LC polarity interchange connector

Abstract

The utility model relates to the technical field of optical communication transmission, in particular to an LC polarity interchange connector. According to the LC polarity interchanging connector, two connecting units are arranged at the front end of the connector, the connector further comprises a connecting base and a tail sleeve, the two connecting units are movably fixed to the front portion of the connecting base, the tail sleeve is fixed to the rear portion of the connecting base, an optical fiber is fixed in the connector and extends out of the tail end of the connector from the tail sleeve, and the optical fiber is connected with the connecting base. The connecting base comprises an upper cover and a lower cover which can be separated and mutually covered, and the upper cover and the lower cover are in a separated state so that the positions of the two connecting units can be exchanged. According to the utility model, the connecting seat is designed to be in a mode that the upper cover and the lower cover are mutually covered, and the specific detailed design of the upper cover and the lower cover is combined, so that the opening structure of one connector is comprehensively realized, the interchange of the two connecting units can be realized through simple operation, the connector does not need to be pulled out or broken in, and wiring and line changing are very convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical communication transmission technical field, in particular to a LC polarity exchange connector. BACKGROUND

[0002] LC type connector is the optical fiber connector type that famous Bell research and development, adopts the modularization jack (RJ) latch mechanism made of convenient operation. The size of the pin and sleeve it uses is half of the size used by ordinary SC, FC, etc. It is 1.25mm. In this way, the density of optical fiber connectors in the optical fiber distribution frame can be improved. At present, in the single mode SFF aspect, the LC type connector has actually occupied the dominant position, and the application in the multimode aspect also grows rapidly.

[0003] The existing LC optical fiber connector, such as the technical content disclosed in Chinese patent CN211554385U: a push-pull tail sleeve type LC optical fiber connector, comprising: a plurality of front frames, a plurality of ferrules, a plurality of tail handles, a plurality of springs, a plurality of stop rings, a pressing piece, a rear frame, a tail sleeve; the spring is sleeved on the outer side of the tail handle, the ferrule is inserted into the middle part of the tail handle, the stop ring is sleeved on the outer side of the spring, the rear frame is formed with a plurality of connection cavities in parallel in the middle part, one end of the stop ring is fixed in the connection cavity, the other end is clamped and fixed on the front frame, the rear frame can be inserted into the tail sleeve, a spring piece is arranged on the front frame, the front frame is inserted into the interface of the connection equipment and positioned by the spring piece, the middle part of the pressing piece is rotationally fixed on the upper surface of the rear frame, the front end cooperates with the spring piece, and the rear end is clamped and fixed with the tail sleeve. By pulling the tail sleeve backward, the pressing piece is driven to move backward, the pressing piece will apply a downward pressure to the spring piece, and the connector is pulled out of the connection equipment interface.

[0004] Although the above technical scheme can realize lateral pulling, especially suitable for dense integrated wiring conditions, the connector is pulled out laterally, but in the case of two polarity connectors, the two polarities cannot be quickly replaced. UTILITY MODEL CONTENT

[0005] In order to overcome the defects of the prior art, the utility model provides a LC polarity exchange connector which has a simple structure, two connection units can be interchanged, and has an open structure. In order to solve the above technical problems, the utility model provides the following technical scheme:

[0006] The utility model provides a kind of LC polarity exchange connector, the front end of the connector is equipped with two connection units, the connector further includes connecting seat and tail cover, two connection units are movably fixed in the front of connecting seat, and tail cover is fixed in the rear of connecting seat, the connector is fixed with optical fiber, and optical fiber is stretched from tail cover to the tail end of the connector, the connecting seat includes separable upper cover and lower cover, the upper cover and the lower cover are in the separated state to make the position of two connection units interchanged.

[0007] On the basis of the above technical scheme, the utility model further can adopt the following further technical scheme:

[0008] The front part of the upper cover is equipped with the first clamping part, the first clamping part includes two first clamping units arranged side by side, the first clamping unit includes first front block, first rear block, first left side block and first right side block, the adjacent first left side block and first right side block of two first clamping units are connected to each other to form a first middle column.

[0009] The first front block is equipped with first front arc slot, the first rear block is equipped with first rear arc slot, and the radian of the first front arc slot is greater than the radian of the first rear arc slot.

[0010] The front part of the lower cover is equipped with the second clamping part, the second clamping part includes two second clamping units arranged side by side, the second clamping unit includes second front block, second rear block, second left side block and second right side block, the adjacent second left side block and second right side block of two second clamping units are connected to each other to form a second middle column.

