A protective device for monitoring and sensing optical cables against external damage

Abstract

The utility model relates to the technical field of optical cable protection equipment, and in particular to a protective device for monitoring sensor optical cables to prevent external damage. It includes a sensor optical cable, a cable well cover, a protective cover and a connecting mechanism. The sensor optical cable is laid in a cable duct, the cable well is arranged on the cable duct, the cable well cover is arranged above the cable well, the protective cover is installed on the cable duct, the sensor optical cable passes through the protective cover and is slidably connected to the protective cover, the connecting mechanism is arranged on the protective cover, the connecting mechanism is located between the sensor optical cable and the cable well cover, and is used to connect the sensor optical cable and the cable well cover. The utility model can limit the placement state of the sensor optical cable located in the protective cover through a collar, a limit rod and a limit spring, and can use a coil spring to buffer the pulling of the sensor optical cable by the connecting rope. In summary, it can reduce the situation where the sensor optical cable is affected by the external environment and misjudged theft, and reduce the waste of human resources in patrol inspections.

Description

Technical Field

[0001] The utility model relates to the technical field of optical cable protection equipment, in particular to a protective device for an anti-external damage monitoring sensor optical cable. Background Art

[0002] With the continuous acceleration of the pace of urban transformation, cables account for an increasingly larger proportion of urban power grids. In recent years, urban construction has expanded rapidly, and large-scale municipal projects such as subways, elevated construction and river regulation have been fully launched. The situation of cable protection against external force damage is becoming increasingly severe. Traditional prevention of cable damage by external forces relies on regular manual inspections. Since manual inspections are passive protection, it is impossible to grasp the construction conditions near cable pipelines in real time. At the same time, with the continuous increase in the number of cables in recent years and the expansion of the jurisdiction area, the daily inspections of operating personnel are also becoming more and more intense.

[0003] If a thief wants to enter the cable trench to steal cables, he must open the cable well cover and enter through the cable well. Therefore, it is necessary to lay a sensor optical cable near the cable well for monitoring. The sensor optical cable is used as a sensing component for alarm operation. When it is touched, squeezed and vibrated by the outside world, the transmission signal will fluctuate. By sensing the signal fluctuation, it can quickly feed back to the monitoring center. The monitoring center makes judgments based on the model fluctuations and issues an alarm. However, the sensor optical cable is easily affected by the external environment and may move or collide, which can easily lead to misjudgment of theft, which will indirectly waste patrol human resources. Utility Model Content

[0004] In view of the problems existing in the background technology, a protective device for an anti-external damage monitoring sensor optical cable is proposed.

[0005] The utility model proposes a protective device for an anti-external damage monitoring sensor optical cable, comprising a sensor optical cable laid in a cable duct, a cable well being arranged on the cable duct, a cable well cover being arranged above the cable well, a protective cover being installed on the cable duct, the sensor optical cable passing through the protective cover and being slidably connected with the protective cover, a connecting mechanism being arranged on the protective cover, the connecting mechanism being arranged between the sensor optical cable and the cable well cover and being used for connecting the sensor optical cable and the cable well cover, the protective cover being composed of an upper arc cover and a lower arc cover, the upper arc cover and the lower arc cover being connected by a plurality of bolts, two limit assemblies being installed on the upper arc cover, the limit assemblies comprising a collar member sleeved on the sensor optical cable, a limit rod being installed on the upper arc cover, the limit rod passing through the collar member and being slidably connected with the collar member, a limit block being installed at one end of the limit rod, a limit spring being sleeved on the limit rod, one end of the limit spring being connected with the limit block, and the other end of the limit spring being connected with the collar member.

[0006] Preferably, a mounting block is installed on the lower arc-shaped cover, mounting bolts are provided on the mounting block, and the mounting block is connected to the cable conduit through the mounting bolts.

[0007] Preferably, the connecting mechanism includes a buffer cylinder installed on the upper arc cover, a sliding disk is slidably installed in the buffer cylinder, a connecting piece is installed on the sliding disk, the connecting piece is connected to the sensing optical cable, a fixing ring is installed on the buffer cylinder, a pulling disk is slidably installed on the buffer cylinder, a connecting spring is installed on the pulling disk, the bottom end of the connecting spring is connected to the sliding disk, a buffer assembly is installed on the pulling disk, and a connecting rope is provided on the buffer cylinder, and the connecting rope is used to connect the cable well cover and the buffer assembly.

[0008] Preferably, the buffer assembly includes a connection frame installed on the lifting plate, a coil spring is arranged in the connection frame, and one side of the coil spring extends out of the connection frame and is connected to one end of the connection rope.

[0009] Preferably, the connecting member is composed of two arc rings and a connecting rod. The two arc rings are sleeved on the sensing optical cable by bolt connection. The connecting rod is installed on the arc ring one located at a high position, and the top end of the connecting rod is connected to the sliding disk.

