Single fiber to multi-fiber connector and ferrule assembly

Abstract

The application relates to the field of optical fiber connector equipment, in particular to a single-fiber and multi-fiber connector and a ferrule assembly, which comprises a connector shell, a connector tail cover, a fiber ferrule and a dust cap, the connector shell is provided with a sealing cavity along the length direction of the connector shell, the fiber ferrule is inserted into the sealing cavity, the dust cap is arranged at the end surface of the fiber ferrule, a sealing element is sleeved on the circumferential side of the fiber ferrule, and the sealing element and the dust cap are detachably connected, the dust cap is used for sealing the fiber ferrule, the dust cap is used for driving the sealing element to slide along the length direction of the fiber ferrule, and the sealing element is used for performing secondary sealing on the end surface of the fiber ferrule. The application aims to effectively guarantee the network transmission distance and stability during the use of the optical fiber.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fiber connector equipment, in particular to a single fiber and multi-fiber connector and ferrule assembly. BACKGROUND

[0002] The fiber connection equipment is used for connecting the fiber cable and the electronic equipment in the optical fiber communication system, which usually includes a connector for fixing the optical fiber and an optical interface module connected with the optical interface inside the equipment. In the optical fiber communication system, the fiber connector not only connects the fiber cable and the equipment, but also undertakes the important functions of optical signal transmission and conversion. Therefore, when selecting and using the fiber connector, the performance, reliability, cost and other aspects need to be considered.

[0003] In the related art, micron-level particles (such as dust and sand) on the fiber end face will directly block the optical signal transmission path. Even 1 μm of contaminants can cause significant performance degradation, reducing network transmission distance and stability. In the daily exposure environment, dust is easy to invade through the gap of the connector interface, especially when the operation is not standardized or the protective cap is not timely covered.

[0004] The current common practice is to add a dust cap at the end of the fiber connector, which effectively prevents dust from entering the fiber end face. However, the dust cap needs to be removed and replaced for maintenance after a certain period of use. During the removal of the dust cap, the fiber end face is exposed to the air, which can easily lead to contamination of the fiber end face by dust, thereby reducing the network transmission distance and stability. SUMMARY

[0005] The present application provides a single fiber and multi-fiber connector and ferrule assembly, which aims to optimize the structure of the fiber connector, so that the fiber ferrule end face can always remain in a sealed environment when the dust cap is removed for replacement and maintenance, thereby effectively preventing the fiber ferrule end face from being contaminated by dust in the air, and thereby facilitating the protection of network transmission distance and stability.

[0006] The present application provides a single fiber and multi-fiber connector and ferrule assembly, which adopts the following technical solutions:

[0007] A single fiber and multi-fiber connector includes a connector housing, a connector tail sleeve, a fiber ferrule, and a dust cap, the connector housing is provided with a sealing cavity along the length direction thereof, the fiber ferrule is inserted into the sealing cavity, the dust cap is arranged at the end face of the fiber ferrule, the circumferential side of the fiber ferrule is sleeved with a sealing element, and the sealing element and the dust cap are detachably connected, the dust cap is used for sealing the fiber ferrule, and the dust cap is used for driving the sealing element to slide along the length direction of the fiber ferrule, and the sealing element is used for secondary sealing the end face of the fiber ferrule.

[0008] By adopting the above technical scheme, the dust cap is arranged at the end face of the fiber ferrule, the end face of the fiber ferrule is protected by the dust cap, and the end face of the fiber ferrule can be effectively prevented from being polluted by dust in the air, and the end face of the fiber ferrule can be effectively prevented from being damaged or scratched. When the dust cap is removed from the end face of the fiber ferrule for replacement and maintenance, the dust cap drives the sealing element to the end face of the fiber ferrule for secondary sealing of the end face of the fiber ferrule, so that the end face of the fiber ferrule can be always in a sealed environment under the protection of the sealing element when the dust cap is removed for replacement and maintenance, and the end face of the fiber ferrule can be effectively prevented from being polluted by dust in the air, thereby facilitating the guarantee of network transmission distance and stability.

