LC adapter and optical transmission device

Abstract

The utility model discloses an LC adapter and an optical transmission device, the LC adapter comprises a housing and a dustproof cover, one end of the housing is provided with a first accommodating groove, two opposite side walls of the first accommodating groove are provided with lap joint projections, and one surface of the lap joint projections facing the groove bottom of the first accommodating groove is set as a lap joint surface; one end of the dustproof cover is rotationally mounted on the groove wall of the first containing groove, the outer side face of the dustproof cover abuts against the lap joint face, and the peripheral side face of the dustproof cover is in clearance fit with the groove wall of the first containing groove; an assembling protrusion is formed on the portion, close to the rotating axis of the dustproof cover, of the lap joint face, an assembling concave part is arranged on the edge of the dustproof cover corresponding to the assembling protrusion, and the assembling protrusion is matched with the assembling concave part. In this way, the outer side face of the dustproof cover is attached to the lap joint protrusion, the peripheral side face of the dustproof cover is attached to the groove wall of the first containing groove, external interference light and dust are difficult to enter the groove from a bending gap between the dustproof cover and the groove wall of the first containing groove, and the dustproof effect and the light blocking effect are better.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber adapters, in particular to an LC adapter and optical transmission equipment. Background Art

[0002] LC adapters are used to connect optical transmission equipment such as fiber optic transceivers and fiber optic switches. They feature a slot for inserting the fiber end, which is fitted with a dust cover. This not only protects against dust but also blocks light, preventing it from entering the LC adapter and potentially interfering with the optical signal.

[0003] However, there is inevitably a gap between the dust cover of the existing LC adapter and the slot wall of the receiving slot, so that external dust and light can enter the receiving slot through the gap, resulting in poor dustproof and light-blocking effects. Utility Model Content

[0004] The main purpose of the utility model is to provide an LC adapter, aiming to improve the protection performance.

[0005] To achieve the above objectives, the present invention provides an LC adapter, comprising:

[0006] A housing, wherein a first receiving groove is formed at one end of the housing, overlapping protrusions are formed on opposite side walls of the first receiving groove, a side of the overlapping protrusion facing the bottom of the first receiving groove is configured as an overlapping surface, and a peripheral side surface of the dust cover is gap-fitted with a groove wall of the first receiving groove;

[0007] a dust cover, one end of which is rotatably mounted on the wall of the first receiving groove, the outer surface of the dust cover abutting against the overlapping surface, and the peripheral side surface of the dust cover being in clearance fit with the wall of the first receiving groove;

[0008] An assembly protrusion is formed on a portion of the overlap surface close to the rotation axis of the dust cover, and an assembly recess is provided on the edge of the dust cover corresponding to the assembly protrusion, and the assembly protrusion cooperates with the assembly recess.

[0009] In some embodiments of the present invention, a rotating shaft is provided at one end of the dust cover and is rotatably connected to the groove wall of the first receiving groove. A protective platform is protruding from the groove wall of the first receiving groove on one side where the rotating shaft is installed, and the protective platform is located on the outside of the dust cover.

[0010] In some embodiments of the present invention, a dustproof rib is provided on the side of the outer surface of the dustproof cover corresponding to the rotating shaft, and when the dustproof cover is in a closed state, the dustproof rib abuts against the protective platform.

[0011] In some embodiments of the present invention, the top surface of the protection platform is flush with the top surface of the dust-proof rib.

[0012] In some embodiments of the present invention, the overlapping protrusion is provided with a calibration groove, the calibration groove is arranged close to the protective platform, one side of the calibration groove passes through to the slot of the first accommodating groove, and the calibration groove and the assembly protrusion are positioned relative to each other in the groove depth direction of the first accommodating groove.

[0013] In some embodiments of the present invention, two opposite sides of the dust cover are protruded to form the rotating shaft.

[0014] In some embodiments of the present invention, the shell includes a shell and a buckle cover, the first accommodating groove penetrates a part of one side where the rotating shaft is installed to form an installation opening, the first accommodating groove is adjacent to the two side groove walls of the installation opening and has an axial hole, one side of the axial hole penetrates to the installation opening, and the buckle cover is assembled on the installation opening.

[0015] In some embodiments of the present invention, the LC adapter further includes a reset member, which is mounted on the housing and acts on the dust cover to make the dust cover tend to close.

[0016] In some embodiments of the present invention, the reset member is a reset plate, one end of the reset plate is installed between the shell and the buckle cover, and the other end of the reset plate abuts against the inner side surface of the dust cover.

