Optical cable tail end protection device and optical cable tail end protection system

Abstract

The utility model discloses a kind of optical cable tail end protection device and optical cable tail end protection system, the cable tail end protection device includes protector and fixed edge;Protector is used to accommodate optical cable tail end;Fixed edge is arranged on protector, and fixed edge is equipped with the U-shaped fixing structure for fixing optical cable tail end on it.The optical cable tail end protection system includes the optical cable tail end protection device.U-shaped fixing structure is U-shaped, it can better wrap and hold optical cable, prevent optical cable from sliding out or displacement in U-shaped fixing structure, provide more stable support, greatly reduce the probability that optical cable tail end falls off from protector.Fixing plate is connected to and fixed on fixed edge, form clamping structure and tighten optical cable, when optical cable is lowered or lifted etc. Movement, ensure that optical cable tail end does not separate from protector, realize the protection to optical cable tail end.

Description

Technical Field

[0001] This utility model relates to the field of optical cable protection technology for underground installations, specifically to an optical cable tail protection device and an optical cable tail protection system. Background Technology

[0002] With the continuous development of oil logging technology, the process of installing optical cables outside the casing has become increasingly mature. Downhole optical cable installation technology has become the foundation of reservoir geophysical operations. For long-term monitoring of oil and gas wells, the application of optical cables is an effective measure. Currently, optical cables are prone to friction with the well wall when run along with the casing, causing cable breakage and resulting in the loss of fiber optic signals. Due to the complexity of the downhole environment, it is difficult to completely protect the optical cables run outside the casing.

[0003] Conventional optical cable protection methods only involve installing a straightener or protector at the sleeve coupling to protect the cable end. However, existing straighteners or protectors are prone to detachment during use, and this method of cable end protection can easily damage the optical cable in engineering applications. Utility Model Content

[0004] The technical problem to be solved by this utility model is that optical cables are prone to detachment during use with existing straighteners or protectors. The purpose is to provide an optical cable tail protection device and an optical cable tail protection system to solve the above-mentioned problem.

[0005] This utility model is achieved through the following technical solution:

[0006] In a first aspect, this utility model provides a fiber optic cable tail protection device, including a protector and a fixing rib; the protector is used to accommodate the fiber optic cable tail; the fixing rib is disposed on the protector, and the fixing rib is provided with a U-shaped fixing structure for fixing the fiber optic cable tail.

[0007] In one possible design, the U-shaped fixing structure includes a fixing groove and a fixing plate;

[0008] The fixing groove is U-shaped and is set on the fixing edge. Correspondingly, the opening direction of the fixing groove is connected to the deep groove on the protector so that the opening of the fixing groove can communicate with the outside through the deep groove.

[0009] The fixing plate is detachably connected to the fixing ridge. When the fixing plate is connected to the fixing ridge, the fixing plate blocks the fixing groove. Accordingly, the fixing plate and the fixing ridge form a clamping structure for fixing the optical cable.

[0010] In one possible design, the fixing groove is provided with a deepened and enlarged diameter groove for attaching a limiting ring to the optical cable.

[0011] In one possible design, the fixing groove is provided with a first threaded hole and a screw, and the fixing plate is provided with a matching second threaded hole. Accordingly, the screw passes through the first threaded hole and the second threaded hole to connect the fixing edge and the fixing plate.

[0012] In one possible design, a boss is provided at each end of the fixing rib, and one of the bosses is located at the opening of the fixing groove. The top surface of the boss is constructed to fit the arc surface of the optical cable sheath.

[0013] In one possible design, there are two deepened and expanded grooves, which are spaced apart on the same side of the U-shaped groove; there are three first threaded holes, which are equally spaced along the length of the fixed edge on the same straight line, and both bosses are located on this straight line.

[0014] In one possible design, the fixing plate has a fixing surface that contacts the optical cable, the fixing surface being constructed to fit the curved surface of the optical cable; and the fixing surface has recesses on both sides to make room.

[0015] In one possible design, the protector includes a straightening ring and a connecting rib;

[0016] Two straightening rings are provided and are arranged opposite each other and spaced apart. Multiple connecting ridges are provided and are used to connect the two straightening rings, so that the protector is constructed as a cylindrical structure with open ends.

[0017] One of the connecting edges has a U-shaped fixing structure and is used as a fixing edge.

