An LC type optical fiber connector with a protective housing

Abstract

The present invention discloses an LC type optical fiber connector with a protective shell, comprising a shell, an optical fiber head fixing seat is installed inside the shell, a pair of optical fiber head mounting grooves are arranged side by side at one end of the optical fiber head fixing seat, a standard optical fiber head extending from one end of the optical fiber head fixing seat is installed in the optical fiber head mounting groove, a pressure cap is arranged on the upper part of one end of the optical fiber head fixing seat, the pressure cap presses the standard optical fiber head in the optical fiber head mounting groove, a limiting extension part extending outward is arranged at one end of the pressure cap, the limiting extension part presses down the unlocking pressing piece on the upper side of the standard optical fiber head, and a cable connected to the standard optical fiber head is inserted into the optical fiber head fixing seat. The present invention can be assembled with a standard LC optical fiber head assembly, is easy to produce, and has high compatibility of parts.

Description

Technical Field

[0001] The invention relates to the field of optical fiber network plugs, in particular to an LC type optical fiber connector with a protective shell. Background Art

[0002] With the development of digital audio and video, the application of optical cable mobile wiring is becoming more and more extensive. The internal structure of the optical fiber plugs used in performances now mostly adopts non-standard special interfaces or components. Although this structure is relatively strong and reliable, once a problem occurs and needs to be repaired, it needs to be sent back to the original factory for repair, which has a relatively high cost. In addition, it is not a standard interface, and the corresponding socket is not compatible with the standard connector for emergency plug-in, and has low versatility.

[0003] If you simply connect a standard fiber optic head with an additional shell to the socket, there is also a problem. The standard LC fiber optic head has an unlocking tab on the upper side. If you do not remove the unlocking tab, the unlocking tab will lock with the socket when the standard fiber optic head and the shell are inserted together, and it cannot be unlocked and will be stuck on the socket. Summary of the invention

[0004] The invention provides an LC type optical fiber connector with a protective shell, which can be assembled with a standard LC optical fiber component and has shell protection, is convenient for maintenance and has high versatility.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an LC type fiber optic connector with a protective shell, comprising a shell, an optical fiber head fixing seat is installed inside the shell, a pair of optical fiber head mounting grooves are arranged side by side at one end of the optical fiber head fixing seat, a standard optical fiber head extending from one end of the optical fiber head fixing seat is installed in the optical fiber head mounting groove, a pressure cover is arranged on the upper part of one end of the optical fiber head fixing seat, and the pressure cover presses the standard optical fiber head in the optical fiber head mounting groove, and the standard optical fiber head can be fixed in all directions through the cooperation of the optical fiber head mounting groove and the pressure cover in the optical fiber head fixing seat, and the operation is very simple, that is, the standard optical fiber head is placed in the optical fiber head mounting groove, and the pressure cover is buckled. This structure solves the problem in the prior art that the optical fiber network plug cannot be assembled with the standard optical fiber head, and the assembly is also very easy.

[0006] Furthermore, one end of the pressure cover is provided with a limiting extension portion extending outward, and the limiting extension portion presses down the unlocking pressure piece on the upper side of the standard optical fiber head. The limiting extension portion can make the unlocking pressure piece in a downward pressed state and will not be locked with the network socket, thereby avoiding the need to cut off the unlocking pressure piece. If the unlocking pressure piece needs to be used for locking, the limiting extension portion can be cut off, making the use of the optical fiber network plug more flexible.

[0007] The optical fiber head fixing seat is bidirectionally through-connected, and a cable connected to a standard optical fiber head is inserted into the interior of the optical fiber head fixing seat, so the cable can be inserted from the other end to be connected to the standard optical fiber head.

[0008] Preferably, a partition is vertically arranged in the middle of one end of the optical fiber head fixing seat, and optical fiber head installation grooves are formed on both sides of the partition. The partition is inserted into the socket in the middle of the pressure cover and fixed. The partition solves the problem of optical fiber head installation groove molding and the problem of quick installation and fixation of the pressure cover.

