SFP waterproof external member structure

Abstract

The utility model discloses an SFP waterproof external member structure comprising a plug housing, a plug sliding sleeve, a sealing ring, an unlocking block, a wire rod sealing member and a nut cover. A buckle is convexly arranged at the front end of the plug shell; the plug sliding sleeve is sleeved outside the plug shell in a front-back sliding manner, a window is formed in the side surface of the front end of the plug sliding sleeve, the buckle is positioned in the window, an unlocking inclined surface is formed on the front side of the window, and the unlocking inclined surface is opposite to the buckle; the sealing ring is sleeved at the front end of the plug shell and is positioned in front of the buckle; the unlocking block is arranged in the front end of the plug shell; the waterproof effect is achieved by arranging the plug sliding sleeve, the sealing ring, the unlocking block, the wire rod sealing piece and the nut cover on the plug shell in a matched mode, the LC optical fiber cable can be pulled out together by directly unlocking the buckle on the plug shell, the size is small, the high-density layout requirement is met, use is convenient, and cost is low. The product is suitable for outdoor installation of SFP optical modules and optical fiber jumpers which are universal in the industry.

Description

Technical Field

[0001] The utility model relates to the field technology of SFP electric connector, in particular to an SFP waterproof kit structure. Background Art

[0002] With the continuous development of society, human demand for communication is constantly increasing, the network scale and application scope of the Internet are constantly expanding rapidly, and the technical connotation has also broken through the constraints of the traditional Internet. In recent years, the transmission and exchange of information is developing towards optical networks, and optical fiber communication has become the main means of transmission in modern information networks. Therefore, the demand for optical modules in the communications industry has also grown rapidly. In order to meet the growing needs of the system, optical modules are constantly moving towards complexity and diversity. Among them, SFP optical modules are becoming more and more mature in use by major mainstream equipment manufacturers around the world under the specifications of the SFPMSA protocol. SFP optical modules are miniaturized, hot-swappable transceiver optical modules. SFP optical modules include a shell and internal circuit boards and electronic components such as lasers. SFP optical modules are connected to the circuit boards of the equipment through a cage.

[0003] In order to achieve waterproof after the fiber optic plug and SFP optical module are plugged in and connected, an SFP waterproof kit is currently set on the fiber optic plug. The SFP waterproof kit in the prior art generally adopts a screw thread lock connection, so that finger position operation space is required for screwing in and out, and the product layout space on the chassis panel is large, which cannot meet the requirements of miniaturization and high density. Although the sliding sleeve method is currently used, when pulling out, the plug shell cannot be easily pulled out because the tail of the optical fiber wire is compressed and fixed by the sealing ring. It is necessary to first unscrew the nut, unlock the shell buckle, pull it out, and then unlock the LC optical fiber line, which is inconvenient to use. Utility Model Content

[0004] In view of this, the present invention aims to solve the defects in the prior art, and its main purpose is to provide a SFP waterproof kit structure, which can effectively solve the problems that the existing SFP waterproof kit cannot meet the requirements of miniaturization and high density or is inconvenient to use.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A SFP waterproof kit structure comprises a plug shell, a plug sleeve, a sealing ring, an unlocking block, a wire seal and a nut cover; a buckle is convexly arranged at the front end of the plug shell; the plug sleeve can be slidably sleeved on the outside of the plug shell, a window is provided on the front end side of the plug sleeve, the buckle is located in the window, and an unlocking inclined surface is formed on the front side of the window, the unlocking inclined surface is opposite to the buckle; the sealing ring is sleeved on the front end of the plug shell and is located in front of the buckle; the unlocking block is arranged inside the front end of the plug shell; the wire seal is arranged inside the rear end of the plug shell; the nut cover comprises two halves of nut shells, the two halves of the nut shells are assembled and locked by screws, and the nut cover is sleeved on the rear end of the plug shell and squeezes the wire seal.

[0007] As a preferred solution, an annular groove is concavely formed on the outer peripheral side of the front end of the plug housing, and the sealing ring is embedded in the annular groove and fixed, so that the installation is stable and reliable.

[0008] As a preferred solution, the rear end of the plug shell is provided with a threaded section and a plurality of strip columns, and the plurality of strip columns are arranged at intervals in a circle behind the threaded section. The nut cover is threadedly connected to the threaded section and causes the plurality of strip columns to deform and extrude the wire seal, which has a simple structure and a good sealing effect.

[0009] As a preferred solution, buckles are provided on both sides of the front end of the plug housing. Correspondingly, windows are provided on both sides of the front end of the plug sleeve. The two buckles are respectively located in the two windows, so that the installation is more stable.

[0010] As a preferred solution, an extension arm and a receiving groove are provided at the front end of the unlocking block. The extension arm can press down the plug at the front end of the LC optical fiber cable to unlock it, and the receiving groove can limit the LC optical fiber cable, so that the LC optical fiber cable can be pulled out together by directly unlocking the buckle, and the second insertion can also be accurately limited, thereby achieving the purpose of convenient operation.

