A water leakage detection device for optical cable

Abstract

The utility model discloses a kind of optical cable water seepage detection devices, including base, multiple water reservoirs are placed on the base upper portion along its length direction, horizontal bracing plate is fixed on the base top, the front end of the horizontal bracing plate swing installation has rotating plate and the driving device for driving rotating plate longitudinal rotation, the rotating plate front end upper portion is vertically fixed and installed optoelectronic sensor, the top detection end head outer periphery of optoelectronic sensor is sealed and fixed with water collection cover;When target optical cable end part appears leakage, water seepage will directly flow to the lowest place of diversion box and through liquid guide pipe, water less than cm³ is guided into water collection cover in first time, at this time, the light path of optoelectronic sensor is blocked by water or the change of reflection intensity, sensor will immediately output signal to control unit, then alarm is sent through siren, compared with prior art, without long time waiting during water gathering process, it can be detected and alarm is sent in the first time of leakage.

Description

Technical Field

[0001] This utility model relates to the field of optical cable quality testing technology, specifically to an optical cable water seepage detection device. Background Technology

[0002] Optical cable water penetration testing is a test process that uses specific methods to determine whether water has seeped into the optical cable due to external force or material defects. It is mainly used to evaluate the sealing performance and long-term reliability of the optical cable. There are several existing methods for optical cable water penetration testing, including the high-pressure water injection method. This method involves connecting one end of a 1-meter-long sample cable to the port of a device with a high-pressure water injection source, while the other end of the cable is placed in a water collection tank. After waiting for 1 hour or a certain period of time, the presence of water in the collection tank is observed. The presence of water indicates that the optical cable and the corresponding batch are unqualified or of poor quality. In related technologies, such as the optical cable water leakage detection device disclosed in patent CN221056009U, the device electrically connects the electrode posts and the electrode posts to an alarm. Water is then injected into the target optical cable, applying high water pressure to one end. The other end of the cable is inserted into a corrugated connector. When the cable leaks, water flows through the connector into a storage tank, accumulating until the water level rises and contacts the lower ends of the electrode posts and electrode posts. The water then connects the circuitry of the electrode posts and electrode posts, powering the alarm and automatically triggering an alarm when the cable fails to meet the requirements. This eliminates the need for users to repeatedly observe the cable, improving the ease of detection.

[0003] While the aforementioned technical solution can achieve automatic alarm for water seepage in optical cables, in actual testing, the water in the reservoir needs to be filled to a high level before the electrode posts and alarm can be triggered, resulting in a relatively long waiting time, which affects the efficiency of the next round of testing. Furthermore, since the height of the electrode posts is fixed, it cannot immediately reflect the seepage rate and quality parameters of the corresponding non-conforming cable samples. Additionally, after the reservoir is full, the water needs to be emptied and released one by one, and there is a possibility of overflowing if not monitored.

[0004] Therefore, a fiber optic cable water seepage detection device is provided to solve the problems and shortcomings mentioned above. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0006] Therefore, the purpose of this utility model is to provide a fiber optic cable water seepage detection device to solve the problem mentioned in the background art. In existing fiber optic cable water seepage detection devices, the water from the seepage must be filled to a high level in the storage tank before the electrode column and alarm can be triggered, resulting in a long waiting time that affects the efficiency of the next round of testing. Furthermore, since the height of the electrode column is fixed, it cannot immediately reflect the seepage rate and quality parameters of the corresponding non-conforming cable sample. Additionally, after the storage tank is full, the water needs to be poured out and released one by one, which may lead to overflow if not monitored.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a fiber optic cable water seepage detection device, comprising a base, a plurality of water storage tanks placed on the upper part of the base along its length, a cross brace fixed above the base, a rotating plate and a drive device for driving the rotating plate to rotate longitudinally are movably installed at the front end of the cross brace, a photoelectric sensor is vertically fixed on the upper part of the front end of the rotating plate, and a water collection cover is sealed and fixed on the outer periphery of the top detection end of the photoelectric sensor. The optical cable positioning and diversion box is located above the photoelectric sensor and is fixedly installed with the base. One end of the optical cable positioning and diversion box has a placement port for easy insertion of the free end of the optical cable. A liquid guide tube is fixedly connected to one side of the bottom of the optical cable positioning and diversion box, and the liquid guide tube is located directly above the water collection cover.

[0008] As a preferred embodiment of the optical cable water seepage detection device of this utility model, the upper part of the base has a placement groove that matches the water storage tank, a drain valve is provided on one side of the bottom of the water storage tank, and the top of the water storage tank is a straight open opening.

[0009] As a preferred embodiment of the optical cable water seepage detection device described in this utility model, a liquid level detector corresponding to the water storage tank is also provided on one side of the cross support plate.