[0009] Preferably, wedge-shaped buckle blocks are provided at both ends of the upper side of the partition, and the wedge-shaped buckle blocks are interference fit with both ends of the sockets on the pressure cover. The wedge-shaped buckle blocks can make the pressure cover quickly installed without other fasteners.

[0010] Preferably, vertical convex strips are arranged on the side walls of the optical fiber head installation groove, and the vertical convex strips are plugged into the slots on the outside of the standard optical fiber head, so as to quickly limit the horizontal direction of the standard optical fiber head.

[0011] Preferably, the lock inner shell at one end of the shell body has an outer side sleeved with an axially slidable unlocking sleeve.

[0012] Preferably, a wire clamping sleeve is axially inserted into the other end of the optical fiber head fixing seat, and one end of the wire clamping sleeve clamps one end of the tail sleeve outside the cable, which has the function of preventing the cable from being pulled out and protecting the cable.

[0013] Preferably, a pair of limiting grooves are arranged on the side wall at the other end of the optical fiber head fixing seat, and a protrusion matching the limiting groove is arranged on the side wall at one end of the wire clamping sleeve. The protrusion is plugged into the limiting groove, which has an anti-rotation effect on the wire clamping sleeve, thereby preventing the rotation of the cable from driving the wire clamping sleeve to rotate.

[0014] Preferably, the widths of the relatively arranged limiting grooves are different, so that the wire clamping sleeve can only be inserted into the optical fiber head fixing seat in a certain direction, which has an error-proofing function.

[0015] Preferably, a step is provided on the outer side of the tail sleeve, and the step is axially opposed to the inner wall of the shell body, so as to axially limit the tail sleeve and further have an anti-pull effect.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The standard optical fiber head can be fixed in all directions through the cooperation of the optical fiber head mounting groove and the pressure cover in the optical fiber head fixing seat, and the operation is very simple. The standard optical fiber head is placed in the optical fiber head mounting groove and the pressure cover is buckled. This structure solves the problem that the optical fiber network plug cannot be assembled with the standard optical fiber head in the prior art. The assembly is also very easy and the maintenance is simple. There is no need to return to the factory for maintenance. Moreover, after using the standard LC optical fiber head, it can be plugged into the standard network socket, which greatly improves the versatility;

[0018] (2) A limit extension portion extending outward is provided at one end of the gland, and the limit extension portion presses down the unlocking pressure piece on the upper side of the standard optical fiber head. The limit extension portion can keep the unlocking pressure piece in a downward pressed state and will not be locked with the network socket, thereby avoiding the need to cut off the unlocking pressure piece. If the unlocking pressure piece needs to be used for locking, the limit extension portion can be cut off, making the use of the optical fiber network plug more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a main structural diagram of the present invention;

[0020] Figure 2 It is a front view half-section structure diagram of the present invention;

[0021] Figure 3 It is a partial three-dimensional structural diagram of the present invention;

[0022] Figure 4 It is a partial three-dimensional structural diagram of the present invention;

[0023] Figure 5 It is a three-dimensional structural diagram of the optical fiber head fixing seat of the present invention. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] like Figure 1-5 The present invention relates to an LC type optical fiber connector with a protective shell, comprising a shell 1, an optical fiber head fixing seat 4 is installed inside the shell 1, a pair of optical fiber head mounting grooves 15 are arranged side by side at one end of the optical fiber head fixing seat 4, a standard optical fiber head 5 extending from one end of the optical fiber head fixing seat 4 is installed in the optical fiber head mounting groove 15, and a pressure cover 11 is arranged on the upper part of one end of the optical fiber head fixing seat 4, and the pressure cover 11 presses the standard optical fiber head 5 in the optical fiber head mounting groove 15.

