Special detection cable for optical fiber detection device

Abstract

The utility model discloses a special detection cable for an optical fiber detection device, which relates to the technical field of optical fiber detection, and is characterized by comprising a transmission cable, and a first joint and a second joint which are arranged at two ends of the transmission cable and are respectively used for being connected with the optical fiber detection device and an optical power meter, the transmission cable is sleeved with a protection tube arranged on the first connector. The detection cable is specially used for detecting the optical fiber detection device, and is connected with the device before the detection of the optical fiber detection device, so that whether the signal strength output by the optical fiber detection device meets the stable value of the detection requirement or not can be judged by matching with the optical power meter; therefore, the problem of detection misjudgment caused by insufficient output signal strength of the detection device is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber detection, in particular to a special detection cable for an optical fiber detection device. Background Art

[0002] A fiber optic detection device is a device specially designed to evaluate and analyze fiber optic performance, identify potential problems, and locate fault points in fiber optic networks. It detects the optical transmission efficiency of the fiber optic by connecting the fiber to be detected and outputting a light pulse signal of a certain intensity to the fiber optic. However, the fiber optic detection device sometimes has insufficient light pulse signal intensity. In this case, detecting the fiber optic cable may cause the operator to misjudge that the optical cable is faulty, affecting the operator's normal maintenance work.

[0003] In view of this, a design or technical improvement is now proposed to solve the above problems.

[0004] The above contents are only used to assist in understanding the technical solution of the present utility model, and do not constitute an admission that the above contents are the closest prior art. Utility Model Content

[0005] The purpose of the utility model is to solve the above-mentioned shortcomings and provide a special detection cable for an optical fiber detection device.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A detection cable dedicated to an optical fiber detection device comprises a transmission cable and a first joint and a second joint arranged at both ends of the transmission cable and respectively used to connect to the optical fiber detection device and an optical power meter; the transmission cable is externally sleeved with a protective tube arranged on the first joint.

[0008] Furthermore, the first connector includes a contact hole core connected to the pin portion of the optical fiber detection device socket, a protective shell arranged outside the contact hole core, and a movable tube rotatably arranged at one end of the protective shell away from the protective tube.

[0009] Furthermore, a guide card plate adapted to be engaged with a key portion of the socket of the optical fiber detection device is disposed at one end of the movable tube away from the protective shell, and the guide card plate protrudes outward relative to the end of the movable tube.

[0010] Furthermore, a plurality of side holes are evenly distributed on the movable tube, and fan-shaped clamping plates are rotatably arranged in the side holes. When the fan-shaped clamping plates rotate toward the inside of the movable tube, they can extend from the inner wall portion of the movable tube.

[0011] Furthermore, a thrust plate having an arcuate end and sliding along the radial direction of the movable tube is provided in the side hole, the thrust plate is hingedly connected to a connecting rod, and the end of the connecting rod away from the thrust plate is hingedly connected to the fan-shaped clamping plate; the arcuate portion of the thrust plate protrudes from the outer wall of the movable tube.

[0012] Furthermore, the movable tube is provided with an external thread, and the external thread portion is threadedly connected with a locking ring, and the locking ring can be engaged with the arc surface portion of the thrust plate when rotating.

[0013] Furthermore, a limiting ring for limiting the locking ring is fixedly provided on the movable tube.

[0014] Furthermore, a fixing plate is fixedly arranged in the side hole, and a return spring is arranged between the fixing plate and the pushed plate.

[0015] Compared with the prior art, the beneficial effect of this solution is that the detection cable is configured to be specifically used for detecting optical fiber detection devices. It is connected to the device before the optical fiber detection device is detected, and then cooperates with the optical power meter to determine whether the signal strength output by the optical fiber detection device meets the stable value required for detection, thereby avoiding the problem of insufficient output signal strength of the detection device leading to misdetection.

