Anti-torsion device for laying of multiple cables in narrow and small space of deep well

Abstract

The utility model relates to the technical field of cable laying, and provides an anti-torsion device for laying multiple cables in a narrow and small space of a deep well, which comprises a hanging scaffold used for entering a shaft as a construction platform, a cable reel and a steel wire rope, the cable reel is hung on the hanging scaffold, and the steel wire rope is used for lowering the cables synchronously. The plurality of anchoring parts are respectively arranged at the two ends of the cross beam; the clamping plates are arranged on the cross beam at intervals, each clamping plate is provided with a plurality of mounting holes, and the adjacent mounting holes are used for mounting a steel wire rope and a cable respectively. According to the technical scheme, the problems that an existing fixing clamp in the prior art is large in size and not suitable for installation in a narrow space, and if the size of the fixing clamp is reduced, the fixing clamp is not suitable for laying and fixing cables with large diameters and thick cables are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable laying, in particular to an anti-twisting device for laying multiple cables in a narrow space of a deep well. Background Art

[0002] The existing fixing card is large in size and is not suitable for installation in a narrow space. Moreover, if the size of the fixing card is reduced, it is not suitable for laying and fixing cables with larger diameters and thicker thicknesses. Therefore, a new fixing card is needed to solve the above problems. Utility Model Content

[0003] The utility model proposes an anti-twisting device for laying multiple cables in a narrow space of a deep well, which solves the problem that the existing fixing card is large in size and is not suitable for installation in a narrow space, and if the size of the fixing card is reduced, it is not suitable for laying and fixing cables with larger diameters and thicker thicknesses.

[0004] The technical solution of the utility model is as follows:

[0005] The anti-twist device for laying multiple cables in a narrow space of a deep well includes a hoisting tray for entering the wellbore as a construction platform, a cable drum and a steel wire rope. The cable drum is hoisted on the hoisting tray, and the steel wire rope is used to be lowered synchronously with the cables. The fixing card includes:

[0006] beam;

[0007] There are a plurality of anchoring pieces, wherein the plurality of anchoring pieces are respectively arranged at both ends of the beam;

[0008] There are a plurality of card plates, which are spaced apart and arranged on the beam. Each card plate has a plurality of mounting holes, and adjacent mounting holes are used for mounting the steel wire rope and the cable respectively.

[0009] Optionally, the card board includes:

[0010] A first plate body is provided on the crossbeam, wherein the first plate body has a first arc-shaped groove;

[0011] a second plate body, disposed on the crossbeam, the second plate body having a second arc-shaped groove, the first arc-shaped groove and the second arc-shaped groove forming a mounting hole for fixing the cable or the wire rope;

[0012] An adjusting member is provided on the first plate and the second plate in sequence, and is used to drive the second plate to move closer to or away from the first plate.

[0013] Optionally, both the first plate and the second plate have built-in grooves, and further include:

[0014] a sliding plate slidably disposed in the built-in groove, the sliding plate being arc-shaped, and having a side surface of the sliding plate abutting against a circumferential side wall of the cable or the wire rope after the cable or the wire rope is installed in the installation hole;

[0015] A tension spring is arranged in the built-in groove, one end of the tension spring is arranged on the sliding plate, and the other end of the tension spring is arranged on the built-in groove, and the tension spring is used to provide a force to prevent the cable or wire rope from rotating.

[0016] Optionally, the sliding plate on the first plate body and the sliding plate on the second plate body are arranged in a centrally symmetrical manner.

[0017] Optionally, the sliding plate has a surface on one side close to the cable or the steel rope with a plurality of anti-slip protrusions arranged at intervals.

[0018] Optionally, the adjusting member includes:

[0019] a screw rod, passing through the first plate body and the second plate body in sequence;

[0020] An adjusting nut is threadedly provided on the screw rod, and the adjusting nut is located outside the crossbeam. After the adjusting nut is rotated, the screw rod is used to drive the second plate body to approach or move away from the first plate body.

[0021] Optionally, the anchor is an expansion bolt.

[0022] Optionally, the lay direction of the steel rope is opposite to the lay direction of the steel wires in the cable.

