Waterproof optical fiber connector

Abstract

The invention relates to a waterproof optical fiber connector. The connector comprises a housing fixing member; an end cap; the outer protection sealing rubber mat is arranged between the end faces, making contact with the shell fixing piece, of the end cap; a bayonet piece; an adapter; the sealing tail cap sleeve is connected with a sealing lock catch, the sealing lock catch is provided with a standard optical fiber connector, the standard optical fiber connector is inserted into the adapter when the sealing lock catch is inserted into the shell fixing piece, and a second inner sealing rubber ring is arranged between the sealing lock catch and the bayonet lock piece. According to the waterproof optical fiber connector, the connection stability and the waterproof performance of the shell joint part can be applied to various special industrial-grade fields through a construction site, plug-and-play assembly is convenient, deployment is rapid, the construction efficiency is improved, the construction cost is saved, the construction quality is improved, and meanwhile later maintenance is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of fiber optic connectors, and in particular to a waterproof fiber optic connector. Background Art

[0002] High-stability industrial-grade waterproof fiber optic connectors are a type of connector widely used in various environments with special requirements, especially in environments where stable and reliable connections are needed. They are commonly used in aviation, industrial automation, medical equipment, and other high-demand electronic systems.

[0003] In aviation plugs and other types of advanced connectors, waterproofing is a very important feature that ensures the reliability and functionality of the connector under various environmental conditions. The waterproof structure refers to the features in the connector design used to prevent moisture, humidity, or other liquids from entering the interior of the connector. Usually, a rubber sealing ring or gasket is installed at the joint of the connector. When the connector is assembled, the sealing ring is compressed to form a tight barrier to prevent moisture from entering. However, due to the possibility of the joint of the connector housing coming apart due to external force or vibration, it is likely to result in poor stability and waterproof performance of the connector.

[0004] Therefore, based on the above problems, the waterproof performance of existing connectors needs to be improved. Summary of the Invention

[0005] For this reason, the technical problem to be solved by the present invention is to overcome the problem that when existing fiber optic connectors are used in a certain humid environment, moisture and humid air can enter the fiber optic connection range along the connection gap, thereby affecting the connection quality of the fiber optic and resulting in relatively low practicality of existing fiber optic connectors.

[0006] To solve the above technical problems, the present invention provides a waterproof fiber optic connector, comprising: a housing fixing member; an end cap which is sleeved on one end of the housing fixing member; an outer protective sealing gasket which is arranged between the end face where the end cap contacts the housing fixing member; a retaining pin member which is arranged inside the housing fixing member, and an inner sealing rubber ring I is arranged on the end face of the retaining pin member close to the outer side of the housing fixing member; an adapter which is arranged inside the retaining pin member; a sealing tail cap sleeve, on which a sealing lock is connected, a standard fiber optic connector is arranged on the sealing lock, when the sealing lock is inserted into the housing fixing member, the standard fiber optic connector is inserted into the adapter, and an inner sealing rubber ring II is arranged between the sealing lock and the retaining pin member. The waterproof fiber optic connector of the present invention overcomes the possibility that the joint part of the connector housing of the traditional waterproof fiber optic connector is disengaged due to external force or vibration, which easily leads to abnormal problems such as poor stability and waterproof performance of the connector, affecting the optical signal transmission path in the electronic system of related equipment and the working efficiency of construction workers. In order to solve this problem, a simple-structured and high-stability industrial-grade waterproof fiber optic connector is provided. For this simple-structured and high-stability industrial-grade waterproof fiber optic connector, the connection stability and waterproof performance of the housing joint part can both be applied to various special industrial-grade fields through on-site construction, which is plug-and-play, convenient for assembly, quickly deployable, speeds up the construction efficiency, saves construction costs, improves construction quality, and is also convenient for later maintenance.

[0007] In an embodiment of the present invention, the housing fixing member is in the shape of a circular sleeve, and a connecting flange is arranged on the outer wall of the housing fixing member. The cross-section of the connecting flange is rectangular. The cross-section of the outer protective sealing gasket is rectangular, and a circular through hole is arranged at the center of the outer protective sealing gasket. The outer protective sealing gasket is sleeved on the housing fixing member, and one end face of the outer protective sealing gasket is attached to the connecting flange.

[0008] In an embodiment of the present invention, the end cap is in the shape of a circular ring and is sleeved on the outer wall of the housing fixing member.

[0009] In an embodiment of the present invention, a hollow cavity penetrating through both ends of the axis is arranged at the center of the housing fixing member. A plurality of waterproof clamping grooves are arranged on the inner wall of the hollow cavity of the housing fixing member. The waterproof clamping grooves are rectangular grooves and are arranged along the axis direction of the housing fixing member.