[0009] Preferably, a clamping assembly is arranged between the dust cap and the sealing element, the clamping assembly includes clamping blocks and clamping grooves, the clamping blocks are arranged on the side of the sealing element close to the dust cap, the clamping grooves are arranged on the side of the dust cap close to the sealing element, and the clamping blocks and the clamping grooves are connected in a clamping manner.

[0010] By adopting the above technical scheme, when the dust cap seals the end face of the fiber ferrule, the end of the dust cap extends into the sealing cavity and is connected to the sealing element in a clamping manner. When the dust cap needs to be replaced, the dust cap drives the sealing element to slide synchronously during the removal process until the sealing element is secondary sealed at the end face of the fiber ferrule. In this state, the dust cap and the sealing element are disconnected, the dust cap is removed for replacement, and the sealing element continues to seal the end face of the fiber ferrule, thereby effectively ensuring that the end face of the fiber ferrule is always in a sealed environment.

[0011] Preferably, the clamping blocks include integrally connected first and second blocks, the first block is horizontally arranged, the first block is integrally connected to the end of the sealing element, the second block is obliquely connected to the end of the first block away from the sealing element, the clamping grooves are obliquely arranged, and the oblique angle of the clamping grooves is matched with the oblique angle between the first and second blocks.

[0012] By adopting the technical scheme, when the sealing member and the dustproof cap are specifically clamped, the second block body extends into the clamping groove, and the two are clamped with each other, thereby facilitating the stability of the connection between the sealing member and the dustproof cap.

[0013] Preferably, the first block body and the second block body are connected through a torsional spring.

[0014] By adopting the technical scheme, the first block body and the second block body are connected through the torsional spring, so that the second block body can rotate, thereby facilitating the clamping of the second block body into the clamping groove or the disengagement of the second block body from the clamping groove, and thereby facilitating the connection and disconnection between the sealing member and the dustproof cap.

[0015] Specifically, during the connection of the dustproof cap and the sealing member, the dustproof cap extrudes the second block body, in this state, the second block body gradually rotates towards the first block body, and with the rotation of the second block body, the second block body gradually clamps into the clamping groove of the dustproof cap, thereby completing the clamping between the sealing member and the dustproof cap. When the dustproof cap needs to be replaced, the dustproof cap slides away from the sealing member, in this state, the inner wall of the clamping groove extrudes the second block body, so that the second block body gradually rotates away from the first block body, and with the rotation of the second block body, the second block body gradually extends out of the clamping groove, thereby completing the disconnection between the sealing member and the dustproof cap.

[0016] Preferably, the fiber ferrule is provided with a stop groove along the length direction thereof, the stop groove is inclined to be in a conical shape, the side close to the end face of the fiber ferrule is at a low position, and the side away from the end face of the fiber ferrule is at a high position.

[0017] By adopting the technical scheme, after the dustproof cap drives the sealing member to slide to the end face of the fiber ferrule, the sealing member is stopped at the end face of the fiber ferrule by the stop groove, thereby realizing the sealing of the end face of the fiber ferrule by the sealing member. At the same time, after the sealing member is stopped by the stop groove, the sealing member cannot continue to slide, and the dustproof cap continues to slide away from the end face of the fiber ferrule under the action of the human body at this time, in this state, the clamping groove extrudes the second block body, the second block body rotates away from the first block body, thereby realizing the disengagement of the second block body from the clamping groove, and completing the disconnection between the sealing member and the dustproof cap.

[0018] The inclined stop groove stops the sealing member at the end face of the fiber ferrule without affecting the resetting of the sealing member. After the replacement and maintenance of the dustproof cap are completed, the dustproof cap and the sealing member are clamped again, and then the dustproof cap slides to the end face of the fiber ferrule again. During this process, the sealing member gradually slides away from the end face of the fiber ferrule, until the dustproof cap seals the end face of the fiber ferrule again, and the inclined stop groove does not interfere with the retreat of the sealing member.

[0019] Preferably, the sealing member is composed of a first sealing plate and a second sealing plate on the side close to the fiber ferrule end face, and a relief groove is arranged between the first sealing plate and the second sealing plate.