[0011] The second front block is equipped with second front arc slot, the second rear block is equipped with second rear arc slot, and the radian of the second front arc slot is greater than the radian of the second rear arc slot,

[0012] The both ends of the first front arc slot are equipped with steps, the both ends of the second front arc slot are equipped with protruding blocks, when the upper cover and the lower cover are covered each other, the protruding blocks are pressed on the steps.

[0013] The first middle column is provided with positioning hole, and the second middle column is provided with protruding column, when the upper cover and the lower cover are covered each other, the protruding column is clamped in the positioning hole.

[0014] The tail end of the upper cover is equipped with two mutually separated pressing seats, the outer side of two pressing seats is equipped with positioning slot, the tail end of the lower cover is equipped with two mutually separated pressing pieces, the outer side of two pressing pieces is equipped with positioning column, when the upper cover and the lower cover are covered each other, two pressing pieces are respectively pressed on two pressing seats, and two positioning columns are respectively clamped in two positioning slots.

[0015] The connecting unit comprises a front frame and a stop ring, the stop ring is inserted into the rear end of the front frame, a tail of the stop ring is provided with a clamping ring groove, when the connecting unit is assembled into the connecting seat, upper and lower ends of the clamping ring groove are clamped at the first front arc-shaped groove and the second front arc-shaped groove respectively; the front frame is provided with a first elastic sheet, an outer end of the first elastic sheet is provided with an upwardly protruding clamping strip, the upper cover is provided with a second elastic sheet, when the connecting unit and the connecting seat are assembled with each other, the clamping strip is clamped at the outer end of the second elastic sheet.

[0016] The connecting unit further comprises a tail handle, a small plug core, a plug core, a spring and a connecting sleeve, the small plug core is inserted into the front part of the tail handle and surrounded by the connecting sleeve, the plug core is inserted into the rear part of the tail handle, the spring is sleeved outside the plug core, tail ends of the plug core and the spring are inserted into the stop ring to be surrounded by the stop ring; the tail sleeve comprises a connecting head, a sleeve ring and a coil, the connecting head is fixed to the tail end of the connecting seat and the tail of the connecting head protrudes from the connecting seat, the sleeve ring is sleeved at the part where the connecting head protrudes from the connecting seat, and the coil is sleeved outside the sleeve ring.

[0017] Compared with the prior art, the utility model can achieve the beneficial effects that:

[0018] The utility model discloses a connecting seat is designed as the mode that upper cover and lower cover cover each other, and the specific detail design of upper cover and lower cover is combined, and the opening structure of a connecting head is comprehensively realized, the exchange of two connecting units can be realized through simple operation, and the connecting head itself does not need to be pulled out or broken, and wiring and rewiring are very convenient. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the upper view structural diagram of the utility model of a kind of LC polarity exchange connecting head.

[0020] Figure 2 It is the upper view explosion drawing of the utility model of a kind of LC polarity exchange connecting head.

[0021] Figure 3 It is the lower view structural diagram of the utility model of a kind of LC polarity exchange connecting head.

[0022] Figure 4 It is the upper cover internal structure schematic diagram of the utility model of a kind of LC polarity exchange connecting head.

[0023] Figure 5 It is the assembly state internal structure schematic diagram of the utility model of a kind of LC polarity exchange connecting head.

[0024] Among them, the connecting unit 1, front frame 11, first elastic piece 111, retaining strip 112, second elastic piece 113, stop ring 12, retaining ring groove 121, tail handle 13, small insert 14, insert 15, spring 16, connecting sleeve 17, connecting seat 2, top cover 21, first front stop 211, first rear stop 212, first left side stop 213, first right side stop 214, first central column 215, first front arc groove 216, first... Rear arc groove 217, step 218, positioning hole 219, lower cover 22, second front stop 221, second rear stop 222, second left side stop 223, second right side stop 224, second central column 225, second front arc groove 226, second rear arc groove 227, protrusion 228, protrusion 229, tail sleeve 3, connector 31, collar 32, coil 33, top pressure seat 41, positioning groove 42, top pressure plate 43, positioning post 44. Detailed Implementation

[0025] The present invention provides an LC polarity interchangeable connector in conjunction with the accompanying drawings.