[0010] In a preferred embodiment of the optical cable water seepage detection device of this utility model, a support frame is fixed to the upper rear part of the base, the rear end of the cross brace is fixed to one side of the support frame, and a support beam fixed to the upper side of the support frame is also fixed to the support beam and fixedly connected to the optical cable positioning and guiding box.

[0011] As a preferred embodiment of the optical cable water seepage detection device of this utility model, the front end and inner side of the cross brace plate have mountings corresponding to the rotating plate, the rear ends of the rotating plate are fixed with rotating shafts rotatably mounted on the inner side of the mountings, and the outer side of the cross brace plate is fixed with a rotary motor for driving the rotating shafts to rotate axially in both directions.

[0012] As a preferred embodiment of the optical cable water seepage detection device of this utility model, the upper part of the front end of the rotating plate has a positioning groove that matches the lower end of the photoelectric sensor, and a locking screw is threadedly connected to one side of the rotating plate, with the bolt of the locking screw extending into the inner side of the positioning groove.

[0013] As a preferred embodiment of the optical cable water seepage detection device of this utility model, the bottom inner side of the optical cable positioning and diversion box has a diversion slope that gradually slopes downward from the upper end of the diversion tube, the bottom opening of the placement port has a "V" structure, a stabilizing bolt is threadedly connected to one side of the top of the optical cable positioning and diversion box, and an observation port is provided on the other side of the top of the optical cable positioning and diversion box.

[0014] In a preferred embodiment of the optical cable water seepage detection device described in this utility model, an independent number plate is also provided on the upper end of the support beam.

[0015] Compared with the prior art, the beneficial effects of this utility model are: (i) This optical cable water seepage detection device first inserts the free end of the target optical cable, which has been connected to a high-pressure water source, into the optical cable positioning and diversion box and tightens it. Then, the detection operation begins. When leakage occurs at the end of the target optical cable, the seepage water will flow directly to the lowest point of the diversion box and be guided into the water collection cover in the first time through the liquid guide tube. At this time, the light path of the photoelectric sensor is blocked by water or the reflection intensity changes. The sensor will immediately output a signal to the control unit, and then issue an alarm through the alarm. Compared with the existing technology, there is no need for a long wait during the water accumulation process. The leakage can be detected and an alarm can be issued in the first time. The quality parameters of the target optical cable sample can be analyzed based on the first leakage time, and the efficiency of optical cable water seepage detection is further improved.

[0016] (ii) This optical cable leakage detection device, since the water storage tank only accepts a small amount of leakage each time it is tested, compared with the prior art which requires emptying and discharging the water storage tank after each leakage test, can be tested for a long time in actual operation without frequent emptying and releasing of the tank water. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall external structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of a detection unit of this utility model; Figure 3 This is a schematic diagram of the connection structure between the cross brace plate and the connecting plate of this utility model; Figure 4 This utility model Figure 2 Schematic diagram of a partial structural detail; Figure 5 This is a schematic diagram of the external structure of the optical cable positioning and diversion box of this utility model; Figure 6 This is a side view of the internal structure of the optical cable positioning and diversion box of this utility model.

[0018] In the diagram: 100, base; 1001, placement slot; 110, support frame; 120, support beam; 200, water storage tank; 210, drain valve; 300, cross brace; 3001, mounting slot; 310, rotating plate; 3101, positioning slot; 320, locking screw; 330, rotating shaft; 340, rotary motor; 400, photoelectric sensor; 410, water collection cover; 500, optical cable positioning guide box; 5001, placement port; 5002, observation port; 510, stabilizing bolt; 520, liquid guide tube; 600, label; 700, level gauge. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0022] Figures 1-6 The diagram shown is a complete structural schematic of the optical cable water leakage detection device of this utility model. Please refer to [link / reference]. Figures 1-6 This embodiment of a fiber optic cable water leakage detection device includes a base (100), on which multiple water storage tanks (200) are placed along its length. A cross brace (300) is fixed above the base (100). A rotating plate (310) and a driving device for driving the rotating plate (310) to rotate longitudinally are movably mounted at the front end of the cross brace (300). A photoelectric sensor (400) is vertically fixed at the upper front end of the rotating plate (310). A water collection cover (410) is sealed and fixed on the outer periphery of the top detection end of the sensor (400); the optical cable positioning and diversion box (500) is located above the photoelectric sensor (400) and is fixedly installed with the base (100). One end of the optical cable positioning and diversion box (500) has a placement port (5001) for easy insertion of the free end of the optical cable. A liquid guide tube (520) is fixedly connected to one side of the bottom of the optical cable positioning and diversion box (500), and the liquid guide tube (520) is located directly above the water collection cover (410).

