circular or oval.In addition preferably, in the depressed part 3011 of base portion 303 and/or the depressed part 3012 of upper cover 302, texture or swelling structure 3013 is formed with, to be conducive to fixedly securing of optical cable 20.The boss 307 upwards extended is formed at the free end away from base portion 303 of arm 304.In boss 307, form porose 308 along the bearing of trend of arm 304, insert for the stiffener 21 for optical cable 20.Further, in boss 307, being formed with threaded hole 309 perpendicular to the bearing of trend in hole 308, by being screwed in threaded hole 309 by screw 305, fixing the cable strength members 21 be inserted in hole 308.
Fig. 5 B shows optical cable 20 and is fixed on skeleton view in optical cable fixation kit 300.Optical cable 20 is placed on the base 301 of optical cable fixation kit 300, optical cable 20 is made to be arranged in the depressed part 3011 of the base portion 303 of base 301, and extend along the arm 304 of base 301, and the stiffener 21 of optical cable 20 is inserted into the hole 308 of the boss 307 being arranged in arm 304 end.Upper cover 302 is placed in and is placed with on the base 301 of optical cable 20, and utilize screw 305 that upper cover 302 is fixed to base 301.At the threaded hole 309 place screw 305 of boss 307, the stiffener 21 of optical cable 20 is fixed therein.By optical cable fixation kit 300, fixedly securing of optical cable 20 can be realized, prevent optical cable from pulling out and rotate.
At the central part of the lower surface of the base portion 303 of the base 301 of optical cable fixation kit 300, be formed with downward projection 3031 along the direction parallel with the bearing of trend of arm 304.By this projection 3031 being inserted in the slit 1041 formed in the retainer 104 of end cap body 100 noted earlier, by means of the interference fit between protruding 3031 and slit 1041, optical cable fixation kit 300 is assembled on the retainer 104 of end cap body 100.In addition preferably, except being formed in the projection 3031 at the central part place of the lower surface of base portion 303, to be formed downwards near the position of both sides at the lower surface of base portion 303 and the side projection extended to the reverse direction of arm 304, thus when optical cable fixation kit 300 is assembled to the retainer 104 of end cap body 100, described side projection is inserted within the quadra of retainer 104, interference fit is formed, to install securely further and to keep optical cable fixation kit 300 to the corresponding wall of retainer 104.
In the embodiment shown in Fig. 5 A and 5B, each optical cable fixation kit 300 comprises two upper covers 302, the halfbody of the corresponding base 301 of each upper cover 302.But alternatively, also two upper covers can be formed as one, namely merge into a upper cover.
According to preferred embodiment of the present utility model, except screw 305 adopts except metal material, each several part of optical cable fixation kit 300 is formed by plastics.But it is not limited thereto, any material that other is applicable to also can be adopted to manufacture optical cable fixation kit 300.
Fig. 6 shows skeleton view optical cable fixation kit 300 being assembled to the state on end cap body 100.Each optical cable fixation kit 300 is installed to by foregoing mode on a wall of the retainer 104 of end cap body 100, and corresponding one group of optical cable entry port 103, for the fixing optical cable 20 inserted by optical cable entry port 103.
According to mechanical sealing end cover of the present utility model, do not need to use heat-shrinkable tube, thus without the need to field power supply or burning things which may cause a fire disaster; And it does not have a lot of part annexes, installs simple to operate; And save operating space, can high-density installation be realized.In addition, mechanical sealing end cover of the present utility model has excellent sealing property, and manufacturing cost is lower.
Above in conjunction with embodiment of the present utility model and accompanying drawing, the technical solution of the utility model is described in detail, has understood the technical solution of the utility model better to make those skilled in the art.Should be appreciated that, embodiment that is shown and that describe is only exemplary instead of restrictive here.Those skilled in the art can carry out any feasible modifications and variations on this basis, and these all drop within scope of the present utility model.
Claims (19)
1. a mechanical sealing end cover for cap-type optical cable connection box, is characterized in that, described mechanical sealing end cover comprises:
End cap body, described end cap body comprises retainer and multiple optical cable entry port;
Optical cable sealed tube, described optical cable sealed tube is assembled in the optical cable entry port of described end cap body; With
Optical cable fixation kit, described optical cable fixation kit is arranged on the retainer of described end cap body;
Wherein optical cable can enter in described cap-type optical cable connection box through described optical cable sealed tube, and is fixed on described optical cable fixation kit; And between described optical cable sealed tube and described end cap body and between described optical cable sealed tube and insertion optical cable wherein, form mechanical seal.
2. mechanical sealing end cover as claimed in claim 1, it is characterized in that, described end cap body also comprises fiber management parts.
