Adjustable cable joint insulation wrapping auxiliary tool

Abstract

The present application relates to the technical fields of electric power construction and maintenance, in particular to an adjustable cable joint insulation binding auxiliary tool, which comprises a base, a universal joint fixedly installed on the top of the base, an installation plate fixed to the end of the universal joint away from the base, a positioning support welded to the end of the installation plate away from the universal joint, a connecting frame installed on the end of the positioning support away from the installation plate through bolts, a tension ring fixedly installed on the end of the connecting frame away from the positioning support, and a buckle assembly fixedly installed on the surface of the tension ring; the cooperation of the pulling knob, the insertion rod and the return spring of the buckle assembly can quickly open and close the first and second arc-shaped rings, so that the cable joint can be quickly put in; the tool can be self-adapted to cables with different diameters, ensure stable clamping and reduce the trouble of replacing the tool; the meshing transmission of the rack and the gear in the positioning support and the universal ball head of the universal joint can greatly improve the operation quality and efficiency.

Description

Technical Field

[0001] This invention relates to the field of power construction and maintenance technology, specifically to an adjustable cable joint insulation wrapping auxiliary tool. Background Technology

[0002] In power systems, cables are key carriers of electrical energy transmission, and the insulation performance of their joints is of paramount importance. Cable joints are not only nodes for cable connection, but also crucial links for ensuring safe and stable power transmission. Good insulation can effectively prevent electrical breakdown, reduce partial discharge, and resist external environmental erosion (such as moisture and chemical corrosion), avoiding cable faults caused by decreased insulation performance, thereby ensuring the reliable operation of the power system and reducing the adverse effects of power outages on industrial production and residents' lives.

[0003] Currently, manual wrapping is still widely used in many cable joint insulation wrapping operations. Manual wrapping has several drawbacks: Firstly, the varying skill levels and operating habits of operators lead to inconsistent wrapping quality. For example, the tightness of the insulation tape during wrapping is difficult to maintain, easily resulting in areas that are too tight or too loose. Too tight a tape may damage the cable insulation layer, while too loose a tape will not provide sufficient insulation protection, affecting the insulation performance and service life of the cable joint. Secondly, manual wrapping is inefficient, especially when dealing with a large number of cable joints, making it difficult to meet the needs of rapid construction in power engineering. Furthermore, some auxiliary tools lack pipe diameter self-adaptation capabilities and are only suitable for cable joints of specific diameters. When dealing with cables of different specifications, frequent tool changes are required, increasing construction and time costs. Therefore, in order to improve the quality and efficiency of cable joint insulation wrapping and reduce construction costs and safety risks, an adjustable cable joint insulation wrapping auxiliary tooling is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an adjustable cable joint insulation wrapping auxiliary tool, which has the advantages of adapting to cable joints of different diameters and enabling flexible adjustment at multiple angles. It solves the problem that existing auxiliary tools do not have pipe diameter self-adaptation function, can only be used for cable joints of specific diameters, and require frequent tooling changes when dealing with cables of different specifications, thus increasing construction and time costs.

[0005] The adjustable cable joint insulation wrapping auxiliary tooling of the present invention includes a base, a universal joint fixedly installed on the top of the base, a mounting plate fixedly installed at the end of the universal joint away from the base, a positioning bracket welded to the end of the mounting plate away from the universal joint, a connecting frame installed at the end of the positioning bracket away from the mounting plate by bolts, a tensioning ring fixedly installed at the end of the connecting frame away from the positioning bracket, and a snap-fit ​​assembly fixedly installed on the surface of the tensioning ring; The tensioning ring includes a first arc ring and a second arc ring located inside the tensioning ring. A rotating shaft is rotatably installed in the inner cavity of one end of the first arc ring. Weight reduction grooves are provided around the surface of both the first and second arc rings. Multiple strong springs are installed at equal intervals between the inner walls of the first and second arc rings. An elastic slider is welded to one end of each strong spring. Scale values ​​are provided on the top surface of both the first and second arc rings. The buckle assembly includes a connecting block, which is welded to the end of the first arc ring away from the rotation axis. The connecting block has an installation cavity inside, and a plug extending into the installation cavity is movably installed inside the connecting block. A return spring is sleeved on the surface of the plug, and the top of the plug extends to the outside of the connecting block. A pull knob is welded to the top of the plug, and a plug is fixedly installed at one end of the second arc ring.