[0020] By adopting the above technical scheme, the first sealing plate and the second sealing plate at the front end of the sealing member can smoothly slide through the stop groove when the sealing member slides to the fiber ferrule end face. When the front end of the sealing member slides to the fiber ferrule end face, the stop groove stops the tail end of the sealing member, thereby completing the stopping of the sealing member at the fiber ferrule end face for secondary sealing.

[0021] Preferably, the first sealing plate and the second sealing plate are arranged to slide towards each other or away from each other.

[0022] By adopting the above technical scheme, when the sealing member completes the sealing of the end face of the fiber ferrule, the first sealing plate and the second sealing plate slide towards each other until they are closed. In this state, the relief groove disappears, and the sealing member completes the sealing of the end face of the fiber ferrule. When the dust cap is replaced after maintenance, the first sealing plate and the second sealing plate slide away from each other. In this state, the relief groove appears. After the dust cap and the sealing member are reconnected, the dust cap slides to the end face of the fiber ferrule for sealing, and the sealing member retreats to the sealing cavity for resetting.

[0023] Preferably, one end of the first sealing plate close to the second sealing plate is integrally connected with a sealing block in the vertical direction, one end of the second sealing plate close to the first sealing plate is recessed in the direction away from the first sealing plate to form a sealing groove, and the sealing block and the sealing groove are connected in insertion.

[0024] By adopting the above technical scheme, when the first sealing plate and the second sealing plate slide towards each other, the sealing block is inserted into the sealing groove, and the sealing of the first sealing plate and the second sealing plate is completed by the sealing block and the sealing groove, thereby effectively reducing the gap between the first sealing plate and the second sealing plate, thereby facilitating the sealing between the two, and thereby making the sealing of the sealing member on the end face of the fiber ferrule better.

[0025] Preferably, two stop blocks are arranged in the sealing member, and the two stop blocks are arranged at the upper and lower ends of the sealing member. The stop blocks and the top of the sealing member are connected by a reset spring, and the reset spring is used to drive the corresponding stop blocks to rise and fall.

[0026] By adopting the technical scheme, when the sealing member slides on the fiber ferrule, after the sealing member slides to the stop groove position, the stop groove stops the two blocks due to the inclination of the stop groove during the sliding process of the sealing member, and the reset spring releases the elastic force to drive the blocks to move downward, and after the avoidance groove at the front end of the sealing member slides through the stop groove, the stop groove stops the two blocks, thereby limiting the sealing member. During the retreat and reset process of the sealing member, the reset spring drives the corresponding blocks to reset to the initial position.

[0027] A single fiber and multi-fiber ferrule assembly adopts the single fiber and multi-fiber connector, and comprises a protective sleeve, and the connector tail sleeve is embedded in the protective sleeve.

[0028] By adopting the technical scheme, the protective sleeve can further play a dustproof effect and effectively prevent the fiber from bending and breaking.

[0029] In summary, the present application has at least one of the following beneficial technical effects:

[0030] 1. The dustproof cap is arranged at the end face of the fiber ferrule, and the dustproof cap protects the end face of the fiber ferrule, thereby effectively preventing the end face of the fiber ferrule from being polluted by dust in the air and effectively preventing the end face of the fiber ferrule from being damaged or scratched. When the dustproof cap is removed from the end face of the fiber ferrule for replacement and maintenance, the dustproof cap drives the sealing member to the end face of the fiber ferrule to seal the end face of the fiber ferrule again, so that the end face of the fiber ferrule can always be in a sealed environment under the protection of the sealing member when the dustproof cap is removed for replacement and maintenance, thereby effectively preventing the end face of the fiber ferrule from being polluted by dust in the air, and thereby facilitating the protection of network transmission distance and stability.

[0031] 2. The first block and the second block are connected by the torsional spring, so that the second block can rotate, thereby facilitating the second block to be clamped into the clamping groove or separated from the clamping groove, and thereby facilitating the connection between the sealing member and the dustproof cap to be disconnected.