[0023] The working principle and beneficial effects of the utility model are as follows:

[0024] In the utility model, according to the size of the wellbore and the construction requirements, a hoisting tray of appropriate size and load-bearing capacity is selected and placed in the wellbore as a construction platform. Then, according to the type and quantity of cables, the corresponding cable reel is hoisted on the hoisting tray. Next, the installation position of the fixing card is determined. According to the layout of other facilities in the wellbore and the cable laying path, a suitable position is selected on the inner wall of the wellbore to install the fixing card. During installation, the fixing card is firmly fixed to the wellbore by anchoring. During the process of lowering the cables and wire ropes, when they reach the fixing card position, they are respectively embedded in the corresponding mounting holes. As the cables and wire ropes are continuously lowered, the fixing cards continue to be installed at appropriate intervals to ensure that the cables and wire ropes can be effectively limited and fixed throughout the wellbore. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0026] Figure 1 This is a schematic diagram of the installation position structure of the structural fixing card of the utility model;

[0027] Figure 2 This is a schematic diagram of the fixed card structure of the utility model;

[0028] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0029] In the figure: 1. shaft, 2. lifting plate, 3. cable reel, 41. fixing card, 4. clamping plate, 401. beam, 402. first plate, 4021. first arc-shaped groove, 4022. built-in groove, 4023. sliding plate, 4024. tension spring, 403. adjusting part, 4031. screw, 4032. adjusting nut, 404. second plate, 4041. second arc-shaped groove, 5. anchor. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0031] To simplify the drawings, only the parts relevant to the utility model are schematically shown 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 of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0032] 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 this utility model based on the specific circumstances.

[0033] 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.

[0034] Reference Figures 1 to 3 , which is the first embodiment of the utility model, proposes an anti-twisting device for laying multiple cables in a narrow space in a deep well, including a hoisting plate 2 for entering the wellbore 1 as a construction platform, a cable drum 3 and a wire rope, the cable drum 3 is hoisted on the hoisting plate 2, and the wire rope is used to be lowered synchronously with the cable, and the fixing card 41 includes: a beam 401; a plurality of anchors 5, and the plurality of anchors 5 are respectively arranged at both ends of the beam 401; a plurality of card plates 4, and the plurality of card plates 4 are arranged at intervals on the beam 401, and each card plate 4 has a plurality of mounting holes, and adjacent mounting holes are used to install wire ropes and cables respectively.

[0035] In the above scheme, the crossbeam 401 serves as the main structure and provides support for other components. There are several anchors 5, which are respectively arranged at both ends of the crossbeam 401. When the shaft 1 is installed, the anchor 5 is used to firmly fix the fixing card 41 on the inner wall of the shaft 1. For example, a hole is drilled at a specific position of the shaft 1, and the anchor 5 is inserted and fixed to ensure that the fixing card 41 will not be displaced during the cable laying process. There are several card plates 4, which are arranged at intervals on the crossbeam 401. Each card plate 4 has several mounting holes on the beam, and adjacent mounting holes are used to install wire ropes and cables respectively. When the cables and wire ropes are lowered through the fixing cards 41, they can be embedded in the corresponding mounting holes respectively, thereby limiting their lateral movement and ensuring the correct position of the cables and wire ropes in the shaft 1.

[0036] First, based on the size and construction requirements of the shaft 1, select a hoisting tray 2 of appropriate size and load-bearing capacity and place it in the shaft 1 as a construction platform. Then, depending on the type and quantity of cables, hoist the corresponding cable reels 3 onto the hoisting tray 2. For example, for high-voltage power cables and control signal cables, use cable reels 3 of different specifications, and arrange their positions on the hoisting tray 2 to ensure that the cables do not interfere with each other when lowered. Next, determine the installation position of the fixing card 41. Based on the layout of other facilities in the shaft 1 and the cable laying path, select a suitable location on the inner wall of the shaft 1 to install the fixing card 41. During installation, the fixing card 41 is firmly fixed to the shaft 1 using the anchor 5. During the process of lowering the cables and wire ropes, when they reach the fixing card 41 position, they are respectively embedded in the corresponding mounting holes. As the cables and wire ropes are continuously lowered, the fixing cards 41 are continuously installed at appropriate intervals according to the design requirements to ensure that the cables and wire ropes are effectively limited and fixed throughout the shaft 1.

[0037] Furthermore, the clamping plate 4 includes: a first plate body 402, which is arranged on the beam 401, and the first plate body 402 has a first arc groove 4021; a second plate body 404, which is arranged on the beam 401, and the second plate body 404 has a second arc groove 4041, and the first arc groove 4021 and the second arc groove 4041 form a mounting hole for fixing a cable or a wire rope; an adjusting member 403, and the adjusting member 403 is arranged on the first plate body 402 and the second plate body 404 in sequence, and the adjusting member 403 is used to drive the second plate body 404 to move closer to or away from the first plate body 402.

