A sealed and corrosion-resistant load-bearing detection cable

Abstract

The present invention relates to the technical field of detection cables, and proposes a sealed and corrosion-resistant load-bearing detection cable, comprising: a housing sleeved on a cable body; a control disk rotatably sleeved on the housing, a plurality of guide portions being provided in a circumferential array on the control disk; a plurality of pressure dividers being distributed in a circumferential array on the periphery of the housing, the pressure divider having a support portion and a pressing portion, the support portion being used to abut against the well wall, the pressure divider being arranged to move relative to the housing along the radial direction of the housing, after the pressure divider moves close to the housing, the pressing portion abuts against the periphery of the housing or the periphery of the cable body, the pressure divider also having a connecting portion, the connecting portion and the guide portion being arranged to slide relative to each other, when one of the pressure dividers moves close to the housing, the connecting portion drives the guide portion to rotate, and after the control disk rotates, the guiding portion drives the connecting portion to move close to the housing. Through the above technical solution, the problem in the prior art that the cable body is subjected to unilateral force, resulting in a reduction in the tightness of the annular structure of the inner and outer armor layers, thereby affecting the sealing and corrosion-resistant performance, is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of detection cables, and in particular to a sealed and corrosion-resistant load-bearing detection cable. Background Art

[0002] The load-bearing detection cable is a connecting line between the ground system and underground instruments used for hanging weight connections and transmitting measurement data. It transports various downhole instruments, transmits various signals between the ground control system and downhole instruments, and obtains the depth position of downhole information.

[0003] When used underground, the conditions are generally harsh. Load-bearing detection cables are subject to corrosion damage caused by humidity, insect bites, and secretions. Therefore, load-bearing detection cables require proper sealing and corrosion protection to prevent water and air from entering the cable body, which could affect transmission function, structural safety, and service life. For example, in our company's existing technology (patent application number CN202411766196.5), an inner armor layer in a ring-shaped steel ring structure is combined with an outer armor layer to enhance structural strength and sealing. The inner armor layer tightens toward the inner ring when subjected to force, improving sealing. Other similar publicly available technologies enhance sealing and structural strength by combining inner and outer armor layers to resist external impact. However, when used underground, the cable body is susceptible to collision or friction with the well wall, damaging the protective surface of the cable body. Furthermore, if the inner and outer armor layers are subjected to excessive force from a single impact and prolonged unilateral pressure, the uneven force can cause significant deformation on one side, significantly compromising the tightness of the ring structure. This significantly reduces the sealing performance and the sealing and corrosion resistance of the cable interior.

[0004] In the prior art, the unilateral force on the cable body leads to a decrease in the tightness of the annular structure of the inner and outer armor layers, which affects the sealing and anti-corrosion performance and needs to be solved. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a sealed and corrosion-resistant load-bearing detection cable in response to the above-mentioned technical deficiencies, which solves the problem in the prior art that the cable body is subjected to unilateral force, resulting in a decrease in the tightness of the annular structure of the inner and outer armor layers, affecting the sealing and corrosion-resistant performance.

[0006] The technical solution adopted by the present invention is to provide a sealed and corrosion-resistant load-bearing detection cable, comprising:

[0007] The casing is used for being sleeved on the cable body;

[0008] The control disk is annular and is rotatably mounted on the housing. A plurality of guide portions are arranged in a circumferential array on the control disk.

[0009] There are several pressure dividers, and the several pressure dividers are distributed in a circular array around the periphery of the casing. The pressure divider has a supporting part and a pressing part. The supporting part is used to abut against the well wall. The pressure divider is arranged to move relative to the casing along the radial direction of the casing. After the pressure divider moves close to the casing, the pressing part abuts against the periphery of the casing or the periphery of the cable body. The pressure divider also has a connecting part, and the connecting part and the guide part are arranged to slide relative to each other. When one of the pressure dividers moves close to the casing, the guide part is driven to rotate through the connecting part. After the control disk rotates, the connecting part is driven to move close to the casing through the guide part.

