CN218647186U - Sealed optical cable connector - Google Patents

Abstract

The utility model relates to a connector sealing technique field to a sealed optical cable connector is disclosed, including the connector housing, the one end of connector housing is provided with the bayonet joint, the lateral wall of connector housing is fixed with the closing plate, the closing plate be close to the terminal surface of bayonet joint with the afterbody of bayonet joint flushes, center on the closing plate the annular seal groove has been seted up to the bayonet joint, be provided with the elastic seal circle in the annular seal groove, the elastic seal circle is greater than along self axial length the annular seal groove is along self axial degree of depth. The sealing performance of the connection part of the optical cable connector and the equipment port is improved, and external water is prevented from entering the equipment and the optical cable connector through the gap of the connection part, so that the normal use of the optical cable connector and the connection equipment is not influenced.

Description

Sealed optical cable connector

Technical Field

The utility model relates to a connector sealing technique field specifically is a sealed optical cable connector.

Background

With the continuous development of optical fiber communication technology, especially 5G communication, a large number of communication products are used outdoors, and outdoor optical fiber connectors are often applied. The outdoor optical fiber connector is required to provide higher requirements on the aspects of water resistance, dust resistance, high and low temperature resistance, radiation resistance and the like aiming at the outdoor complex and severe natural environment. The existing optical cable connector considers the sealing performance between the connector shells, but ignores the sealing performance of the connection part between the optical cable connector and the equipment port, so that a gap is formed between the end face of the equipment port of the optical cable connector and the plugging end of the optical cable connector after the optical cable connector is connected with equipment, water in the external environment is easy to immerse into the optical cable connector and the equipment connected with the optical cable connector through the gap, and the normal use of the optical cable connector and the connecting equipment is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a sealed optical cable connector, improved the sealing performance of optical cable connector and equipment port junction, prevent that external water from immerging in equipment and optical cable connector through the clearance of junction to do not influence the normal use of optical cable connector and connecting device.

The purpose of the utility model is realized through the following technical scheme: the utility model provides a sealed optical cable connector, includes the connector housing, the one end of connector housing is provided with the bayonet joint, the lateral wall of connector housing is fixed with the closing plate, the closing plate be close to the terminal surface of bayonet joint with the afterbody of bayonet joint flushes, the closing plate is gone up and is seted up around the bayonet joint annular seal groove, be provided with the elastic seal circle in the annular seal groove, the elastic seal circle is greater than along self axial length annular seal groove along self axial degree of depth.

The technical scheme has the effects that the plug connector of the optical cable connector is plugged into the port of the connecting equipment, because the length of the elastic sealing ring along the self axial direction is greater than the depth of the annular sealing groove along the self axial direction, part of the elastic sealing ring is exposed out of the annular sealing groove, and the elastic sealing ring is propped against between the equipment panel and the sealing plate, so that the elastic sealing ring is gradually extruded to deform in the plugging process, and then two ends of the elastic sealing ring are respectively propped against the sealing plate and the equipment panel to form a high-strength sealing surface, so that the sealing performance of the joint of the optical cable connector and the equipment port is improved, and external water is prevented from being immersed into the equipment and the optical cable connector through the gap of the joint, and the normal use of the optical cable connector and the connecting equipment is not influenced.

Further, the elastic sealing ring comprises a first annular part, a second annular part and a third annular part which are sequentially connected and arranged, the outer diameter of the third annular part and the outer diameter of the first annular part are smaller than the outer diameter of the second annular part, and the second annular part is matched in the annular sealing groove.

Furthermore, an annular groove is formed in the sealing plate around the plug connector, the outer diameter of the annular groove is smaller than the inner diameter of the annular sealing groove, and a water absorbing ring is arranged in the annular groove.

Furthermore, the water absorption ring is made of water absorption cotton or sponge, and the length of the water absorption ring in the axial direction of the water absorption ring is larger than the depth of the annular groove in the axial direction of the annular groove.

