A cable lead sheath non-destructive stripping tool
By designing a non-destructive stripping tool for cable lead sheaths, and utilizing a combination of a main assembly frame and a cutting head, non-destructive stripping of lead sheaths was achieved, solving the problem of cable damage during lead sheath stripping in traditional methods, and improving operational efficiency and adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- FAR EAST SUBMARINE CABLE CO LTD
- Filing Date
- 2025-01-03
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional lead sheath removal methods can easily damage the cable itself and require high operational skills.
A non-destructive stripping tool for cable lead sheaths was designed, comprising a main assembly frame, a split lateral internal support frame, a front-mounted cutting head, and a movable cutting head. The non-destructive stripping of the lead sheath is achieved through the cooperation of an inclined control handle and a side-mounted control support rod.
It reduces damage to the cable core, improves stripping efficiency, offers diverse operating methods, is highly adaptable, reduces usage costs, and is compact and portable.
Smart Images

Figure CN119765130B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of cable lead sheath stripping technology, and in particular to a non-destructive cable lead sheath stripping tool. Background Technology
[0002] With the development of offshore wind power high-voltage transmission technology, the application scale of high-voltage submarine cable splicing technology is increasing, and its importance is becoming increasingly prominent. In high-voltage transmission, submarine cables, generally acting as continuous lines, require the connection of various parts into a single unit. Typically, the individual parts are manufactured in a factory, and then connected using flexible joints. As the most critical component in the entire submarine cable production process, the flexible joint's structural dimensions are very similar to the cable itself, possessing the same electrical, mechanical, bending, and service life characteristics. As a key element in cable production, its manufacturing cycle and pass rate directly affect production progress and order delivery dates, and also significantly impact the safety of the cable line.
[0003] Lead sheaths possess excellent corrosion resistance, flexibility, and stable extrusion processing performance, and have long been used as metal sheaths for communication cables and paper-insulated cables. Because lead sheaths are very flexible, they are typically tightly adhered to the cable core surface during extrusion. Therefore, removing the lead sheath can easily scratch the cable core or cause lateral compression. Thus, there is a need to develop a more efficient and damage-free tool for removing lead sheaths. The traditional method involves first using a utility knife to gently make a slit along the middle of the top of the lead sheath, approximately half the thickness of the sheath, and then prying it open with a screwdriver. This method easily damages the cable itself and requires skilled operation. Summary of the Invention
[0004] The technical problem to be solved by this invention is that traditional lead sheath stripping methods easily damage the cable body and require high operational skills.
[0005] The technical solution adopted by the present invention to solve its technical problem is: a non-destructive stripping tool for cable lead sheaths, including a main assembly frame, on both sides of the main assembly frame are fixedly installed with split lateral internal support frames by bolts, a front cutting head for cutting cable lead sheaths is fixedly installed on the outer end of the main assembly frame, a movable cutting head is movably installed on the outer side of the front cutting head through a connecting shaft, the control end of the movable cutting head has an integrated inclined control handle, a side-mounted control support rod for auxiliary control of the inclined control handle is movably connected to the upper outer end of the main assembly frame, and side-mounted flange covers for facilitating flange turning of the cable lead sheath cutting opening are fixedly installed on both sides of the inclined control handle.
[0006] Assembly through holes are provided on the main assembly frame at the bottom horizontal section, the side oblique section, and the side longitudinal section.
[0007] A return spring is movably fitted between the main assembly frame and the inclined control handle.
[0008] The inclined control handle has an external flip ring that moves through it, and the extended end of the side-mounted control support rod is movably fitted with a top hook that cooperates with the external flip ring.
[0009] The outer longitudinal section of the main assembly frame is fixed with an outer control handle by bolts.
[0010] The upper end of the side wall of the outer control handle is equipped with a control button for controlling the extension and retraction adjustment of the side-mounted control strut.
[0011] An external lithium battery for supplying the side-mounted control strut is fixedly mounted on the side wall of the main assembly frame.
[0012] The lateral inclined section of the main assembly frame is fixedly installed with inclined adjustment guide rails on both sides by assembly bolts.
[0013] An external limiting frame for laterally limiting the side-mounted control strut is fixedly mounted on the side wall of the main assembly frame.
[0014] The inclined adjustment guide rail is movably fitted with a position-adjustable guide wheel assembly on its outer side.
[0015] The beneficial effects of this invention are:
[0016] (1) The cable lead sheath non-destructive stripping tool of the present invention can greatly reduce the lead sheath stripping efficiency by adopting the operation of front-end cutting and two-sided flanging.