[0006] Preferably, the positioning bracket includes a fixed plate, which is welded to one end of the mounting plate. The fixed plate has a movable groove inside, and a rotating shaft is rotatably installed on the front and rear inner walls of the movable groove. Gears are rotatably installed on the surfaces of the two rotating shafts. A movable plate is slidably connected inside the movable groove, and racks are fixedly installed on both the front and rear sides of the movable plate.

[0007] Preferably, one end of each movable plate extends to the outside of the movable groove and is connected to the connecting frame, and both racks mesh with the surface of the gear.

[0008] Preferably, a square block is fixedly installed at the end of the second arc-shaped ring away from the insert block, and the square block has an installation groove that is fixedly connected to the rotating shaft.

[0009] Preferably, the insert extends into the interior of the mounting cavity, and the interior of the insert has a limiting groove adapted to the insert rod, the insert rod extends into the limiting groove, and the top of the return spring is fixedly connected to the inner top wall of the mounting cavity.

[0010] Preferably, the inner surface of the elastic slider is an arc-shaped fitting surface, the curvature of which is consistent with the inner wall curvature of the tensioning ring, and the outer surface of each elastic slider is provided with a spring groove that is adapted to the welding of the strong spring.

[0011] Preferably, the cross-section of the weight-reducing groove is U-shaped, the groove width is 8-12mm, the groove depth is 4-6mm, and the edges of both ends of the groove are provided with rounded corners with a radius of 1-2mm.

[0012] Preferably, the elastic slider is made of polytetrafluoroethylene, and a silicone rubber pad with a thickness of 1-2mm is attached to its inner arc-shaped adapter surface; the strong spring and the return spring are made of 65Mn spring steel.

[0013] Preferably, the universal joint includes a lower connecting ball seat fixed to the base, a universal ball head rotatably mounted on the top of the lower connecting ball seat, and the lower connecting ball seat and the base are fixed by circumferentially distributed locking bolts; one end of the universal ball head is fixed to an upper connecting flange, and the upper connecting flange is fixed to the mounting plate by circumferentially distributed locking bolts.

[0014] Compared with the prior art, the present invention provides an adjustable cable joint insulation wrapping auxiliary tooling, which has the following beneficial effects: 1. This invention utilizes the combination of a pull knob, a plug rod, and a return spring in the snap-fit ​​assembly to quickly open and close the No. 1 and No. 2 arc rings. Combined with the flexible rotation of the rotating shaft, it facilitates the rapid insertion of cable connectors. The combination of a powerful spring and an elastic slider can adapt to cables of different diameters, ensuring stable clamping and reducing the hassle of changing tooling.

[0015] 2. This invention, by setting up a rack and gear meshing transmission in the positioning bracket, combined with the universal ball joint, can precisely adjust the position and angle of the tension ring, greatly improving the quality and efficiency of the operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is a structural diagram of the tensioning ring and the snap-fit ​​assembly; Figure 4 This is a partial sectional view of the positioning bracket; Figure 5 Exploded view of the tension ring and snap-fit ​​assembly; Figure 6 Top view of the tension ring and snap-fit ​​assembly; Figure 7 This is a structural diagram of the snap-fit ​​assembly.