[0026] Example 1, as Figures 1-6 As shown, an LC polarity interchangeable connector has two connecting units 1 at the front end of the connector. The connector also includes a connector base 2 and a tail sleeve 3. The two connecting units 1 are movably fixed to the front of the connector base 2, and the tail sleeve 3 is fixed to the rear of the connector base 2. An optical fiber is fixed inside the connector and extends from the tail sleeve 3 to the tail end of the connector.

[0027] The connecting seat 2 includes a detachable upper cover 21 and a lower cover 22 that can be closed to each other. The upper cover 21 and the lower cover 22 are separated to allow the positions of the two connecting units 1 to be interchanged.

[0028] Furthermore, the front of the upper cover 21 is provided with a first snap-fit ​​part, which includes two first snap-fit ​​units arranged side by side. The first snap-fit ​​unit includes a first front stop 211, a first rear stop 212, a first left side stop 213 and a first right side stop 214. The adjacent first left side stop 213 and first right side stop 214 of the two first snap-fit ​​units are connected to each other to form a first central column 215.

[0029] Furthermore, the first front windshield 211 is provided with a first front arc-shaped groove 216, and the first rear windshield 212 is provided with a first rear arc-shaped groove 217. The curvature of the first front arc-shaped groove 216 is greater than the curvature of the first rear arc-shaped groove 217.

[0030] Further, the front part of the lower cover 22 is provided with a second clamping part, the second clamping part comprises two second clamping units arranged side by side, each second clamping unit comprises a second front block 221, a second rear block 222, a second left side block 223 and a second right side block 224, the adjacent second left side blocks 223 and the second right side blocks 224 of the two second clamping units are connected to each other to form a second center column 225.

[0031] Further, the second front block 221 is provided with a second front arc-shaped groove 226, the second rear block 222 is provided with a second rear arc-shaped groove 227, the curvature of the second front arc-shaped groove 226 is greater than the curvature of the second rear arc-shaped groove 227,

[0032] Further, the two ends of the first front arc-shaped groove 216 are provided with steps 218, the two ends of the second front arc-shaped groove 226 are provided with protruding blocks 228, when the upper cover 21 and the lower cover 22 are covered with each other, the protruding blocks 228 are pressed on the steps 218.

[0033] Further, the first center column 215 is provided with a positioning hole 219, the second center column 225 is provided with a protruding column 229, when the upper cover 21 and the lower cover 22 are covered with each other, the protruding column 229 is clamped in the positioning hole 219.

[0034] Further, the tail end of the upper cover 21 is provided with two separate pressing seats 41, the outer sides of the two pressing seats 41 are provided with positioning grooves 42, the tail end of the lower cover 22 is provided with two separate pressing pieces 43, the outer sides of the two pressing pieces 43 are provided with positioning columns 44, when the upper cover 21 and the lower cover 22 are covered with each other, the two pressing pieces 43 are pressed against the two pressing seats 41 respectively, and the two positioning columns 44 are clamped in the two positioning grooves 42 respectively.

[0035] Further, the connecting unit 1 comprises a front frame 11 and a stop ring 12, the stop ring 12 is inserted into the rear end of the front frame 11, the tail part of the stop ring 12 is provided with a clamping ring groove 121, when the connecting unit 1 is assembled into the connecting seat 2, the upper and lower ends of the clamping ring groove 121 are clamped at the first front arc-shaped groove 216 and the second front arc-shaped groove 226 respectively.

[0036] Further, the front frame 11 is provided with a first elastic piece 111, the outer end of the first elastic piece 111 is provided with an upwardly protruding clamping strip 112, the upper cover 21 is provided with a second elastic piece 113, when the connecting unit 1 and the connecting seat 2 are assembled with each other, the clamping strip 112 is clamped on the outer side of the second elastic piece 113.

[0037] Further, the connecting unit 1 further comprises a tail handle 13, a small plug core 14, a plug core 15, a spring 16 and a connecting sleeve 17, the small plug core 14 is inserted into the front part of the tail handle 13, the small plug core 14 is surrounded by the connecting sleeve 17, the plug core 15 is inserted into the rear part of the tail handle 13, the spring 16 is sleeved outside the plug core 15, and the tail end of the plug core 15 and the spring 16 is inserted into the stop ring 12 to be surrounded by the stop ring 12.

[0038] Further, the tail sleeve 3 comprises a connecting head 31, a sleeve ring 32 and a coil 33, the connecting head 31 is fixed to the tail end of the connecting base 2, the tail part of the connecting head 31 is protruded from the connecting base 2, the sleeve ring 32 is sleeved on the connecting head 31 protruded from the connecting base 2, and the coil 33 is sleeved outside the sleeve ring 32.