[0010] To further optimize this technical solution, the guide part is a slide groove, which is inclined relative to the radial direction of the control disk, and the connecting part is a slide rod, which slides in the slide groove. After the slide rod moves in the slide groove and approaches the housing, the slide rod pushes the control disk to rotate. After the control disk rotates, the slide groove drives the slide rod to move synchronously close to the housing.

[0011] Further optimization of this technical solution also includes:

[0012] There are a plurality of conduits, which are arranged in a circumferential array on the periphery of the housing, each of which has a compression spring, and the axis direction of the conduit is arranged along the radial direction of the housing;

[0013] There are several guide rods, each of which is provided with a guide rod. The guide rod is slidably sleeved in the conduit. One end of the compression spring acts on the conduit and the other end acts on the guide rod to provide a force for the pressure dividing member to move away from the housing.

[0014] To further optimize the present technical solution, a slide plate is provided in the middle of the pressure divider, the slide plate is located above the control panel, the connecting portion is arranged at the lower end of the slide plate, the pressing portion is arc-shaped, the pressing portion is located on the side of the slide plate close to the housing, the supporting portion is located on the side of the slide plate away from the housing, and the guide rod is installed on the supporting portion.

[0015] Further optimization of this technical solution also includes:

[0016] An insect trap, provided on the housing, for containing an attractant for attracting insects;

[0017] Adhesive is provided on the insect trap box and is used for adhering to insects close to the cable body.

[0018] Further optimizing this technical solution, the housing is provided with a mounting tube, and further comprising:

[0019] A sleeve is arranged at the upper end of the insect attractant box, the sleeve is sleeved on the mounting tube, and the sleeve and the mounting tube are detachably connected by bolts.

[0020] To further optimize the technical solution, the insect attractant box includes an arc-shaped side panel, which is attached to the outer wall of the shell. The insect attractant box also includes an upper panel located at the upper end of the side panel and a lower panel located at the lower end of the side panel. The adhesive is provided on the lower side of the upper panel and the upper side of the lower panel. The side panel has a plug-in slot, which is used to accommodate the attractant.

[0021] The beneficial effects of the present invention are:

[0022] 1. The supporting part of the pressure divider contacts the well wall, which can avoid direct impact or friction between the cable body and the well wall and reduce surface wear.

[0023] 2. After unilateral collision with the well wall or pressure, the pressure divider moves closer to the casing and transmits the pressure to the cable body through the casing. Several pressing parts surround the casing, so that each circumferential position of the casing is squeezed by the pressing parts, so that the pressure is more evenly distributed on the circumferential surface of the cable body, avoiding unilateral force leading to a decrease in the tightness of the annular structure of the inner and outer armor layers, so that the various structural layers in the cable body are more evenly stressed at each circumferential position, thereby improving the stability of sealing and corrosion protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of the present invention (the pressing portion is away from the housing);

[0025] Figure 2 For the present invention Figure 1 Schematic diagram of the structure in the state view;

[0026] Figure 3 For the present invention Figure 1 State top view structure diagram;

[0027] Figure 4 For the present invention Figure 3 Schematic diagram of the partially enlarged structure of the cross-section at the AA position in the middle;

[0028] Figure 5 This is a schematic diagram of the structure of the present invention in use from above (the pressing portion abuts against the housing);

[0029] Figure 6 This is a schematic diagram of the matching structure of the connecting portion and the guide portion of the present invention;

[0030] Figure 7 This is a schematic diagram of the casing structure of the present invention;

[0031] Figure 8 This is a schematic diagram of the control panel structure of the present invention;

[0032] Figure 9 It is a schematic structural diagram of the pressure divider of the present invention;

[0033] Figure 10 Schematic diagram of the structure of the insect trap of the present invention;