[0017] In the diagram: 1. Base; 2. Universal joint; 201. Lower connecting ball seat; 202. Universal ball head; 203. Upper connecting flange; 3. Mounting plate; 4. Positioning bracket; 401. Fixed plate; 402. Movable groove; 403. Rotating shaft; 404. Gear; 405. Moving plate; 406. Rack; 5. Connecting frame; 6. Tensioning ring; 601. First arc ring; 602. Second arc ring; 603. Rotating shaft; 604. Weight reduction groove; 605. Strong spring; 606. Elastic slider; 607. Scale value; 7. Snap-fit ​​assembly; 701. Connecting block; 702. Mounting cavity; 703. Insert rod; 704. Return spring; 705. Pull knob; 706. Insert block. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1-7 The adjustable cable joint insulation wrapping auxiliary tooling described in this embodiment includes a base 1, a universal joint 2 fixedly installed on the top of the base 1, a mounting plate 3 fixedly installed at the end of the universal joint 2 away from the base 1, a positioning bracket 4 welded to the end of the mounting plate 3 away from the universal joint 2, a connecting bracket 5 installed at the end of the positioning bracket 4 away from the mounting plate 3 by bolts, a tensioning ring 6 fixedly installed at the end of the connecting bracket 5 away from the positioning bracket 4, and a snap-fit ​​assembly 7 fixedly installed on the surface of the tensioning ring 6; The tensioning ring 6 includes a first arc-shaped ring 601 and a second arc-shaped ring 602 located inside the tensioning ring 6. A rotating shaft 603 is rotatably installed in the inner cavity of one end of the first arc-shaped ring 601. Weight-reducing grooves 604 are provided around the surface of both the first arc-shaped ring 601 and the second arc-shaped ring 602. Multiple strong springs 605 are installed at equal intervals between the inner walls of the first arc-shaped ring 601 and the second arc-shaped ring 602. An elastic slider 606 is welded to one end of each strong spring 605. Scale values ​​607 are provided on the top surface of both the first arc-shaped ring 601 and the second arc-shaped ring 602.

[0020] When the cable connector is inserted into the tensioning ring 6, the first arc ring 601 and the second arc ring 602 open and close via the rotating shaft 603. The mounting groove inside the block fixes the rotating shaft 603, ensuring stable rotation of both. The outer wall of the cable presses against the elastic slider 606, causing it to compress the inner strong spring 605. The spring's reaction force pushes the elastic slider 606 to fit tightly against the cable surface, adapting to cables of different diameters. The operator can control the wrapping length via the scale value 607.

[0021] The cooperation between the rotating shaft 603 and the square mounting slot allows the No. 1 arc ring 601 and the No. 2 arc ring 602 to open and close flexibly, making it easy to quickly fit the cable connector; no fewer than five strong springs 605 are evenly distributed, making the clamping force of the elastic slider 606 on the cable more balanced and avoiding local loosening; the weight reduction groove 604 is used to reduce the weight of the tension ring 6, avoid violent shaking during operation, and improve the quality and efficiency of operation.

[0022] The buckle assembly 7 includes a connecting block 701, which is welded to the end of the first arc ring 601 away from the rotating shaft 603. The connecting block 701 has an installation cavity 702 inside. A plug rod 703 extending into the installation cavity 702 is movably installed inside the connecting block 701. A return spring 704 is sleeved on the surface of the plug rod 703. The top of the plug rod 703 extends to the outside of the connecting block 701, and a pull knob 705 is welded to the top of the plug rod 703. A plug block 706 is fixedly installed at one end of the second arc ring 602.

[0023] During installation, pulling knob 705 moves the insertion rod 703 upward, compressing the return spring 704 and disengaging it from the limiting groove of the insertion block 706. At this time, the first arc ring 601 and the second arc ring 602 can be opened around the rotating shaft 603. After inserting the cable, close the two arc rings, and the insertion block 706 enters the mounting cavity 702 of the connecting block 701. Release the pulling knob 705, and the return spring 704 rebounds, pushing the insertion rod 703 into the limiting groove of the insertion block 706, thus completing the locking.

[0024] The pull knob 705 makes the operation of the insertion rod 703 more convenient. Combined with the automatic rebound of the return spring 704, it enables the quick opening and closing of the buckle assembly 7, improving installation efficiency. The cooperation between the insertion block 706 and the mounting cavity 702, and the precise docking between the insertion rod 703 and the limiting groove, ensure the stability of the connection between the first arc ring 601 and the second arc ring 602, and prevent the tension ring 6 from opening and closing due to the buckle loosening during the bandaging process.

[0025] The positioning bracket 4 includes a fixing plate 401, which is welded to one end of the mounting plate 3. The fixing plate 401 has a movable groove 402 inside. The front and rear inner walls of the movable groove 402 are rotatably mounted with rotating shafts 403. The surfaces of the two rotating shafts 403 are rotatably mounted with gears 404. The movable groove 402 is slidably connected to a moving plate 405. The front and rear sides of the moving plate 405 are fixedly mounted with racks 406.

[0026] One end of each of the movable plates 405 extends to the outside of the movable groove 402 and is connected to the connecting frame 5, and both racks 406 mesh with the surface of the gear 404.

