Cable outer sheath stripping tool

Abstract

The utility model relates to the field of cutting equipment, in particular to handheld cutting equipment for stripping sheaths of armored cables or other cables with hard outer sheaths, and particularly relates to a cable outer sheath stripping tool. Comprising a guiding part, a cutting part and an elastic connecting part, the guiding part and the cutting part are connected through the elastic connecting part, the guiding part makes contact with a cable and limits the cable, the cutting part is guided by the elastic connecting part to penetrate through the guiding part to cut the cable according to needs, and a cross-shaped cutting window is formed in the guiding part. The cutting part can penetrate through the cable in a transverse or longitudinal mode and cut the cable in the radial direction or the axial direction. The tool is arranged on a cable to be processed through the guide part, and then the surface of the cable is radially and axially cut through the cutting part, so that an outer sheath on the surface of the cable is finally cut and conveniently taken down from the cable.

Description

Technical Field

[0001] The utility model relates to the field of cutting equipment, in particular to a handheld cutting equipment for stripping the sheath of armored cables or other cables with hard outer sheaths, in particular to a cable outer sheath stripping tool. Background Art

[0002] Armored cable is a flexible, solid assembly made of conductors of various materials enclosed in an insulating metal sheath. Its main components include: 1. Conductor: This acts as the core of the cable, carrying current; 2. Insulation: This wraps around the conductor to prevent current leakage and interference; 3. Armor: This is typically made of metal materials such as steel strips and wires, and increases the cable's mechanical strength, corrosion resistance, and mechanical protection, such as tensile and compressive strength, to extend its service life; 4. Outer sheath: This covers the armor for further protection. Due to its unique structural characteristics, armored cable is particularly suitable for areas susceptible to mechanical damage and corrosion, as well as locations with high electrical safety requirements, such as rocky areas, crossing highways and squares, along roads and railways with high vibration levels, and in hospitals and schools.

[0003] However, during actual construction, the outer sheath of armored cables can present a challenge for construction workers: the sheath is typically quite hard, making it difficult to peel manually with a knife. Furthermore, when peeling the outer sheath, special care must be taken to avoid damaging the inner insulation layer, as this could cause current leakage or interference, impacting the cable's transmission performance.

[0004] Manually stripping the outer jacket of armored cables or other cables with rigid outer jackets requires skill, experience, and patience. Currently, workers either use a traditional small tool like a utility knife to slowly cut the jacket multiple times before removing it from the cable using brute force, or they use an angle grinder (also known as a grinding wheel) to cut the jacket and then remove it. However, either approach is inefficient due to excessive care and meticulousness, or the pursuit of efficiency leads to accelerated cutting, resulting in damage to the cable and insulation due to excessive cutting depth.

[0005] In summary, it is necessary to propose a portable device that can quickly and safely cut the outer sheath of an armored cable, so as to meet the needs of armored cable installation operations. Utility Model Content

[0006] The purpose of the utility model is to overcome the above-mentioned defects and to provide a cable outer sheath stripping tool with the functions of assisting cable positioning, guiding cutting direction and guiding cutting depth.

[0007] In order to achieve the above object, the utility model is achieved as follows:

[0008] A cable outer sheath stripping tool comprises a guide portion and an elastic connecting portion of a cutting portion, wherein the guide portion and the cutting portion are connected via the elastic connecting portion. The guide portion contacts the cable and limits its position. Under the guidance of the elastic connecting portion, the cutting portion passes through the guide portion to cut the cable as required. When not in operation, the cutting portion is hidden in the guide portion due to the elastic action of the elastic connecting portion, thereby avoiding accidental cutting. A cross-shaped cutting window is provided on the guide portion, and the cutting portion is longitudinally or transversely connected to the guide portion via the elastic connecting portion, so that the cutting portion can pass through the cutting window on the guide portion in a transverse or longitudinal manner and perform radial or axial cutting on the cable.