[0017] (2) Compared with traditional stripping methods, this device greatly reduces the damage to the cable core;
[0018] (3) It can be operated manually or electronically, offering more diverse operating methods;
[0019] (4) By adopting an external installation method, it is convenient for later maintenance and reduces the cost of use;
[0020] (5) The cable lead sheath can be disassembled and replaced according to its specifications, which greatly improves the compatibility.
[0021] (6) The entire stripping mechanism is small in size, easy to operate and easy to carry. Attached Figure Description
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Figure 1 This is the front view of the present invention.
[0024] Figure 2 This is a rear view of the present invention.
[0025] Figure 3 This is a side view of the present invention. Detailed Implementation
[0026] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.
[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0028] Figure 1 , Figure 2 and Figure 3 The cable lead sheath non-destructive stripping tool shown includes a main assembly frame 1. Two separate lateral internal support frames 2 are fixedly installed on both sides of the main assembly frame 1 via bolts. A front cutting head 3 for cutting the cable lead sheath is fixedly installed on the outer end of the main assembly frame 1. A movable cutting head 31 is movably installed on the outer side of the front cutting head 3 via a connecting shaft. The control end of the movable cutting head 31 has an integrated inclined control handle 4. A side-mounted control support rod 5 for auxiliary control of the inclined control handle 4 is movably connected to the upper outer end of the main assembly frame 1. Side-mounted flange covers 6 are fixedly installed on both sides of the inclined control handle 4 to facilitate flange turning of the cable lead sheath cutting opening.
[0029] Operating principle: First, a ring cut is made using a ring cutter; then, a cut of appropriate depth is made at the center above the lead sleeve using the front cutting head 3 and the movable cutting head 31; then, the split-type side internal support frame 2 is inserted into the cut, and the cut is set between the front cutting head 3 and the movable cutting head 31. Then, the cut is pushed forward manually or electrically along the cut. While pushing, the scissor-like cutting is performed by pressing the inclined control handle 4 upward, thereby gradually expanding the cut length. At the same time, as the inclined control handle 4 is flipped upward, the side flange 6 is driven to flip the edges on both sides of the cut, thereby expanding the cut.
[0030] To facilitate external fixed assembly, the main assembly frame 1 is provided with assembly through holes 7 in the bottom horizontal section, the side oblique section and the side longitudinal section.
[0031] To facilitate elastic reset, a reset spring 8 is movably mounted between the main assembly frame 1 and the inclined control handle 4.
[0032] The two ends of the return spring 8 are respectively installed on the main assembly frame 1 and the inclined control handle 4, and are reset by elastic pulling.
[0033] To facilitate end assembly and disassembly, the inclined control handle 4 has an external flip ring 9 that moves through its interior, and the extended end of the side-mounted control support rod 5 is movably equipped with a top hook 10 that mates with the external flip ring 9.
[0034] The side-mounted control strut 5 flips downwards, and then the top hook 10 is put on the outer flip ring 9. In this way, the side-mounted control strut 5 retracts, thereby controlling the inclined control handle 4 to flip upwards, thereby controlling the movable cutting head 31 to flip downwards, and then cooperating with the front cutting head 3 to cut.
[0035] To facilitate lateral assembly control, an outer control handle 11 is bolted to the outer longitudinal section of the main assembly frame 1.
[0036] For easy control and adjustment, a control button 12 for controlling the extension and retraction adjustment of the side-mounted control strut 5 is installed on the upper side wall of the outer control handle 11.
[0037] People control the main assembly frame 1 by holding the outer control handle 11. When electrical operation is required, simply press the control button 12, and then control the side-mounted control support rod 5 to reciprocate. The side-mounted control support rod 5 controls the tilted control handle 4 to flip and adjust through reciprocating extension and retraction, thereby controlling the movable cutting head 31 to cooperate with the front cutting head 3 to cut the lead sleeve. At the same time, while the tilted control handle 4 is reversed upward, the side-mounted flange cover 6 is used to squeeze and flip outward, thereby flipping the lead sleeve walls on both sides of the cut outward, thereby enlarging the cut size.
[0038] To facilitate independent power supply, an external lithium battery 13 for supplying power to the side-mounted control support rod 5 is fixedly mounted on the side wall of the main assembly frame 1.
[0039] The external lithium battery 13 is connected in series with the control button 12 and the side-mounted control support rod 5. The control button 12 is used to adjust the extension and retraction of the side-mounted control support rod 5.