Further, the connector casing includes grafting casing, interior casing and shell body, the bayonet joint sets up on the grafting casing, the grafting casing is kept away from the one end of bayonet joint is fixed with the screw thread post, screw thread post cavity sets up, the one end of shell body is equipped with the internal thread, shell body threaded connection is in on the screw thread post, interior casing setting is in the shell body.

Furthermore, an annular first sealing groove is formed in the plug-in shell around the threaded column, an annular second sealing groove is formed in one end, close to the plug-in shell, of the outer shell, the second sealing groove and the first sealing groove are concentrically arranged, a first sealing ring is arranged between the plug-in shell and the outer shell, and two ends of the first sealing ring are respectively matched in the first sealing groove and the second sealing groove.

Further, the length of the first sealing ring in the axial direction of the first sealing ring is larger than the sum of the depths of the first sealing groove and the second sealing groove.

Furthermore, the inner shell is close to an annular third seal groove is formed in one end of the plug-in shell, a second seal ring is arranged in the third seal groove, the length of the second seal ring along the self axial direction is larger than the depth of the third seal groove, a butt ring is fixed in the outer shell, one end of the inner shell is in butt joint on the butt joint ring, and the other end of the inner shell is abutted against the plug-in shell.

Furthermore, the shell body is far away from one end of the plug-in connection shell body is in threaded connection with the tail shell body, a glue injection cavity is formed in the tail shell body, a glue injection hole communicated with the glue injection cavity is formed in the tail shell body, and sealant is filled in the glue injection cavity through the glue injection hole.

The beneficial effects of the utility model are that:

1. the plug connector of the optical cable connector is plugged into the port of the connecting equipment, because the length of the elastic sealing ring along the self axial direction is greater than the depth of the annular sealing groove along the self axial direction, the elastic sealing ring is partially exposed outside the annular sealing groove, and the elastic sealing ring is propped between the equipment panel and the sealing plate, so that the elastic sealing ring is gradually extruded to deform in the plugging process, and then the two ends of the elastic sealing ring are respectively propped against the sealing plate and the equipment panel to form a high-strength sealing surface, so that the sealing performance of the joint of the optical cable connector and the equipment port is improved, and external water is prevented from being immersed into the equipment and the optical cable connector through the gap of the joint, thereby not affecting the normal use of the optical cable connector and the connecting equipment.

The water absorption ring is arranged between the elastic sealing ring and the plug connector to form a second layer of seal, and the length of the water absorption ring along the self axial direction is larger than the depth of the annular groove along the self axial direction, so that the water absorption ring is deformed to abut against a panel of the connecting equipment, when the sealing performance of the elastic sealing ring is reduced or trace water is immersed, water is absorbed by the water absorption ring, further, rainwater is prevented from immersing into the connector and the equipment through a connecting gap between the connector and the equipment, and the sealing performance of the optical cable connector is further enhanced.

Drawings

Fig. 1 is a schematic diagram illustrating an internal structure of a sealed optical cable connector according to the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the present invention;

fig. 3 is a schematic view of an external structure of a sealed optical cable connector according to the present invention;

fig. 4 is an exploded view of a sealed optical cable connector according to the present invention;

FIG. 5 is an enlarged view of the point B in FIG. 1 according to the present invention;

in the figure, 1-connector shell, 2-plug connector, 3-sealing plate, 4-annular sealing groove, 5-elastic sealing ring, 6-first annular part, 7-second annular part, 8-third annular part, 9-annular groove, 10-water absorbing ring, 11-plug shell, 12-inner shell, 13-outer shell, 14-threaded column, 15-first sealing groove, 16-second sealing groove, 17-first sealing ring, 18-third sealing groove, 19-second sealing ring, 20-abutting ring, 21-tail shell, 22-glue injection cavity and 23-glue injection hole.

Detailed Description

The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.