[0010] In an embodiment of the present invention, the cross-section of the sealing lock is circular, and a plurality of waterproof protrusions I are arranged on the outer wall of the sealing lock. The cross-section of the retaining pin member is circular, and a plurality of waterproof protrusions II are arranged on the outer wall of the retaining pin member. The plurality of waterproof protrusions I, the plurality of waterproof protrusions II and the plurality of waterproof clamping grooves are arranged in one-to-one correspondence, and the waterproof protrusions I and the waterproof protrusions II are arranged in the corresponding waterproof clamping grooves.

[0011] In one embodiment of the present invention, the first inner sealing rubber ring and the second inner sealing rubber ring are in the shape of circular thin sheets. A number of first convex parts are provided on the outer wall of the first inner sealing rubber ring, and a number of second convex parts are provided on the outer wall of the second inner sealing rubber ring. The first convex parts and the second convex parts are arranged in the waterproof clamping grooves.

[0012] In one embodiment of the present invention, a through hole for the adapter to pass through is provided at the center of the first inner sealing rubber ring.

[0013] In one embodiment of the present invention, a through hole for the adapter to pass through is provided at the center of the second inner sealing rubber ring.

[0014] In one embodiment of the present invention, a through hole for installing the adapter is provided at the center of the pin member.

[0015] In one embodiment of the present invention, a through hole for installing the standard optical fiber connector is provided at the center of the sealing lock.

[0016] The above technical solutions of the present invention have the following beneficial effects compared with the prior art: The waterproof optical fiber connector, the dust-proof and waterproof simple structure housing fixing member and the dust-proof and waterproof optical fiber connector of the present invention have the effect of improving the connection stability and waterproof performance of the joint part of the connector housing, and can be applied to various special industrial-grade fields through on-site construction. They are plug-and-play, easy to assemble, can be quickly deployed, improve the construction efficiency, save the construction cost, improve the construction quality, and are also convenient for later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the content of the present invention easier to be clearly understood, the following further details the present invention according to the specific embodiments of the present invention and in combination with the accompanying drawings, wherein Figure 1 is the assembly of the waterproof optical fiber connector in the preferred embodiment of the present invention Figure 1 ; Figure 2 is the assembly of the waterproof optical fiber connector in the preferred embodiment of the present invention Figure 2 ; Figure 3 is the explosion of the waterproof optical fiber connector in the preferred embodiment of the present invention Figure 1 ; Figure 4 is the explosion of the waterproof optical fiber connector in the preferred embodiment of the present invention Figure 2 ; Figure 5 is the explosion of the waterproof optical fiber connector in the preferred embodiment of the present invention Figure 3 ; Figure 6 is the structural schematic diagram of the housing fixing member in the preferred embodiment of the present invention; Figure 7 Structural schematic of the sealed end cap sleeve and the standard fiber optic connector in the preferred embodiment of the present invention Figure 1 。

[0018] Explanation of the reference numerals in the drawings of the specification: end cap 10, outer protective sealing gasket 11, housing fixing member 12, connecting flange 121, waterproof card slot 122, inner sealing rubber ring I 13, convex part I 131, card pin member 14, waterproof protrusion II 141, adapter 15, inner sealing rubber ring II 16, convex part II 161, sealing lock 17, waterproof protrusion I 171, standard fiber optic connector 19, sealed end cap sleeve 20. Detailed implementation manners

[0019] The present invention will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present invention and be able to implement it, but the embodiments cited are not intended to limit the present invention.

[0020] Refer to Figure 1-7 As shown, the waterproof fiber optic connector of the present invention includes: a housing fixing member 12; an end cap 10 sleeved on one end of the housing fixing member 12; an outer protective sealing gasket 11 disposed between the end face where the end cap 10 contacts the housing fixing member 12; a card pin member 14 disposed inside the housing fixing member 12, and an inner sealing rubber ring I 13 is provided on the end face of the card pin member 14 close to the outside of the housing fixing member 12; an adapter 15 disposed inside the card pin member 14; a sealed end cap sleeve 20, on which a sealing lock 17 is connected, a standard fiber optic connector 19 is provided on the sealing lock 17, when the sealing lock 17 is inserted into the housing fixing member 12, the standard fiber optic connector 19 is inserted into the adapter 15, and an inner sealing rubber ring II 16 is provided between the sealing lock 17 and the card pin member 14. The housing fixing member 12, the adapter 15 and the standard fiber optic connector 19 of the dustproof and waterproof fiber optic connector are detachably connected through a simple sealing lock 17.

