Equipment, connection mechanism and testing method for detecting water seepage in stranded optical cables

Abstract

This invention belongs to the field of testing technology and is a stranded optical cable water seepage detection device, connection mechanism, and detection method. It includes: a vertically arranged water pipe and several connection mechanisms equidistantly arranged on the side wall of the water pipe. The connection mechanisms are connected to the water pipe, and the optical cable to be tested is threaded through each connection mechanism. Each connection mechanism includes: a fixed sleeve; the fixed sleeve is connected to a connector on the water pipe; a limiting ring is provided on the side of the fixed sleeve away from the connector, the inner diameter of the limiting ring being adapted to the outer diameter of the optical cable to be tested; an inner sleeve is threaded through the fixed sleeve; a movable ring is slidably arranged in the inner sleeve; the optical cable to be tested passes through the limiting ring and extends into the inner sleeve, where it is locked with the movable ring. As the optical cable to be tested extends, it drives the movable ring to move towards the connector. Water in the water pipe enters through the connector into the cavity formed between the movable ring, the inner wall of the inner sleeve, and the limiting ring, pre-wetting the optical cable to be tested within the cavity. This achieves pre-wetting and testing of the optical cable directly on the water pipe.

Description

Technical Field

[0001] This invention belongs to the field of testing technology, specifically relating to testing by measuring the physical properties of materials, and particularly to a stranded optical cable water seepage detection device, connection mechanism and detection method. Background Technology

[0002] Waterproofing tests are used to evaluate the ability of optical cables to prevent longitudinal water migration under specific water pressure, ensuring that they remain dry inside in humid environments or when accidentally submerged in water, thus avoiding a decline in optical fiber transmission performance. According to national standards, when conducting waterproofing tests on optical cables, the cross-section of the optical cable needs to be pre-wetted to simulate the scenario of accidental water immersion at the end of the optical cable, and to verify the rapid activation ability of the water-blocking material (water-blocking yarn / powder) and the effectiveness of the longitudinal water-blocking structure.

[0003] The relevant technology requires the optical cable to be pre-impregnated in other equipment or institutions. After the pre-impregnation is completed, the optical cable is then manually connected to the water pipe for water seepage testing, which makes the process complicated and cumbersome.

[0004] Therefore, after pre-impregnation, the optical cable is manually connected to the water pipe for water seepage testing, which leads to complex and cumbersome technical problems. It is necessary to design a layered optical cable water seepage detection device, connection mechanism and detection method.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Summary of the Invention

[0006] This disclosure provides at least one device, connection mechanism, and detection method for detecting water seepage in stranded optical cables.

[0007] In a first aspect, embodiments of this disclosure provide a stranded optical cable water seepage detection device, comprising:

[0008] A vertically arranged water pipe and several connecting mechanisms equidistantly arranged on the side wall of the water pipe, wherein the connecting mechanisms are connected to the water pipe and the optical cable to be tested is threaded through the connecting mechanisms;

[0009] The connecting mechanism includes: a fixed sleeve;

[0010] The fixed sleeve is connected to the connector on the water pipe;

[0011] A limiting ring is provided on the side of the fixed sleeve away from the connector, and the inner diameter of the limiting ring is adapted to the outer diameter of the optical cable to be tested.

[0012] An inner sleeve is inserted inside the fixed sleeve;

[0013] A movable ring is slidably disposed in the inner sleeve;

[0014] After the optical cable under test passes through the limiting ring, it extends into the inner sleeve and is locked with the moving ring. As the optical cable under test extends in, it drives the moving ring to move towards the connector. Water in the water pipe enters the cavity formed between the moving ring, the inner wall of the inner sleeve and the limiting ring through the connector to pre-wet the optical cable under test in the cavity, and then the optical cable under test is tested.

[0015] In one optional embodiment, a plurality of sliding grooves are formed on the inner wall of the inner sleeve;

[0016] The side wall of the movable ring is provided with a slider that corresponds to and is adapted to the sliding groove;

[0017] The movable ring has a through hole corresponding to the slider, and the through hole extends to the corresponding slider.

