CN217543470U - Optical fiber micro-tube connector - Google Patents

Abstract

An optical fiber micro-tube connector comprises a tubular shell, a rubber ring, an integrated connector and a tube head, wherein the tubular shell comprises: the device is provided with an axial inner cavity in a hollow structure, and a limiting boss is formed on the inner peripheral wall of the axial inner cavity; the described a rubber ring: the pipe-shaped shell is placed in the position of an opening at one end of the pipe-shaped shell, so that the pipe-shaped shell is limited on the limiting boss; the integrated connector comprises: the rubber ring is of a hollow structure, is sleeved on the tubular shell, and has one end abutting against the rubber ring; the pipe head is as follows: the rubber ring is arranged on the tubular shell and is far away from one end of the integrated connector, and the rubber ring is arranged on the integrated connector and is far away from one end of the rubber ring. The utility model discloses an adopt the structure cooperation of integral type connector cover in the tubulose casing for the gas tightness of microtube joint in the use is better, can effectively guarantee the waterproof dustproof performance after the pre-buried installation.

Description

Optical fiber micro-tube joint

Technical Field

The utility model relates to an optic fibre microtube connects especially relates to a microtube connects of using of communication system field optic fibre.

Background

In the existing market, the optical fiber micro-tube connector generally has the following defects due to the structural defects: 1. the inner stress is concentrated due to the uneven wall thickness of the joint body, the cold die time is long, and the wire is easy to draw when the die is removed; 2. the outer surface of the joint body is smooth, so that the joint is easy to release hands when construction embedding is carried out, and unnecessary troubles are caused to installation; 3. the air tightness is poor; 4. the axial both ends that connect the body do not have spacing part, and at the pre-buried in-process of construction, the tube head mistake that forms to connect the axial both ends of body easily bumps the extrusion, and the microtubule has broken away from the joint when causing the later stage to blow the cable and lay the optic fibre line.

Based on the above-mentioned shortcomings in the prior art, the present company has further devised and improved optical fiber micro-tube connectors.

Disclosure of Invention

An object of the utility model is to provide a simple structure, the gas tightness is good, use more convenient optical fiber micro tube joint.

In order to achieve the above object, the present invention provides an optical fiber micro-tube connector, including a tubular housing: the device comprises an axial inner cavity with a hollow structure, wherein two ends of the axial inner cavity in the axial direction are of an open structure, and a limiting boss is formed on the inner peripheral wall of the axial inner cavity;

a rubber ring: the axial inner cavity is placed through one end of the tubular shell, and the axial inner cavity is limited on the limiting boss;

integral type connector: the rubber ring is of a hollow structure, is sleeved on the tubular shell, is specifically inserted into the axial inner cavity, and has one end abutting against the rubber ring;

tube head: the rubber ring is arranged on the tubular shell and is far away from one end of the integrated connector, and the rubber ring is arranged on the integrated connector and is far away from one end of the rubber ring.

Through the improvement of the above technical solution to the prior art, it is obvious to those skilled in the art that the present invention only adopts the plug-in structure of two kinds of parts, i.e. the tubular casing and the integrated connector, especially after some intermediate members inserted in the tubular casing are directly set into the integrated connector, the excellent air tightness effect is obvious.

As the utility model discloses a further setting, form a plurality of anti-skidding grooves on the outer periphery of tubulose casing, particularly, anti-skidding groove is a plurality of axial distributions, follows the arc structure that the circumferential direction of the outer periphery of tubulose casing was seted up, for the description of follow-up technical characteristics of being convenient for, anti-skidding groove is in form two pairs of anti-skidding groups that correspond each other on the outer periphery of tubulose casing (promptly each pair anti-skidding group by a plurality of axial distributions, constitute with the arc structure anti-skidding groove of one side on the outer periphery of tubulose casing), on the outer periphery of tubulose casing, be located position between two pairs of anti-skidding groups forms anti-skidding plane. The utility model discloses in, through anti-skidding groove and the planar setting of antiskid, greatly made things convenient for constructor to carry out the implementation of pre-buried work to the little coupling of optic fibre, effectively promoted anti-skidding effect.

