Deep sea traction array cable tail end limiting device

Abstract

The utility model discloses a deep sea traction array cable tail end limiting device which is characterized in that a guide mechanism is fixedly arranged on a supporting seat in a penetrating manner, the guide mechanism and an induction mechanism are coaxially arranged, the guide mechanism comprises a guide horn, a straight pipe, a damping section, a first stop ring and a second stop ring, and the straight pipe is arranged in the center of the inner side of the guide horn; a plurality of damping sections are evenly distributed on the straight pipe in the circumferential direction, a first stop ring is arranged on one side of each damping section, the first stop rings and the second stop rings are oppositely arranged, and an induction mechanism is arranged between the first stop rings and the second stop rings. When the array cable is released, the damping section protects the array cable to be in a buffer state all the time, and the damage risk of the array cable is reduced; through the arrangement of the induction mechanism, when the array cable is completely released, the magnetic induction section at the tail end of the array cable is just located at the induction position of the in-place sensor, and the reliability of a detection signal is improved; the diameter of the array cable is not limited, the length reserved at the tail end of the array cable can be adaptively modified according to working requirements, and the array cable can be conveniently arranged at the tail end of a traction mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of ocean array cable transmission devices, and more specifically to a deep-sea towing array cable end limiting device. Background Art

[0002] Modern ocean exploration technologies focus on the application and development of ocean resources. To more accurately detect the ocean environment at different depths and ranges in the ocean, it is necessary to lay out multiple types of cables to a sufficient distance and depth from the mother ship to ensure that the detection signals are clear and accurate enough. Since the ocean exploration transmission cable has zero buoyancy, the underwater ocean environment is harsh and full of uncertainties. Due to the cable laying and retrieval work of the array cable and water flow turbulence, etc., it will cause serious broadband random vibration and noise environment, and also excite numerous resonance peaks in the structure and the fiber optic electronic control instrument system inside the array cable, resulting in fatigue failure and dynamic instability of the array cable structure. At the end of the towing mechanism, due to the lack of a limiting mechanism, the signal of the array cable in place often appears abnormal, resulting in a decrease in the detection accuracy of the array cable and even malfunctions.

[0003] Therefore, designing a deep-sea towing array cable end limiting device that can prevent damage to the cable sheath and improve the accuracy of the array cable detection signal when the transmission cable has abnormal working failures and other emergencies has become the direction of further improvement. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a deep-sea towing array cable end limiting device, which includes a support seat, a guiding mechanism and an induction mechanism. The guiding mechanism is fixedly penetrated through the support seat, and the guiding mechanism and the induction mechanism are coaxially arranged. The guiding mechanism includes a guiding horn, a straight pipe, a damping section, a first stop ring and a second stop ring. A straight pipe is arranged at the center inside the guiding horn. A plurality of groups of damping sections are evenly arranged along the circumferential direction on the straight pipe. A first stop ring is arranged on one side of the damping section. The first stop ring and the second stop ring are arranged oppositely. An induction mechanism is arranged between the first stop ring and the second stop ring.

[0005] Preferably, the induction mechanism includes a magnetic induction mounting block, a nylon block, a magnetic induction section, a position sensor, a magnetic induction flange and a magnetic induction connection block. A guiding flange is fixedly arranged at the front end of the guiding horn. The guiding flange is fixedly connected with one end of the magnetic induction mounting block. A nylon block is arranged inside the magnetic induction mounting block. An arc-shaped step that converges inwards is formed between the nylon block and the inside of the guiding flange, and the arc-shaped step abuts against the outside of the second stop ring. A magnetic induction section is clamped between the second stop ring and the first stop ring, and the magnetic induction section and the position sensor are arranged at a relative interval. The position sensors are respectively hermetically and fixedly arranged at the upper and lower ends of the magnetic induction mounting block. The other end of the magnetic induction mounting block is fixedly connected with the magnetic induction flange, and the magnetic induction flange and the magnetic induction connection block are integrally formed.

[0006] Preferably, the in-place sensor includes a sensor body, a sealing mechanism, an axial sealing ring, and a radial sealing ring. The outer periphery of the front end of the sensor body is provided with a mounting thread, and a sealing mechanism is provided in the middle of the sensor body. An axial sealing ring and a radial sealing ring are adaptively installed on the sealing mechanism.

[0007] Preferably, the sealing mechanism includes an integrally formed rear sealing seat and a front sealing seat. An installation hole is provided in the rear sealing seat, and a fixing bolt is provided in the installation hole. The fixing bolt fixedly connects the rear sealing seat and the magnetic induction mounting block; an axial sealing groove is provided inside the rear sealing seat, and an axial sealing ring is provided in the axial sealing groove; a radial sealing groove is provided at the connection between the rear sealing seat and the front sealing seat, and a radial sealing ring is provided in the radial sealing groove. The diameter of the front sealing seat is less than or equal to the inner diameter of the axial sealing groove.