[0018] As the moving circumferential connector moves, water from the water pipe enters the chamber through the through hole.

[0019] In one optional embodiment, a pair of locking blocks are provided on the inner wall of the chute near the end of the connector, and there is a gap between the two locking blocks;

[0020] The moving ring and the limiting ring are connected by several springs;

[0021] When the slider moves into the gap between the two blocks, the blocks lock the slider in place, and the spring is in a stretched state.

[0022] When the flow rate in the water pipe increases, the water flow in the connector pushes the moving ring to disengage the slider from the locking block. At this time, the spring drives the moving ring to move towards the limiting ring, squeezing the water in the chamber from the outlet into the internal cavity of the fixed sleeve.

[0023] In one optional embodiment, the movable ring is provided with an elastic ring, the inner diameter of which is smaller than the outer diameter of the optical cable under test. When the optical cable under test is spread out and passes through the elastic ring, the elastic ring clamps the optical cable under test.

[0024] Secondly, this disclosure also provides a connection mechanism for the above-mentioned stranded optical cable water seepage detection device, comprising:

[0025] A fixed sleeve is connected to the connector on the water pipe;

[0026] A limiting ring is provided on the side of the fixed sleeve away from the connector, and the inner diameter of the limiting ring is adapted to the outer diameter of the optical cable to be tested.

[0027] An inner sleeve is inserted inside the fixed sleeve;

[0028] A movable ring is slidably disposed in the inner sleeve;

[0029] After the optical cable under test passes through the limiting ring, it extends into the inner sleeve and is locked with the moving ring. As the optical cable under test extends in, it drives the moving ring to move towards the connector. Water in the water pipe enters the cavity formed between the moving ring, the inner wall of the inner sleeve and the limiting ring through the connector to pre-wet the optical cable under test in the cavity.

[0030] In one optional embodiment, a plurality of sliding grooves are formed on the inner wall of the inner sleeve;

[0031] The side wall of the movable ring is provided with a slider that corresponds to and is adapted to the sliding groove;

[0032] The movable ring has a through hole corresponding to the slider, and the through hole extends to the corresponding slider.

[0033] As the moving circumferential connector moves, water from the water pipe enters the chamber through the through hole.

[0034] In one optional embodiment, a pair of locking blocks are provided on the inner wall of the chute near the end of the connector, and there is a gap between the two locking blocks;

[0035] The moving ring and the limiting ring are connected by several springs;

[0036] When the slider moves into the gap between the two blocks, the blocks lock the slider in place, and the spring is in a stretched state.

[0037] When the flow rate in the water pipe increases, the water flow in the connector pushes the moving ring to disengage the slider from the locking block. At this time, the spring drives the moving ring to move towards the limiting ring, squeezing the water in the chamber from the outlet into the internal cavity of the fixed sleeve.

[0038] In one optional embodiment, the movable ring is provided with an elastic ring, the inner diameter of which is smaller than the outer diameter of the optical cable under test. When the optical cable under test is spread out and passes through the elastic ring, the elastic ring clamps the optical cable under test.

[0039] Thirdly, this disclosure also provides a detection method using the above-mentioned stranded optical cable water seepage detection equipment, comprising:

[0040] After the optical cable under test passes through the limiting ring, it extends into the inner sleeve and is locked with the moving ring. As the optical cable under test extends in, it drives the moving ring to move towards the connector. Water in the water pipe enters the cavity formed between the moving ring, the inner wall of the inner sleeve and the limiting ring through the connector to pre-wet the optical cable under test in the cavity, and then the optical cable under test is tested.

[0041] In one alternative implementation, when the flow rate in the water pipe increases, the water flow in the connector pushes the moving ring to disengage the slider from the locking block. At this time, the spring drives the moving ring to move towards the limiting ring, squeezing the water in the chamber from the outlet into the internal cavity of the fixed sleeve.