[0017] The present invention further provides an optical transmission device, the optical transmission device including the LC adapter, the LC adapter including:

[0018] A housing, wherein a first receiving groove is formed at one end of the housing, overlapping protrusions are formed on opposite side walls of the first receiving groove, and a side of the overlapping protrusion facing the bottom of the first receiving groove is configured as an overlapping surface;

[0019] A dust cover is provided with a rotating shaft at one end of the dust cover and is rotatably mounted on the groove wall of the first accommodating groove, and the outer side surface of the dust cover abuts against the overlapping surface.

[0020] In the present invention, a first receiving slot is formed at one end of the housing of the LC adapter. Two opposing walls of the first receiving slot are formed with overlapping protrusions, with the overlapping protrusions facing the bottom of the first receiving slot being provided with overlapping surfaces. A rotating shaft is provided at one end of the dust cover and is rotatably mounted on the slot wall of the first receiving slot. The outer side of the dust cover abuts the overlapping surface, and the peripheral side of the dust cover is gap-fitted with the slot wall of the first receiving slot. Thus, the outer side of the dust cover fits in contact with the overlapping protrusion, and the peripheral side of the dust cover fits in contact with the slot wall of the first receiving slot. External interfering light and dust are unlikely to enter the slot through the curved gap between the dust cover and the slot wall of the first receiving slot, resulting in improved dustproof and light-blocking effects. Furthermore, a mounting recess is provided on the portion of the dust cover near the rotation axis to engage with the mounting protrusion. This creates a larger gap between the dust cover and the overlapping protrusion, further enhancing the dustproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 This is a schematic structural diagram of an embodiment of the LC adapter of the present utility model;

[0023] Figure 2 for Figure 1 A partial enlarged view of point E in the middle;

[0024] Figure 3 This is a cross-sectional view of an embodiment of the LC adapter of the present invention at one viewing angle;

[0025] Figure 4 for Figure 3 A partial enlarged view of point D in the middle;

[0026] Figure 5 This is a cross-sectional view of an embodiment of the LC adapter of the present invention from another perspective;

[0027] Figure 6 for Figure 5 A partial enlarged view of point A in the middle;

[0028] Figure 7 This is a schematic structural diagram of an embodiment of a dust cover in an LC adapter of the present invention.

[0029] Description of Figure Numbers:

[0030]

[0031]

[0032] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0036] The present invention provides an LC adapter 100, comprising a housing 10 and a dust cover 20. A first receiving slot 101 is defined at one end of the housing 10. Two opposing walls of the first receiving slot 101 are formed with overlapping protrusions 107. A surface of the overlapping protrusion 107 facing the bottom of the first receiving slot 101 is provided with an overlapping surface 108. A rotating shaft 21 is provided at one end of the dust cover 20 and is rotatably mounted on the slot wall of the first receiving slot 101. The outer side surface of the dust cover 20 abuts against the overlapping surface 108, and the circumferential side surface of the dust cover 20 is loosely fitted with the slot wall of the first receiving slot 101. An assembly protrusion 1081 is formed on the portion of the overlapping surface 108 near the rotation axis of the dust cover 20. An assembly recess 24 is provided on the edge of the dust cover 20 corresponding to the assembly protrusion, and the assembly protrusion 1081 engages with the assembly recess 24.

[0037] The housing 10 and the dust cover 20 are generally made of plastic, specifically polyethylene (PE), polypropylene (PP), polycarbonate (PC), etc., which have good mechanical properties, heat resistance and corrosion resistance.

[0038] The first receiving groove 101 is used to accommodate an optical fiber end and to mount other components such as the dust cover 20 and the reset member. The optical fiber end extends into the notch of the first receiving groove 101. In some embodiments of the present invention, the housing 11 is further provided with a second receiving groove 103 on a side opposite the first receiving groove 101. A fiber channel 104 is formed that connects to the bottom of the first receiving groove 101. The ends of the fiber channel 104 respectively connect to the bottom of the first receiving groove 101 and the bottom of the second receiving groove 103, thereby enabling connection of two optical fiber ends.

[0039] In the housing 10 , the first receiving slots 101 , the second receiving slots 103 and the optical fiber channels 104 may be provided in one group, two groups, three groups or more groups, depending on the specific situation and are not specifically limited here.

[0040] The above-mentioned overlapping surface 108 is generally set at an angle, and the overlapping surface 108 is inclined from the direction away from the rotating shaft 21 toward the bottom of the first accommodating groove 101. In this way, after the dust cover 20 overlaps with the overlapping surface 108, the dust cover 20 is inclined toward the groove, which can play a guiding role when the optical fiber end is inserted, and the plugging is smooth.