[0038] In the above scheme, the crossbeam 401 serves as the main support, and the anchors 5 at both ends securely fasten the fixing clip 41 to the inner wall of the shaft 1. The clip 4 includes a first plate 402 and a second plate 404, which are respectively mounted on the crossbeam 401. The first plate 402 has a first arcuate groove 4021, and the second plate 404 has a second arcuate groove 4041. The two plates form a mounting hole for securing cables or wire ropes. Adjustment members 403 are sequentially mounted on the first plate 402 and the second plate 404, which can drive the second plate 404 toward or away from the first plate 402, thereby accommodating cables and wire ropes of different diameters. When the cables and wire ropes are lowered, the adjustment member 403 on the card plate 4 is adjusted so that the second plate 404 is closer to or farther away from the first plate 402 according to the diameter of the cables or wire ropes, forming a mounting hole of appropriate size to accommodate the cables or wire ropes so that they are embedded in the corresponding mounting hole. As the cables or wire ropes are lowered, the fixing cards 41 are continuously installed at appropriate intervals to continuously limit the position of the cables and wire ropes. Through the reasonable arrangement and coordinated operation of the components, the quality of the cable laying is improved, the cable twisting and displacement are avoided, and its correct position in the shaft 1 is ensured. At the same time, the construction efficiency is also improved, the construction delays caused by the inapplicability of the fixing cards 41 are reduced, the smooth progress of the underground cable laying project in the mine is ensured, and the strict requirements of the mine construction on the project quality and progress are met.

[0039] Furthermore, the first plate body 402 and the second plate body 404 both have a built-in groove 4022, and also include: a sliding plate 4023, which is slidably arranged in the built-in groove 4022, and the sliding plate 4023 is arc-shaped. After the cable or cable rope is installed in the mounting hole, one side surface of the sliding plate 4023 abuts against the circumferential side wall of the cable or wire rope; a tension spring 4024, which is arranged in the built-in groove 4022, one end of the tension spring 4024 is arranged on the sliding plate 4023, and the other end of the tension spring 4024 is arranged on the built-in groove 4022, and the tension spring 4024 is used to provide a force to prevent the cable or wire rope from rotating.

[0040] In the above embodiment, both the first plate 402 and the second plate 404 of the clamping plate 4 have a unique design of built-in grooves 4022. A sliding plate 4023 is slidably disposed within the built-in grooves 4022 and is arcuate. When a cable or wire rope is installed in the mounting hole formed by the first plate 402 and the second plate 404, a side surface of the sliding plate 4023 abuts against the circumferential sidewall of the cable or wire rope due to its structure and the action of a tension spring 4024. The tension spring 4024 is disposed within the built-in grooves 4022, with one end connected to the sliding plate 4023 and the other end connected to the built-in grooves 4022. This provides a force for the sliding plate 4023 to prevent the cable or wire rope from rotating. When the cable or wire rope tends to rotate, the tension of the tension spring 4024 causes the sliding plate 4023 to abut more tightly against the sidewall of the cable or wire rope, thereby increasing friction and effectively preventing the cable or wire rope from rotating. The cooperation between sliding plate 4023 and tension spring 4024 further enhances the cable or wire rope's securement and pullback, effectively preventing rotation during installation and improving the stability and safety of cable installation. Furthermore, this design accommodates cables and wire ropes of varying diameters, enhancing the device's versatility and applicability, and better meeting the complex requirements of laying multiple cables within the confined spaces of deep wells.

[0041] Furthermore, the sliding plate 4023 on the first plate body 402 and the sliding plate 4023 on the second plate body 404 are arranged in a centrally symmetrical manner.

[0042] In the above embodiment, the sliding plates 4023 on the first plate 402 and the second plate 404 correspond in position to each other. With the crossbeam 401 as the axis of symmetry, the sliding plates 4023 on both sides are completely symmetrical. The two sliding plates 4023 have identical positions relative to the centerline of the crossbeam 401, including their positions within their respective built-in slots 4022 and their relative positions to the center of the mounting hole. During operation, when a cable or wire rope is installed in the mounting hole, the centrally symmetrical arrangement of the sliding plates 4023 allows them to simultaneously apply force to the cable or wire rope from both sides. If the cable or wire rope shows any tendency to rotate, whether clockwise or counterclockwise, the two symmetrical sliding plates 4023, under the action of the tension springs 4024, will simultaneously and tightly abut the circumferential sidewalls of the cable or wire rope. This symmetrical force distribution more evenly distributes friction, thereby more effectively preventing the cable or wire rope from rotating, significantly improving the anti-rotation effect compared to unilateral force application. This centrally symmetrical arrangement significantly enhances the device's ability to secure the cable or wire rope. It improves stability during cable laying, ensuring the cable and wire rope remain correctly positioned within the shaft 1, and reducing potential safety hazards and laying quality issues caused by rotation.