[0032] Specifically, during the connection of the dustproof cap and the sealing member, the dustproof cap extrudes the second block, and in this state, the second block gradually rotates towards the first block, and with the rotation of the second block, the second block gradually clamps into the clamping groove of the dustproof cap, thereby completing the clamping between the sealing member and the dustproof cap. When the dustproof cap needs to be replaced, the dustproof cap slides away from the sealing member, and in this state, the inner wall of the clamping groove extrudes the second block, so that the second block gradually rotates away from the first block, and with the rotation of the second block, the second block gradually extends out of the clamping groove, thereby completing the disconnection between the sealing member and the dustproof cap.

[0033] 3. After the dustproof cap drives the sealing element to slide to the end face of the fiber ferrule, the sealing element is stopped at the end face of the fiber ferrule by the stopping groove, thereby realizing the sealing of the end face of the fiber ferrule by the sealing element. Meanwhile, after the sealing element is stopped by the stopping groove, the sealing element cannot continue to slide, and the dustproof cap continues to slide away from the end face of the fiber ferrule under the action of the human body at this time. In this state, the clamping groove extrudes the second block, the second block rotates away from the first block, thereby realizing the disengagement of the second block from the clamping groove and completing the disconnection between the sealing element and the dustproof cap.

[0034] The obliquely arranged stopping groove stops the sealing element at the end face of the fiber ferrule without affecting the resetting of the sealing element. After the dustproof cap is replaced and maintained, the dustproof cap and the sealing element are reconnected, and then the dustproof cap slides to the end face of the fiber ferrule again. In this process, the sealing element gradually slides away from the end face of the fiber ferrule, and the obliquely arranged stopping groove does not interfere with the retraction of the sealing element. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a structural schematic diagram of the whole embodiment of the present application;

[0036] Figure 2 is a structural schematic diagram of the position relationship of the sealing element according to the embodiment of the present application;

[0037] Figure 3 is a structural schematic diagram of the position relationship of the clamping block, the clamping groove and the stopping groove according to the embodiment of the present application;

[0038] Figure 4 is an enlarged schematic diagram of A in Figure 3

[0039] Figure 5 is a structural schematic diagram of the position relationship of the blocking block and the resetting spring according to the embodiment of the present application.

[0040] Fig. 1, connector housing; 2, connector tail sleeve; 3, fiber ferrule; 4, dustproof cap; 5, sealing cavity; 6, sealing element; 7, clamping block; 71, first block; 72, second block; 8, clamping groove; 9, stopping groove; 10, first sealing plate; 11, second sealing plate; 12, avoiding groove; 13, sealing block; 14, sealing groove; 15, blocking block; 16, resetting spring; 17, protective sleeve. DETAILED DESCRIPTION

[0041] The following will be described in detail with reference to the accompanying drawings. Figure 1 - the accompanying drawings Figure 5 The present application will be described in further detail.

[0042] Embodiment: ​

[0043] The embodiment of the present application discloses a single-fiber and multi-fiber connector, referring to Figure 1 and Figure 2 , including a connector housing 1, a connector tail sleeve 2, a fiber ferrule 3 and a dust cap 4, the connector housing 1 is standardized, all LC connectors can be inserted into a patch panel adapter, active equipment or passive equipment with LC connection, the connector tail sleeve 2 is connected to the end of the connector housing 1 for preventing fiber bending and breaking. The fiber ferrule 3 is used for fixing the fiber and keeping alignment with the connected fiber, the connector housing 1 is provided with a sealed cavity 5 along the length direction, the main part of the fiber ferrule 3 is inserted into the sealed cavity 5 for effective sealing, and the end face of the fiber ferrule 3 extends out of the sealed cavity 5. The dust cap 4 is arranged at the end face of the fiber ferrule 3, the end face of the fiber ferrule 3 is protected by the dust cap 4, thereby effectively preventing the end face of the fiber ferrule 3 from being polluted by dust in the air, and problems such as damage or scratches of the fiber end face can be effectively avoided.

[0044] Further, referring to Figure 1 and Figure 2 , the circumferential side of the fiber ferrule 3 is sleeved with a sealing element 6, and the sealing element 6 is detachably connected between the dust cap 4, the dust cap 4 is used to drive the sealing element 6 to slide along the length direction of the fiber ferrule 3, and the sealing element 6 is used to seal the end face of the fiber ferrule 3 again.

