Multi-mode double-core armored optical fiber cable

Abstract

The utility model relates to the technical field of armored optical cables, in particular to a multimode double-core armored optical fiber cable, which comprises an optical cable body I and an optical cable body II, an annular connecting plate is fixedly connected to the position, close to one end, of the outer wall of the optical cable body I, and a connector I is movably connected to one side of the annular connecting plate. A second connector is fixedly installed at the position, close to one end, of the outer wall of the second optical cable body, a sealing mechanism is arranged at the end, close to the second connector, of the outer wall of the second optical cable body, first protective sleeves are fixedly installed in the first optical cable body and the second optical cable body, and second protective sleeves are fixedly installed on the inner walls of the first protective sleeves. By arranging the first connector and the second connector, connection can be conveniently completed without external tools, the working efficiency of optical cable connection is effectively improved, by arranging the sealing mechanism, the sealing performance of the joint of the first optical cable body and the second optical cable body is effectively improved, twisting force can be well buffered, and the service life of the optical cable is prolonged. And the fiber sleeve and the fiber core are prevented from being damaged due to overlarge twisting force.

Description

Technical Field

[0001] The utility model relates to the technical field of armored optical cables, and specifically relates to a multimode dual-core armored optical fiber cable. Background Technique

[0002] Armored optical cables have important applications in telecommunication optical fiber long-distance lines and primary and secondary trunk line transmissions. The armored optical fibers commonly contacted by general network management are mostly used for connecting two optical fiber network devices inside computer rooms and buildings. Such armored optical fibers are relatively short in length and are usually called armored jumpers.

[0003] In the prior art, for the armored optical cable proposed in the patent application number "CN202320054891.3", the inner sheath layer and the outer sheath layer of the armored optical cable of the present utility model have good flame retardancy, wear resistance and corrosion resistance, and the inside of the optical cable is fully protected by the inner sheath layer, the armored layer and the outer sheath layer; the filled first strengthening layer and the second strengthening layer effectively enhance the tensile performance of the armored optical cable, and the overall structure is beneficial to improving the reliability of the use of the armored optical cable.

[0004] However, in the above patent application, when connecting two armored optical cables, it is necessary to connect them by means of external connectors and fastening tools, and the operation is relatively troublesome, which affects the working efficiency of connecting two armored optical cables. Moreover, there are easily gaps between the connection parts, and external water flow can easily enter the armored optical cable from the gaps, causing damage. And when wiring, the armored optical cable is prone to twisting, and the above armored optical cable cannot buffer the twisting force and cannot avoid damage to the armored optical cable caused by the twisting force. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a multimode dual-core armored optical fiber cable to solve the problems raised in the above background technique.

[0006] The purpose of the present utility model can be achieved by the following technical solutions:

[0007] A multimode dual-core armored optical fiber cable includes a first cable body and a second cable body. A circular connecting plate is fixedly connected to a position near one end of the outer wall of the first cable body. A first connector is movably connected to one side of the circular connecting plate. A second connector is fixedly installed at a position near one end of the outer wall of the second cable body. A sealing mechanism is arranged at one end of the second cable body near the second connector. A first protective sleeve is fixedly installed inside both the first cable body and the second cable body. A second protective sleeve is fixedly installed on the inner wall of the first protective sleeve. Two connecting sleeves are fixedly installed inside the second protective sleeve. A fiber sleeve is fixedly installed inside each of the two connecting sleeves. An optical fiber core is fixedly installed inside each of the two fiber sleeves. A plurality of support plates are fixedly installed between the fiber sleeve and the connecting sleeve;

[0008] The sealing mechanism comprises an annular fixing plate, which is fixedly mounted on the second outer wall of the optical cable body. The second outer wall of the optical cable body is penetrated by two transverse grooves, and transverse bars are fixedly mounted inside the two transverse grooves.

[0009] Preferably, sliders are sleeved on the outside of the two cross bars, and support springs are sleeved on the outside of the two cross bars and located between the sliders and the inner side walls of the cross grooves. Two sealing plates are movably installed on one side of the annular fixed plate and located on the outside of the second connecting head, and one end of the two sliders is fixedly connected to the two sealing plates respectively.

[0010] Preferably, two shells are fixedly installed on the outer side wall of the annular fixed plate, and ramp blocks are slidably installed inside the two shells. A sliding groove is opened through the upper end surface of the shell, and an L-shaped toggle block is inserted into the sliding groove, and one end of the L-shaped toggle block is fixedly connected to the ramp block.

[0011] Preferably, a fixing nail is inserted into the upper end surface of the L-shaped toggle block, and fixing holes are opened near both sides of the upper end surface of the shell, and the fixing holes are matched with the fixing nails.