[0042] The beneficial effects of this invention are as follows: the stranded optical cable water seepage detection device includes: a vertically arranged water pipe and several connecting mechanisms equidistantly arranged on the side wall of the water pipe. The connecting mechanisms are connected to the water pipe, and the optical cable to be tested is threaded through the connecting mechanism. The connecting mechanism includes: a fixed sleeve; the fixed sleeve is connected to a connector on the water pipe; a limiting ring is provided on the side of the fixed sleeve away from the connector, and the inner diameter of the limiting ring is adapted to the outer diameter of the optical cable to be tested; an inner sleeve is threaded through the fixed sleeve; a movable ring is slidably arranged in the inner sleeve; after the optical cable to be tested passes through the limiting ring, it extends into the inner sleeve and is locked with the movable ring. As the optical cable to be tested extends in, it drives the movable ring to move towards the connector. Water in the water pipe enters the cavity formed between the movable ring, the inner wall of the inner sleeve, and the limiting ring through the connector to pre-wet the optical cable to be tested in the cavity, thereby realizing the pre-wetting and detection of the optical cable directly on the water pipe.

[0043] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0044] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0045] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0046] Figure 1 This is a schematic diagram of the structure of a stranded optical cable water seepage detection device provided in an embodiment of the present disclosure;

[0047] Figure 2 This is a schematic diagram of a connecting mechanism provided in an embodiment of the present disclosure;

[0048] Figure 3 This is a schematic diagram of the structure of a limiting ring provided in an embodiment of the present disclosure;

[0049] Figure 4 This is a schematic diagram of the structure of a moving ring provided in an embodiment of the present disclosure;

[0050] Figure 5 This is a schematic diagram of the internal structure of a connecting mechanism in a pre-wetting state, provided in an embodiment of the present disclosure.

[0051] Figure 6 This is a schematic diagram of the internal structure of a connection mechanism in a detection state, as provided in an embodiment of this disclosure.

[0052] In the picture:

[0053] 1 water pipe, 11 connectors;

[0054] 2. Connecting mechanism, 21. Fixed sleeve, 210. Cavity, 22. Limiting ring, 23. Inner sleeve, 230. Outlet, 231. Slide groove, 232. Locking block, 24. Moving ring, 241. Slider, 242. Through hole, 243. Elastic ring, 244. Spring, 25. Chamber;

[0055] 3. Optical cable to be tested. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0057] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0058] Waterproofing tests are used to evaluate the ability of optical cables to prevent longitudinal water migration under specific water pressure, ensuring internal dryness in humid environments or accidental water immersion, and preventing degradation of fiber optic transmission performance. According to national standards, waterproofing tests require pre-impregnation of the optical cable cross-section to simulate accidental water immersion at the cable end, verifying the rapid activation capability of the water-blocking material (water-blocking yarn / powder) and the effectiveness of the longitudinal water-blocking structure. This process involves pre-impregnation in other equipment or facilities, followed by manual connection of the cable to a water pipe for the waterproofing test, resulting in a complex and cumbersome procedure.