[0045] In this way, when the dust cap 4 is removed from the end face of the fiber ferrule 3 for replacement and maintenance, the dust cap 4 is used to drive the sealing element 6 to the end face of the fiber ferrule 3 to seal the fiber end face again, so that the end face of the fiber ferrule 3 can always be in a sealed environment under the protection of the sealing element 6 when the dust cap 4 is removed for replacement and maintenance, thereby effectively preventing the end face of the fiber ferrule 3 from being polluted by dust in the air, and further facilitating to ensure the network transmission distance and stability.

[0046] Specifically, a clamping assembly is arranged between the dust cap 4 and the sealing element 6, and the clamping assembly is used to realize detachable connection between the dust cap 4 and the sealing element 6.

[0047] Referring to Figure 2 and Figure 3 , the clamping assembly includes a clamping block 7 and a clamping groove 8, the clamping block 7 is provided in two, the two clamping blocks 7 are distributed in an upper and lower interval on one side of the sealing element 6 close to the dust cap 4, the clamping groove 8 is also provided in two, the two clamping grooves 8 are distributed in an upper and lower interval on one side of the dust cap 4 close to the sealing element 6, the two clamping blocks 7 and the two clamping grooves 8 correspond to each other, and the corresponding clamping block 7 and clamping groove 8 are clamped and connected.

[0048] When the dustproof cap 4 seals the optical fiber end face, the end of the dustproof cap 4 extends into the sealing cavity 5 and is connected with the sealing element 6. When the dustproof cap 4 needs to be replaced, the dustproof cap 4 drives the sealing element 6 to slide synchronously during the removal process until the sealing element 6 is resealed at the optical fiber end face. In this state, the dustproof cap 4 and the sealing element 6 are disconnected, the dustproof cap 4 is removed for replacement, and the sealing element 6 continues to seal the optical fiber end face, thereby effectively ensuring that the optical fiber end face is always in a sealed environment.

[0049] Specifically, referring to Figure 2 、 Figure 3 and Figure 4 , the clamping block 7 comprises a first block body 71 and a second block body 72 connected integrally, the first block body 71 is horizontally arranged, the first block body 71 and the end of the sealing element 6 are connected integrally, and the second block body 72 is obliquely connected to the end of the first block body 71 away from the sealing element 6. The clamping groove 8 at the end of the dustproof cap 4 is also obliquely arranged, and the oblique angle of the clamping groove 8 is matched with the oblique angle between the first block body 71 and the second block body 72.

[0050] When the sealing element 6 and the dustproof cap 4 are connected, the second block body 72 extends into the clamping groove 8, and the two are connected, thereby facilitating the stability of the connection between the sealing element 6 and the dustproof cap.

[0051] Further, the first block body 71 and the second block body 72 are connected by a torsion spring. The torsion spring connects the first block body 71 and the second block body 72, so that the second block body 72 can rotate, thereby facilitating the second block body 72 to be clamped into the clamping groove 8 or separated from the clamping groove 8, thereby facilitating the disconnection between the sealing element 6 and the dustproof cap 4.

[0052] Specifically, during the connection of the dustproof cap 4 and the sealing element 6, the dustproof cap 4 extrudes the second block body 72. In this state, the second block body 72 gradually rotates towards the first block body 71, and with the rotation of the second block body 72, the second block body 72 gradually clamps into the clamping groove 8 of the dustproof cap 4, thereby completing the clamping between the sealing element 6 and the dustproof cap 4. When the dustproof cap 4 needs to be replaced, the dustproof cap 4 slides away from the sealing element 6. In this state, the inner wall of the clamping groove 8 extrudes the second block body 72, so that the second block body 72 gradually rotates away from the first block body 71. With the rotation of the second block body 72, the second block body 72 gradually extends out of the clamping groove 8, thereby completing the disconnection between the sealing element 6 and the dustproof cap 4.