As shown in fig. 1 to 5, a sealed optical cable connector comprises a connector housing 1, one end of the connector housing 1 is provided with a plug 2, the plug 2 is used for being plugged into a port of a device to complete the optical cable connection with the device, a sealing plate 3 is fixed on a side wall of the connector housing 1, an end face of the sealing plate 3 close to the plug 2 is flush with a tail portion of the plug 2, so that the arrangement of the sealing plate 3 does not affect the normal plugging of the plug 2, the sealing plate 3 is provided with an annular sealing groove 4 around the plug 2, an elastic sealing ring 5 is arranged in the annular sealing groove 4, the inner diameter of the elastic sealing ring 5 is larger than the plugging port of the device, and the plugging port is located in the elastic sealing ring 5 to be sealed, the length of the elastic sealing ring 5 along the self axial direction is larger than the depth of the annular sealing groove 4 along the self axial direction, the plug-in connector 2 of the optical cable connector is plugged into the port of the connecting equipment, because the length of the elastic sealing ring 5 along the self axial direction is greater than the depth of the annular sealing groove 4 along the self axial direction, part of the elastic sealing ring 5 is exposed out of the annular sealing groove 4, and the elastic sealing ring 5 is propped between the equipment panel and the sealing plate 3, so that the elastic sealing ring 5 is gradually extruded to deform in the plugging process, and then two ends of the elastic sealing ring 5 are respectively propped against the sealing plate 3 and the equipment panel to form a high-strength sealing surface, so that the sealing performance of the connection between the optical cable connector and the equipment port is improved, external water is prevented from being immersed into the equipment and the optical cable connector through the gap of the connection, and the normal use of the optical cable connector and the connecting equipment is not influenced. During specific implementation, the elastic strength of the elastic sealing ring 5 is smaller than the connection strength of the plug-in connector 2, so that the plug-in connector 2 cannot fall off under the reaction force of the elastic sealing ring 5, meanwhile, under the connection force between the plug-in connector 2 and equipment, the elastic sealing ring 5 is extruded into the annular sealing groove 4, the normal connection of the optical cable connector is not affected by the elastic sealing ring 5, meanwhile, under the reaction force of the elastic sealing ring 5, the elastic sealing ring 5 is tightly attached to a panel of the equipment to form a high-strength sealing surface, and the sealing performance of the joint of the optical cable connector and the equipment is improved. Preferably, as shown in fig. 2, the elastic sealing ring 5 includes a first annular portion 6, a second annular portion 7 and a third annular portion 8, which are sequentially connected and disposed, an outer diameter of the third annular portion 8 and an outer diameter of the first annular portion 6 are both smaller than an outer diameter of the second annular portion 7, the second annular portion 7 is adapted in the annular sealing groove 4, when two ends of the elastic sealing ring 5 are respectively pressed against the equipment panel and the sealing plate 3, the first annular portion 6 and the second annular portion 8 at two ends of the elastic sealing ring 5 both press the second annular portion 7, because the outer diameter of the second annular portion 7 is larger than the outer diameters of the first annular portion 6 and the third annular portion 8, the second annular portion 7 is more easily deformed and is in interference fit with the annular sealing groove 4, a water inlet gap between the elastic sealing ring 5 and the annular sealing groove 4 is eliminated, and the sealing performance between the elastic sealing ring 5 and the annular sealing groove 4 is improved.

Further, as shown in fig. 1, an annular groove 9 is formed in the sealing plate 3 around the plug 2, the outer diameter of the annular groove 9 is smaller than the inner diameter of the annular sealing groove 4, a water absorption ring 10 is arranged in the annular groove 9, the water absorption ring 10 is made of water absorption cotton or sponge, the length of the water absorption ring 10 in the self axial direction is larger than the depth of the annular groove 9 in the self axial direction, the water absorption ring 10 is arranged between the elastic sealing ring 5 and the plug 2 to form a second layer of seal, the length of the water absorption ring 10 in the self axial direction is larger than the depth of the annular groove 9 in the self axial direction, so that the water absorption ring 10 is deformed to abut against a panel of a connecting device, when the sealing performance of the elastic sealing ring 5 is reduced or when a small amount of water is immersed, water is absorbed by the water absorption ring 10, and rainwater is further prevented from entering the connector and the device through a connecting gap between the connector and the device, and the sealing performance of the optical cable connector is further improved. During concrete implementation, 9 clearance fits in ring 10 and the ring channel of absorbing water, make and absorb water and be connected for dismantling between ring 10 and the closing plate 3, use the removable optical cable connector of going down after a period and change ring 10 that absorbs water, guarantee that ring 10 that absorbs water has better water absorption performance, avoid absorbing water ring 10 to absorb water the condition that leads to the fact the dropping liquid too much simultaneously, because elastic seal ring 5's setting, make and have stronger sealing performance between connector and the equipment connection department, thereby make ring 10 that absorbs water have very long life, only need regularly to examine and repair ring 10 that absorbs water and change can.