[0023] See Figure 1 , Figure 2 and Figure 3 The base (100) has a placement slot (1001) on its upper part that matches the water storage tank (200). A drain valve (210) is provided on one side of the bottom of the water storage tank (200), and the top of the water storage tank (200) is a straight open opening. It should be noted that the drain valve (210) here can be manual or solenoid valve. In this embodiment, a solenoid valve is preferred. Specifically, by setting a water storage tank (200) on the base (100) corresponding to the optical cable to be tested, the water seeping out during the test can be collected. When the water accumulates to a large extent, the drain valve (210) is opened to drain the water. The drain valve (210) can be extended to the sewer network or water storage device through an external pipeline. Compared with the prior art, which requires emptying and draining the water storage tank after each leakage test, since the water storage tank (200) only collects a small amount of seepage water each time it is tested, it can be tested for a long time in actual operation without frequent emptying and releasing of the tank water.

[0024] Furthermore, as a preferred embodiment, a level gauge (700) corresponding to the water storage tank (200) is also provided on one side of the cross brace (300). It is understood that the level gauge (700) can be a conventional ultrasonic level gauge, etc., and is not limited thereto. The level gauge (700) can monitor the water level in the water storage tank (200) in real time. For example, when the water level is about to reach the upper limit, the information can be fed back to the control center, and the control center can remind the staff to perform drainage operations through the alarm device. Of course, if the drain valve (210) is normally open, the level gauge (700) does not need to be used. It can be set according to actual needs.

[0025] See Figure 1 and Figure 2 A support frame (110) is fixed to the rear of the upper end of the base (100), and the rear end of the cross brace (300) is fixed to one side of the support frame (110). A support beam (120) that is fixedly connected to the optical cable positioning and diversion box (500) is also fixed to one side of the upper end of the support frame (110). With the cooperation of the support frame (110), the support beam (120) and the base (100), the optical cable water seepage detection device is formed as a whole, which is convenient for use and operation.

[0026] See Figure 1 , Figure 2 , Figure 3 and Figure 4The front end and inner side of the cross brace (300) have mounting (3001) corresponding to the rotating plate (310). The rear ends of the rotating plate (310) are fixed with rotating shafts (330) rotatably mounted inside the mounting (3001). The outer side of the cross brace (300) is fixed with a rotary motor (340) for driving the rotating shafts (330) to rotate axially in both directions. The upper front end of the rotating plate (310) has a positioning groove (3101) that matches the lower end of the photoelectric sensor (400). A locking screw (320) is threaded on one side of the rotating plate (310), and the bolt of the locking screw (320) extends into the inner side of the positioning groove (3101). The positioning groove (3101) here matches the contour of the corresponding photoelectric sensor (400). Other clamping methods can also be used to match and replace the corresponding sensor. It is not limited to this. It should be noted that the photoelectric sensor (400) here is a general term for photoelectric sensors / sensors. In actual applications, there are photoelectric liquid level sensors for specific applications. Simply put, the photoelectric sensor uses the principle of light reflection or transmission. When water is submerged in the detection end of the sensor, the light path is blocked by water or the reflection intensity changes. The sensor immediately outputs a signal or transmits the signal to the control unit. It has a short response time (millisecond level) and is suitable for high precision and fast detection. It will not be described in detail here. In this embodiment, since the photoelectric sensor (400) needs to detect water seepage from top to bottom, the photoelectric sensor (400) is set to be vertically inverted. A circumferentially sealed water collection cover 410 is set at the detection end of the sensor. The water collection cover 410 collects and detects the water that leaks from the optical cable for the first time.

[0027] See Figure 2 Figure 5 and Figure 6 The bottom inner side of the optical cable positioning and diversion box (500) has a diversion ramp that gradually slopes downwards from the upper end of the diversion tube (520). The bottom opening of the placement port (5001) has a "V" shape. A stabilizing bolt (510) is threaded onto one side of the top of the optical cable positioning and diversion box (500), and an observation port (5002) is located on the other side of the top of the optical cable positioning and diversion box (500). The V-shaped structure can center the inserted optical cable end, and the stabilizing bolt (510) can be used to position and lock the optical cable end. Compared with the prior art, the fixing operation is simpler and less labor-intensive. In addition, the bottom of the diversion tube (520) has a tapered structure, which can automatically release when the seepage reaches a certain amount, and the seepage water from the optical cable can be directly guided to the detection end of the photoelectric sensor 400 through the diversion tube (520).