[0012] Preferably, an annular groove is provided on the outer side wall of the annular connecting plate, two slides are slidably installed inside the annular groove, and one end of the two slides is fixedly connected to the connecting head 1, the inner side wall of the connecting head 1 is provided with thread 1, the outer side wall of the connecting head 2 is provided with thread 2, and thread 2 is matched with thread 1, and a filling body is fixedly installed between the protective sleeve 2 and the two connecting sleeves.

[0013] Preferably, two curved rods are fixedly mounted on the second inner side walls of the protective sleeve, movable blocks are sleeved on the outside of the two curved rods, and one end of the two movable blocks is fixedly connected to the two connecting sleeves respectively.

[0014] Preferably, a return spring is sleeved on the outside of the curved rod near both ends, and one end of the return spring is fixedly connected to the movable block, and the other end of the return spring is fixedly connected to the second inner wall of the protective sleeve.

[0015] Beneficial effects of the utility model:

[0016] 1. The utility model arranges a set of connectors on the outside of the second connector, and rotates the first connector, cooperates with the first thread and cooperates with the second thread, and screws the first connector on the outside of the second connector to complete the connection and fixation of the first connector and the second connector, thereby connecting and fixing the first optical cable body and the second optical cable body together. The connection can be conveniently completed without the help of external tools, effectively improving the work efficiency of connecting optical cables.

[0017] 2. In the present invention, the L-shaped toggle block in the sealing mechanism cooperates with the slope block to make the sealing plate close to the outer wall position of the connector 2 and the connector 1, and the position of the sealing plate is fixed by the fixing nail and the fixing hole. Similarly, the other sealing plate can be moved to a position close to the outer wall of the connector 1 and the connector 2, so that the position between the connector 1 and the connector 2 can be further clamped and fixed, and the gap between the two can be filled, thereby improving the sealing of the connection between the optical cable body 1 and the optical cable body 2, and preventing external moisture from entering the optical cable body 1 and the optical cable body 2 through the gap to cause damage.

[0018] 3. In the utility model, when the optical cable is twisted, the second protective sleeve follows the twisting. Under the action of friction, the filling body and the movable block twist, and the sealing plate moves along the curved rod. The two reset springs are squeezed and contracted and pulled and stretched respectively. Then, under the action of the elastic force of the two reset springs, the movable block can be moved along the curved rod to the initial position, thereby effectively buffering the twisting force and preventing the fiber sleeve and the fiber core from being damaged due to excessive twisting force. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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, it is possible for a person skilled in the art to derive other drawings based on these drawings without inventive effort.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a cross-sectional view of the annular connecting plate in the utility model;

[0022] Figure 3 It is a cross-sectional view of the optical cable body 1 and the protective cover 1 in the utility model;

[0023] Figure 4 It is a cross-sectional view of the annular connecting plate and the housing in the utility model;

[0024] Figure 5 It is a cross-sectional view of the protective cover 2 in the present utility model;

[0025] Figure 6 It is a cross-sectional view of the sealing plate and the annular fixing plate in the utility model.

[0026] The reference numerals in the figures are as follows:

[0027] 1. Optical cable body 1; 2. Optical cable body 2; 3. Annular connecting plate; 4. Connector 1; 5. Fiber sleeve; 6. Fiber core; 7. Protective sleeve 1; 8. Protective sleeve 2; 9. Annular groove; 10. Slide plate; 11. Annular fixing plate; 12. Sealing plate; 13. Outer shell; 14. Slope block; 15. L-shaped toggle block; 16. Connector 2; 17. Cross bar; 18. Slider; 19. Filler; 20. Bending rod; 21. Movable block; 22. Support plate; 23. Connector sleeve. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying 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.

[0029] A multimode dual-core armored optical fiber cable, such as Figures 1-6 As shown, it includes an optical cable body 1 and an optical cable body 2, an annular connecting plate 3 is fixedly connected to the outer wall of the optical cable body 1 near one end, and a connector 14 is movably connected to one side of the annular connecting plate 3, a connector 2 16 is fixedly installed on the outer wall of the optical cable body 2 near one end, and a sealing mechanism is provided on the outer wall of the optical cable body 2 near one end of the connector 2 16, and a protective sleeve 1 7 is fixedly installed inside the optical cable body 1 and the optical cable body 2, and a protective sleeve 2 8 is fixedly installed on the inner wall of the protective sleeve 17, and two connecting sleeves 23 are fixedly installed inside the protective sleeve 28, and fiber sleeves 5 are fixedly installed inside the two connecting sleeves 23, and fiber cores 6 are fixedly installed inside the two fiber sleeves 5, and a number of support plates 22 are fixedly installed between the fiber sleeves 5 and the connecting sleeves 23, and the sealing mechanism includes an annular fixing plate 11, which is fixedly installed on the outer wall of the optical cable body 2, and two transverse grooves are provided through the outer wall of the optical cable body 2, and cross bars 17 are fixedly installed inside the two transverse grooves.