[0018] In one possible design, the straightening ring has an outwardly protruding base and a groove on the base, with the end of the connecting ridge inserted into the groove and connected to the base by a fixing rod;

[0019] The straightening ring consists of two oppositely arranged sub-rings, with the ends of the sub-rings constructed as clamps to connect the two sub-rings.

[0020] Secondly, this utility model provides an optical cable tail protection system, including the aforementioned optical cable tail protection device.

[0021] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0022] 1. The U-shaped fixing structure is designed to better wrap and hold the optical cable, preventing it from slipping out or shifting, providing more stable support, and significantly reducing the probability of the cable end falling off the protector. The fixing plate is connected to and fixed to the fixing ridge, forming a clamping structure and securing the optical cable. When the optical cable is lowered or raised, it ensures that the cable end does not detach from the protector, thus protecting the cable end.

[0023] 2. When the optical cable is lowered or raised, it is subjected to force and may be displaced. The limiting ring abuts against the inner wall of the deepened and expanded groove, thereby directly blocking the movement of the optical cable and preventing it from coming out of the protector. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a schematic diagram of a fiber optic cable tail protection device.

[0026] Figure 2 This is a schematic diagram of a fixed edge structure.

[0027] Figure 3 for Figure 1 A partially enlarged structural diagram.

[0028] The attached diagram shows the markings and corresponding component names:

[0029] 100. Protector; 101. Straightening ring; 102. Connecting edge; 103. Base; 104. Fixing rod; 105. Sub-ring; 200. Fixing edge; 201. Fixing groove; 202. Fixing plate; 203. Deepened and enlarged groove; 204. First threaded hole; 205. Boss. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0031] Example:

[0032] like Figures 1-3 As shown, in a first aspect, the present invention provides a fiber optic cable tail protection device, including a protector 100 and a fixing rib 200; the protector 100 is used to accommodate the fiber optic cable tail; the fixing rib 200 is disposed on the protector 100, and the fixing rib 200 is provided with a U-shaped fixing structure for fixing the fiber optic cable tail.

[0033] In the described optical cable tail protection device, the protector 100 is used to house the optical cable tail, that is, the tail of the optical cable is inserted into the protector 100. The protector 100 isolates the optical cable tail from direct contact with the outside world, thereby protecting the optical cable. Furthermore, the fixing rib 200 uses a U-shaped fixing structure to fix the optical cable tail to prevent the optical cable tail from detaching from the protector 100, ensuring that the optical cable tail will not fall off in an arc shape during operation, thus making the protection effect more significant.

[0034] It is worth noting that the U-shaped fixing structure is U-shaped, which can better wrap and hold the optical cable, prevent the optical cable from slipping out or shifting from the U-shaped fixing structure, provide more stable support, and greatly reduce the probability of the optical cable tail end falling off from the protector 100.

[0035] As is easily understood, the protector 100 has a cavity communicating with the outside world to facilitate the insertion or removal of the optical cable from the protector 100. Accordingly, a U-shaped fixing structure is located on the fixing ridge 200 and faces the cavity, thereby effectively isolating the outside world from the end of the optical cable.

[0036] In one possible implementation, the U-shaped fixing structure includes a fixing groove 201 and a fixing plate 202;

[0037] The fixing groove 201 is U-shaped and is provided on the fixing ridge 200. Correspondingly, the opening direction of the fixing groove 201 is connected to the deep groove on the protector 100 so that the opening of the fixing groove 201 communicates with the outside through the deep groove.

[0038] The fixing plate 202 is detachably connected to the fixing ridge 200. When the fixing plate 202 is connected to the fixing ridge 200, the fixing plate 202 blocks the fixing groove 201. Accordingly, the fixing plate 202 and the fixing ridge 200 form a clamping structure for fixing the optical cable.

[0039] Based on the above design, the fixing groove 201 is constructed as a U-shaped groove. The end of the optical cable is bent into a U-shape and embedded in the fixing groove 201. Accordingly, the bending curvature of the end of the optical cable should be adapted to the fixing groove 201 to ensure one-time forming and reduce rework. Note that the outer sheath of the end of the optical cable should be removed first before bending.