[0021] The waterproof optical fiber connector of the present invention includes several parts: an end cap 10, an outer protective sealing gasket 11, a housing fixing member 12, an inner sealing rubber ring I 13, a snap pin member 14, an adapter 15, an inner sealing rubber ring II 16, a sealing lock 17, and a standard optical fiber connector 19. The housing fixing member 12 is provided with mounting fixing holes, and a tightly waterproof inner sealing rubber ring I 13 and an inner sealing rubber ring II 16 are respectively installed in each of the mounting fixing holes. An adapter 15 is equipped in the high-stability snap pin member inside the housing fixing member 12. The inner adapter interface of the adapter 15 facing the inside of the housing fixing member 12 can be connected to the standard optical fiber connector 19, and the interface of the adapter 15 facing the outside of the housing fixing member 12 can be quickly connected to the standard optical fiber connector 19. After the optical cable to be connected, the dustproof and waterproof optical fiber connector, the supporting adapter, and the standard optical fiber connector are connected, an optical signal transmission path is formed.

[0022] In the above structure, the inner side of the simple dustproof and waterproof structure housing is fixed by screws through the positioning holes at the rear end of the housing fixing member 12. The sealing end cap sleeve 20 can adjust the tightness to fit the outer diameter of the optical cable at the tail end of the standard optical fiber connector 19, and can be changed to connect the standard optical fiber connector 19 and be continued in the adapter 15 of the housing fixing member 12. The matching accuracy can reach (0.001 mm), and it is designed to ensure that it can correspond to all the loose part structure dimensions of the LC / SC / FC / type connector heads (2.0, 3.0, 5.0, 7.0) optical cable line optical fiber connectors.

[0023] In the above structure, the housing fixing member 12 is in the shape of a circular sleeve, and a connecting flange 121 is provided on the outer wall of the housing fixing member 12. The cross-section of the connecting flange 121 is rectangular, the cross-section of the outer protective sealing gasket 11 is rectangular, and a circular through hole is provided in the center of the outer protective sealing gasket 11. The outer protective sealing gasket 11 is sleeved on the housing fixing member 12, and one end face of the outer protective sealing gasket 11 is attached to the connecting flange 121. The end cap 10 is in the shape of a circular ring and is sleeved on the outer wall of the housing fixing member 12.

[0024] In the above structure, a hollow cavity penetrating through both ends of the axis is provided at the center of the housing fixing member 12. A plurality of waterproof clamping grooves 122 are provided on the inner wall of the hollow cavity of the housing fixing member 12. The waterproof clamping grooves 122 are rectangular grooves, and the waterproof clamping grooves 122 are arranged along the axis direction of the housing fixing member 12. The cross-section of the sealing lock 17 is circular, and a plurality of first waterproof protrusions 171 are provided on the outer wall of the sealing lock 17. The cross-section of the pin member 14 is circular, and a plurality of second waterproof protrusions 141 are provided on the outer wall of the pin member 14. The plurality of first waterproof protrusions 171, the plurality of second waterproof protrusions 141 and the plurality of waterproof clamping grooves 122 are arranged in one-to-one correspondence, and the first waterproof protrusions 171 and the second waterproof protrusions 141 are arranged in the corresponding waterproof clamping grooves 122. The first inner sealing rubber ring 13 and the second inner sealing rubber ring 16 are in the shape of circular thin sheets. A plurality of first convex portions 131 are provided on the outer wall of the first inner sealing rubber ring 13. A plurality of second convex portions 161 are provided on the outer wall of the second inner sealing rubber ring 16. The first convex portions 131 and the second convex portions 161 are arranged in the waterproof clamping grooves 122. The housing fixing member 12 is detachably provided with an end cap 10 made of dustproof and waterproof silica gel. An uneven notch is provided in the inner ring of the end cap 10 made of dustproof and waterproof silica gel. An outer protective sealing gasket 11 is provided on the end cap 10. The uneven notch provided in the inner ring of the end cap 10 made of dustproof and waterproof silica gel and the outer protective sealing gasket 11 provided on the lower end surface are spliced to form a high-stability dustproof and waterproof protection for the housing fixing member of the dustproof and waterproof simple structure (meeting the water level standard of IP68).

[0025] The housing fixing member 12 can be detachably provided with a highly stable pin member 14 and a standard adapter 15. The highly stable pin member 14 is fixed inside the housing fixing member 12 through a precise sliding concave-convex notch, and the standard adapter 15 is wrapped and clamped inside the highly stable pin member 14. After the fiber optic connector is formed, an optical signal transmission path link is formed. The matching accuracy can reach (0.001 mm), which ensures that it can be designed corresponding to the structural dimensions of LC / SC / FC / standard adapter 22 (single connection).