[0041] In the present invention, the LC adapter 100 has a first receiving slot 101 defined at one end of the housing 10. Two opposing walls of the first receiving slot 101 are formed with overlapping protrusions 107. The overlapping protrusions 107, facing the bottom of the first receiving slot 101, form overlapping surfaces 108. A dust cover 20 has a rotating shaft 21 disposed at one end and is rotatably mounted on the wall of the first receiving slot 101. The outer side of the dust cover 20 abuts against the overlapping surfaces 108. In this way, the outer side surface of the dust cover 20 fits with the overlapping protrusion 107, and the peripheral side surface of the dust cover 20 fits with the groove wall of the first accommodating groove 101. It is difficult for external interfering light and dust to enter the groove from the bending gap between the dust cover 20 and the groove wall of the first accommodating groove 101, and the dust-proof effect and light-blocking effect are better. In addition, an assembly recess 24 is provided for the part of the dust cover 20 close to the rotation axis to cooperate with the assembly protrusion 1081, so that there is more gap between the dust cover 20 and the overlapping protrusion 107, and the dust-proof effect is further improved.

[0042] In some embodiments of the present invention, a protective platform 109 is provided on the side of the first receiving groove 101 where the rotating shaft 21 is mounted. The protective platform 109 is located outside the rotating shaft 21. This configuration protects the rotating shaft 21 of the dust cover 20, preventing the rotating shaft 21 from being pressed against by the optical fiber end when the optical fiber end is inserted, thereby preventing the rotating shaft 21 from being deformed or even broken due to radial pressure.

[0043] Furthermore, in some embodiments of the present invention, a dustproof rib 23 is provided on the outer surface of the dust cover 20 on the side corresponding to the rotating shaft 21. When the dust cover 20 is closed, the dustproof rib 23 abuts the protective platform 109. This abutment between the dustproof rib 23 and the protective platform 109 prevents dust from accumulating in a gap between the protective platform 109 and the dust cover 20, and prevents dust from entering the assembly gap between the rotating shaft 21 and the wall of the first receiving slot 101. This further improves the dustproof performance of the LC adapter 100.

[0044] In some embodiments of the present invention, the top surface of the protective platform 109 is flush with the top surface of the dust-proof rib 23. This arrangement further avoids the problem of dust accumulating between the protective platform 109 and the dust cover 20 on the top of the dust-proof rib 23, which is difficult to clean. It also prevents dust from falling into the gap between the rotating shaft 21 and the protective platform 109 during the rotation of the dust cover 20. Furthermore, it does not affect the normal insertion of the optical fiber end.

[0045] According to the IEC (International Electrotechnical Commission) standard (i.e., the standard established by the International Electrotechnical Commission), a calibration groove 1082 is provided at the notch of the first receiving slot 101. In some embodiments of the present invention, the overlapping protrusion 107 is provided with a calibration groove 1082. The calibration groove 1082 is located near the protective platform 109. One side of the calibration groove 1082 extends through the notch of the first receiving slot 101. The calibration groove 1082 and the assembly protrusion 1081 are aligned in the depth direction of the first receiving slot 101. This makes the structure more compact.

[0046] In some embodiments of the present invention, two opposing sides of the dust cover 20 are provided with protrusions forming rotating shafts 21. This configuration, on the one hand, allows the dust cover 20 to be directly manufactured through processes such as hot pressing or 3D printing, eliminating the need to separately manufacture and assemble the dust cover 20 and rotating shafts 21, making manufacturing more convenient. Furthermore, the dust cover 20 requires fewer steps during assembly, is less difficult, and achieves higher assembly efficiency. Furthermore, the dust cover 20 occupies less space, thereby improving the compactness of the LC adapter 100.

[0047] Furthermore, in some embodiments of the present invention, the housing 10 includes a shell 11 and a buckle cover 12, and the first accommodating groove 101 partially penetrates one side of the mounting shaft 21 to form an installation opening 111. The first accommodating groove 101 is adjacent to the two side groove walls of the installation opening 111 and is provided with an axial hole, and one side of the axial hole penetrates to the installation opening 111, and the buckle cover 12 is assembled on the installation opening 111.

[0048] Through the above scheme, the components in the first accommodating groove 101 are generally installed into the interior thereof through the installation opening 111. During assembly, the rotating shaft 21 of the dust cover 20 can be assembled into the shaft groove 105 first, and then the buckle cover 12 can be installed. The installation is convenient. The buckle cover 12 is not only used to seal the installation opening 111, but also used to limit the dust cover 20, eliminating the need for an extra dust cover 20 limiting structure, thus killing two birds with one stone.