[0059] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0060] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0061] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0062] like Figure 1 , Figure 2 and Figure 3 At least one disclosed embodiment provides a stranded optical cable water seepage detection device, comprising: a vertically arranged water pipe 1, and a plurality of connecting mechanisms 2 equidistantly arranged on the side wall of the water pipe 1, wherein the connecting mechanisms 2 are connected to the water pipe 1, and an optical cable 3 to be tested is threaded through the connecting mechanism 2; the connecting mechanism 2 includes: a fixing sleeve 21; the fixing sleeve 21 is connected to a connector 11 on the water pipe 1; a limiting ring 22 is provided on the side of the fixing sleeve 21 away from the connector 11, the inner diameter of the limiting ring 22 being adapted to the outer diameter of the optical cable 3 to be tested; the fixing sleeve 21 is further provided with a limiting ring 22 on the side away from the connector 11; the inner diameter of the limiting ring 22 being adapted to the outer diameter of the optical cable 3 to be tested; the fixing sleeve 21 is further provided with a limiting ring 22 on the side away from the connector 11; the inner diameter of the limiting ring 22 being adapted to the outer diameter of the optical cable 3 to be tested; the fixing sleeve 21 is further provided with a limiting ring 22 on the side wall of the water pipe 1, wherein the inner diameter of the limiting ring 22 is ... An inner sleeve 23 is inserted inside the cylinder 21; a movable ring 24 is slidably disposed in the inner sleeve 23; the optical cable 3 to be tested passes through the limiting ring 22 and extends into the inner sleeve 23 and is locked with the movable ring 24. As the optical cable 3 to be tested extends in, it drives the movable ring 24 to move towards the connector 11. The water in the water pipe 1 enters the cavity 25 formed between the movable ring 24, the inner wall of the inner sleeve 23 and the limiting ring 22 through the connector 11, so as to pre-wet the optical cable 3 to be tested in the cavity 25, and then test the optical cable 3 to be tested, thereby realizing the pre-wetting and testing of the optical cable directly on the water pipe 1.

[0063] In this embodiment, after the optical cable is pre-impregnated, the moving ring 24 moves toward the limiting ring 22, so that most of the optical cable 3 to be tested that has been inserted into the inner sleeve 23 is moved out of the inner sleeve 23, leaving only a small part of the optical cable 3 to be tested and the end of the optical cable 3 to be tested in the inner sleeve 23.

[0064] like Figure 2 As shown, in one optional embodiment, the inner wall of the inner sleeve 23 is provided with a plurality of sliding grooves 231, which are arranged along the axial direction of the inner sleeve 23; the side wall of the moving ring 24 is provided with a slider 241 corresponding to and adapted to the sliding groove 231; the moving ring 24 is provided with a through hole 242 corresponding to the slider 241, which extends to the corresponding slider 241; when the moving ring 24 moves toward the connector 11, the water in the water pipe 1 enters the chamber 25 through the through hole 242.

[0065] In this embodiment, the moving ring 24 can move stably by the cooperation of the slider 241 and the groove 231.

[0066] like Figure 2 , Figure 3 and Figure 4 As shown, in one optional embodiment, a pair of locking blocks 232 are provided on the inner wall of the slide groove 231 near the end of the connector 11, and there is a gap between the two locking blocks 232; the moving ring 24 and the limiting ring 22 are connected by several springs 244; when the slider 241 moves into the gap between the two locking blocks 232, the locking blocks 232 lock the slider 241, and the springs 244 are in a stretched state; when the flow rate in the water pipe 1 increases, the water flow in the connector 11 pushes the moving ring 24 to cause the slider 241 to disengage from the locking blocks 232, and the springs 244 drive the moving ring 24 to move towards the limiting ring 22, thereby causing the moving ring 24 to reset.

[0067] In this embodiment, the side of the card block 232 near the moving ring 24 is inclined, which makes it easier for the slider 241 to move into the gap.

[0068] like Figure 5As shown, in this embodiment, when the optical cable 3 to be tested needs to be pre-wetted, the valve on the water pipe 1 or the connector 11 can be closed first, so there is no water flow in the inner sleeve 23, the moving ring 24 is in the initial position, that is, close to the limiting ring 22, and the spring 244 is in a balanced state. The optical cable 3 to be tested is inserted into the inner sleeve 23. The optical cable 3 to be tested contacts the moving ring 24 and pushes the moving ring 24 to move towards the connector 11. When the slider 241 enters the gap between the two locking blocks 232, the locking blocks 232 lock the slider 241. At this time, the moving ring 24 stops moving, and the spring 244 is in a stretched state. At this time, the valve is opened, and a small flow of water flows through the water pipe 1. The water enters the fixed sleeve 21 through the connector 11 and flows into the chamber 25 through the through hole 242 to pre-wet the optical cable 3 to be tested. At this time, the water flow is small and cannot push the slider 241 of the moving ring 24 out of the locking block 232. The moving ring 24 remains stationary.