[0039] The utility model has carried out the illustration and the description through the reference preferred embodiment, but, the professional ordinary skilled man should understand, in the scope of the patent claim, can make various changes in form and detail.

Claims

1. An LC polarity interchanging connector, the front end of the connector is provided with two connecting units, characterized in that The connecting head further comprises a connecting seat and a tail sleeve, the two connecting units are movably fixed to the front part of the connecting seat, and the tail sleeve is fixed to the rear part of the connecting seat, an optical fiber is fixed in the connecting head, and the optical fiber extends out of the tail end of the connecting head from the tail sleeve, the connecting seat comprises a separable upper cover and a lower cover which are overlapped with each other, and the upper cover and the lower cover are separated to exchange the positions of the two connecting units.

2. The LC polarity interchanging connector of claim 1, wherein The front part of the upper cover is provided with a first clamping part, the first clamping part comprises two first clamping units arranged side by side, the first clamping unit comprises a first front stop, a first rear stop, a first left side stop and a first right side stop, and the adjacent first left side stop and first right side stop of the two first clamping units are connected with each other to form a first middle column.

3. An LC polarity interchanging connector according to claim 2, characterized in that The first front stop is provided with a first front arc-shaped groove, the first rear stop is provided with a first rear arc-shaped groove, and the curvature of the first front arc-shaped groove is greater than that of the first rear arc-shaped groove.

4. The LC polarity interchanging connector of claim 3, wherein The front part of the lower cover is provided with a second clamping part, the second clamping part comprises two second clamping units arranged side by side, the second clamping unit comprises a second front stop, a second rear stop, a second left side stop and a second right side stop, and the adjacent second left side stop and second right side stop of the two second clamping units are connected with each other to form a second middle column.

5. An LC polarity interchanging connector according to claim 4, characterized in that The second front stop is provided with a second front arc-shaped groove, the second rear stop is provided with a second rear arc-shaped groove, and the curvature of the second front arc-shaped groove is greater than that of the second rear arc-shaped groove.

6. An LC polarity interchanging connector according to claim 5, characterized in that The two ends of the first front arc-shaped groove are provided with steps, the two ends of the second front arc-shaped groove are provided with protrusions, and when the upper cover and the lower cover are overlapped with each other, the protrusions are pressed on the steps.

7. The LC polarity interchanging connector of claim 5, wherein The first middle column is provided with a positioning hole, and the second middle column is provided with a protruding column, and when the upper cover and the lower cover are overlapped with each other, the protruding column is clamped in the positioning hole.

8. The LC polarity interchanging connector of claim 1, wherein The tail end of the upper cover is provided with two separate pressing seats, the outer sides of the two pressing seats are provided with positioning grooves, the tail end of the lower cover is provided with two separate pressing pieces, the outer sides of the two pressing pieces are provided with positioning columns, and when the upper cover and the lower cover are overlapped with each other, the two pressing pieces are pressed against each other, and the two positioning columns are clamped in the two positioning grooves.

9. The LC polarity interchanging connector of claim 5, wherein The connecting unit comprises a front frame and a stop ring, the stop ring is inserted into the rear end of the front frame, the tail part of the stop ring is provided with a clamping ring groove, when the connecting unit is assembled in the connecting seat, the upper and lower ends of the clamping ring groove are clamped in the first front arc-shaped groove and the second front arc-shaped groove respectively, the front frame is provided with a first elastic piece, the outer end of the first elastic piece is provided with an upwardly protruding clamping strip, the upper cover is provided with a second elastic piece, and when the connecting unit and the connecting seat are assembled with each other, the clamping strip is clamped on the outer side of the second elastic piece.

10. The LC polarity interchanger of claim 9, wherein The connecting unit further comprises a tail handle, a small plug core, a plug core, a spring and a connecting sleeve, the small plug core is inserted into the front part of the tail handle and surrounded by the connecting sleeve, the plug core is inserted into the rear part of the tail handle, the spring is sleeved outside the plug core, the tail end of the plug core and the spring is inserted into the stop ring to be surrounded by the stop ring, the tail sleeve comprises a terminal, a sleeve ring and a coil, the terminal is fixed to the tail end of the connecting seat, the tail part of the connecting head extends out of the connecting seat, the sleeve ring is sleeved on the part of the connecting head extending out of the connecting seat, and the coil is sleeved outside the sleeve ring.

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