[0011] As a preferred solution, a wire passing hole is formed between the rear ends of the two half nut shells, wherein through holes are opened on both sides of the rear end of one half of the nut shell, and screw holes are opened on both sides of the rear end of the other half of the nut shell. Two screws pass through the two through holes respectively and are screwed and fixed with the corresponding screw holes. The wire passing hole is located between the two screws, and the structure is simple and the installation is stable.

[0012] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0013] A waterproof effect is achieved by arranging a plug sleeve, a sealing ring, an unlocking block, a wire seal and a nut cover on the plug shell. The LC optical fiber line can be pulled out together by directly unlocking the buckle on the plug shell. The product is miniaturized, meets the requirements of high-density layout, and is easy to use. This product is suitable for outdoor installation of common SFP optical modules and optical fiber jumpers in the industry.

[0014] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of an assembly stereogram of a preferred embodiment of the utility model;

[0016] Figure 2 It is an exploded view of a preferred embodiment of the utility model;

[0017] Figure 3 It is an enlarged schematic diagram of the plug housing in the preferred embodiment of the utility model;

[0018] Figure 4 This is a three-dimensional schematic diagram of the preferred embodiment of the utility model in use;

[0019] Figure 5 This is a schematic diagram of the use status of a preferred embodiment of the utility model;

[0020] Figure 6 This is a partial assembly diagram of a preferred embodiment of the utility model in use;

[0021] Figure 7 This is a cross-sectional schematic diagram of a preferred embodiment of the utility model in use;

[0022] Figure 8 It is another cross-sectional schematic diagram of the preferred embodiment of the utility model in use.

[0023] Description of the accompanying drawings:

[0024] 10. Plug housing 11. Buckle

[0025] 12. Annular groove 13. Thread segment

[0026] 14, bar column 20, plug sleeve

[0027] 21. Window 22. Handle

[0028] 201, unlocking slope 30, sealing ring

[0029] 40. Unlocking block 41. Extension arm

[0030] 42, groove 50, wire seal

[0031] 60. Nut cover 61. Half nut shell

[0032] 62, screw 601, wire hole

[0033] 602, through hole 603, screw hole

[0034] 70. LC fiber optic cable 71. Plug

[0035] 81. Equipment housing 82. Installation housing

[0036] 821, frame 822, buckle slot

[0037] 83. Screw 84. Sealing gasket

[0038] 85. Optical module. DETAILED DESCRIPTION

[0039] Please refer to Figures 1 to 8 As shown, it shows the specific structure of a preferred embodiment of the utility model, including a plug housing 10, a plug sleeve 20, a sealing ring 30, an unlocking block 40, a wire seal 50 and a nut cover 60.

[0040] A buckle 11 is convexly provided at the front end of the plug shell 10; an annular groove 12 is concavely provided on the outer peripheral side of the front end of the plug shell 10, and a threaded section 13 and a plurality of strip columns 14 are provided at the rear end of the plug shell 10. The plurality of strip columns 14 are arranged at intervals in a circle behind the threaded section 13, and buckles 11 are provided on both sides of the front end of the plug shell 10 to ensure a more secure installation with the outside.

[0041] The plug sleeve 20 can be slidably sleeved on the plug housing 10. A window 21 is provided on the front side of the plug sleeve 20. The buckle 11 is located in the window 21. An unlocking slope 201 is formed on the front side of the window 21. The unlocking slope 201 is opposite to the buckle 11, so that when the plug sleeve 20 slides backward, the buckle 11 is forced to open outward by the unlocking slope 201, thereby achieving release and unlocking. In this embodiment, windows 21 are provided on both sides of the front end of the plug sleeve 20. The two buckles 11 are respectively located in the two windows 21, so as to lock and unlock at the same time. A handle 22 is provided at the rear end of the plug sleeve 20, so that the user can pull the plug sleeve 20 by hand.

[0042] The sealing ring 30 is sleeved on the front end of the plug housing 10 and is located in front of the buckle 11. In this embodiment, the sealing ring 30 is embedded in the annular groove 12 and fixed, and is firmly installed and not easy to fall off.

[0043] The unlocking block 40 is arranged inside the front end of the plug housing 10; the front end of the unlocking block 40 is provided with an extension arm 41 and a receiving groove 42, the extension arm 41 can press down the plug 71 at the front end of the LC optical fiber line 70 to unlock, and the receiving groove 42 can limit the LC optical fiber line 70, so that the direct unlocking buckle 11 can pull out the LC optical fiber line 70 together, and it can also be accurately limited when inserted for the second time, so as to achieve the purpose of convenient operation.

[0044] The wire seal 50 is disposed inside the rear end of the plug housing 10 . In this embodiment, the wire seal 50 is a cylindrical structure and is sleeved on the LC optical fiber 70 .

[0045] The nut cover 60 includes two halves of a nut shell 61, which are assembled and locked by screws 62. The nut cover 60 is sleeved on the rear end of the plug housing 10 and squeezes the wire seal 50. In this embodiment, the nut cover 60 is screwed with the threaded section 13 and causes the plurality of bar columns 14 to deform and squeeze the wire seal 50, which has a simple structure and a good sealing effect. In addition, a wire hole 601 is formed between the rear ends of the two halves of the nut shell 61, wherein a through hole 602 is provided on both sides of the rear end of one half of the nut shell 61, and a screw hole 603 is provided on both sides of the rear end of the other half of the nut shell 61. The two screws 62 pass through the two through holes 602 and are screwed and fixed with the corresponding screw holes 603. The wire hole 601 is located between the two screws 62, which has a simple structure and is stable to install.