As a further setting of the utility model, on the inner circumferential surface of axial inner chamber, with the corresponding position of antiskid group forms radial convex internal perisporium, on the internal perisporium, with the corresponding position of antiskid plane forms the blowpit that a plurality of axial were seted up. The inner circumferential wall and the discharge chute are arranged on the tubular housing, and the aim of the discharge chute is to reduce the wall thickness of the tubular housing. The utility model discloses in, through the setting of above-mentioned internal perisporium and blowpit, but the puzzlement that the microtubule joint among the at utmost among the reduction prior art caused because of the wall thickness nonconformity: namely, when the wall thickness of the tubular shell is inconsistent, in the injection molding process, the cold die time is long, wire drawing is easy, the fraction defective of parts is increased, and in addition, the defect of inconsistent wall thickness is also embodied in that the internal stress cannot be released, so that the hidden danger that the tubular shell is easy to crack or even break is caused.

As a further arrangement of the present invention, the tube head has an annular clamping seat clamped on the tubular housing and an annular cuff forming a clamping connection with the annular clamping seat in the axial direction, and an axial limiting ring is arranged between the annular cuff and the tubular housing; the utility model discloses in, the setting of axial spacing ring can effectively avoid constructor to establish the in-process or to the produced axial extrusion of the pre-buried in-process of this microtube joint, and then the phenomenon that makes the tube head shelling carrying out inserting of microtube taking place.

More specifically, form screw thread portion on the outer periphery of tubulose casing, on the integral type connector, be close to in the axial direction the position of screw thread portion forms the radial outside butt ring that extends, threaded connection has the locking lid on the screw thread portion, on the locking lid, with the corresponding position of butt ring forms the crimping ring, the crimping ring with the butt ring is in form the axial butt when the locking lid is screwed.

Through the improvement of the technical proposal on the prior art, the optical fiber micro-tube joint of the utility model has good air tightness due to the adoption of the structure of the integrated connector; meanwhile, the arrangement of the anti-skid grooves and the anti-skid planes facilitates the process of inserting the micro-pipe into the connector body by construction personnel, and the anti-skid effect is good; in addition, the discharge chute and the inner peripheral wall are arranged, so that the problems of internal stress concentration, long cold die time, easiness in wire drawing and the like caused by uneven wall thickness of the tubular shell are greatly relieved, and the finished product yield of the tubular shell is higher; and finally, an axial limiting ring is arranged between the annular sleeve opening of the tube head and the tubular shell, so that the tube head can be effectively prevented from being separated from the opening positions at the two axial ends of the tubular shell due to extrusion.

Drawings

FIG. 1 is a schematic perspective view of a fiber optic micro-tube joint according to the present invention;

FIG. 2 is an exploded schematic view of FIG. 1;

FIG. 3 is a cross-sectional view of a fiber optic micro-tube joint according to the present invention;

FIG. 4 is a perspective view of the tubular housing of the present invention;

fig. 5 is a schematic perspective view of another optical fiber micro-tube connector according to the present invention.

Detailed Description

Example 1: fig. 1-4 are schematic diagrams of optical fiber micro-tube joint structures of embodiment 1, in this embodiment, an optical fiber micro-tube joint is used, and fig. 1 is combined with fig. 2 to show that, in this embodiment, the optical fiber micro-tube joint includes