[0069] like Figure 6 As shown, in this embodiment, when the pre-soaking ends, for example, if a pre-soaking time is preset, such as 10 minutes, the flow rate in the water pipe 1 can be increased after 10 minutes of pre-soaking. At this time, by increasing the instantaneous impact force of the water flow, the slider 241 of the moving ring 24 is pushed out of the locking block 232. Then, under the water pressure and the reset pull of the spring 244, the moving ring 24 moves towards the limiting ring 22. This allows the water in the chamber 25 to flow from the outlet 230 on the inner sleeve 23 into the cavity 210 of the fixed sleeve 21 until the moving ring 24 returns to its initial position.

[0070] Specifically, a pressure valve or elastic sheet can be installed at the outlet 230 to prevent water from flowing into the cavity during the pre-soaking process.

[0071] Meanwhile, the water stored in the cavity 210 can be removed by removing the inner sleeve 23 after the test is completed. That is, the inner sleeve 23 and the fixed sleeve 21 can be connected in a split manner (not shown in the figure), and the volume of the cavity 210 is greater than the volume of the chamber 25 to ensure that all the water in the chamber 25 can flow into the cavity 210.

[0072] Furthermore, after the moving ring 24 retracts to its initial position, there is still a certain space between it and the limiting ring 22 to accommodate the reset spring 244. This allows as much of the optical cable 3 under test as that originally extended into the chamber 25 to be moved out of the inner sleeve 23 as possible, minimizing the possibility of the long sidewall of the optical cable 3 under test coming into contact with water and causing false detection. Then, the optical cable 3 under test can be tested. At this time, one end of the optical cable 3 under test is in contact with water inside the inner sleeve 23, and a test strip is placed at the other end of the optical cable 3 under test to determine whether water will flow out of the optical cable 3 under test. If the test strip changes color upon contact with water, it is determined that the water-proof test of the optical cable 3 under test is unqualified. Thus, the testing can be started directly after the pre-wetting of the optical cable 3 under test is completed.

[0073] In this embodiment, a sponge layer can be provided on the outer wall of the limiting ring 22. The inner wall of the sponge layer is aligned with the inner wall of the limiting ring 22. When the moving ring 24 resets and moves the optical cable 3 under test that has been inserted into the inner sleeve 23 out of the inner sleeve 23, the outer wall of the optical cable 3 under test that was originally immersed in water will come into contact with the inner wall of the sponge layer, absorbing the water remaining on the outer wall of the optical cable 3 under test that has extended out of the inner sleeve 23, which facilitates more accurate subsequent testing.

[0074] In this embodiment, since the inner diameter of the limiting ring 22 is adapted to the inner diameter of the optical cable 3 under test, the outer wall of the optical cable 3 under test contacts the inner wall of the limiting ring 22 when it is inserted into the inner sleeve 23, thus preventing water from flowing out of the chamber 25. Specifically, the edge of the limiting ring includes, but is not limited to, the use of a lip sealing ring, so that while meeting the sealing conditions, the subsequent optical cable can also slide freely.

[0075] like Figure 3 As shown, in one optional embodiment, the movable ring 24 is provided with an elastic ring 243. The inner diameter of the elastic ring 243 is smaller than the outer diameter of the optical cable 3 to be tested. When the optical cable 3 to be tested is spread out and passes through the elastic ring 243, the elastic ring 243 clamps the optical cable 3 to be tested.

[0076] In this embodiment, the elastic ring 243 can be made of rubber or the like.

[0077] In this embodiment, when the slider 241 is clamped by the locking block 232, the optical cable 3 to be tested is pushed into the inner sleeve 23, which can help ensure that the optical cable 3 to be tested passes through the elastic ring 243 and is clamped by the elastic ring 243.