[0034] Explanation of the marks in the figure: 1. Cable body; 2. Housing; 201. Mounting tube; 3. Control panel; 301. Guide part; 4. Pressure divider; 401. Support part; 402. Slide plate; 403. Pressing part; 404. Connecting part; 5. Conduit; 6. Compression spring; 7. Guide rod; 8. Insect trap; 801. Sleeve; 802. Side panel; 8021. Connecting slot; 803. Upper panel; 804. Lower panel; 9. Glue. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0037] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0038] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0039] like Figure 1-10As shown, a sealed and corrosion-resistant load-bearing detection cable includes: a casing 2 for being sleeved on a cable body 1; a control disk 3, which is annular and rotatably sleeved on the casing 2, and a plurality of guide parts 301 are arranged in a circumferential array on the control disk 3; a plurality of pressure dividing members 4, which are distributed in a circumferential array on the periphery of the casing 2, and the pressure dividing member 4 has a supporting portion 401 and a pressing portion 403. The supporting portion 401 is used to abut against the well wall, and the pressure dividing member 4 is moved relative to the casing 2 in the radial direction of the casing 2. After the pressure dividing member 4 moves close to the casing 2, the pressing portion 403 abuts against the periphery of the casing 2 or the periphery of the cable body 1. The pressure dividing member 4 also has a connecting portion 404, and the connecting portion 404 is arranged to slide relative to the guide part 301. When one of the pressure dividing members 4 moves close to the casing 2, the guide part 301 is driven to rotate through the connecting portion 404. After the control disk 3 rotates, the connecting portion 404 is driven to move close to the casing 2 through the guide part 301.

[0040] During use, the housing 2 is placed over a location on the cable body 1 that requires protection, such as a location that is prone to collision with the well wall. The housing 2 can be inserted from the end of the cable body 1 to the designated location and then tightened, or the housing 2 can be a clamp structure that surrounds the cable body 1. An annular groove is provided on the outer periphery of the housing 2, and the inner side of the control disk 3 rotates within the groove. The control disk 3 and the pressure divider 4 form a relative movement through the interaction between the guide portion 301 and the connecting portion 404, and the pressure divider 4 moves along the radial direction of the casing 801.

[0041] When one or more of the pressure dividing members 4 hit the well wall or are under pressure, the stressed pressure dividing member 4 moves toward the casing 2, and acts on the guide portion 301 through the connecting portion 404, so that during the movement of the pressure dividing member 4, the control disk 3 rotates at the same time, and after the control disk 3 rotates, it acts on the connecting portions 404 of other pressure dividing members 4 through the guide portion 301, driving the other pressure dividing members 4 to move toward the casing 2 at the same time. Finally, the pressure dividing portions surrounding the outer periphery of the casing 2 generate pressure on the casing 2 in the circumferential direction, avoiding excessive difference between the force on one side and the force on other positions, and at the same time helping to reduce the impact damage force.

[0042] The pressing portion 403 can abut against the outer periphery of the casing 2 , and the pressing force transmits the casing 2 to the cable body 1 ; the pressing portion 403 can also abut against the outer periphery of the cable body 1 , and the pressing force acts on the outer layer of the cable body 1 .

[0043] Furthermore, the guide portion 301 is a slide groove, which is inclined relative to the radial direction of the control disk 3. The connecting portion 404 is a slide rod, which slides in the slide groove. After the slide rod moves in the slide groove and approaches the housing 2, the slide rod pushes the control disk 3 to rotate. After the control disk 3 rotates, the slide groove drives the slide rod to move synchronously close to the housing 2.

[0044] During use, the coordination of the connecting portion 404 and the guiding portion 301 can refer to the circular hole diameter reduction mechanism. The present application specifies that the pressure divider 4 moves in the radial direction, which can reduce the rubbing of the outer layer of the cable body 1 by the pressing portion 403, and improve the contact stability. There are two implementation methods. The first implementation method is that the guiding portion 301 is a slide groove structure, and a slide groove is provided along a circumferential array on the control disk 3. The connecting portion 404 is a slide rod, and the slide groove is tilted relative to the radial direction. When the slide rod follows the pressure divider 4 and moves closer to the housing 2 in the radial direction, the slide rod and the slide groove move relative to each other, and the control disk 3 is turned. After the control disk 3 rotates, each slide groove drives the corresponding slide rod to approach the housing 2 in the radial direction. Finally, all the pressing portions 403 are in contact with the cable body 1 behind the housing 2.