[0009] The cable outer sheath stripping tool proposed by the present invention "sits" on the cable to be processed through the guide part, and then the surface of the cable is cut radially and axially respectively through the cutting part, so that the outer sheath on the cable surface is finally cut and conveniently removed from the cable; secondly, during the cutting process, the elastic connecting part is used to guide the cutting part and provide a damping effect in the opposite direction of the cutting direction, so that the cutting part can stably cut the outer sheath of the cable; and after the cutting is completed, the cutting part is retracted into the guide part under the action of the elastic connecting part, so as to avoid accidental cutting.

[0010] Furthermore, in order to achieve the above-mentioned effects, the present invention further proposes a guide portion, a cutting portion and an elastic connecting portion, as follows:

[0011] In the utility model, the guide portion includes a guide cover (13) and a connecting seat (10). The side projection of the guide cover (13) is arc-shaped and is used to cover the surface of the cable and limit its position. The connecting seat (10) is provided on the surface of the guide cover (13). The connecting seat (10) is used to connect the guide cover (13) with the elastic connecting portion; and a cutting window (12) is provided on the surface of the guide cover (13).

[0012] The guide cover (13) is able to fit on the surface of the cable due to its arc-shaped structure, so that the entire tool can "sit" on the cable; and a cross-shaped cutting window (12) is formed on the surface of the guide cover (13), so that the entire tool can perform radial or axial cutting on the cable at the same position.

[0013] In the present invention, the elastic connection part includes a base (5), a spring (7) and a support plate (4), the two ends of the spring (7) are respectively connected to the base (5) and the support plate (4), the support plate (4) is connected to the cutting part, and the base (5) is used to connect to the guide part. It also includes a guide column (6), which is inserted into the spring (7) and connected to the base (5) and the support plate (4), respectively. In this way, when the spring (7) is compressed, it reciprocates along the guide (6), so that the guide part and the elastic connection part are elastically connected.

[0014] Furthermore, the base (5) is annular, and an annular receiving groove (11) is provided on the connecting seat (10). Thus, the base (5) is arranged in the receiving groove (11), and the base (5) is rotated to achieve a longitudinal or transverse connection between the cutting portion and the guide portion, so that the cutting portion can pass through the cutting window on the guide portion in a transverse or longitudinal manner and perform radial or axial cutting on the cable.

[0015] Furthermore, a bolt blind hole is provided in the receiving groove (11), and a bolt through hole is provided on the base (5); thereby, a threaded switching column (9) is passed through the bolt blind hole and the bolt through hole respectively, thereby fixing the receiving groove (11) and the base (5); the bolt through holes are usually provided at 3 o'clock, 6 o'clock, 9 o'clock and 12 o'clock positions of the base (5).

[0016] Furthermore, the spring (7) and the guide column (6) are used in pairs, and are symmetrically arranged around the base (5) and the other ends of the springs are connected to the cutting portion through the support plate (4).

[0017] In the elastic connection part, the connection between the annular base (5) and the connection seat (10) enables the entire elastic connection part to rotate in the guide part, thereby facilitating the cutting part to change its position in the cutting window (12) and realize radial or axial cutting of the cable at the same position. On this basis, the spring (7) and the guide column (6) are used as a guide structure to provide auxiliary guidance for the cutting part, thereby facilitating the control of the cutting direction and cutting depth of the cutting part. At the same time, springs with different stiffnesses are replaced according to the weight of the cutting part or the hardness of the outer sheath of the cable to be cut. When the weight of the cutting part is greater or the hardness of the outer sheath of the cable is greater, a spring with a greater stiffness coefficient is used. In this way, it is possible to provide the cutting part with appropriate resistance during the cutting process, thereby facilitating the application of force to the cutting part and facilitating the cutting operation.

[0018] In the utility model, the cutting part comprises a motor (1), a cutting blade (2) and a protective frame (3); the cutting blade is connected to the output shaft of the motor (1) and is driven by the motor to rotate and cut; the protective frame (3) is provided outside the cutting blade (2); the protective frame (3) is fixedly connected to the motor (1) and is also connected to the elastic connecting part.