[0008] Preferably, one end of the straight pipe extends out of the guiding horn, and the other side of the damping section also extends out of the guiding horn; two adjacent groups of damping sections are arranged staggeredly with each other.

[0009] Preferably, one end of the stop ring is fixedly connected to the straight pipe.

[0010] Preferably, both the first stop ring and the second stop ring are made of titanium alloy TC4 material.

[0011] Preferably, the lower end of the magnetic induction connection block is fixedly connected to the traction mechanism through a fixing block.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] (1) In the utility model, a guiding mechanism is fixedly penetrated on the support seat, and the guiding mechanism is coaxially arranged with the induction mechanism. The guiding mechanism includes a guiding horn, a straight pipe, a damping section, a first stop ring, and a second stop ring. A straight pipe is provided at the center inside the guiding horn, and a plurality of groups of damping sections are evenly arranged along the circumferential direction on the straight pipe. A first stop ring is provided on one side of the damping section, the first stop ring and the second stop ring are arranged oppositely, and an induction mechanism is provided between the first stop ring and the second stop ring. When the array cable is released, the damping section protects the array cable to be in a buffering state at all times, reducing the risk of damage to the array cable; through the arrangement of the induction mechanism, when the array cable is completely released, the magnetic induction section at the end of the array cable is exactly at the induction position of the in-place sensor, improving the reliability of the detection signal. When the in-place sensor detects the magnetic induction section, a feedback signal will be sent to the background system to remind the staff that the release of the array cable this time has reached the position, avoiding continued release of the array cable resulting in non-working damage to the array cable, and timely verifying the rationality and reliability of the feedback of the in-place information of the underwater array cable equipment; the utility model does not limit the diameter of the array cable, and the length left at the end of the array cable can also be adaptively modified according to the working requirements, which is more convenient to be installed at the end of the traction mechanism.

[0014] (2) The utility model is provided with a mounting thread on the outer periphery of the front end of the sensor body, and a sealing mechanism is provided in the middle of the sensor body. The sealing mechanism includes an integrally formed sealing rear seat and a sealing front seat. An installation hole is provided on the sealing rear seat, and a fixing bolt is provided in the installation hole. The fixing bolt fixedly connects the sealing rear seat with the magnetic induction mounting block; an axial sealing groove is provided on the inner side of the sealing rear seat, and an axial sealing ring is provided in the axial sealing groove; a radial sealing groove is provided at the connection between the rear seat of the sealing groove and the front seat of the sealing groove, and a radial sealing ring is provided in the radial sealing groove. The diameter of the front seat of the sealing groove is less than or equal to the inner diameter of the axial sealing groove. The in-place sensor of the utility model improves the reliability and sealing performance of the in-place sensor during operation by working both axially and radially, and can better protect the sensor body for detecting the array cable. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 is a schematic diagram of the internal structure of the utility model.

[0017] Figure 3 is a sectional view of the utility model.

[0018] Figure 4 is of the utility model Figure 3 enlarged view of part A.

[0019] Figure 5 is a schematic diagram of the structure of the in-place sensor of the utility model.

[0020] Figure 6 is of the utility model Figure 5 sectional view.

[0021] Figure 7 is a sectional view of a conventional in-place sensor in the prior art. Detailed Description of the Invention

[0022] The following further describes the utility model in conjunction with the drawings and specific embodiments.

[0023] As Figures 1 to 6 shown, a deep-sea towed array cable end limiting device includes a support seat 1, a guiding mechanism 2, an induction mechanism 3, a guiding horn 4, a straight pipe 5, a damping section 6, a first stop ring 7, a guiding flange 8, a magnetic induction mounting block 9, a nylon block 10, a magnetic induction section 11, a second stop ring 12, an in-place sensor 13, a magnetic induction flange 14, a magnetic induction connection block 15, a sensor body 16, a sealing mechanism 17, an axial sealing ring 18, a radial sealing ring 19, a mounting thread 20, a sealing front seat 21, a sealing rear seat 22, a fixing bolt 23, an axial sealing groove 24, a radial sealing groove 25, a fixing block 26, and an array cable 27.