[0053] Further, referring to Figure 2 、 Figure 3 and Figure 4, the fiber ferrule 3 is provided with a stop groove 9 along the length direction, the stop groove 9 is provided in an inclined manner and is in a whole conical shape, the side close to the end face of the fiber ferrule 3 is in a low position, and the side far away from the end face of the fiber ferrule 3 is in a high position. After the dustproof cap 4 drives the sealing element 6 to slide to the end face of the fiber ferrule 3, the sealing element 6 is stopped at the end face of the fiber ferrule 3 by the stop groove 9, and then the sealing of the end face of the fiber ferrule 3 by the sealing element 6 is realized. Meanwhile, after the sealing element 6 is stopped by the stop groove 9, the sealing element 6 cannot continue to slide, and the dustproof cap 4 continues to slide away from the end face of the fiber ferrule 3 under the action of the human hand, in this state, the clamping groove 8 extrudes the second block 72, the second block 72 rotates away from the first block 71, and then the second block 72 is separated from the clamping groove 8, and the disconnection between the sealing element 6 and the dustproof cap 4 is completed.

[0054] The stop groove 9 provided in an inclined manner stops the sealing element 6 at the end face of the fiber ferrule 3, and does not affect the resetting of the sealing element 6. After the dustproof cap 4 is replaced and maintained, the dustproof cap 4 and the sealing element 6 are reconnected, and then the dustproof cap 4 slides to the end face of the fiber ferrule 3 again, in this process, the sealing element 6 slides away from the end face of the fiber ferrule 3, and the dustproof cap 4 seals the end face of the fiber ferrule 3 again, and the stop groove 9 provided in an inclined manner does not interfere with the retreat of the sealing element 6.

[0055] Specifically, referring to Figure 3 , Figure 4 and Figure 5 , the side close to the end face of the fiber ferrule 3 of the sealing element 6 is composed of a first sealing plate 10 and a second sealing plate 11, the first sealing plate 10 and the second sealing plate 11 are both in a cuboid shape, the first sealing plate 10 is located directly above the second sealing plate 11, and the two clamping blocks 7 are integrally connected to the first sealing plate 10 and the second sealing plate 11 respectively. Meanwhile, the first sealing plate 10 and the second sealing plate 11 are provided with an avoiding groove 12, the avoiding groove 12 is used to make the first sealing plate 10 and the second sealing plate 11 be distributed in an up-down manner, and then the first sealing plate 10 and the second sealing plate 11 at the front end of the sealing element 6 can smoothly slide through the stop groove 9 when the sealing element 6 slides to the end face of the fiber ferrule 3. When the front end of the sealing element 6 slides to the end face of the fiber ferrule 3, the stop groove 9 stops the tail end of the sealing element 6, and then the sealing element 6 is stopped at the end face of the fiber ferrule 3 to realize secondary sealing.

[0056] The first sealing plate 10 and the second sealing plate 11 are arranged to slide towards each other or away from each other. When the sealing element 6 completes the sealing of the end face of the fiber ferrule 3, the first sealing plate 10 and the second sealing plate 11 slide towards each other until they are closed. In this state, the avoiding groove 12 disappears, and the sealing element 6 completes the sealing of the end face of the fiber ferrule 3. When the dust cap 4 is replaced after maintenance, the first sealing plate 10 and the second sealing plate 11 slide away from each other. In this state, the avoiding groove 12 appears. After the dust cap 4 and the sealing element 6 are re-coupled, the dust cap 4 slides to the end face of the fiber ferrule 3 to seal, and the sealing element 6 retreats to reset in the sealing cavity 5.

[0057] In the embodiment, the first sealing plate 10 and the second sealing plate 11 are both telescopic, like an organ structure, so that the first sealing plate 10 and the second sealing plate 11 can slide towards each other or away from each other.

[0058] Specifically, referring to Figure 3 , Figure 4 and Figure 5 , two stop blocks 15 are arranged at the position close to the rear end of the sealing element 6. The stop blocks 15 are distributed at the upper and lower ends of the sealing element 6. The stop blocks 15 and the top of the sealing element 6 are connected by a reset spring 16, which is used to drive the corresponding stop block 15 to ascend and descend in the sealing element 6. As the sealing element 6 slides on the fiber ferrule 3, when the sealing element 6 slides to the position of the stop groove 9, the sealing element 6 slides in the process, and because the stop groove 9 is arranged to be inclined, as the sealing element 6 slides, the reset spring 16 releases the elastic force to drive the stop block 15 to descend. When the avoiding groove 12 at the front end of the sealing element 6 slides past the stop groove 9, the stop groove 9 stops the two stop blocks 15, thereby limiting the sealing element 6. In the process of retreating and resetting, the reset spring 16 drives the corresponding stop block 15 to reset to the initial position.