[0016] The detection cable is arranged through a raised guide card plate, which is convenient for operators to observe and align when plugging with the light detection device, and is convenient for plugging of the cable.

[0017] The detection cable is also provided with a rotatable fan-shaped clamping plate on the protective shell, which cooperates with the locking ring to abut against the fan-shaped clamping plate and rotate to clamp the socket part when connected to the optical fiber detection device, thereby ensuring stable connectivity and making the detection process stable and effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the protective shell in the utility model;

[0021] Figure 3 It is a disassembly schematic diagram of the movable tube and the locking ring in the utility model;

[0022] Figure 4 This is a schematic diagram of the structure inside the upper side hole of the movable tube in the utility model;

[0023] Figure 5 It is a cross-sectional schematic diagram of the upper side hole of the movable tube in the utility model;

[0024] Figure 6 It is a structural schematic diagram of the movable tube in the utility model.

[0025] In the figure: 1. transmission cable; 11. first joint; 12. second joint; 13. protective tube; 2. contact hole core; 21. protective shell; 22. movable tube; 3. guide card plate; 4. side hole; 41. fan-shaped clamp; 5. thrust plate; 51. connecting rod; 6. external thread; 61. locking ring; 62. limit ring; 7. fixing plate; 71. reset spring. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] like Figure 1-6 A special detection cable for an optical fiber detection device shown in the figure comprises a transmission cable 1 and a first connector 11 and a second connector 12 which are arranged at both ends of the transmission cable 1 and are respectively used to connect to the optical fiber detection device and the optical power meter; the transmission cable 1 is externally sleeved with a protective tube 13 arranged on the first connector 11. The detection cable is specially used to detect the output power of the optical fiber detection device. Since the conventional cable is long and is in use for a long time, it is impossible to judge its own damage, and it is difficult to use the conventional cable to detect the optical fiber detection device to determine whether its output power is stable. Therefore, the special detection cable is designed. Since it does not need to be used for a long time, it can be well preserved, so that it can ensure the stability of the transmission signal. In the detection process, it is connected to the socket part of the detection device through the first connector 11 and connected to the optical power meter through the second connector 12, so as to start the detection device to send an optical pulse signal, and receive and detect the optical power signal intensity through the optical power meter. When the error between the signal intensity detected by it and the intensity emitted by the detection device is within the set range, it can be judged that there is no problem with the detection device and it can be used for optical fiber detection.

[0028] In one embodiment, the first connector 11 includes a contact hole core 2 connected to the pin portion of the optical fiber detection device socket, a protective shell 21 arranged on the outside of the contact hole core 2, and a movable tube 22 rotatably arranged at the end of the protective shell 21 away from the protective tube 13. The end of the movable tube 22 away from the protective shell 21 is provided with a guide card plate 3 adapted to be engaged with the key portion of the optical fiber detection device socket, and the guide card plate 3 protrudes outward relative to the end of the movable tube 22. When connected to the detection device, it is first aligned with the socket key through the guide card plate 3, and then the guide card plate 3 is inserted from the gap between the keys, so that the internal contact hole core 2 and the pin are aligned and plugged in, and then the movable tube 22 is rotated so that the guide card plate 3 is turned to the rear side of the socket key and abuts against it, thereby completing the cable plugging work.

[0029] In one embodiment, a plurality of side holes 4 are evenly distributed on the movable tube 22, and a fan-shaped clamping plate 41 is rotatably arranged in the side hole 4. When the fan-shaped clamping plate 41 rotates toward the inner side of the movable tube 22, it can extend from the inner wall portion of the movable tube 22. A thrust plate 5 having an arc surface at one end and sliding along the radial direction of the movable tube 22 is arranged in the side hole 4. The thrust plate 5 is hingedly connected to a connecting rod 51, and one end of the connecting rod 51 away from the thrust plate 5 is hingedly connected to the fan-shaped clamping plate 41; the arc surface portion of the thrust plate 5 protrudes from the outer wall of the movable tube 22. The movable tube 22 is also provided with an external thread 6, and the external thread 6 is also threadedly connected to a locking ring 61. When the locking ring 61 is rotated, it can abut against the arc surface of the pushed plate 5. When the movable tube 22 is docked with the socket part of the optical fiber detection device, the locking ring 61 is rotated to abut against the arc surface of the pushed plate 5, and then the fan-shaped clamping plate 41 is pushed to rotate through the connecting rod 51 to abut against the socket port of the detection device, thereby locking the connection, so that the detection process can maintain a high degree of stability.