[0030] The two cross bars 17 are both sleeved with sliders 18 on the outside, and support springs are both sleeved on the outside of the two cross bars 17 and between the sliders 18 and the inner wall of the transverse groove. Two blocking plates 12 are movably installed on one side of the annular fixed plate 11 and outside the second connector 16, and one end of the two sliders 18 is fixedly connected to the two blocking plates 12 respectively.

[0031] Two outer shells 13 are fixedly installed on the outer wall of the annular fixed plate 11, and ramp blocks 14 are slidably installed inside the two outer shells 13. A sliding groove is opened through the upper end surface of the outer shell 13, and an L-shaped toggle block 15 is inserted into the sliding groove. One end of the L-shaped toggle block 15 is fixedly connected to the ramp block 14. The initial position of the ramp block 14 is that the oblique end surface is close to the outer wall of the blocking plate 12, the two blocking plates 12 are far away from each other, and the two support springs are in an unstretched state.

[0032] A fixing nail is inserted into the upper surface of the L-shaped toggle block 15, and fixing holes are opened near both sides of the upper surface of the shell 13, and the fixing holes are matched with the fixing nails. The L-shaped toggle block 15 can be fixed by matching the fixing nails with the fixing holes.

[0033] An annular groove 9 is provided on the outer wall of the annular connecting plate 3, and two slides 10 are slidably installed inside the annular groove 9, and one end of the two slides 10 is fixedly connected to the connecting head 4, and a thread 1 is provided on the inner wall of the connecting head 4, and a thread 2 is provided on the outer wall of the connecting head 2 16, and the thread 2 is matched with the thread 1, and a filling body 19 is fixedly installed between the protective sleeve 2 8 and the two connecting sleeves 23, and the inner wall of the filling body 19 is fixedly connected to the connecting sleeve 23, and the outer wall of the filling body 19 is tightly attached to the inner wall of the protective sleeve 2 8.

[0034] When two optical cables need to be connected, the connector 1 (4) installed at one end of the optical cable body (1) can be sleeved onto the outside of the connector 2 (16) installed at one end of the optical cable body (2). At the same time, the ring groove 9 provided on the annular connecting plate 3 cooperates with the slide 10 to rotate the connector 1 (4), so that the thread 1 cooperates with the thread 2, and the connector 1 (4) is screwed onto the outside of the connector 2 (16), completing the connection and fixing of the connector 1 (4) and the connector 2 (16). In this way, the optical cable body (1) and the optical cable body (2) can be connected and fixed together. The connection can be conveniently completed without the aid of external tools, effectively improving the efficiency of connecting optical cables.

[0035] After the connection is completed, move the L-shaped toggle block 15 in the sealing mechanism along the chute opened on the outer shell 13, driving the ramp block 14 to move towards the annular fixing plate 11, so that the inclined surface of the ramp block 14 moves along the outer wall of the plugging plate 12, which can drive the plugging plate 12 to move towards the second connector 16 through the cooperation of the slider 18 and the cross bar 17 until the plugging plate 12 is closely attached to the outer side walls of the second connector 16 and the first connector 4. Then, insert one end of the fixing nail through the L-shaped toggle block 15 and into the corresponding fixing hole, which can fix the position of the L-shaped toggle block 15, thereby fixing the position of the plugging plate 12. Similarly, the other plugging plate 12 can be moved to closely attach to the outer walls of the first connector 4 and the second connector 16, so as to further clamp and fix the position between the first connector 4 and the second connector 16, and can fill the gap between the two, improving the sealing performance at the connection of the first optical cable body 1 and the second optical cable body 2, and preventing external moisture from entering the first optical cable body 1 and the second optical cable body 2 through the gap, causing damage.

[0036] Two bent rods 20 are fixedly installed on the inner side wall of the second protective sleeve 8. Moving blocks 21 are sleeved on the outer parts of the two bent rods 20, and one ends of the two moving blocks 21 are respectively fixedly connected to the two connecting sleeves 23. Reset springs are sleeved on the outer parts of the bent rods 20 near both ends, one end of the reset spring is fixedly connected to the moving block 21, and the other end of the reset spring is fixedly connected to the inner wall of the second protective sleeve 8.