[0024] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] As Figures 1 to 6 shown, a guiding mechanism 2 is fixedly penetrated through a support base 1. The guiding mechanism 2 and an induction mechanism 3 are coaxially arranged. The guiding mechanism 2 includes a guiding horn 4, a straight pipe 5, a damping section 6, a first stop ring 7 and a second stop ring 12. A straight pipe 5 is arranged at the center inside the guiding horn 4. A plurality of groups of damping sections 6 are evenly arranged along the circumference of the straight pipe 5. A first stop ring 7 is arranged on one side of the damping section 6. The first stop ring 7 and the second stop ring 12 are arranged opposite to each other. The induction mechanism 3 is arranged between the first stop ring 7 and the second stop ring 12. The second stop ring 12 can move along the inside of the guiding horn 4 under normal conditions. The setting of the damping section 6 can not only reduce vibration and noise. Because when the underwater cable is retracted and deployed in the marine environment, due to reasons such as the cable retraction and deployment work and water flow turbulence, it will cause serious broadband random vibration and noise environment, and will also excite many resonance peaks of the structure and the fiber optic electronic control instrument system inside the cable, resulting in fatigue failure and dynamic instability of the cable structure, reducing the detection accuracy of the cable and even causing failures. The damping section 6 can also protect the tail end of the cable 27 and prevent accidents such as accidental collision from causing damage to the cable.

[0027] The induction mechanism 3 includes a magnetic induction mounting block 9, a nylon block 10, a magnetic induction section 11, a position sensor 13, a magnetic induction flange 14 and a magnetic induction connection block 15. A guiding flange 8 is fixedly provided at the front end of the guiding horn 4, and the guiding flange 8 is fixedly connected to one end of the magnetic induction mounting block 9. A nylon block 10 is provided inside the magnetic induction mounting block 9, and an arc-shaped step that converges inwards is formed between the nylon block 10 and the inside of the guiding flange 8, and the arc-shaped step can be abutted against the outside of the second retaining ring 12; A magnetic induction section 11 is clamped between the second retaining ring 12 and the first retaining ring 7. The magnetic induction section 11 is provided at the tail end of the array cable 27, and the magnetic induction section 11 and the position sensor 13 are arranged at a relative interval. The position sensors 13 are respectively sealed and fixedly provided at the upper and lower ends of the magnetic induction mounting block 9; The other end of the magnetic induction mounting block 9 is fixedly connected to the magnetic induction flange 14, and the magnetic induction flange 14 and the magnetic induction connection block 15 are integrally formed.

[0028] The diameter of the array cable 27 is not limited by the present utility model, and the length left at the end of the array cable 27 can also be adaptively modified according to the working requirements.

[0029] The position sensor 13 includes a sensor body 16, a sealing mechanism 17, an axial sealing ring 18 and a radial sealing ring 19. An installation thread 20 is provided on the outer periphery of the front end of the sensor body 16, and a sealing mechanism 17 is provided in the middle of the sensor body 16. The axial sealing ring 18 and the radial sealing ring 19 are adaptively installed on the sealing mechanism 17. Specifically, the sealing mechanism 17 includes an integrally formed sealing rear seat 22 and a sealing front seat 21. An installation hole is provided in the sealing rear seat 22, and a fixing bolt 23 is provided in the installation hole. The fixing bolt 23 fixedly connects the sealing rear seat 22 to the magnetic induction mounting block 9; An axial sealing groove 24 is provided inside the sealing rear seat 22, and the axial sealing ring 18 is provided in the axial sealing groove 24; A radial sealing groove 25 is provided at the connection between the sealing rear seat 22 and the sealing front seat 21, and the radial sealing ring 19 is provided in the radial sealing groove 25. The diameter of the sealing front seat 21 is less than or equal to the inner diameter of the axial sealing groove 24. By working both axially and radially, the position sensor 13 can be more firmly sealed with the magnetic induction mounting block 9, improving the reliability and sealing performance of the position sensor 13 during operation, achieving a better water pressure resistance effect, and better protecting the detection of the sensor body 16 for the array cable 27. As Figure 7 shown, only one sealing ring 28 is designed axially for the position sensor in the prior art, and the water pressure resistance effect is not good.

[0030] One end of the straight pipe 5 extends out of the guiding horn 4, and the other side of the damping section 6 also extends out of the guiding horn 4; two adjacent damping sections 6 are staggeredly arranged. One end of the first retaining ring 7 is fixedly connected to the straight pipe 5. Both the first retaining ring 7 and the second retaining ring 12 are made of titanium alloy TC4 material. Since the surface of the array cable 27 is made of PU material, to meet the reliability requirements, the first retaining ring 7 and the second retaining ring 12 made of titanium alloy TC4 material are more corrosion-resistant, have high strength and are lighter in weight, and do not affect the overall requirement of electrocorrosion.

[0031] The lower end of the magnetic induction connection block 15 is fixedly connected to the traction mechanism through the fixing block 26, which is convenient for subsequent installation at the end of the traction mechanism.