[0059] Further, referring to Figure 4 and Figure 5 , the end of the first sealing plate 10 close to the second sealing plate 11 is integrally connected with a sealing block 13 in the vertical direction. The end of the second sealing plate 11 close to the first sealing plate 10 is recessed with a sealing groove 14 away from the first sealing plate 10. The sealing block 13 and the sealing groove 14 are both in the shape of a cuboid, and are connected by insertion.

[0060] When the first sealing plate 10 and the second sealing plate 11 slide towards each other, the sealing block 13 is inserted into the sealing groove 14, and the sealing between the first sealing plate 10 and the second sealing plate 11 is completed by the sealing block 13 and the sealing groove 14, thereby effectively reducing the gap between the first sealing plate 10 and the second sealing plate 11, thereby facilitating the sealing between the two, and thereby making the sealing effect of the sealing member 6 on the end face of the fiber ferrule 3 better.

[0061] In the embodiment, the sealing block 13 is provided with anti-skid lines on the side, which can effectively increase the stability of the connection between the sealing block 13 and the sealing groove 14.

[0062] A single-fiber and multi-fiber ferrule assembly, referring to Figure 1 , including a protective sleeve 17, after the assembly of the fiber connector, the connector tail sleeve 2 is embedded in the protective sleeve 17, and the protective sleeve 17 is used for protecting and fixing the connector tail sleeve 2, which can further play a dustproof effect and effectively prevent the fiber from bending and breaking.

[0063] The implementation principle of the single-fiber and multi-fiber connector and the ferrule assembly in the embodiment is:

[0064] When the dust cap 4 is removed from the end face of the fiber ferrule 3 for replacement and maintenance, the dust cap 4 drives the sealing member 6 to the end face of the fiber ferrule 3 for secondary sealing of the fiber end face, so that the fiber connector can still be in a sealed environment under the protection of the sealing member 6 when the dust cap 4 is removed for replacement and maintenance, thereby effectively preventing the end face of the fiber ferrule 3 from being contaminated by dust in the air, thereby facilitating the protection of network transmission distance and stability.

[0065] When the dust cap 4 seals the fiber end face, the end of the dust cap 4 extends into the sealing cavity 5 and is connected to the sealing member 6. When the dust cap 4 needs to be replaced, the dust cap 4 drives the sealing member 6 to slide synchronously during removal, until the sealing member 6 is secondary sealed at the fiber end face. In this state, the dust cap 4 and the sealing member 6 are disconnected, the dust cap 4 is removed for replacement, and the sealing member 6 continues to seal the fiber end face, thereby effectively ensuring that the fiber end face is always in a sealed environment.

[0066] The fiber ferrule 3 is provided with a stop groove 9 along the length direction thereof, the stop groove 9 is provided in an inclined manner and is in a whole conical shape, the side close to the end face of the fiber ferrule 3 is in a low position, and the side far away from the end face of the fiber ferrule 3 is in a high position. After the dustproof cap 4 drives the sealing element 6 to slide to the end face of the fiber ferrule 3, the sealing element 6 is stopped at the end face of the fiber ferrule 3 by the stop groove 9, and then the sealing of the end face of the fiber ferrule 3 by the sealing element 6 is realized. Meanwhile, after the sealing element 6 is stopped by the stop groove 9, the sealing element 6 cannot continue to slide, and the dustproof cap 4 continues to slide away from the end face of the fiber ferrule 3 under the action of the human body at this time, in this state, the clamping groove 8 extrudes the second block 72, the second block 72 rotates away from the first block 71, and then the second block 72 is separated from the clamping groove 8, and the disconnection between the sealing element 6 and the dustproof cap 4 is completed.