[0030] In one embodiment, a limiting ring 62 for limiting the locking ring 61 is fixedly provided on the movable tube 22. Through the setting of the limiting ring 62, the locking ring 61 will not rotate excessively and thus detach from the movable tube 22 and cause loss.

[0031] In one embodiment, a fixing plate 7 is also fixedly provided in the side hole 4, and a reset spring 71 is provided between the fixing plate 7 and the pushed plate 5. When the detection is completed and the cable needs to be removed from the optical fiber detection device, the locking ring 61 is first rotated to disengage the locking ring from the pushed plate 5, and then the pushed plate 5 is reset under the action of the reset spring 71, and drives the fan-shaped clamping plate 41 to rotate back to its original position, thereby loosening the socket port of the detection device, and then the movable tube 22 is rotated to displace the guide card plate 3 at its upper end from the socket key, so that the first connector 11 can be pulled out of the socket.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A detection cable for an optical fiber detection device, characterized in that: It comprises a transmission cable (1) and a first connector (11) and a second connector (12) which are arranged at two ends of the transmission cable (1) and are used to connect to an optical fiber detection device and an optical power meter respectively; The transmission cable (1) is externally sleeved with a protective tube (13) arranged on the first joint (11).

2. The detection cable for optical fiber detection device according to claim 1, characterized in that: The first connector (11) comprises a contact hole core (2) connected to the pin portion of the optical fiber detection device socket, a protective shell (21) arranged outside the contact hole core (2), and a movable tube (22) rotatably arranged at one end of the protective shell (21) away from the protective tube (13).

3. The detection cable for optical fiber detection device according to claim 2, characterized in that: The end of the movable tube (22) away from the protective shell (21) is provided with a guide card plate (3) adapted to be engaged with the key portion of the optical fiber detection device socket, and the guide card plate (3) protrudes outward relative to the end of the movable tube (22).

4. The detection cable for optical fiber detection device according to claim 3, characterized in that: The movable tube (22) is evenly provided with a plurality of side holes (4), and a fan-shaped clamping plate (41) is rotatably arranged in the side holes (4). When the fan-shaped clamping plate (41) rotates toward the inside of the movable tube (22), it can extend from the inner wall portion of the movable tube (22).

5. The detection cable for optical fiber detection device according to claim 4, characterized in that: A thrust plate (5) having an arcuate end and slidingly limited along the radial direction of the movable tube (22) is arranged in the side hole (4); the thrust plate (5) is hingedly connected to a connecting rod (51); an end of the connecting rod (51) away from the thrust plate (5) is hingedly connected to a fan-shaped clamping plate (41); the arcuate portion of the thrust plate (5) protrudes from the outer wall of the movable tube (22).

6. The detection cable for optical fiber detection device according to claim 5, characterized in that: The movable tube (22) is also provided with an external thread (6), and the external thread (6) is also threadedly connected with a locking ring (61). When the locking ring (61) rotates, it can abut against the arc surface of the thrust plate (5).

7. The detection cable for optical fiber detection device according to claim 6, characterized in that: A limiting ring (62) for limiting the locking ring (61) is also fixedly arranged on the movable tube (22).

8. The detection cable for optical fiber detection device according to claim 4, characterized in that: A fixing plate (7) is also fixedly arranged in the side hole (4), and a return spring (71) is arranged between the fixing plate (7) and the pushed plate (5).

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