Tubular housing 1: the structure comprises an axial inner cavity 10 with a hollow structure, wherein two ends of the axial inner cavity 10 in the axial direction are in an open structure, and a limiting boss 11 is formed on the inner peripheral wall of the axial inner cavity 10, and as can be seen from the figure 3, the limiting boss 11 is arranged at the middle position of the axial inner cavity 10;

and (3) rubber ring 2: the axial inner cavity 10 is placed through one end of the tubular shell 1 and is limited on the limiting boss 11;

the integrated connector 3: the rubber ring is of a hollow structure and is inserted into the tubular shell 1, specifically, the axial inner cavity 10, one end of the rubber ring is abutted against the rubber ring 2, and the rubber ring 2 has the capability of deforming due to extrusion, particularly, when the end face of one end of the rubber ring 2 is abutted against the limiting boss and the end face of the other end of the rubber ring 2 is extruded by the integrated connecting body, the rubber ring is deformed in the radial direction, particularly, the central hole 20 of the rubber ring is reduced, and the performance of tightly locking a micro tube inserted into the joint is realized;

a pipe head 4: which are respectively arranged on the tubular shell 1 and are distant from one end of the integrated connector 3, and are arranged on the integrated connector 3 and are distant from one end of the rubber ring 2.

In this embodiment, the optical fiber micro-tube connector directly adopts a plug-in structure of two parts, i.e. the tubular housing 1 and the integrated connector 3, and particularly, after some intermediate members inserted in the tubular housing 1 are directly arranged into the integrated connector 3, the effect of excellent air tightness is obvious.

In this embodiment, as further shown in fig. 4, a plurality of anti-slip grooves 120 are formed on the outer circumferential surface of the tubular housing 1, specifically, the anti-slip grooves 120 are a plurality of arc-shaped structures which are axially distributed and are formed along the circumferential direction of the outer circumferential surface of the tubular housing 1, for the convenience of description of subsequent technical features, the anti-slip grooves 120 form two pairs of anti-slip groups 12 on the outer circumferential surface of the tubular housing 1, which correspond to each other (that is, each pair of anti-slip groups 12 is composed of a plurality of arc-shaped anti-slip grooves 120 which are axially distributed and are on the same side on the outer circumferential surface of the tubular housing 1), and an anti-slip plane 130 is formed on the outer circumferential surface of the tubular housing 1 and between the two pairs of anti-slip groups 12. In this embodiment, through the setting of anti-skidding groove 120 and anti-skidding plane 130, greatly made things convenient for constructor to carry out the implementation of pre-buried work to the little coupling of optic fibre, effectively promoted anti-skidding effect.

In this embodiment, an inner circumferential wall 14 protruding radially is formed on an inner circumferential surface of the axial cavity 10 at a position corresponding to the anti-slip group 12, and a plurality of discharge slots 140 opened axially are formed on the inner circumferential wall 14 at a position corresponding to the anti-slip plane 130. The inner circumferential wall 14 and the discharge chute 140 are arranged on the tubular housing 1, so that the wall thickness of the tubular housing 1 is reduced, and further, the trouble of the micro-pipe joint in the prior art caused by the inconsistent wall thickness can be reduced to the greatest extent through the arrangement of the inner circumferential wall 14 and the discharge chute 140: that is, when the wall thickness of the tubular housing 1 is inconsistent, in the injection molding process, the cold die time is long, and wire drawing is easy to occur, which results in the increase of the fraction defective of parts, and in addition, the defect of inconsistent wall thickness is also reflected in that the internal stress cannot be released, which results in the hidden trouble that the tubular housing 1 is easy to crack or even break.

Further, as shown in fig. 2, the tube head 4 has an annular clamping seat 40 clamped on the tubular housing 1, and an annular socket 41 clamped with the annular clamping seat 40 in the axial direction, and an axial limiting ring 42 is installed between the annular socket 41 and the tubular housing 1; in this embodiment, the arrangement of the axial limiting ring 42 can effectively avoid the phenomena that the connected microtubes are unshelled due to axial extrusion generated in the process of inserting the microtubes or the process of embedding the microtube joints by constructors.