[0010] Compared with the prior art, the utility model has the following beneficial technical effects:

[0011] By setting a connection between the cable well cover and the sensor optical cable, when the thief moves the cable well cover, the sensor optical cable is pulled by force, causing the transmission signal to fluctuate, so that the monitoring center can detect the fluctuation signal and determine whether the cable well cover has been displaced, and then refer to determine whether there is a theft, and transmit the signal to the monitoring center to issue an alarm and provide the theft address, thereby improving the protection of the cable;

[0012] By setting the collar, limit rod and limit spring, the placement state of the sensor optical cable located in the protective cover can be limited, reducing the influence of the external environment on the sensor optical cable section located in the protective cover, and the winding spring is used to buffer the pulling of the sensor optical cable by the connecting rope, so as to avoid the movement of the sensor optical cable due to the slight influence of the external environment on the cable well cover. In summary, the influence of the external environment on the sensor optical cable can be reduced to reduce the situation of misjudgment of theft and reduce the waste of human resources in inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a schematic cross-sectional structure diagram of the protective cover and the buffer cylinder in the utility model;

[0015] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A shown;

[0016] Figure 4 This is a schematic diagram of the appearance structure of the utility model;

[0017] Figure 5 It is a schematic diagram of the signal transmission structure of the sensing optical cable in the utility model.

[0018] Figure numerals: 1. cable duct; 2. cable well cover; 3. sensor optical cable; 4. protective cover; 5. buffer cylinder; 6. mounting block; 7. mounting bolt; 8. collar; 9. limit rod; 10. limit block; 11. limit spring; 12. sliding plate; 13. connecting piece; 14. connecting spring; 15. fixing ring; 16. lifting plate; 17. connecting frame; 18. coil spring; 19. connecting rope. DETAILED DESCRIPTION

[0019] like Figure 1-Figure 4 As shown, the utility model provides a protective device for preventing external damage of a monitoring sensor optical cable, comprising: a sensor optical cable 3, a cable well cover 2, a protective cover 4 and a connecting mechanism.

[0020] like Figure 1 and Figure 2 As shown, the sensing optical cable 3 is laid in the cable duct 1, the cable well is arranged on the cable duct 1, the cable well cover 2 is arranged above the cable well, the protective cover 4 is installed on the cable duct 1, the protective cover 4 is composed of an upper arc cover and a lower arc cover, and the upper arc cover and the lower arc cover are connected by a plurality of bolts. In this way, the protective cover 4 can be easily removed from the sensing optical cable 3, and a mounting block 6 is installed on the lower arc cover, and a mounting bolt 7 is arranged on the mounting block 6. The mounting block 6 is connected to the cable duct 1 through the mounting bolt 7, the sensing optical cable 3 passes through the protective cover 4 and is slidably connected to the protective cover 4, and a connecting mechanism is arranged on the protective cover 4, and the connecting mechanism is located between the sensing optical cable 3 and the cable well cover 2, and is used to connect the sensing optical cable 3 and the cable well cover 2.

[0021] like Figure 2 As shown, two limit assemblies are installed on the upper arc cover, and the two limit assemblies are symmetrically arranged. The limit assembly includes a ring member 8 sleeved on the sensing optical cable 3, and a limit rod 9 is installed on the upper arc cover. The limit rod 9 passes through the ring member 8 and is slidably connected with the ring member 8. The ring member is composed of two arc rings 2, and the two arc rings 2 are connected by bolts to form a circular ring, which is fixedly sleeved on the outer wall of the sensing optical cable 3. A limit block 10 is installed at one end of the limit rod 9, and a limit spring 11 is sleeved on the limit rod 9. One end of the limit spring 11 is connected to the limit block 10, and the other end of the limit spring 11 is connected to the ring member 8. Through the setting of the limit assembly, the placement of the sensing optical cable 3 located in the protective cover 4 can be limited to prevent the connection between it and the cable well cover 2 from being affected by the external environment and causing wrong judgment.

[0022] like Figure 2 and Figure 3As shown, the connection mechanism includes a buffer cylinder 5 installed on the upper arc cover, a sliding plate 12 is slidably installed in the buffer cylinder 5, a connecting member 13 is installed on the sliding plate 12, the connecting member 13 is composed of two arc rings and a connecting rod, the two arc rings are sleeved on the sensing optical cable 3 by bolt connection, the connecting rod is installed on the arc ring 1 located at a high position, the top of the connecting rod is connected to the sliding plate 12, the connecting member 13 is connected to the sensing optical cable 3, a fixing ring 15 is installed on the buffer cylinder 5, and a lifting plate 16 is slidably installed on the buffer cylinder 5. A connecting spring 14 is installed on the disk 16, and the bottom end of the connecting spring 14 is connected to the sliding disk 12. A buffer assembly is installed on the lifting disk 16. A connecting rope 19 is provided on the buffer cylinder 5. A through hole is opened at the top of the buffer cylinder 5. The connecting rope 19 passes through the through hole and is slidably connected in the through hole. The connecting rope 19 is used to connect the cable well cover 2 and the buffer assembly. The buffer assembly includes a connecting frame 17 installed on the lifting disk 16, and a coil spring 18 is provided in the connecting frame 17. One side of the coil spring 18 extends out of the connecting frame 17 and is connected to one end of the connecting rope 19.