[0043] Furthermore, the sliding plate 4023 has a plurality of anti-slip protrusions arranged at intervals on a surface of one side close to the cable or wire rope.

[0044] In the above embodiment, the anti-slip projections on the side of the sliding plate 4023 that faces the cable or wire rope are used to enhance friction. The anti-slip projections can have various geometric shapes, such as triangular, trapezoidal, or semicircular, to increase contact friction with the cable or wire rope surface. The size of the projections should be moderate—neither too large to impede cable or wire rope installation nor too small to effectively prevent slippage. Their spaced arrangement ensures multiple friction points on the contact surface, preventing localized excessive or insufficient friction. Once the cable or wire rope is installed in the mounting hole, the sliding plate 4023, under the action of the tension spring 4024, approaches the cable or wire rope, whereupon the anti-slip projections come into close contact with the cable or wire rope surface. The presence of the anti-slip projections increases the roughness of the contact surface, significantly enhancing friction. If the cable or wire rope tends to rotate, these anti-slip projections effectively prevent it, as the friction between them and the cable or wire rope overcomes the force of rotation. The anti-slip protrusions further enhance the cable or wire rope's securement, effectively preventing rotation during installation and improving stability and safety. Furthermore, the device can accommodate cables or wire ropes with varying surface materials and roughness, enhancing its versatility and applicability, and better meeting the complex requirements of laying multiple cables within the confined spaces of deep wells.

[0045] Furthermore, the adjusting member 403 includes: a screw 4031, which passes through the first plate 402 and the second plate 404 in sequence; an adjusting nut 4032, which is threaded on the screw 4031, and the adjusting nut 4032 is located on the outside of the beam 401. After the adjusting nut 4032 is rotated, the screw 4031 is used to drive the second plate 404 closer to or away from the first plate 402.

[0046] In the above scheme, the screw 4031 passes through the first plate 402 and the second plate 404 in sequence, providing a rigid connection and transmission structure for adjusting the position of the second plate 404. The length of the screw 4031 needs to be designed based on the thickness of the first plate 402 and the second plate 404 and the required distance between them to ensure that they can effectively connect the two and have sufficient travel during the adjustment process. Its material is usually a metal material with high strength and rigidity, such as stainless steel or alloy steel, to withstand the tension and pressure that may be generated during the adjustment process. The adjusting nut 4032 is threaded on the screw 4031 and is located outside the crossbeam 401. This facilitates operation by the operator and also avoids interference with other components during the adjustment process. The thread design of the adjusting nut 4032 needs to precisely match the thread of the screw 4031 to ensure that the screw 4031 can be smoothly driven to move when the adjusting nut 4032 is turned, thereby achieving precise adjustment of the position of the second plate 404. When the size of the mounting hole formed by the clamping plate 4 needs to be adjusted to accommodate cables or wire ropes of different diameters, the operator rotates the adjusting nut 4032. Due to the threaded fit between the adjusting nut 4032 and the screw 4031, rotating the adjusting nut 4032 causes the screw 4031 to move axially. This axial movement of the screw 4031 drives the second plate 404 toward or away from the first plate 402. If the adjusting nut 4032 is rotated clockwise, the screw 4031 may move the second plate 404 toward the first plate 402, thereby reducing the diameter of the mounting hole. If the adjusting nut 4032 is rotated counterclockwise, the screw 4031 moves the second plate 404 away from the first plate 402, thereby increasing the diameter of the mounting hole. This design of the adjusting member 403 has significant benefits. It provides a simple, efficient, and precise adjustment method that can quickly adapt to cables or wire ropes of different diameters, improving the versatility and applicability of the device. The operator can easily adjust the size of the mounting hole of the card plate 4 according to actual conditions without having to replace the entire card plate 4 or use complicated tools, which greatly improves work efficiency and also ensures the accuracy and reliability of the cable and wire rope fixation during cable laying.

[0047] Furthermore, the anchor 5 is an expansion bolt.