[0026] In the above structure, a through hole for the adapter 15 to pass through is provided at the center of the first inner sealing rubber ring 13. A through hole for the adapter 15 to pass through is provided at the center of the second inner sealing rubber ring 16. A through hole for installing the adapter 15 is provided at the center of the pin member 14. A through hole for installing the standard fiber optic connector 19 is provided at the center of the sealing lock 17. The through holes on the first inner sealing rubber ring 13, the pin member 14, the adapter 15 and the second inner sealing rubber ring 16 are on the same straight line.

[0027] The waterproof optical fiber connector of the present invention, through a simple-structured and highly stable industrial-grade waterproof optical fiber connector, can achieve the effects of connection stability and waterproof performance at the joint of the outer shell, and can be applied to various special industrial-grade fields at the construction site. It is plug-and-play, easy to assemble, quickly deployable, which speeds up the construction efficiency, saves construction costs, improves construction quality, and is also convenient for later maintenance.

[0028] Obviously, the above embodiments are merely examples for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

Claims

1. A waterproof optical fiber connector, characterized in that: include: Housing fixings; An end cap is sleeved on one end of the housing fixing member; An outer sealing rubber pad is arranged between the end faces of the end cap and the outer shell fixing member in contact; A bayonet member, which is arranged inside the housing fixing member, and an inner sealing rubber ring 1 is arranged on the end surface of the bayonet member close to the outer side of the housing fixing member; an adapter disposed within the bayonet member; A sealing tail cap sleeve is connected to a sealing lock buckle, on which a standard optical fiber connector is arranged. When the sealing lock buckle is inserted into the housing fixing part, the standard optical fiber connector is inserted into the adapter. An inner sealing rubber ring 2 is arranged between the sealing lock buckle and the bayonet part.

2. The waterproof optical fiber connector according to claim 1, characterized in that: The outer shell fixing piece is in the shape of a circular sleeve, and a connecting flange is provided on the outer wall of the outer shell fixing piece, the cross-section of the connecting flange is rectangular, the cross-section of the outer protective sealing gasket is rectangular, and a circular through hole is provided in the center of the outer protective sealing gasket, the outer protective sealing gasket is sleeved on the outer shell fixing piece, and the outer protective sealing gasket is fitted with one of the end faces of the connecting flange.

3. The waterproof optical fiber connector according to claim 2, characterized in that: The end cap is in a circular ring shape and is sleeved on the outer wall of the housing fixing member.

4. The waterproof optical fiber connector according to claim 2, characterized in that: A hollow cavity penetrating both ends of the axis is provided at the center of the housing fixing piece, and a plurality of waterproof card slots are provided on the inner wall of the hollow cavity of the housing fixing piece. The waterproof card slots are rectangular slots and are arranged along the axis direction of the housing fixing piece.

5. The waterproof optical fiber connector according to claim 4, characterized in that: The cross-section of the sealing lock buckle is circular, and a plurality of waterproof protrusions 1 are provided on the outer wall of the sealing lock buckle. The cross-section of the bayonet piece is circular, and a plurality of waterproof protrusions 2 are provided on the outer wall of the bayonet piece. The plurality of waterproof protrusions 1, the plurality of waterproof protrusions 2 and the plurality of waterproof card slots are arranged in a one-to-one correspondence, and the waterproof protrusions 1 and the waterproof protrusions 2 are arranged in the corresponding waterproof card slots.

6. The waterproof optical fiber connector according to claim 5, characterized in that: The inner sealing rubber ring 1 and the inner sealing rubber ring 2 are in the shape of circular thin sheets. The outer wall of the inner sealing rubber ring 1 is provided with a plurality of convex parts 1, and the outer wall of the inner sealing rubber ring 2 is provided with a plurality of convex parts 2. The convex parts 1 and 2 are arranged in the waterproof card slot.

7. The waterproof optical fiber connector according to claim 1, characterized in that: A through hole for the adapter to pass through is arranged at the center of the inner sealing rubber ring.

8. The waterproof optical fiber connector according to claim 1, characterized in that: A through hole for the adapter to pass through is provided at the center of the second inner sealing rubber ring.

9. The waterproof optical fiber connector according to claim 1, characterized in that: A through hole for installing an adapter is provided at the center of the bayonet member.

10. The waterproof optical fiber connector according to claim 1, characterized in that: A through hole for installing a standard optical fiber connector is provided at the center of the sealing lock buckle.

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