[0078] In this embodiment, the optical cable 3 to be tested can be manually inserted into the inner sleeve 23. When the slider 241 is clamped by the locking block 232 and the optical cable 3 to be tested is clamped by the elastic ring 243, it is no longer necessary to manually keep the optical cable 3 to be tested inserted into the inner sleeve 23.

[0079] At least one other disclosed embodiment also provides a connection mechanism 2 used in the above-mentioned stranded optical cable water seepage detection device, comprising: a fixed sleeve 21, which is connected to a connector 11 on a water pipe 1; a limiting ring 22 is provided on the side of the fixed sleeve 21 away from the connector 11, the inner diameter of the limiting ring 22 being adapted to the outer diameter of the optical cable 3 to be tested; an inner sleeve 23 is provided inside the fixed sleeve 21; a movable ring 24 is slidably disposed in the inner sleeve 23; after the optical cable 3 to be tested passes through the limiting ring 22, it extends into the inner sleeve 23 and is clamped with the movable ring 24. As the optical cable 3 to be tested extends in, it drives the movable ring 24 to move towards the connector 11, and the water in the water pipe 1 enters the cavity 25 formed between the movable ring 24, the inner wall of the inner sleeve 23 and the limiting ring 22 through the connector 11, so as to pre-wet the optical cable 3 to be tested in the cavity 25.

[0080] In one optional embodiment, the inner wall of the inner sleeve 23 is provided with a plurality of sliding grooves 231; the side wall of the moving ring 24 is provided with a slider 241 corresponding to and adapted to the sliding grooves 231; the moving ring 24 is provided with a through hole 242 corresponding to the slider 241, and the through hole 242 extends to the corresponding slider 241; when the moving ring 24 moves toward the connector 11, the water in the water pipe 1 enters the chamber 25 through the through hole 242.

[0081] In one optional embodiment, a pair of locking blocks 232 are provided on the inner wall of the slide groove 231 near the end of the connector 11, and there is a gap between the two locking blocks 232; the moving ring 24 and the limiting ring 22 are connected by several springs 244; when the slider 241 moves into the gap between the two locking blocks 232, the locking blocks 232 lock the slider 241, and the springs 244 are in a stretched state; when the flow rate in the water pipe 1 increases, the water flow in the connector 11 pushes the moving ring 24 to drive the slider 241 to disengage from the locking blocks 232, and the springs 244 drive the moving ring 24 to move towards the limiting ring 22, squeezing the water in the chamber 25 from the outlet into the internal cavity of the fixed sleeve.

[0082] In one optional embodiment, the movable ring 24 is provided with an elastic ring 243, the inner diameter of which is smaller than the outer diameter of the optical cable 3 to be tested. When the optical cable 3 to be tested is spread out and passes through the elastic ring 243, the elastic ring 243 clamps the optical cable 3 to be tested.

[0083] At least one other disclosed embodiment also provides a detection method using the above-described stranded optical cable water seepage detection device, comprising: the optical cable 3 to be tested passes through the limiting ring 22 and extends into the inner sleeve 23 and is clamped with the moving ring 24; as the optical cable 3 to be tested extends in, it drives the moving ring 24 to move towards the connector 11; water in the water pipe 1 enters the cavity 25 formed between the moving ring 24, the inner wall of the inner sleeve 23 and the limiting ring 22 through the connector 11, so as to pre-wet the optical cable 3 to be tested in the cavity 25; and then the optical cable 3 to be tested is detected.

[0084] In one alternative implementation, when the flow rate in the water pipe 1 increases, the water flow in the connector 11 pushes the moving ring 24 to cause the slider 241 to disengage from the locking block 232. At this time, the spring 244 drives the moving ring 24 to move towards the limiting ring 22, squeezing the water in the chamber 25 from the outlet into the internal cavity of the fixed sleeve.