[0048] In the above scheme, expansion bolts serve as anchors 5. These bolts possess a high anchoring force, ensuring that the fixing clips 41 are securely fixed to the inner wall of the shaft 1 and resist loosening even under the tension of cables and wire ropes. Installation is relatively simple, requiring no special tools and requiring only a standard wrench. Furthermore, the expansion bolts are highly versatile and can adapt to shaft 1 inner walls of varying materials and structures, improving the device's applicability and reliability and providing a stable, fixed foundation for cable laying within the confined spaces of deep wells.

[0049] Furthermore, the lay direction of the wire rope is opposite to the lay direction of the steel wires in the cable.

[0050] In the above scheme, the steel wire rope is lowered synchronously with the cable, and its lay direction is opposite to that of the steel wires in the cable. This arrangement effectively prevents twisting of the cable during lowering due to its own lay direction being aligned with the steel wire rope's, thus ensuring the quality and safety of the cable installation. For example, in some deep wellbores (1), this lay arrangement prevents damage to the cable due to twisting, thereby extending the cable's service life.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. An anti-twisting device for laying multiple cables in a narrow space of a deep well, comprising a hoisting tray (2) for entering a wellbore (1) as a construction platform, a cable drum (3), a steel wire rope and a fixing card (41), wherein the cable drum (3) is hoisted on the hoisting tray (2), and the steel wire rope is used to be lowered synchronously with the cables, characterized in that: The fixing card (41) comprises: beam(401); There are a plurality of anchoring pieces (5), wherein the plurality of anchoring pieces (5) are respectively arranged at both ends of the crossbeam (401); There are a plurality of card plates (4), and the plurality of card plates (4) are arranged at intervals on the crossbeam (401). Each crossbeam (401) has a plurality of mounting holes, and adjacent mounting holes are used for mounting the steel wire rope and the cable, respectively.

2. The anti-twisting device for laying multiple cables in a narrow space in a deep well according to claim 1 is characterized in that: The card plate (4) comprises: A first plate (402) is disposed on the crossbeam (401), wherein the first plate (402) has a first arc-shaped groove (4021); a second plate (404) disposed on the crossbeam (401), the second plate (404) having a second arc-shaped groove (4041), the first arc-shaped groove (4021) and the second arc-shaped groove (4041) forming a mounting hole for fixing a cable or the steel wire rope; An adjusting member (403), wherein the adjusting member (403) sequentially arranges the first plate body (402) and the second plate body (404), and the adjusting member (403) is used to drive the second plate body (404) to move closer to or away from the first plate body (402).

3. The anti-twisting device for laying multiple cables in a narrow space in a deep well according to claim 2 is characterized in that: The first plate (402) and the second plate (404) both have built-in grooves (4022), and further include: a sliding plate (4023) slidably disposed in the built-in groove (4022); the sliding plate (4023) is arc-shaped; after the cable or the steel wire rope is installed in the installation hole, a surface on one side of the sliding plate (4023) abuts against a circumferential side wall of the cable or the steel wire rope; A tension spring (4024) is arranged in the built-in groove (4022), one end of the tension spring (4024) is arranged on the sliding plate (4023), and the other end of the tension spring (4024) is arranged on the built-in groove (4022), and the tension spring (4024) is used to provide a force to prevent the cable or wire rope from rotating.

4. The anti-twisting device for laying multiple cables in a narrow space in a deep well according to claim 3 is characterized in that: The sliding plate (4023) on the first plate body (402) and the sliding plate (4023) on the second plate body (404) are arranged in a centrally symmetrical manner.

5. The anti-twisting device for laying multiple cables in a narrow space in a deep well according to claim 3 is characterized in that: The sliding plate (4023) has a surface on one side close to the cable or the steel rope and has a plurality of anti-slip protrusions arranged at intervals.

6. The anti-twisting device for laying multiple cables in a narrow space in a deep well according to claim 2, characterized in that: The regulating member (403) comprises: A screw (4031) passes through the first plate (402) and the second plate (404) in sequence; An adjusting nut (4032) is threadedly disposed on the screw rod (4031), and the adjusting nut (4032) is located outside the crossbeam (401). When the adjusting nut (4032) is rotated, the screw rod (4031) is used to drive the second plate body (404) to move closer to or away from the first plate body (402).

7. The anti-twisting device for laying multiple cables in a narrow space in a deep well according to claim 1 is characterized in that: The anchoring piece (5) is an expansion bolt.

8. The anti-twisting device for laying multiple cables in a narrow space in a deep well according to claim 1 is characterized in that: The lay direction of the steel rope is opposite to the lay direction of the steel wires in the cable.

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