More specifically, form screw thread portion 15 on the outer periphery of tubulose casing 1, on the integral type connector 3, be close to in the axial direction the position of screw thread portion 15 forms radial outside extension's butt ring 30, threaded connection has locking lid 5 on screw thread portion 15, locking lid 5 on, with the corresponding position of butt ring 30 forms crimp ring 50, crimp ring 50 with butt ring 30 is in form the axial butt when locking lid 5 screws, and when the staff carries out the locking formula rotation to the locking lid, crimp ring 50 is right butt ring 30 forms the axial extrusion force, and this axial extrusion force transmits to on the rubber ring 2, impel the centre bore 20 of rubber ring 2 to warp the undergauge, realize with the effect of laying the optic fibre line close fit in this joint.

As is apparent to those skilled in the art from fig. 2, the optical fiber micro-tube connector of the present embodiment has some additional parts not described, such as the arrangement of the circlip 6, the compression spring 7 and the sealing ring 8 in the connector body shown in fig. 2, which is a conventional structure design and is not described in the present embodiment.

Example 2: the optical fiber micro-tube joint of embodiment 2 shown in fig. 5 mainly differs from embodiment 1 in that: fig. 5 shows that the tubular housing is further provided with an anti-slip deep groove 121 in the axial direction of the anti-slip groove 120, so that the difference of the technical characteristics is obvious from a comparison between fig. 1 and fig. 5.

The basic principles and main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and the description are only for illustrating the principle of the present invention, and there are various changes and modifications of the present invention, which are all introduced by the spirit of the technical solution of the present invention, and fall into the scope of the claims of the present invention. The scope of the invention is defined by the appended claims, the description, the drawings attached to the description and their equivalents.

Claims (8)

1. An optical fiber micro-tube connector, comprising: comprises that

A tubular housing: the device is provided with an axial inner cavity in a hollow structure, and a limiting boss is formed on the inner peripheral wall of the axial inner cavity;

a rubber ring: is arranged on the limit boss;

integral type connector: the rubber ring is of a hollow structure and is inserted into the tubular shell, and one end of the rubber ring is abutted with the rubber ring;

tube head: the rubber ring is arranged on the tubular shell and is far away from one end of the integrated connector, and the rubber ring is arranged on the integrated connector and is far away from one end of the rubber ring.

2. The optical fiber micro-tube connector as claimed in claim 1, wherein: and a plurality of anti-skidding grooves are formed on the outer circumferential surface of the tubular shell.

3. An optical fiber micro-tube connector according to claim 2, wherein: the anti-slip grooves are of arc structures which are axially distributed and are arranged along the circumferential direction of the outer circumferential surface of the tubular shell.

4. An optical fiber micro-tube connector according to claim 3, wherein: the anti-slip grooves form two pairs of anti-slip groups corresponding to each other on the outer circumferential surface of the tubular housing, and an anti-slip plane is formed on the outer circumferential surface of the tubular shell and positioned between the two pairs of anti-slip groups.

5. The optical fiber micro-tube connector as claimed in claim 4, wherein: and the inner circumferential surface of the axial inner cavity and the position corresponding to the anti-slip group form a radially convex inner circumferential wall.

6. An optical fiber micro-tube connector according to claim 5, wherein: and a plurality of axially-arranged discharge chutes are formed in the positions, corresponding to the anti-skid planes, on the inner peripheral wall.

7. An optical fibre micro-tube connector according to any one of claims 1 to 6, wherein: the tube head is provided with an annular clamping seat clamped on the tubular shell and an annular sleeve opening clamped with the annular clamping seat in the axial direction, and an axial limiting ring is arranged between the annular sleeve opening and the tubular shell.

8. An optical fibre micro-tube connector as claimed in any one of claims 1 to 6, wherein: form screw thread portion on the outer periphery of tubulose casing, on the integral type connector, be close to in the axial direction the position of screw thread portion forms the radial outside butt ring that extends, threaded connection has the locking lid on the screw thread portion, on the locking lid, with the corresponding position of butt ring forms the crimping ring, the crimping ring with the butt ring is in form the axial butt when the locking lid is screwed.

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