Further, as shown in fig. 1 and 4, the connector housing 1 includes a plug housing 11, an inner housing 12, and an outer housing 13, the plug housing 2 is disposed on the plug housing 11, an optical cable connection end of the plug housing 2 is disposed at an end of the plug housing 11 close to the outer housing 13, a threaded post 14 is fixed at an end of the plug housing 11 away from the plug housing 2, the threaded post 14 is hollow, the threaded post 14 is provided with an external thread, one end of the outer housing 13 is provided with an internal thread, the outer housing 13 is screwed on the threaded post 14, the inner housing 12 is disposed in the outer housing 13, an annular first sealing groove 15 is disposed on the plug housing 11 around the threaded post 14, an annular second sealing groove 16 is disposed at an end of the outer housing 13 close to the plug housing 11, the second sealing groove 16 is concentric with the first sealing groove 15, a first sealing ring 17 is disposed between the plug housing 11 and the outer housing 13, two ends of the first sealing ring 17 are respectively fitted in the first sealing groove 15 and the second sealing groove 16, the first sealing groove 15 and the first sealing groove 13 are concentrically disposed with the outer housing 13, when the outer housing 13 is connected to the plug housing 13, two ends of the first sealing ring 17 are respectively, the first sealing ring 15 and the second sealing ring 17, the second sealing groove 16 are pressed tightly in the first sealing groove, and the sealing groove, the sealing ring 16, and the sealing ring 17, and the sealing ring 16, and the sealing ring 17 are gradually eliminated, and the sealing ring 16, and the sealing ring 13, and the sealing ring is pressed in the sealing ring 13.

Further, as shown in fig. 1 and 5, an annular third sealing groove 18 is formed in one end of the inner housing 12 close to the plug housing 11, a second sealing ring 19 is arranged in the third sealing groove 18, the length of the second sealing ring 19 in the axial direction of the second sealing ring is greater than the depth of the third sealing groove 18, a butting ring 20 is fixed in the outer housing 13, one end of the inner housing 12 is butted against the butting ring 20, the other end of the inner housing is butted against the plug housing 11, and the second sealing ring 19 is deformed and tightly attached to the surface of the plug housing 11 through the extrusion of the plug housing 11 and the butting ring 20, so that the sealing strength of the joint of the plug housing 11 and the inner housing 12 is improved; one end threaded connection afterbody casing 21 that grafting casing 11 was kept away from to shell body 13, be formed with injecting glue chamber 22 in the afterbody casing 21, set up on the afterbody casing 21 with the communicating injecting glue hole 23 in injecting glue chamber 22, fill sealed glue through injecting glue hole 23 to injecting glue chamber 22 intussuseption, because the afterbody of connector is often dragged, the intensity requirement of its connector afterbody is higher, therefore, this application adopts sealed glue to seal the clearance between afterbody casing 21 and the optical cable, on the one hand, the sealing strength of connector afterbody has been improved, on the other hand is together fixed with afterbody casing 21 with the optical cable, thereby make when dragging the connector, the junction of optical cable and bayonet joint 2 is not stressed, guarantee to drag can not cause droing of optical cable, guarantee that the connector can normal use.