[0026] Through the cooperation of the optical fiber head mounting groove 15 and the pressure cover 11 in the optical fiber head fixing seat 4, the standard optical fiber head 5 can be fixed in all directions, and the operation is very simple. The standard optical fiber head 5 is placed in the optical fiber head mounting groove 15 and the pressure cover 11 is buckled. This structure solves the problem in the prior art that the optical fiber network plug cannot be assembled with the standard optical fiber head 5, and the assembly is also very easy.

[0027] Furthermore, one end of the pressure cover 11 is provided with a limiting extension portion 12 extending outward, and the limiting extension portion 12 presses down the unlocking pressure piece 17 on the upper side of the standard optical fiber head 5. The limiting extension portion 12 can make the unlocking pressure piece 17 in a pressed down state and will not be locked with the network socket, thereby avoiding the need to cut off the unlocking pressure piece 17. If the unlocking pressure piece 17 needs to be used for locking, the limiting extension portion 12 can be cut off, making the use of the optical fiber network plug more flexible.

[0028] The optical fiber head fixing seat 4 is bidirectionally through, and a cable 9 connected to the standard optical fiber head 5 is inserted into the interior of the optical fiber head fixing seat 4, so the cable 9 can be inserted from the other end to be connected to the standard optical fiber head 5.

[0029] As a preferred technical solution, Figure 3-4 As shown, a partition 10 is vertically arranged in the middle of one end of the optical fiber head fixing seat 4, and optical fiber head mounting grooves 15 are formed on both sides of the partition 10. The partition 10 is inserted into the socket in the middle of the pressure cover 11 for fixing. The partition 10 not only solves the problem of forming the optical fiber head mounting groove 15, but also solves the problem of quickly installing and fixing the pressure cover 11. At the same time, wedge-shaped buckle blocks 14 are arranged at both ends of the upper side of the partition 10. The wedge-shaped buckle blocks 14 are interference fit with both ends of the socket on the pressure cover 11. When the pressure cover 11 is installed, the partition 10 can play a role of connection and guidance. The wedge-shaped buckle blocks 14 can make the pressure cover 11 install quickly, and no other fasteners are required, which is very convenient.

[0030] If the standard optical fiber head 5 is damaged, the gland 11 may be forcibly removed, the standard optical fiber head 5 may be replaced, and then the partition plate 10 and the gland 11 may be fixedly connected together by ultrasonic welding.

[0031] In order to limit the standard optical fiber head 5 in the horizontal direction, vertical ridges 16 are relatively arranged on the side walls of the optical fiber head installation groove 15. The vertical ridges 16 are plugged into the slots on the outside of the standard optical fiber head 5, which can quickly limit the standard optical fiber head 5 in the horizontal direction.

[0032] As an unlocking method of the fiber optic network plug of the present patent application, the locking inner shell 3 at one end of the shell body 1 has an axially slidable unlocking sleeve 2 on the outer side of the locking inner shell 3. The buckle strip on the locking inner shell 3 can be retracted by sliding the unlocking sleeve 2 to achieve unlocking from the network socket. When using this method, the unlocking pressure piece 17 on the upper side of the standard optical fiber head 5 needs to be in a pressed down state.

[0033] In order to protect the cable 9, a wire clamping sleeve 6 is axially inserted into the other end of the optical fiber head fixing seat 4. One end of the wire clamping sleeve 6 clamps one end of the tail sleeve 7 outside the cable 9, which has the function of preventing the cable from being pulled out and protecting the cable.

[0034] As a preferred solution, Figure 5 As shown, a pair of limiting grooves 18 are relatively arranged on the side wall of the other end of the optical fiber head fixing seat 4, and a protrusion matching the limiting groove 18 is arranged on the side wall of one end of the wire clamping sleeve 6. The protrusion is plugged into the limiting groove 18, which has an anti-rotation effect on the wire clamping sleeve 6, thereby preventing the rotation of the cable from driving the wire clamping sleeve 6 to rotate.