[0085] In summary, the fiber optic cable leakage detection device includes: a vertically arranged water pipe 1, and several connecting mechanisms 2 equidistantly arranged on the side wall of the water pipe 1. The connecting mechanisms 2 are connected to the water pipe 1, and the fiber optic cable 3 to be tested is threaded through the connecting mechanism 2. The connecting mechanism 2 includes: a fixing sleeve 21; the fixing sleeve 21 is connected to a connector 11 on the water pipe 1; a limiting ring 22 is provided on the side of the fixing sleeve 21 away from the connector 11, and the inner diameter of the limiting ring 22 is adapted to the outer diameter of the fiber optic cable 3 to be tested; the fixing... An inner sleeve 23 is inserted inside the sleeve 21; a movable ring 24 is slidably disposed in the inner sleeve 23; the optical cable 3 to be tested passes through the limiting ring 22 and extends into the inner sleeve 23 and is locked with the movable ring 24. As the optical cable 3 to be tested extends in, it drives the movable ring 24 to move towards the connector 11. The water in the water pipe 1 enters the cavity 25 formed between the movable ring 24, the inner wall of the inner sleeve 23 and the limiting ring 22 through the connector 11, so as to pre-wet the optical cable 3 to be tested in the cavity 25, thereby realizing the pre-wetting and testing of the optical cable directly on the water pipe 1.

[0086] In the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0087] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as a second element, component, region, layer, or segment.

[0088] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0089] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A device for detecting water seepage in stranded optical cables, characterized in that, include: A vertically arranged water pipe (1) and several connecting mechanisms (2) equidistantly arranged on the side wall of the water pipe (1), wherein the connecting mechanism (2) is connected to the water pipe (1), and the optical cable (3) to be tested is inserted inside the connecting mechanism (2). The connecting mechanism (2) includes: a fixed sleeve (21); The fixed sleeve (21) is connected to the connector (11) on the water pipe (1); A limiting ring (22) is provided on the side of the fixed sleeve (21) away from the connector (11), and the inner diameter of the limiting ring (22) is adapted to the outer diameter of the optical cable (3) to be tested; An inner sleeve (23) is inserted inside the fixed sleeve (21); A movable ring (24) is slidably disposed in the inner sleeve (23); After the optical cable (3) under test passes through the limiting ring (22), it extends into the inner sleeve (23) and is locked with the moving ring (24). As the optical cable (3) under test extends in, it drives the moving ring (24) to move towards the connector (11). The water in the water pipe (1) enters the cavity (25) formed between the moving ring (24), the inner wall of the inner sleeve (23) and the limiting ring (22) through the connector (11) to pre-wet the optical cable (3) under test in the cavity (25) and then test the optical cable (3) under test.

2. The stranded optical cable water seepage detection device as described in claim 1, characterized in that: The inner wall of the inner sleeve (23) is provided with several sliding grooves (231); The side wall of the moving ring (24) is provided with a slider (241) that corresponds to and is adapted to the slide groove (231). The movable ring (24) has a through hole (242) corresponding to the slider (241), and the through hole (242) extends to the corresponding slider (241). As the moving ring (24) moves toward the connector (11), the water in the water pipe (1) enters the chamber (25) through the through hole (242).

3. The stranded optical cable water seepage detection device as described in claim 2, characterized in that: A pair of locking blocks (232) are provided on the inner wall of the slide (231) near the end of the connector (11), and there is a gap between the two locking blocks (232); The moving ring (24) and the limiting ring (22) are connected by a number of springs (244); When the slider (241) moves into the gap between the two blocks (232), the blocks (232) clamp the slider (241), and the spring (244) is in a stretched state. When the flow rate in the water pipe (1) increases, the water flow in the connector (11) pushes the moving ring (24) to drive the slider (241) to disengage from the locking block (232). At this time, the spring (244) drives the moving ring (24) to move towards the limiting ring (22), squeezing the water in the chamber (25) from the outlet (230) into the internal cavity (210) of the fixed sleeve (21).