[0067] The stop groove 9 provided in an inclined manner stops the sealing element 6 at the end face of the fiber ferrule 3, and does not affect the resetting of the sealing element 6. After the dustproof cap 4 is replaced and maintained, the dustproof cap 4 and the sealing element 6 are reconnected, and then the dustproof cap 4 slides to the end face of the fiber ferrule 3 again, in this process, the sealing element 6 slides away from the end face of the fiber ferrule 3, until the dustproof cap 4 seals the end face of the fiber ferrule 3 again, and the stop groove 9 provided in an inclined manner does not interfere with the retreat of the sealing element 6.

[0068] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A single-fiber to multi-fiber connector, characterized by: The application relates to a connector, which comprises a connector housing (1), a connector tail cover (2), a fiber ferrule (3) and a dustproof cap (4), the connector housing (1) is provided with a sealing cavity (5) along the length direction of the connector housing (1), the fiber ferrule (3) is inserted into the sealing cavity (5), the dustproof cap (4) is arranged at the end surface of the fiber ferrule (3), a sealing element (6) is sleeved on the circumferential side of the fiber ferrule (3), the sealing element (6) and the dustproof cap (4) are detachably connected, the dustproof cap (4) is used for sealing the fiber ferrule (3), and the dustproof cap (4) is used for driving the sealing element (6) to slide along the length direction of the fiber ferrule (3), and the sealing element (6) is used for sealing the end surface of the fiber ferrule (3) again. A clamping assembly is arranged between the dustproof cap (4) and the sealing element (6), the clamping assembly comprises clamping blocks (7) and clamping grooves (8), the clamping blocks (7) are arranged on the side of the sealing element (6) close to the dustproof cap (4), the clamping grooves (8) are arranged on the side of the dustproof cap (4) close to the sealing element (6), and the clamping blocks (7) and the clamping grooves (8) are clamped and connected. The clamping block (7) comprises a first block body (71) and a second block body (72) which are integrally connected, the first block body (71) is horizontally arranged, the first block body (71) and the end of the sealing element (6) are integrally connected, the second block body (72) is obliquely connected to the end of the first block body (71) away from the sealing element (6), the clamping groove (8) is obliquely arranged, and the oblique angle of the clamping groove (8) is matched with the oblique angle between the first block body (71) and the second block body (72). The first block body (71) and the second block body (72) are connected through a torsional spring. The fiber ferrule (3) is provided with a stop groove (9) along the length direction of the fiber ferrule (3), the stop groove (9) is obliquely arranged and has a conical shape, the side close to the end surface of the fiber ferrule (3) is at a low position, and the side away from the end surface of the fiber ferrule (3) is at a high position.

2. A one-fiber to multi-fiber connector according to claim 1, wherein: The side of the sealing element (6) close to the end surface of the fiber ferrule (3) is composed of a first sealing plate (10) and a second sealing plate (11), and an avoiding groove (12) is arranged between the first sealing plate (10) and the second sealing plate (11).

3. A one-fiber to multi-fiber connector according to claim 2, wherein: The first sealing plate (10) and the second sealing plate (11) are arranged to slide towards or away from each other.

4. A one-fiber to multi-fiber connector according to claim 3, wherein: The end of the first sealing plate (10) close to the second sealing plate (11) is integrally connected with a sealing block (13) in the vertical direction, the end of the second sealing plate (11) close to the first sealing plate (10) is recessed in the direction away from the first sealing plate (10) and has a sealing groove (14), and the sealing block (13) and the sealing groove (14) are inserted and connected.

5. A one-fiber to multi-fiber connector according to claim 4, wherein: Two stop blocks (15) are arranged in the seal (6), and the two stop blocks (15) are arranged at the upper and lower ends of the seal (6), and the stop block (15) and the top of the seal (6) are connected through a reset spring (16), and the reset spring (16) is used for driving the corresponding stop block (15) to ascend and descend.

6. A single-fiber to multi-fiber ferrule assembly, characterized by: The single fiber and multi-fiber connector of any one of claims 1-5 comprises a protective sleeve (17), and the connector tail sleeve (2) is embedded in the protective sleeve (17).

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