To sum up, the optical cable connector is sealed in all directions, the sealing of the joint of the connector and equipment is considered, and meanwhile, the sealing mode is reasonably designed according to the specific conditions of different parts of the connector, so that the optical cable connector is more suitable for the actual use environment.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention; and those skilled in the art will appreciate that the benefits of the present invention are only to better benefit than the current embodiments of the prior art under certain circumstances, and not to the best use directly in the industry.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein and that the invention is not to be considered as limited to the disclosed embodiments, but is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (9)

1. The utility model provides a sealed optical cable connector, includes connector housing (1), the one end of connector housing (1) is provided with bayonet joint (2), its characterized in that, the lateral wall of connector housing (1) is fixed with closing plate (3), the terminal surface that closing plate (3) are close to bayonet joint (2) with the afterbody of bayonet joint (2) flushes, closing plate (3) go up around bayonet joint (2) have seted up annular seal groove (4), be provided with elastic seal circle (5) in annular seal groove (4), elastic seal circle (5) are greater than along self axial length annular seal groove (4) along self axial degree of depth.

2. Sealed optical cable connector according to claim 1, wherein said elastic sealing ring (5) comprises a first annular portion (6), a second annular portion (7) and a third annular portion (8) connected in sequence, the outer diameter of said third annular portion (8) and the outer diameter of said first annular portion (6) are smaller than the outer diameter of said second annular portion (7), and said second annular portion (7) is fitted in said annular sealing groove (4).

3. The sealed optical cable connector according to claim 1, wherein the sealing plate (3) has an annular groove (9) around the plug (2), the outer diameter of the annular groove (9) is smaller than the inner diameter of the annular sealing groove (4), and a water-absorbing ring (10) is disposed in the annular groove (9).

4. A sealed optical cable connector according to claim 3, wherein said water-absorbing ring (10) is made of water-absorbing cotton or sponge, and the length of said water-absorbing ring (10) along its own axial direction is greater than the depth of said annular groove (9) along its own axial direction.

5. The sealed optical cable connector according to claim 1, wherein the connector housing (1) includes a plug housing (11), an inner housing (12) and an outer housing (13), the plug connector (2) is disposed on the plug housing (11), a threaded post (14) is fixed to an end of the plug housing (11) away from the plug connector (2), the threaded post (14) is hollow, an inner thread is disposed at an end of the outer housing (13), the outer housing (13) is screwed on the threaded post (14), and the inner housing (12) is disposed in the outer housing (13).

6. The sealed optical cable connector according to claim 5, wherein an annular first sealing groove (15) is formed in the plug-in housing (11) around the threaded post (14), an annular second sealing groove (16) is formed in one end of the outer housing (13) close to the plug-in housing (11), the second sealing groove (16) is concentric with the first sealing groove (15), a first sealing ring (17) is disposed between the plug-in housing (11) and the outer housing (13), and two ends of the first sealing ring (17) are respectively fitted in the first sealing groove (15) and the second sealing groove (16).

7. A sealed optical cable connector according to claim 6, wherein the length of said first sealing ring (17) in its axial direction is greater than the sum of the depths of said first sealing groove (15) and said second sealing groove (16).

8. The sealed optical cable connector of claim 5, wherein an annular third sealing groove (18) is formed at one end of the inner housing (12) close to the plug housing (11), a second sealing ring (19) is disposed in the third sealing groove (18), a length of the second sealing ring (19) along an axial direction thereof is greater than a depth of the third sealing groove (18), a butting ring (20) is fixed in the outer housing (13), one end of the inner housing (12) butts against the butting ring (20), and the other end of the inner housing abuts against the plug housing (11).

9. The sealed optical cable connector as claimed in claim 5, wherein one end of the outer housing (13) away from the plug housing (11) is connected to a tail housing (21) through a screw thread, a glue injection cavity (22) is formed in the tail housing (21), a glue injection hole (23) communicated with the glue injection cavity (22) is formed in the tail housing (21), and the glue injection cavity (22) is filled with a sealant through the glue injection hole (23).

Images