[0045] In a second embodiment, the connecting portion 404 is a sliding groove structure and the guide portion 301 is a sliding rod. The mutual drive between the pressure divider 4 and the control panel 3 can also be achieved. The principle is the same as above and will not be repeated here. The sliding groove structure can be an arc-shaped sliding groove, with one end close to the casing 2 and the other end away from the casing 2. The line connecting the two ends is arranged at an angle to the radial direction of the casing 2.

[0046] Furthermore, it also includes: a plurality of conduits 5, which are arranged in a circular array on the periphery of the housing 2, each conduit 5 has a compression spring 6, and the axial direction of the conduit 5 is arranged along the radial direction of the housing 2; a plurality of guide rods 7, each pressure dividing member 4 is provided with a guide rod 7, the guide rod 7 is slidably sleeved in the conduit 5, one end of the compression spring 6 acts on the conduit 5, and the other end acts on the guide rod 7, which is used to provide a force for the pressure dividing member 4 to move away from the housing 2.

[0047] During use, the guide tube 5 and guide rod 7 limit the radial movement of the pressure divider 4, while the compression spring 6 acts as a buffer and resets the pressure divider 4. When the support portion 401 of the pressure divider 4 is impacted, the guide rod 7 slides within the guide tube 5, compressing the compression spring 6. When the pressure divider 4 is free from the wellbore wall, the compression spring 6 is released, and the pressure divider 4 moves away from the housing 2.

[0048] Furthermore, the pressure divider 4 has a slide plate 402 in the middle, the slide plate 402 is located above the control panel 3, the connecting portion 404 is arranged at the lower end of the slide plate 402, the pressing portion 403 is arc-shaped, and the pressing portion 403 is located on the side of the slide plate 402 close to the housing 2, the supporting portion 401 is located on the side of the slide plate 402 away from the housing 2, and the guide rod 7 is installed on the supporting portion 401.

[0049] When in use, the pressure divider 4 can be a horizontal slide 402 with a vertically upward pressing portion 403 set on the inner side. The pressing portion 403 is arc-shaped and fits with the outer surface of the cable body 1 or the outer surface of the shell 2. A vertically downward supporting portion 401 is set on the outer side of the slide 402, and the guide rod is installed on the supporting portion 401.

[0050] The cable assembly further includes an insect trap 8 disposed on the housing 2 for containing an attractant for attracting insects, and adhesive 9 disposed on the insect trap 8 for attracting insects near the cable body 1. The insect trap 8 includes an arcuate side panel 802 that is attached to the outer wall of the housing 2. The insect trap 8 also includes an upper panel 803 located at the upper end of the side panel 802 and a lower panel 804 located at the lower end of the side panel 802. Adhesive 9 is disposed on the lower side of the upper panel 803 and the upper side of the lower panel 804. The side panel 802 has an insertion slot 8021 for containing the attractant.

[0051] During use, mosquitoes gnawing on the cable body 1 and secreting the cable body 1 may damage and corrode the cable body 1. The insect trap 8 can trap mosquitoes and reduce damage to the cable body 1. According to the distribution of strata or the use environment, corresponding attractants can be set, and the mosquitoes can be stuck by the adhesive 9.

[0052] The insect trap 8 can be coated with adhesive 9, with an attractant placed in the center of the adhesive 9. The insect trap 8 can be open, with a central annular side panel 802. The upper and lower panels 803 and 804 are located at the upper and lower ends of the side panel 802, respectively, and are coated with adhesive 9 to facilitate replacement of the adhesive 9. Multiple slots 8021 can be provided on the outer side of the side panel 802, away from the housing 2, for accommodating attractants and other mosquito attractants, facilitating replacement according to different environments. Adhesive 9 can also be applied around the slots 8021 on the side panel 802.

[0053] Furthermore, the housing 2 has a mounting tube 201 and further includes: a sleeve 801, which is arranged at the upper end of the insect trap 8, and the sleeve 801 is sleeved on the mounting tube 201, and the sleeve 801 and the mounting tube 201 are detachably connected by bolts.

[0054] When in use, the insect trap 8 is detachably mounted on the casing 2 via a sleeve 801 for easy replacement. The sleeve 801 is sleeved onto the mounting tube 201 and then tightened with a bolt.