[0023] like Figure 5 As shown, in this embodiment, Figure 5 It is divided into two parts, the upper part is the normal signal transmission of the sensor optical cable, and the lower part is the signal transmission when the sensor optical cable is affected by external pulling, collision, etc.

[0024] In this embodiment, before use, it is necessary to first install the protective cover 4 on the sensing optical cable 3, and then connect one end of the connecting rope 19 to the cable well cover 2;

[0025] When the cable is stolen, the thief pulls the cable well cover 2 to pull the connecting rope 19, and then pulls the coil spring 18 and the connecting frame 17, and then drives the lifting plate 16, the connecting spring 14 and the sliding plate 12 to rise, and then pulls the sensing optical cable 3 through the connecting piece 13. When the sensing optical cable 3 is pulled, its signal transmission fluctuates, and then an alarm can be issued in the monitoring center, and the theft location can be established, thereby improving the protection of the cable;

[0026] During daily use, the coil spring 18 can form a buffer between the sensing optical cable 3 and the cable well cover 2 to prevent the well cover from being slightly affected by the external environment and affecting the sensing optical cable 3, thereby reducing the number of misjudgments of optical cable theft and making more effective use of patrol human resources.

[0027] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A protective device for an anti-external damage monitoring sensor optical cable, comprising: A sensing optical cable (3) is laid in a cable duct (1), and a cable well cover (2) is provided at the wellhead of a cable well connected to the cable duct (1), wherein: A protective cover (4) is installed on the cable duct (1), and the sensing optical cable (3) passes through the protective cover (4) and is slidably connected to the protective cover (4); The protective cover (4) is provided with a connecting mechanism, which is arranged between the sensing optical cable (3) and the cable well cover (2) and is used to connect the sensing optical cable (3) and the cable well cover (2); The protective cover (4) is composed of an upper arc cover and a lower arc cover, and the upper arc cover and the lower arc cover are connected by a plurality of bolts. Two limit assemblies are installed on the upper arc cover, and the limit assemblies include a collar (8) sleeved on the sensing optical cable (3). A limit rod (9) is installed on the upper arc cover, and the limit rod (9) passes through the collar (8) and is slidably connected to the collar (8). A limit block (10) is installed at one end of the limit rod (9), and a limit spring (11) is sleeved on the limit rod (9), and one end of the limit spring (11) is connected to the limit block (10), and the other end of the limit spring (11) is connected to the collar (8).

2. The protective device for the anti-external damage monitoring sensor optical cable according to claim 1, characterized in that: A mounting block (6) is mounted on the lower arc-shaped cover, a mounting bolt (7) is provided on the mounting block (6), and the mounting block (6) is connected to the cable duct (1) via the mounting bolt (7).

3. The protective device for the anti-external damage monitoring sensor optical cable according to claim 2, characterized in that: The connecting mechanism comprises a buffer cylinder (5) mounted on the upper arc cover, a sliding disk (12) being slidably mounted in the buffer cylinder (5), a connecting member (13) being mounted on the sliding disk (12), the connecting member (13) being connected to the sensing optical cable (3), a fixing ring (15) being mounted on the buffer cylinder (5), a lifting disk (16) being slidably mounted on the buffer cylinder (5), a connecting spring (14) being mounted on the lifting disk (16), the bottom end of the connecting spring (14) being connected to the sliding disk (12), a buffer assembly being mounted on the lifting disk (16), and a connecting rope (19) being arranged on the buffer cylinder (5), the connecting rope (19) being used to connect the cable well cover (2) and the buffer assembly.

4. The protective device for the monitoring sensor optical cable against external damage according to claim 3 is characterized in that: The buffer assembly comprises a connection frame (17) mounted on the lifting plate (16), a coil spring (18) is arranged in the connection frame (17), one side of the coil spring (18) extends out of the connection frame (17) and is connected to one end of a connection rope (19).

5. The protective device for the monitoring sensor optical cable against external damage according to claim 3, characterized in that: The connecting member (13) is composed of two arc-shaped rings and a connecting rod. The two arc-shaped rings are sleeved on the sensing optical cable (3) by bolt connection. The connecting rod is installed on the arc-shaped ring located at a high position. The top end of the connecting rod is connected to the sliding plate (12).

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