[0037] Specifically, the fiber sleeve 5 and the fiber core 6 are double-protected by the first protective sleeve 7 and the second protective sleeve 8, and the positions of the fiber sleeve 5 and the fiber core 6 can be supported and fixed by the filling body 19, the support plate 22 and the connecting sleeve 23. When the optical cable is twisted, the second protective sleeve 8 follows the twist. Since the inner wall of the second protective sleeve 8 is closely attached to the outer side wall of the filling body 19, under the action of the friction force between the two, the filling body 19 and the moving block 21 are driven to twist, and the plugging plate 12 moves along the bent rod 20, so that the two reset springs located on both sides of the moving block 21 are respectively compressed and contracted and stretched by pulling. Then, under the action of the elastic force of the two reset springs, the moving block 21 can move along the bent rod 20 to the initial position, driving the filling body 19 and the fiber sleeve 5 and the fiber core 6 fixedly connected to the filling body 19 to move to the initial position, thereby well buffering the twisting force and preventing the fiber sleeve 5 and the fiber core 6 from being damaged due to excessive twisting force.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A multimode dual-core armored optical fiber cable, comprising a first cable body (1) and a second cable body (2), characterized in that, The outer wall of the optical cable body 1 (1) is fixedly connected to an annular connecting plate (3) near one end, and a connector 1 (4) is movably connected to one side of the annular connecting plate (3). The outer wall of the optical cable body 2 (2) is fixedly installed with a connector 2 (16) near one end, and a sealing mechanism is provided at one end of the outer wall of the optical cable body 2 (2) near the connector 2 (16). The optical cable body 1 (1) and the optical cable body 2 (2) are both fixedly installed with a protective sleeve 1 (7), and the inner wall of the protective sleeve 1 (7) is fixedly installed with a protective sleeve 2 (8). Two connecting sleeves (23) are fixedly installed inside the two connecting sleeves (23), and a fiber sleeve (5) is fixedly installed inside the two fiber sleeves (5). A fiber core (6) is fixedly installed inside the two fiber sleeves (5), and a plurality of support plates (22) are fixedly installed between the fiber sleeve (5) and the connecting sleeve (23). The sealing mechanism comprises an annular fixing plate (11), which is fixedly mounted on the outer wall of the second optical cable body (2). The outer wall of the second optical cable body (2) is provided with two transverse grooves, and transverse rods (17) are fixedly mounted inside the two transverse grooves.

2. The multimode dual-core armored optical fiber cable according to claim 1, wherein The two cross bars (17) are both sleeved with sliders (18) on the outside, and support springs are both sleeved on the outside of the two cross bars (17) and located between the sliders (18) and the inner side wall of the transverse groove. Two blocking plates (12) are movably installed on one side of the annular fixing plate (11) and located outside the second connector (16), and one end of the two sliders (18) is fixedly connected to the two blocking plates (12) respectively.

3. The multimode dual-core armored fiber optic cable according to claim 2, characterized in that, Two outer shells (13) are fixedly mounted on the outer side wall of the annular fixed plate (11), and a ramp block (14) is slidably mounted inside the two outer shells (13). A sliding groove is provided through the upper end surface of the outer shell (13), and an L-shaped toggle block (15) is inserted into the sliding groove, and one end of the L-shaped toggle block (15) is fixedly connected to the ramp block (14).

4. A multimode dual-core armored fiber optic cable according to claim 3, characterized in that, The upper surface of the L-shaped toggle block (15) is provided with a fixing nail, and the upper surface of the shell (13) is provided with fixing holes near both sides, and the fixing holes are matched with the fixing nails.

5. A multimode dual-core armored fiber optic cable according to claim 1, characterized in that, The outer wall of the annular connecting plate (3) is provided with an annular groove (9), two slides (10) are slidably installed inside the annular groove (9), and one end of the two slides (10) is fixedly connected to the first connector (4), the inner wall of the first connector (4) is provided with a thread 1, the outer wall of the second connector (16) is provided with a thread 2, and the thread 2 is matched with the thread 1, and a filling body (19) is fixedly installed between the second protective sleeve (8) and the two connecting sleeves (23).

6. A multimode dual-core armored optical fiber cable according to claim 1, characterized in that, Two curved rods (20) are fixedly mounted on the inner side wall of the second protective sleeve (8), and movable blocks (21) are sleeved on the outside of the two curved rods (20), and one end of the two movable blocks (21) is fixedly connected to the two connecting sleeves (23) respectively.

7. A multimode dual-core armored fiber optic cable according to claim 6, characterized in that, The outer portion of the curved rod (20) is provided with a return spring near both ends, and one end of the return spring is fixedly connected to the movable block (21), and the other end of the return spring is fixedly connected to the inner wall of the second protective sleeve (8).

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