[0032] The working principle of the present utility model is as follows: when the array cable 27 is released, the damping section 6 protects the array cable 27 to be in a buffered state at all times, reducing the risk of damage to the array cable 27; through the setting of the induction mechanism 3, when the array cable 27 is completely released, the second retaining ring 12 will abut against the inwardly converging arc-shaped step formed by the nylon block 10 and the inner side of the guiding flange 8, thereby restricting the release of the array cable 27. At this time, the magnetic induction section 11 at the tail end of the array cable 27 is exactly in the induction position of the in-place sensor 13, improving the reliability of the detection signal. When the in-place sensor 13 detects the magnetic induction section 11, it will feedback a signal to the background system to remind the staff that the release of the array cable 27 this time has reached the position, avoiding the non-working damage of the array cable 27 caused by continuous release of the array cable 27, and timely verifying the rationality and reliability of the in-place information feedback of the underwater array cable 27 device.

[0033] The above embodiments are only the preferred embodiments of the present utility model, and cannot be used to limit the scope of rights of the present utility model. Therefore, the modifications, equivalent changes, improvements, etc. made according to the scope of the patent application of the present utility model still fall within the scope covered by the present utility model.

Claims

1. A limiting device for the tail end of a deep - sea towing array cable, characterized in that: It includes a support base (1), a guiding mechanism (2) and a sensing mechanism (3). The guiding mechanism (2) is fixedly penetrated through the support base (1). The guiding mechanism (2) and the sensing mechanism (3) are coaxially arranged. The guiding mechanism (2) includes a guiding horn (4), a straight pipe (5), a damping section (6), a first stop ring (7) and a second stop ring (12). A straight pipe (5) is arranged at the center inside the guiding horn (4). A plurality of groups of damping sections (6) are evenly arranged along the circumferential direction on the straight pipe (5). A first stop ring (7) is arranged on one side of the damping section (6). The first stop ring (7) and the second stop ring (12) are arranged oppositely. The sensing mechanism (3) is arranged between the first stop ring (7) and the second stop ring (12).

2. The end limit device for a deep-sea towing array cable according to claim 1, wherein: The sensing mechanism (3) includes a magnetic induction mounting block (9), a nylon block (10), a magnetic induction section (11), a position sensor (13), a magnetic induction flange (14) and a magnetic induction connecting block (15). A guiding flange (8) is fixedly arranged at the front end of the guiding horn (4). The guiding flange (8) is fixedly connected with one end of the magnetic induction mounting block (9). A nylon block (10) is arranged inside the magnetic induction mounting block (9). An arc-shaped step that converges inwards is formed between the nylon block (10) and the inside of the guiding flange (8). The arc-shaped step can be abutted against the outside of the second stop ring (12). A magnetic induction section (11) is clamped between the second stop ring (12) and the first stop ring (7). The magnetic induction section (11) and the position sensor (13) are arranged at intervals relatively. The position sensors (13) are respectively sealed and fixedly arranged at the upper and lower ends of the magnetic induction mounting block (9). The other end of the magnetic induction mounting block (9) is fixedly connected with the magnetic induction flange (14). The magnetic induction flange (14) and the magnetic induction connecting block (15) are integrally formed.

3. The terminal limit device for a deep-sea towing array cable according to claim 2, wherein: The position sensor (13) includes a sensor body (16), a sealing mechanism (17), an axial sealing ring (18) and a radial sealing ring (19). An installation thread (20) is arranged on the outer periphery of the front end of the sensor body (16). A sealing mechanism (17) is arranged in the middle of the sensor body (16). The axial sealing ring (18) and the radial sealing ring (19) are adaptively installed on the sealing mechanism (17).

4. The end position limiting device for a deep-sea towing array cable according to claim 3, characterized in that: The sealing mechanism (17) includes an integrally formed sealing rear seat (22) and a sealing front seat (21). An installation hole is arranged on the sealing rear seat (22). A fixing bolt (23) is arranged in the installation hole. The fixing bolt (23) fixedly connects the sealing rear seat (22) with the magnetic induction mounting block (9). An axial sealing groove (24) is arranged inside the sealing rear seat (22). The axial sealing ring (18) is arranged in the axial sealing groove (24). A radial sealing groove (25) is arranged at the connection between the sealing rear seat (22) and the sealing front seat (21). The radial sealing ring (19) is arranged in the radial sealing groove (25). The diameter of the sealing front seat (21) is less than or equal to the inner diameter of the axial sealing groove (24).

5. The deep - sea towed array cable end limit device according to claim 3 or 4, characterized in that: One end of the straight pipe (5) extends out of the guiding horn (4), and the other side of the damping section (6) also extends out of the guiding horn (4); adjacent two sets of the damping sections (6) are staggeredly arranged with each other.

6. The end limit device for a deep-sea towing array cable according to claim 5, characterized in that: One end of the first retaining ring (7) is fixedly connected to the straight pipe (5).

7. The end limit device for a deep - sea towed array cable according to claim 6, wherein: Both the first retaining ring (7) and the second retaining ring (12) are made of titanium alloy TC4 material.

8. The end limit device for a deep - sea towed array cable according to claim 5, characterized in that: The lower end of the magnetic induction connection block (15) is fixedly connected to the traction mechanism through a fixing block (26).

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