[0035] The widths of the relatively arranged limiting grooves 18 are different, so that the wire clamping sleeve 6 can only be inserted into the optical fiber head fixing seat 4 in a certain direction, which has the function of preventing mistakes.

[0036] A step 8 is provided on the outer side of the tail sleeve 7 , and the step 8 is axially opposed to the inner wall of the housing 1 , so as to limit the axial position of the tail sleeve 7 and further have an anti-pull effect.

[0037] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An LC type optical fiber connector with a protective housing, comprising a housing (1), characterized in that: An optical fiber head fixing seat (4) is installed inside the housing (1), a pair of optical fiber head mounting grooves (15) are arranged side by side at one end of the optical fiber head fixing seat (4), a standard optical fiber head (5) extending from one end of the optical fiber head fixing seat (4) is installed in the optical fiber head mounting groove (15), a pressure cover (11) is arranged on the upper part of one end of the optical fiber head fixing seat (4), the pressure cover (11) presses the standard optical fiber head (5) in the optical fiber head mounting groove (15), and one end of the pressure cover (11) is provided with a limit extension extending outward. The limit extension part (12) presses down the unlocking pressing piece (17) on the upper side of the standard optical fiber head (5); a cable (9) connected to the standard optical fiber head (5) is inserted into the interior of the optical fiber head fixing seat (4); the limit extension part (12) can make the unlocking pressing piece (17) in a downwardly pressed state and will not be locked with the network socket, thereby avoiding the need to cut off the unlocking pressing piece (17); if the unlocking pressing piece (17) is needed for locking, the limit extension part (12) can be cut off, so that the use of the optical fiber network plug is more flexible; The locking inner shell (3) at one end of the shell body (1) is sleeved with an axially slidable unlocking sleeve (2) on the outer side of the locking inner shell (3). The buckle strip on the locking inner shell (3) can be retracted by sliding the unlocking sleeve (2) to achieve unlocking from the network socket. When this method is used, the unlocking pressing piece (17) on the upper side of the standard optical fiber head (5) needs to be in a downward pressed state.

2. The LC type optical fiber connector with a protective housing according to claim 1, characterized in that: A partition (10) is vertically arranged in the middle of one end of the optical fiber head fixing seat (4), and optical fiber head installation grooves (15) are formed on both sides of the partition (10). The partition (10) is inserted into the insertion hole in the middle of the pressure cover (11) for fixing.

3. The LC type optical fiber connector with a protective housing according to claim 2, characterized in that: Wedge-shaped buckle blocks (14) are provided at both ends of the upper side of the partition (10), and the wedge-shaped buckle blocks (14) are interference-fitted with both ends of the insertion hole on the pressure cover (11).

4. The LC type optical fiber connector with a protective housing according to claim 2, characterized in that: Vertical convex strips (16) are arranged on the side walls of the optical fiber head installation groove (15) opposite to each other, and the vertical convex strips (16) are plugged into the slots on the outside of the standard optical fiber head (5).

5. The LC type optical fiber connector with a protective housing according to claim 1, characterized in that: A wire clamping sleeve (6) is axially inserted into the other end of the optical fiber head fixing seat (4), and one end of the wire clamping sleeve (6) clamps one end of the tail sleeve (7) outside the cable (9).

6. The LC type optical fiber connector with a protective housing according to claim 5, characterized in that: A pair of limiting grooves (18) are arranged on the other side wall of the optical fiber head fixing seat (4), and a protrusion matching the limiting groove (18) is arranged on the side wall of one end of the wire clamping sleeve (6), and the protrusion is plugged into the limiting groove (18).

7. The LC type optical fiber connector with a protective housing according to claim 6, characterized in that: The widths of the relatively arranged limiting grooves (18) are different.

8. The LC type optical fiber connector with a protective housing according to claim 5, characterized in that: A step (8) is provided on the outer side of the tail sleeve (7), and the step (8) is axially abutted against the inner side wall of the housing (1).

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