[0040] After the optical cable is embedded in the fixing groove 201, the fixing plate 202 is connected to and fixed on the fixing ridge 200, forming a clamping structure and securing the optical cable. Since the fixing groove 201 is a U-shaped groove, the contact area between the fixing groove 201 and the optical cable is larger, the wrapping is better, and the U-shaped bend clamps the optical cable, making it difficult for the optical cable to slip out or shift, thus improving the stability, reliability and effectiveness of the fixation.

[0041] In addition, when it is necessary to separate the optical cable from the protector 100, simply remove the fixing plate 202 and then take out the optical cable. The operation is simple and easy to master.

[0042] Optionally, the fixing groove 201 is provided with a deepened and expanded diameter groove 203 for attaching a limiting ring to the optical cable. Based on the above design, by attaching the limiting ring to the deepened and expanded diameter groove 203, when the optical cable is lowered or raised, the optical cable is subjected to force and may be displaced. The limiting ring abuts against the inner wall of the deepened and expanded diameter groove 203, thereby directly blocking the movement of the optical cable and preventing the optical cable from falling out of the protector 100.

[0043] It is worth noting that the fixing groove 201 and the fixing plate 202 rely on friction to fix the optical cable. If the external force is large enough, the optical cable may slide along the fixing groove 201 under the action of the external force. Therefore, the deepened and enlarged diameter groove 203 is set to form abutment with the limiting ring and improve the fixing effect.

[0044] Optionally, the fixing groove 201 is provided with a first threaded hole 204 and a screw, and the fixing plate 202 is provided with a matching second threaded hole. Correspondingly, the screw passes through the first threaded hole 204 and the second threaded hole to connect the fixing ridge 200 and the fixing plate 202. Based on the above design scheme, the fixing plate 202 and the fixing ridge 200 are detachably connected by a threaded connection. The structure is simple and compact, with good detachability, meeting the usage characteristics of optical cable disassembly, assembly, and reuse.

[0045] It is easy to understand that the number of the first threaded hole 204, the second threaded hole, and the screw can be increased or decreased as needed to better adapt to actual working conditions. This utility model does not impose any restrictions on this.

[0046] Optionally, a boss 205 is provided at each end of the fixing ridge 200, and one of the bosses 205 is located at the opening of the fixing groove 201. The top surface of the boss 205 is constructed to fit the arc surface of the optical cable sheath. Based on the above design, the boss 205 fits the optical cable sheath better through the arc surface, so that the protector 100 and the optical cable fit together better, thereby improving the effect of fixing the optical cable.

[0047] A structure with a fixed edge of 200 is given: as follows Figure 2 As shown, there are two deep and widened grooves 203, which are spaced apart on the same side of the U-shaped groove; there are three first threaded holes 204, which are equally spaced along the length of the fixed edge 200 on the same straight line, and the two bosses 205 are located on this straight line.

[0048] In one possible implementation, the fixing plate 202 has a fixing surface that contacts the optical cable, the fixing surface being constructed to fit the curved surface of the optical cable; and the fixing surface has recesses on both sides for making room.

[0049] Based on the above design, the fixing surface is curved to allow the fixing plate 202 to better fit the optical cable. The inner groove is used to create space to ensure sufficient space at the end of the optical cable; and the inner groove can be constructed into any suitable shape, which is not limited in this invention.

[0050] In one possible implementation, the protector 100 includes a straightening ring 101 and a connecting rib 102;

[0051] Two straightening rings 101 are provided and are arranged opposite each other and spaced apart. Multiple connecting ribs 102 are provided and are used to connect the two straightening rings 101, so that the protector 100 is constructed as a cylindrical structure with open ends.

[0052] One of the connecting edges 102 is provided with a U-shaped fixing structure and is used as a fixing edge 200.

[0053] Based on the above design, two straightening rings 101 are connected to the two ends of the connecting edge 102, and several connecting edges 102 are equally spaced along the circumference of the straightening rings 101 to make the structure of the protector 100 symmetrical, eliminate stress concentration, and distribute the force more evenly, thereby extending the service life of the protector 100. Selecting any one of the connecting edges 102 as the fixing edge 200 provides greater design flexibility and practicality.

[0054] It is easy to understand that the straightening ring 101 can be constructed into any suitable shape, and this utility model does not impose any restrictions on it.