[0027] When the position of the tension ring 6 needs to be adjusted, the movable plate 405 is pushed or pulled. The racks 406 on its front and rear sides will mesh with the gears 404 on the surface of the rotating shaft 403 in the movable groove 402. The gears 404 move with the racks 406 and rotate around the rotating shaft 403, guiding the movable plate 405 to slide smoothly in the movable groove 402 of the fixed plate 401, thereby driving the tension ring 6 to achieve position adjustment through the connecting frame 5.

[0028] The meshing transmission between the rack 406 and the gear 404 makes the sliding of the moving plate 405 in the movable groove 402 smoother and more precise, avoiding jamming or offset during adjustment and ensuring the accuracy of the tension ring 6 position adjustment; the fixed plate 401 provides stable support for the entire positioning bracket 4, and together with the rotating shaft 403 to fix the gear 404, it improves the structural stability of the positioning bracket 4 during the adjustment process and can better adapt to the stress conditions during the bandaging operation.

[0029] A square block is fixedly installed at the end of the second arc-shaped ring 602 away from the insert block 706, and the square block has an installation groove that is fixedly connected to the rotating shaft 603.

[0030] The insert 706 extends into the interior of the mounting cavity 702, and a limiting groove adapted to the insert rod 703 is provided inside the insert 706. The insert rod 703 extends into the limiting groove, and the top of the return spring 704 is fixedly connected to the inner top wall of the mounting cavity 702.

[0031] The inner surface of the elastic slider 606 is an arc-shaped fitting surface, and its curvature is consistent with the inner wall curvature of the tension ring 6. Furthermore, the outer surface of each elastic slider 606 is provided with a spring slot that is welded to and adapted to the strong spring 605.

[0032] The weight-reducing groove 604 has a U-shaped cross-section, a groove width of 8-12mm, a groove depth of 4-6mm, and both ends of the groove opening edge are provided with rounded corners with a radius of 1-2mm.

[0033] The elastic slider 606 is made of polytetrafluoroethylene, and a silicone rubber pad with a thickness of 1-2mm is attached to its inner arc-shaped adapter surface; the strong spring 605 and the return spring 704 are made of 65Mn spring steel.

[0034] The universal joint 2 includes a lower connecting ball seat 201 fixed to the base 1, a universal ball head 202 rotatably mounted on the top of the lower connecting ball seat 201, and the lower connecting ball seat 201 and the base 1 are fixed by circumferentially distributed locking bolts; one end of the universal ball head 202 is fixed to an upper connecting flange 203, and the upper connecting flange 203 and the mounting plate 3 are fixed by circumferentially distributed locking bolts.

[0035] In universal joint 2, the lower connecting ball seat 201 is fixed to the base 1, providing stable support for the entire universal joint 2; the universal ball head 202 is rotatably mounted on the top of the lower connecting ball seat 201, and can rotate 360°, driving the upper connecting flange 203 and the connected mounting plate 3, positioning bracket 4 and other components to adjust the angle. The universal ball head 202 is damped; the upper connecting flange 203 is used to connect the mounting plate 3, transmitting the rotation of the universal ball head 202 to the subsequent components; the circumferentially distributed locking bolts can be fixed after the lower connecting ball seat 201 and the upper connecting flange 203 are adjusted to a suitable angle, preventing angle deviation and ensuring the stability of the device angle during the wrapping operation.

[0036] The working process of this invention is as follows: 1. Fix the base 1 in the working position, pull the pull knob 705 of the buckle assembly 7 to compress the return spring 704 and disengage the plug 703 from the limiting groove of the plug block 706, open the first arc ring 601 and the second arc ring 602 around the rotating shaft 603, and put the cable connector into the tension ring 6. 2. Close the first arc ring 601 and the second arc ring 602, the insert block 706 enters the mounting cavity 702 of the connecting block 701, release the pull knob 705, and the reset spring 704 pushes the insert rod 703 into the limit groove to complete the locking. 3. The outer wall of the cable presses against the elastic slider 606, compressing the strong spring 605. The spring's reaction force makes the elastic slider 606 fit tightly against the cable surface. When the position needs to be adjusted, push or pull the moving plate 405 of the positioning bracket 4. Through the meshing transmission of the rack 406 and the gear 404, the moving plate 405 slides in the movable groove 402 of the fixed plate 401. The front and rear positions of the tensioning ring 6 are adjusted through the connecting frame 5. 4. Rotate the universal ball joint 202 of the universal joint 2 to drive the upper connecting flange 203 and subsequent components to adjust the angle. Finally, wrap the insulating tape around the fixed cable joint. First, wrap the upper and lower sides of the tension ring 6 respectively. After completion, open the buckle assembly 7 and the tension ring 6, remove the device from the cable joint, and then wrap the middle section.