[0028] See Figure 2The upper end of the support beam (120) is also provided with an independent label (600). It should be noted that the label (600) in this embodiment is used to mark the test number corresponding to the optical cable to avoid confusion between the optical cable and the testing structure. In practical applications, the label (600) can also be in the form of a display screen or used in conjunction with an alarm light, which can light up to indicate the first time water seepage occurs in the optical cable. There are no limitations on this, and it can be set according to actual needs.

[0029] It should be noted that this implementation device is controlled by an external controller (such as a PLC) and system to achieve the operation of the device. In addition, an alarm is electrically connected to the controller, which will not be described in detail here.

[0030] In summary, when using this device, first insert the free end of the target optical cable, which has been connected to a high-pressure water source, into the optical cable positioning and diversion box 500 and tighten it. Then, the detection operation begins. When leakage occurs at the end of the target optical cable, the seepage water will flow directly to the lowest point of the diversion box and be guided into the water collection cover 410 through the liquid guide tube 520. At this time, the light path of the photoelectric sensor 400 is blocked by water or the reflection intensity changes. The sensor will immediately output a signal to the control unit, and then issue an alarm through the alarm. Compared with the existing technology, there is no long waiting time during the water accumulation process. The leakage can be detected and an alarm can be issued in the first time. The quality parameters of the target optical cable sample can be analyzed based on the first leakage time, and the efficiency of optical cable water leakage detection is further improved. Finally, after the photoelectric sensor 400 detects the leakage for the first time, the rotary motor 340 will immediately drive the rotating plate 310 and the sensor to rotate clockwise, and the water in the water collection cover 410 will be poured into the water storage tank 200 below. This action is maintained until the staff replaces the optical cable to be tested. It is simple and easy to use.

[0031] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. 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. A device for detecting water leakage in optical cables, characterized in that, Includes a base (100), on which multiple water storage tanks (200) are placed along its length on the upper part of the base (100), and a cross brace (300) is fixed above the base (100). A rotating plate (310) and a driving device for driving the rotating plate (310) to rotate longitudinally are movably installed at the front end of the cross brace (300). A photoelectric sensor (400) is vertically fixed on the upper part of the front end of the rotating plate (310), and a water collection cover (410) is sealed and fixed on the outer periphery of the top detection end of the photoelectric sensor (400). The optical cable positioning and diversion box (500) is located above the photoelectric sensor (400) and is fixedly installed with the base (100). One end of the optical cable positioning and diversion box (500) has a placement port (5001) for easy insertion of the free end of the optical cable. A liquid guide tube (520) is fixedly connected to one side of the bottom of the optical cable positioning and diversion box (500), and the liquid guide tube (520) is located directly above the water collection cover (410).

2. The optical cable water leakage detection device according to claim 1, characterized in that: The base (100) has a placement slot (1001) on the upper part that matches the water storage tank (200), a drain valve (210) is provided on one side of the bottom of the water storage tank (200), and the top of the water storage tank (200) is a straight open opening.

3. The optical cable water leakage detection device according to claim 1, characterized in that: A level gauge (700) corresponding to the water storage tank (200) is also provided on one side of the cross brace (300).

4. The optical cable water leakage detection device according to claim 1, characterized in that: The base (100) is fixed with a support frame (110) at the rear of its upper end. The rear end of the cross brace (300) is fixed to one side of the support frame (110). The support frame (110) is also fixed with a support beam (120) that is fixedly connected to the optical cable positioning and guiding box (500) on one side of its upper end.

5. The optical cable water leakage detection device according to claim 1, characterized in that: The front end and inner side of the cross brace (300) have mounting (3001) corresponding to the rotating plate (310). The rear ends of the rotating plate (310) are fixed with rotating shafts (330) rotatably mounted inside the mounting (3001). The outer side of the cross brace (300) is fixed with a rotary motor (340) for driving the rotating shafts (330) to rotate axially in both directions.

6. The optical cable water leakage detection device according to claim 1, characterized in that: The upper front end of the rotating plate (310) has a positioning groove (3101) that matches the lower end of the photoelectric sensor (400). A locking screw (320) is threaded on one side of the rotating plate (310), and the bolt of the locking screw (320) extends into the inner side of the positioning groove (3101).

7. The optical cable water leakage detection device according to claim 1, characterized in that: The bottom inner side of the optical cable positioning and diversion box (500) has a diversion slope that gradually slopes downward from the upper end of the diversion tube (520). The bottom opening of the placement port (5001) has a "V" shape. A stabilizing bolt (510) is threaded on one side of the top of the optical cable positioning and diversion box (500). An observation port (5002) is located on the other side of the top of the optical cable positioning and diversion box (500).

8. The optical cable water leakage detection device according to claim 4, characterized in that: The upper end of the support beam (120) is also equipped with an independent label (600).

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