[0046] The method of using this embodiment is described in detail as follows:

[0047] An installation shell 82 is provided on the device housing 81. The installation shell 82 is sealed and waterproof by squeezing the sealing gasket 84 through the locking screws 83. A square frame 821 protrudes outward from the installation shell 82. Buckle grooves 822 are provided on both sides of the square frame 821 to accommodate the buckles 11 on the plug housing 10. When in use, the optical module 85 is first set in the device housing 81, then the LC optical fiber line 70 is inserted into the plug housing 10, the front end of the LC optical fiber line is inserted into the optical module 85, and the buckle 11 on the plug housing 10 is locked with the buckle groove 822. When the front end of the plug housing 10 is inserted into the square frame 821 of the installation shell 82, the sealing ring 30 is squeezed between the outer wall of the plug housing 10 and the inner wall of the installation shell 82, and water vapor cannot enter the interior of the electrical connector from the joint gap to reach the interior of the device housing 81. Then, the unlocking block 40 is installed in the plug housing 10, and then the unlocking block 40 is installed. Next, the wire seal 50 is put on the LC optical fiber line 70 and installed in the plug housing 10. Then, the two halves of the nut shell 61 are buckled onto the LC optical fiber line 70. The two halves of the nut shell 61 are locked and fixed with screws to form a nut cover 60. Next, the nut cover 60 is tightened and locked into the rear end of the plug housing 10 to complete the assembly. When the nut cover 60 is tightened, the strip column 14 is deformed and squeezed to squeeze the wire seal 50, so that it generates radial force to wrap the LC optical fiber line 70. Water vapor cannot enter the interior of the electrical connector from the joint gap to reach the interior of the device housing 81, thereby achieving the waterproof function of the entire connection system.

[0048] During disassembly, the handle 22 of the plug sleeve 20 is grasped to slide the plug sleeve 20 backward relative to the plug housing 10, and the buckle 11 opens outward along the unlocking slope 201, thereby realizing the release and unlocking. At the same time, the extension arm 41 on the unlocking block 40 presses down the plug 71 at the front end of the LC optical fiber line 70 to unlock it, so that the buckle 11 can be directly unlocked to pull out the LC optical fiber line 70, thereby saving operating space and achieving the purpose of miniaturization.

[0049] The design focus of the utility model is: a plug sleeve, a sealing ring, an unlocking block, a wire seal and a nut cover are arranged on the plug shell to achieve a waterproof effect. The LC optical fiber line can be pulled out together by directly unlocking the buckle on the plug shell. The volume is small, the requirements of high-density layout are met, and the product is easy to use. This product is suitable for outdoor installation of SFP optical modules and optical fiber jumpers commonly used in the industry.

[0050] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A SFP waterproof kit structure, characterized in that: It includes a plug housing, a plug sleeve, a sealing ring, an unlocking block, a wire seal and a nut cover; A buckle is protruding from the front end of the plug shell; the plug sleeve can be slidably sleeved on the outside of the plug shell, a window is opened on the front end side of the plug sleeve, the buckle is located in the window, and an unlocking slope is formed on the front side of the window, the unlocking slope is opposite to the buckle; the sealing ring is sleeved on the front end of the plug shell and is located in front of the buckle; the unlocking block is arranged inside the front end of the plug shell; the wire seal is arranged inside the rear end of the plug shell; the nut cover includes two halves of the nut shell, the two halves of the nut shell are assembled and locked by screws, and the nut cover is sleeved on the outside of the rear end of the plug shell and squeezes the wire seal.

2. The SFP waterproof kit structure according to claim 1, characterized in that: An annular groove is concavely formed on the outer peripheral side of the front end of the plug housing, and the sealing ring is embedded in the annular groove and fixed.

3. The SFP waterproof kit structure according to claim 1, characterized in that: The rear end of the plug housing is provided with a threaded section and a plurality of strip columns, which are arranged at intervals in a circle behind the threaded section. The nut cover is screwed together with the threaded section and causes the plurality of strip columns to deform and extrude the wire seal.

4. The SFP waterproof kit structure according to claim 1, characterized in that: Buckles are arranged on both sides of the front end of the plug housing. Correspondingly, windows are opened on both sides of the front end of the plug sleeve, and two buckles are respectively located in the two windows.

5. The SFP waterproof kit structure according to claim 1, characterized in that: The front end of the unlocking block is provided with an extension arm and a receiving groove.

6. The SFP waterproof kit structure according to claim 1, characterized in that: A wire passing hole is formed between the rear ends of the two half nut shells, wherein through holes are opened on both sides of the rear end of one half of the nut shell, and screw holes are opened on both sides of the rear end of the other half of the nut shell. Two screws pass through the two through holes respectively and are screwed and fixed with the corresponding screw holes. The wire passing hole is located between the two screws.

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