4. The stranded optical cable water seepage detection device as described in claim 1, characterized in that: The movable ring (24) is provided with an elastic ring (243). The inner diameter of the elastic ring (243) is smaller than the outer diameter of the optical cable (3) to be tested. When the optical cable (3) to be tested is spread out and passes through the elastic ring (243), the elastic ring (243) will clamp the optical cable (3) to be tested.

5. A connection mechanism used in the stranded optical cable water seepage detection device as described in claim 1, characterized in that, include: A fixed sleeve (21) is connected to a connector (11) on the water pipe (1); A limiting ring (22) is provided on the side of the fixed sleeve (21) away from the connector (11), and the inner diameter of the limiting ring (22) is adapted to the outer diameter of the optical cable (3) to be tested; An inner sleeve (23) is inserted inside the fixed sleeve (21); A movable ring (24) is slidably disposed in the inner sleeve (23); After the optical cable (3) under test passes through the limiting ring (22), it extends into the inner sleeve (23) and is locked with the moving ring (24). As the optical cable (3) under test extends in, it drives the moving ring (24) to move towards the connector (11). The water in the water pipe (1) enters the cavity (25) formed between the moving ring (24), the inner wall of the inner sleeve (23) and the limiting ring (22) through the connector (11) to pre-wet the optical cable (3) under test in the cavity (25).

6. The connecting mechanism as described in claim 5, characterized in that: The inner wall of the inner sleeve (23) is provided with several sliding grooves (231); The side wall of the moving ring (24) is provided with a slider (241) that corresponds to and is adapted to the slide groove (231). The movable ring (24) has a through hole (242) corresponding to the slider (241), and the through hole (242) extends to the corresponding slider (241). As the moving ring (24) moves toward the connector (11), the water in the water pipe (1) enters the chamber (25) through the through hole (242).

7. The connecting mechanism as described in claim 6, characterized in that: A pair of locking blocks (232) are provided on the inner wall of the slide (231) near the end of the connector (11), and there is a gap between the two locking blocks (232); The moving ring (24) and the limiting ring (22) are connected by a number of springs (244); When the slider (241) moves into the gap between the two blocks (232), the blocks (232) clamp the slider (241), and the spring (244) is in a stretched state. When the flow rate in the water pipe (1) increases, the water flow in the connector (11) pushes the moving ring (24) to drive the slider (241) to disengage from the locking block (232). At this time, the spring (244) drives the moving ring (24) to move towards the limiting ring (22), squeezing the water in the chamber (25) from the outlet (230) into the internal cavity (210) of the fixed sleeve (21).

8. The connecting mechanism as described in claim 5, characterized in that: The movable ring (24) is provided with an elastic ring (243). The inner diameter of the elastic ring (243) is smaller than the outer diameter of the optical cable (3) to be tested. When the optical cable (3) to be tested is spread out and passes through the elastic ring (243), the elastic ring (243) will clamp the optical cable (3) to be tested.

9. A detection method using the stranded optical cable water seepage detection equipment as described in claim 1, characterized in that, include: After the optical cable (3) under test passes through the limiting ring (22), it extends into the inner sleeve (23) and is locked with the moving ring (24). As the optical cable (3) under test extends in, it drives the moving ring (24) to move towards the connector (11). The water in the water pipe (1) enters the cavity (25) formed between the moving ring (24), the inner wall of the inner sleeve (23) and the limiting ring (22) through the connector (11) to pre-wet the optical cable (3) under test in the cavity (25) and then test the optical cable (3) under test.

10. The detection method as described in claim 9, characterized in that: When the flow rate in the water pipe (1) increases, the water flow in the connector (11) pushes the moving ring (24) to drive the slider (241) to disengage from the locking block (232). At this time, the spring (244) drives the moving ring (24) to move towards the limiting ring (22), squeezing the water in the chamber (25) from the outlet (230) into the internal cavity (210) of the fixed sleeve (21).

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