[0055] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A sealed and corrosion-resistant load-bearing detection cable, characterized in that: include: A casing (2) is used for being sleeved on the cable body (1); The control disk (3) is annular and is rotatably mounted on the housing (2). A plurality of guide portions (301) are arranged in a circumferential array on the control disk (3); The pressure dividing member (4) has a plurality of pressure dividing members (4), which are distributed in a circumferential array on the periphery of the casing (2). The pressure dividing member (4) has a supporting portion (401) and a pressing portion (403). The supporting portion (401) is used to abut against the well wall. The pressure dividing member (4) is arranged to move relative to the casing (2) along the radial direction of the casing (2). After the pressure dividing member (4) moves close to the casing (2), the pressing portion (403) abuts against the periphery of the casing (2) or the outside of the cable body (1). The pressure dividing member (4) further comprises a connecting portion (404), and the connecting portion (404) and the guide portion (301) are arranged to slide relative to each other. When one of the pressure dividing members (4) moves close to the casing (2), the connecting portion (404) of one of the pressure dividing members (4) drives the corresponding guide portion (301) to rotate. After the control disk (3) rotates, the corresponding connecting portion (404) is driven to move close to the casing (2) through the other guide portion (301).

2. A sealed and corrosion-resistant load-bearing detection cable according to claim 1, characterized in that: The guide portion (301) is a slide groove, and the slide groove is inclined relative to the radial direction of the control disk (3). The connecting portion (404) is a slide rod, and the slide rod slides in the slide groove. After the slide rod of one of the pressure dividers (4) moves close to the housing (2) in the corresponding slide groove, the slide rod pushes the control disk (3) to rotate. After the control disk (3) rotates, the other slide grooves drive the corresponding slide rods to move synchronously close to the housing (2).

3. The sealed and corrosion-resistant load-bearing detection cable according to claim 1, characterized in that: Also includes: There are a plurality of conduits (5) arranged in a circumferential array on the periphery of the housing (2), each of the conduits (5) has a compression spring (6) therein, and the axial direction of the conduits (5) is arranged along the radial direction of the housing (2); There are a plurality of guide rods (7), each of which is provided with a guide rod (7). The guide rod (7) is slidably sleeved in the conduit (5). One end of the compression spring (6) acts on the conduit (5) and the other end acts on the guide rod (7) to provide a force for the pressure dividing member (4) to move away from the housing (2).

4. A sealed and corrosion-resistant load-bearing detection cable according to claim 3, characterized in that: The pressure dividing member (4) has a slide plate (402) in the middle, the slide plate (402) is located above the control panel (3), the connecting portion (404) is arranged at the lower end of the slide plate (402), the pressing portion (403) is arc-shaped, the pressing portion (403) is located on the side of the slide plate (402) close to the casing (2), the supporting portion (401) is located on the side of the slide plate (402) away from the casing (2), and the guide rod (7) is mounted on the supporting portion (401).

5. The sealed and corrosion-resistant load-bearing detection cable according to claim 1, characterized in that: Also includes: An insect trap (8) is provided on the housing (2) and is used to contain an attractant for attracting insects; Adhesive (9) is provided on the insect trap (8) and is used to adhere to insects close to the cable body (1).

6. The sealed and corrosion-resistant load-bearing detection cable according to claim 5, characterized in that: The housing (2) is provided with a mounting tube (201) and further comprises: A sleeve (801) is arranged at the upper end of the insect trap (8), the sleeve (801) is sleeved on the mounting tube (201), and the sleeve (801) and the mounting tube (201) are detachably connected via bolts.

7. The sealed and corrosion-resistant load-bearing detection cable according to claim 5, characterized in that: The insect attracting box (8) comprises an arcuate side panel (802), wherein the side panel (802) is attached to the outer wall of the housing (2), and the insect attracting box (8) further comprises an upper panel (803) located at the upper end of the side panel (802) and a lower panel (804) located at the lower end of the side panel (802), wherein the adhesive (9) is provided on the lower side of the upper panel (803) and the upper side of the lower panel (804), and the side panel (802) is provided with an inserting slot (8021), wherein the inserting slot (8021) is used to accommodate an attractant.

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