3. mechanical sealing end cover as claimed in claim 1 or 2, it is characterized in that, described end cap body and described optical cable fixation kit are made of plastics, and described optical cable fixation kit is arranged on the retainer of described end cap body by interference fit.
4. mechanical sealing end cover as claimed in claim 1 or 2, it is characterized in that, described optical cable sealed tube is rubber hose.
5. mechanical sealing end cover as claimed in claim 1 or 2, it is characterized in that, described retainer is by described end cap body vertically extending wall in cap-type optical cable connection box, is formed with slit in described wall.
6. mechanical sealing end cover as claimed in claim 5, it is characterized in that, described retainer is connected to the periphery of described end cap body by web.
7. mechanical sealing end cover as claimed in claim 5, it is characterized in that, described optical cable fixation kit is formed with projection, described projection can be inserted in described slit with interference fit, is assembled on described retainer by described optical cable fixation kit thus.
8. mechanical sealing end cover as claimed in claim 7, it is characterized in that, described optical cable fixation kit comprises base and upper cover, and described projection is arranged in the lower surface of described base; Described upper cover can be mechanically fixed to described base, to be fixed on therebetween by optical cable.
9. mechanical sealing end cover as claimed in claim 8, it is characterized in that, the base of described optical cable fixation kit comprises base portion and from the vertically extending arm of described base portion, is formed with boss at the free end away from described base portion of described arm, and the stiffener of optical cable can be mechanically anchored in described boss.
10. mechanical sealing end cover as claimed in claim 9, it is characterized in that, each described optical cable fixation kit comprises two arms extended from described base portion.
11. mechanical sealing end covers as claimed in claim 8, it is characterized in that, be formed with depressed part in described base and/or upper cover, described optical cable is fixed in described depressed part.
12. mechanical sealing end covers as claimed in claim 8, is characterized in that, the base of described optical cable fixation kit also comprises can to form the side of interference fit protruding with the wall of described retainer.
13. mechanical sealing end covers as claimed in claim 1 or 2, it is characterized in that, described end cap body comprises even number optical cable entry port, and described optical cable entry port is one group with every 2 and is uniformly distributed circumferentially.
14. mechanical sealing end covers as claimed in claim 13, is characterized in that, the quantity of described optical cable entry port is 8.
15. mechanical sealing end covers as claimed in claim 13, is characterized in that, the wall of described retainer is set to corresponding with one group of optical cable entry port respectively.
16. mechanical sealing end covers as claimed in claim 1 or 2, it is characterized in that, described optical cable sealed tube is at least less than the external diameter of described optical cable at the internal diameter at two ends place.
17. mechanical sealing end covers as claimed in claim 1 or 2, it is characterized in that, described optical cable sealed tube is formed with the annular relief compared with other parts with larger external diameter and tapered protrusion portion, the spaced apart certain distance of described annular relief and tapered protrusion portion thus form ring-shaped groove betwixt, when described optical cable sealed tube is assembled in described optical cable entry port, described ring-shaped groove and described end cap body close contact are formed and seal.
18. mechanical sealing end covers as claimed in claim 17, it is characterized in that, the width of described ring-shaped groove is less than the lid wall thickness of described end cap body, and described optical cable sealed tube is greater than the internal diameter of the lid through hole being arranged in described optical cable entry port at the external diameter at described ring-shaped groove place.
19. 1 kinds of cap-type optical cable connection boxes, is characterized in that, described cap-type optical cable connection box comprises the mechanical sealing end cover according to any one of claim 1-18.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520802230.XU CN205139432U (en) | 2015-10-16 | 2015-10-16 | Mechanical seal end cover of hat type fiber cable joint box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520802230.XU CN205139432U (en) | 2015-10-16 | 2015-10-16 | Mechanical seal end cover of hat type fiber cable joint box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205139432U true CN205139432U (en) | 2016-04-06 |
Family
ID=55625210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520802230.XU Expired - Fee Related CN205139432U (en) | 2015-10-16 | 2015-10-16 | Mechanical seal end cover of hat type fiber cable joint box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205139432U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965773A (en) * | 2020-08-26 | 2020-11-20 | 烽火通信科技股份有限公司 | Packaging device for nut sealing joint box and nut sealing joint box assembly |
-
2015
- 2015-10-16 CN CN201520802230.XU patent/CN205139432U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965773A (en) * | 2020-08-26 | 2020-11-20 | 烽火通信科技股份有限公司 | Packaging device for nut sealing joint box and nut sealing joint box assembly |
| CN111965773B (en) * | 2020-08-26 | 2023-03-14 | 烽火通信科技股份有限公司 | Packaging device for nut sealing joint box and nut sealing joint box assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20201016 |