[0055] Optionally, the base 103 protruding outward on the straightening ring 101 and the groove located on the base 103, the end of the connecting rib 102 is inserted into the groove and connected to the base 103 by the fixing rod 104. Based on this, the connecting rib 102 is detachably connected to the straightening ring 101, so as to facilitate timely replacement of damaged connecting rib 102, or to replace it with a connecting rib 102 of a different shape. The former facilitates maintenance, and the latter makes the shape of the protector 100 more adaptable to the working environment.

[0056] Optionally, the straightening ring 101 includes two opposing sub-rings 105, the ends of which are configured as clamps to connect the two sub-rings 105. Based on this, the straightening ring 101 can be disassembled and fitted onto other equipment to facilitate the connection of the optical cable tail protection device with other devices.

[0057] Secondly, this utility model provides an optical cable tail protection system, including the aforementioned optical cable tail protection device. Based on this, the optical cable tail protection system can also include other suitable functional modules, resulting in richer functionality to meet different operational requirements and improved practicality. Furthermore, it is readily understood that the functional modules can be any suitable existing equipment, offering a wide range of choices.

[0058] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A protective device for the tail end of an optical cable, characterized in that, It includes a protector (100) and a fixing rib (200); the protector (100) is used to accommodate the end of the optical cable; the fixing rib (200) is provided on the protector (100) and the fixing rib (200) is provided with a U-shaped fixing structure for fixing the end of the optical cable.

2. The optical cable tail protection device according to claim 1, characterized in that, The U-shaped fixing structure includes a fixing groove (201) and a fixing plate (202); The fixing groove (201) is U-shaped and is provided on the fixing edge (200). Correspondingly, the opening direction of the fixing groove (201) is connected to the deep groove on the protector (100) so that the opening of the fixing groove (201) is connected to the outside through the deep groove. The fixing plate (202) is detachably connected to the fixing rib (200). When the fixing plate (202) is connected to the fixing rib (200), the fixing plate (202) blocks the fixing groove (201). Accordingly, the fixing plate (202) and the fixing rib (200) form a clamping structure for fixing the optical cable.

3. The optical cable tail protection device according to claim 2, characterized in that, The fixing groove (201) is provided with a deepened and enlarged diameter groove (203) for attaching the limiting ring on the optical cable.

4. The optical cable tail protection device according to claim 3, characterized in that, The fixing groove (201) is provided with a first threaded hole (204) and a screw, and the fixing plate (202) is provided with a matching second threaded hole. Accordingly, the screw passes through the first threaded hole (204) and the second threaded hole so that the fixing edge (200) and the fixing plate (202) are connected.

5. The optical cable tail protection device according to claim 4, characterized in that, The fixed edge (200) has a boss (205) at each end, and one of the bosses (205) is located at the opening of the fixed groove (201). The top surface of the boss (205) is constructed to fit the arc surface of the sleeve of the optical cable.

6. The optical cable tail protection device according to claim 5, characterized in that, Two deep-expanded grooves (203) are provided and are spaced apart on the same side of the U-shaped groove; three first threaded holes (204) are provided and are spaced equally along the length of the fixed edge (200) on the same straight line, and two bosses (205) are located on the straight line.

7. The optical cable tail protection device according to claim 2, characterized in that, The fixing plate (202) has a fixing surface that contacts the optical cable, and the fixing surface is constructed to fit the arc surface of the optical cable; and the two sides of the fixing surface are provided with inner grooves to make room.

8. The optical cable tail protection device according to any one of claims 1-7, characterized in that, The protector (100) includes a straightening ring (101) and a connecting rib (102). Two straightening rings (101) are provided and are arranged opposite each other and spaced apart. Multiple connecting ribs (102) are provided and are used to connect the two straightening rings (101) so that the protector (100) is constructed as a cylindrical structure with open ends; One of the connecting edges (102) has a U-shaped fixing structure and is used as a fixing edge (200).

9. The optical cable tail protection device according to claim 8, characterized in that, The base (103) protruding outward on the straightening ring (101) and the groove on the base (103) are connected to the end of the connecting rib (102) by inserting it into the groove and connecting it to the base (103) by fixing rod (104). The straightening ring (101) includes two oppositely arranged sub-rings (105), the ends of which are constructed as clamps to connect the two sub-rings (105).

10. A fiber optic cable tail protection system, characterized in that, The optical cable tail protection device includes any one of claims 1-9.

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