Claims

1. An adjustable cable joint insulation wrapping aid characterized by, Includes a base (1), a universal joint (2) is fixedly installed on the top of the base (1), a mounting plate (3) is fixed to the end of the universal joint (2) away from the base (1), a positioning bracket (4) is welded to the end of the mounting plate (3) away from the universal joint (2), a connecting bracket (5) is installed on the end of the positioning bracket (4) away from the mounting plate (3) by bolts, a tension ring (6) is fixedly installed on the end of the connecting bracket (5) away from the positioning bracket (4), and a snap-fit ​​assembly (7) is fixedly installed on the surface of the tension ring (6); The tensioning ring (6) includes a first arc ring (601) and a second arc ring (602) located inside the tensioning ring (6). A rotating shaft (603) is rotatably installed in the inner cavity of one end of the first arc ring (601). A weight-reducing groove (604) is provided around the surface of the first arc ring (601) and the second arc ring (602). Multiple strong springs (605) are installed at equal distances between the inner walls of the first arc ring (601) and the second arc ring (602). An elastic slider (606) is welded to one end of each strong spring (605). A scale value (607) is provided on the top surface of the first arc ring (601) and the second arc ring (602). The buckle assembly (7) includes a connecting block (701), which is welded to one end of the first arc ring (601) away from the rotating shaft (603). The connecting block (701) has an installation cavity (702) inside. A plug rod (703) extending into the installation cavity (702) is movably installed inside the connecting block (701). A return spring (704) is sleeved on the surface of the plug rod (703). The top of the plug rod (703) extends to the outside of the connecting block (701), and a pull knob (705) is welded to the top of the plug rod (703). A plug block (706) is fixedly installed at one end of the second arc ring (602).

2. The adjustable cable splice insulation wrapping aid of claim 1, wherein, The positioning bracket (4) includes a fixing plate (401), which is welded to one end of the mounting plate (3). The fixing plate (401) has a movable groove (402) inside. The front and rear inner walls of the movable groove (402) are rotatably mounted with rotating shafts (403). The surfaces of the two rotating shafts (403) are rotatably mounted with gears (404). The movable groove (402) is slidably connected to a moving plate (405), and racks (406) are fixedly mounted on both the front and rear sides of the moving plate (405).

3. The adjustable cable splice insulation wrapping aid of claim 2, wherein, One end of each of the movable plates (405) extends to the outside of the movable groove (402) and is connected to the connecting frame (5), and both racks (406) mesh with the surface of the gear (404).

4. The adjustable cable splice insulation wrapping aid of claim 1, wherein, The second arc-shaped ring (602) has a block fixedly installed at one end away from the insert block (706), and the block has an installation groove inside that is fixedly connected to the rotating shaft (603).

5. The adjustable cable joint insulation wrapping auxiliary tooling according to claim 1, characterized in that, The insert (706) extends into the interior of the mounting cavity (702), and the interior of the insert (706) is provided with a limiting groove that is compatible with the insert rod (703). The insert rod (703) extends into the limiting groove, and the top of the return spring (704) is fixedly connected to the inner top wall of the mounting cavity (702).

6. The adjustable cable joint insulation wrapping auxiliary tooling according to claim 1, characterized in that, The inner surface of the elastic slider (606) is an arc-shaped fitting surface, and its curvature is consistent with the inner wall curvature of the tension ring (6). The outer surface of each elastic slider (606) is provided with a spring slot that is welded to the strong spring (605).

7. The adjustable cable joint insulation wrapping auxiliary tooling according to claim 1, characterized in that, The universal joint (2) includes a lower connecting ball seat (201) fixed to the base (1), and a universal ball head (202) is rotatably mounted on the top of the lower connecting ball seat (201). The lower connecting ball seat (201) and the base (1) are fixed by circumferentially distributed locking bolts.

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