[0040] To accommodate the inclined guide, inclined adjustment rails 14 are fixedly installed on both sides of the lateral inclined section of the main assembly frame 1 by assembly bolts.
[0041] The inclined adjustment guide rail 14 is fixedly assembled with the lateral inclined section of the main assembly frame 1 by means of fixing bolts passing through the assembly through hole 7, and the electric control screw is movably assembled inside the inclined adjustment guide rail 14.
[0042] Control button 12 can also independently control the rotation of the electric lead screw.
[0043] In order to facilitate the storage and limiting of the side-mounted control strut 5, an external limiting frame 15 for lateral limiting of the side-mounted control strut 5 is fixedly mounted on the side wall of the main assembly frame 1.
[0044] When the side-mounted control strut 5 needs to be retracted, first control the side-mounted control strut 5 to retract its extended end, then align the extended end of the side-mounted control strut 5 with the external limiting frame 15, and then control the side-mounted control strut 5 to extend and insert into the external limiting frame 15, thereby limiting the position of the side-mounted control strut 5.
[0045] To facilitate the guide drive adjustment, an adjustable guide wheel assembly 16 is movably mounted on the outer side of the inclined adjustment guide rail 14.
[0046] The position-adjustable guide wheel assembly 16 includes an internal thread adjustment block slidably mounted inside the inclined adjustment guide rail 14, an external bracket fixed to the outside of the internal thread adjustment block, and an electric drive wheel mounted on the end of the external bracket. The internal thread adjustment block is assembled and adjusted by being threaded into the electric control screw inside the inclined adjustment guide rail 14. By controlling the position-adjustable guide wheel assembly 16 downward, the position-adjustable guide wheel assembly 16 contacts the outer surface of the lead sleeve. This not only limits the cutting by squeezing and avoids overcutting, but also allows for easy forward or backward movement after cutting, facilitating subsequent cutting and separation.
[0047] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A non-destructive stripping tool for cable lead sheaths, comprising a main assembly frame (1), characterized in that: The main assembly frame (1) is fixedly installed with a split lateral internal support frame (2) on both sides by bolts. The outer end of the main assembly frame (1) is fixedly equipped with a front cutting head (3) for cutting cable lead sheaths. The outer side of the front cutting head (3) is movably equipped with a movable cutting head (31) through a connecting shaft. The control end of the movable cutting head (31) has an integrated inclined control handle (4). The upper outer side of the main assembly frame (1) is movably connected with a side-mounted control support rod (5) for auxiliary control of the inclined control handle (4). The inclined control handle (4) is fixedly equipped with a side-mounted flange cover (6) for facilitating flange turning of the cable lead sheath cutting opening. A return spring (8) is movably fitted between the main assembly frame (1) and the inclined control handle (4); The inclined control handle (4) has an external flip ring (9) that moves through it, and the extended end of the side-mounted control support rod (5) is movably equipped with a top hook (10) that cooperates with the external flip ring (9).
2. The cable lead sheath non-destructive stripping tool according to claim 1, characterized in that: Assembly through holes (7) are provided on the main assembly frame (1) at the bottom horizontal section, the side oblique section and the side longitudinal section.
3. The cable lead sheath non-destructive stripping tool according to claim 1, characterized in that: The outer longitudinal section of the main assembly frame (1) is fixed with an outer control handle (11) by bolts.
4. The cable lead sheath non-destructive stripping tool according to claim 3, characterized in that: The upper side wall of the outer control handle (11) is equipped with a control button (12) for controlling the extension and retraction adjustment of the side-mounted control strut (5).
5. The cable lead sheath non-destructive stripping tool according to claim 1, characterized in that: An external lithium battery (13) for powering the side-mounted control strut (5) is fixedly mounted on the side wall of the main assembly frame (1).
6. The cable lead sheath non-destructive stripping tool according to claim 2, characterized in that: The main assembly frame (1) has inclined adjustment rails (14) fixedly installed on both sides of the lateral inclined section by assembly bolts.
7. The cable lead sheath non-destructive stripping tool according to claim 1, characterized in that: An external limiting frame (15) for laterally limiting the side-mounted control strut (5) is fixedly mounted on the side wall of the main assembly frame (1).
8. The cable lead sheath non-destructive stripping tool according to claim 6, characterized in that: The inclined adjustment guide rail (14) is movably fitted with a position-adjustable guide wheel assembly (16) on its outer side.
Citation Information
Patent Citations
Cable metal sheath stripping device
CN118174200A