[0019] The cutting portion is actually designed with reference to a common handheld angle grinder, so that the cable outer sheath stripping tool proposed by the present invention has wider practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the structural diagram of the scheme Figure 1 ;

[0021] Figure 2 This is the structural diagram of the scheme Figure 2 ;

[0022] Figure 3 This is the structural diagram of the scheme Figure 3 ;

[0023] Figure 4 This is the structural diagram of the scheme Figure 4 ;

[0024] 1. Motor; 2. Cutting blade; 3. Protective frame; 4. Support plate; 5. Base; 6. Guide column; 7. Spring; 8. Switching hole; 9. Switching column; 10. Connecting plate; 11. Receiving groove; 12. Cutting window; 13. Guide cover. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions of the embodiments of the present application in conjunction with the accompanying drawings. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection requested by this application.

[0026] A stripping tool includes a motor 1 and a cutting part, wherein the motor 1 contains a power supply and a motor for operating the cutting part. The cutting part includes a cutting blade 2 connected to the motor output shaft, and a protective frame 3 fixed to the motor 1. The protective frame 3 is used to cover the part of the cutting blade 2 that is not in the working space. During operation, the cutting blade 2 rotates under the action of the motor to complete the cutting of the cable outer sheath.

[0027] Among them, four support plates 4 are provided on the protective frame 3, the support plates 4 are L-shaped, one end of the support plate 4 is fixedly set on the protective frame 3, and a guide hole is opened at the other end of the support plate 4. The other end of the support plate 4 is connected to the base 5, and the base 5 is plugged into the guide holes on the support plate 4 through four guide columns 6 and corresponds one to one.

[0028] The base 5 is connected to a guide cover 13, one end of the guide cover 13 is used to attach the outer sheath of the cable to be cut, and the other end is used to connect to the base 5. The base 5 is evenly provided with four switching holes 8 in the circumferential direction. Two switching columns 9 are symmetrically provided at the other end of the guide cover 13. The switching columns 9 can be inserted into the two oppositely arranged switching holes 8. When the cutting direction needs to be adjusted, it is only necessary to remove the guide cover 13 and rotate it 90° to insert the switching column 9 into the other two switching holes 8 to complete the switching of the cutting direction.

[0029] The guide column 6 can move in the axial direction inside the support plate 4. A spring 7 is sleeved on each guide column 6. One end of the spring 7 is fixed to the base 5, and the other end of the spring 7 is fixed to the support plate 4. At this time, under the action of the spring 7, the base 5 can float on the support plate 4 in the axial direction of the guide column 6. When the spring 7 is in a non-compressed state, the cutting blade 2 is always located inside the guide cover 13, that is, when not working, even if the cutting blade 2 is in a rotating state, it cannot be extended, reducing the risk of injury to personnel or other objects by the cutting tool.

[0030] A connecting plate 10 is also provided on the guide cover 13, and a receiving groove 11 is provided on the connecting plate 10. At this time, the switching column 9 is located in the receiving groove 11, and the receiving groove 11 is used to place the base 5. The bottom end surface of the receiving groove 11 abuts against the upper end surface of the base 5. Two mutually perpendicular cutting windows 12 are provided on the guide cover 13. The cutting window 12 is used to place the cutting blade 2. With the cooperation of the guide column 6 and the guide hole, the guide cover 13 can realize relative reciprocating displacement with the cutting blade 2. When the outer sheath of the cable to be cut abuts against the guide cover 13, the cutting blade 2 can be extended at the cutting window 12 to complete the cutting of the outer sheath of the cable.

[0031] Different guide covers 13 can be designed according to the different outer diameters of the cable outer sheath to facilitate the degree of adhesion with the cable outer sheath to be cut, avoiding the risk of manual difficulty in controlling the motor 1 due to large friction between the cutting blade 2 and the cable outer sheath during cutting.