[0049] The buckle cover 12 can be mounted on the housing 11 in various ways. In some embodiments of the present invention, an assembly opening 113 and a buckle interface 118 are formed on two opposite edges of the mounting opening 111. A latching tongue 121 and an elastic buckle 122 are respectively provided at opposite ends of the buckle cover 12. The latching tongue 121 is inserted into the assembly opening 113, and the elastic buckle 122 is engaged with the buckle interface 118. Thus, when mounting the buckle cover 12 on the housing 11, the latching tongue 121 at one end of the buckle cover 12 is first inserted into the assembly opening 113, and then the other end of the buckle cover 12 is closed, so that the elastic buckle 122 engages with the buckle interface 118. In this way, the two ends of the buckle cover 12 are mounted sequentially, making assembly and disassembly easier and enabling one-step installation. Furthermore, the rate of component damage due to assembly is low, saving production material costs and assembly time costs.

[0050] In some embodiments of the present invention, the LC adapter 100 further includes a reset element, which is mounted on the housing 10 and acts on the dust cover 20 to close the dust cover 20. The reset element may be a spring, a torsion spring, an elastic sheet, or the like.

[0051] In some embodiments of the present invention, the reset member is a reset plate 30, one end of which is mounted between the housing 11 and the buckle cover 12, and the other end of which abuts against the inner side of the dust cover 20. In this way, the reset plate 30 not only effectively resets the dust cover 20, but also takes up less space in the first receiving slot 101.

[0052] The fixed end of the above-mentioned reset plate 30 can be fixed to the side of the shell 11 close to the rotating shaft 21, or it can be fixed to the side of the shell 11 away from the rotating shaft 21. The shape of the reset plate 30 is generally set to be curved. The curvature of the reset plate 30 is set according to the rotation angle of the dust cover 20 from the open state to the closed state, and no specific limitation is made here.

[0053] In some embodiments of the present invention, the dust cover 20 is provided with an inner recess 22 toward the optical fiber channel 104. The inner recess 22 is used to avoid the optical fiber. When the optical fiber end is inserted into the first receiving groove 101, the outer side of the optical fiber end abuts against the dust cover 20, and the optical fiber is spaced apart from the inner recess 22.

[0054] The present invention also provides an optical transmission device, which includes the LC adapter 100. Since the optical transmission device adopts all the solutions in all the above embodiments, it has at least all the technical effects brought by the technical solutions in all the above embodiments, which will not be described in detail here.

[0055] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An LC adapter, characterized in that: include: A shell, wherein a first receiving groove is formed at one end of the shell, overlapping protrusions are formed on opposite side walls of the first receiving groove, and a side of the overlapping protrusion facing the bottom of the first receiving groove is set as an overlapping surface; A dust cover, one end of which is rotatably mounted on the groove wall of the first receiving groove, the outer surface of the dust cover abuts against the overlap surface, and the peripheral side surface of the dust cover is gap-matched with the groove wall of the first receiving groove; A portion of the overlap surface close to the rotation axis of the dust cover is formed with an assembly protrusion, and an assembly recess is provided at the edge of the dust cover corresponding to the assembly protrusion, and the assembly protrusion cooperates with the assembly recess.

2. The LC adapter according to claim 1, characterized in that: A rotating shaft is disposed at one end of the dust cover and is rotatably connected to the groove wall of the first receiving groove. A protective platform is protruded from the groove wall of the first receiving groove on one side where the rotating shaft is installed. The protective platform is located on the outer side of the dust cover.

3. The LC adapter according to claim 2, characterized in that: A dustproof rib is disposed on a side of the outer surface of the dustproof cover corresponding to the rotating shaft. When the dustproof cover is in a closed state, the dustproof rib abuts against the protective platform.

4. The LC adapter according to claim 3, characterized in that: The top surface of the protection platform is flush with the top surface of the dustproof rib.

5. The LC adapter according to claim 2, characterized in that: The opposite sides of the dust cover are convexly provided to form the rotating shaft.

6. The LC adapter according to claim 2, characterized in that: The overlapping protrusion is provided with a calibration groove, the calibration groove is arranged close to the protective platform, one side of the calibration groove penetrates through the notch of the first accommodating groove, and the calibration groove and the assembly protrusion are relatively positioned in the groove depth direction of the first accommodating groove.

7. The LC adapter according to any one of claims 2 to 6, characterized in that: The shell includes a shell and a buckle cover. The first accommodating groove penetrates through a side portion of the rotating shaft to form an installation opening. The first accommodating groove is adjacent to the two side groove walls of the installation opening and is provided with an axial hole. One side of the axial hole penetrates through the installation opening, and the buckle cover is assembled on the installation opening.

8. The LC adapter according to claim 7, characterized in that: The LC adapter further comprises a reset sheet, one end of which is installed between the housing and the buckle cover, and the other end of which abuts against the inner side surface of the dust cover so that the dust cover has a tendency to close.

9. The LC adapter according to any one of claims 1 to 6, characterized in that: The outer side of the dust cover is provided with an inner recessed portion to avoid the optical fiber.

10. An optical transmission device, characterized in that: The optical transmission device comprises the LC adapter according to any one of claims 1 to 9.

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