[0032] In the above embodiment:

[0033] The use of electric power to drive cutting avoids the laborious and time-consuming situation of pulling the cable or pulling the cutting tool to complete the cable outer sheath.

[0034] The guide cover is set up so that the corresponding guide cover can be replaced according to the outer sheaths of cables of different models and different outer diameters, thereby improving the adaptability of the cutting tool.

[0035] The base is used, so when cutting in different directions, personnel only need to manually switch the angle of the guide cover to achieve cutting in different directions, without the need to replace or add other parts.

[0036] By means of the provided spring, when no cutting is being performed, the guide cover can always protect the cutting blade under the action of the spring to avoid hurting people or damaging other objects.

[0037] Furthermore, in the above embodiment, a depth scale may be provided between the cutting portion and the elastic connecting portion, so that the cutting depth can be controlled by adjusting the degree of the depth scale during the cutting process.

[0038] The above are only embodiments provided for this application and are not intended to limit this application. Although this application has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application should be included in the scope of protection of this application.

Claims

1. A cable outer sheath stripping tool, characterized by: The invention relates to an elastic connecting part comprising a guide part and a cutting part, wherein the guide part and the cutting part are connected by the elastic connecting part. The guide part contacts the cable and limits it. Under the guidance of the elastic connecting part, the cutting part passes through the guide part to cut the cable as needed. When not in operation, the cutting part is hidden in the guide part due to the elastic action of the elastic connecting part, thereby avoiding accidental cutting. A cross-shaped cutting window is provided on the guide part, and the cutting part is connected to the guide part longitudinally or transversely through the elastic connecting part, so that the cutting part can pass through the cutting window on the guide part in a transverse or longitudinal manner and perform radial or axial cutting on the cable.

2. The cable outer sheath stripping tool according to claim 1, characterized in that: The guide portion comprises a guide cover (13) and a connecting seat (10). The side projection of the guide cover (13) is arc-shaped and is used to cover the surface of the cable and limit its position. The connecting seat (10) is provided on the surface of the guide cover (13). The connecting seat (10) is used to connect the guide cover (13) with the elastic connecting portion. A cutting window (12) is provided on the surface of the guide cover (13).

3. The cable outer sheath stripping tool according to claim 1, characterized in that: The elastic connection portion comprises a base (5), a spring (7) and a support plate (4), wherein two ends of the spring (7) are respectively connected to the base (5) and the support plate (4), the support plate (4) is connected to the cutting portion, and the base (5) is used to be connected to the guide portion.

4. The cable outer sheath stripping tool according to claim 3, characterized in that: The guide column (6) is also included. The guide column (6) is inserted into the spring (7) and is connected to the base (5) and the support plate (4) respectively. In this way, the spring (7) reciprocates along the guide column (6) after being compressed, so that an elastic connection is achieved between the guide part and the elastic connection part.

5. The cable outer sheath stripping tool according to claim 1, characterized in that: The cutting portion comprises a motor (1), a cutting blade (2) and a protective frame (3); the cutting blade is connected to the output shaft of the motor (1) and is driven by the motor to rotate and cut; the protective frame (3) is arranged outside the cutting blade (2); the protective frame (3) is fixedly connected to the motor (1) and is also connected to the elastic connecting portion.

6. The cable outer sheath stripping tool according to claim 2 or 3, characterized in that: The base (5) is annular, and an annular receiving groove (11) is provided on the connecting seat (10). Thus, the base (5) is arranged in the receiving groove (11), and the base (5) is rotated to achieve a longitudinal or transverse connection between the cutting portion and the guide portion, so that the cutting portion can pass through the cutting window on the guide portion in a transverse or longitudinal manner and perform radial or axial cutting on the cable.

7. The cable outer sheath stripping tool according to claim 6, characterized in that: A bolt blind hole is provided in the accommodating groove (11), and a bolt through hole is provided on the base (5); thereby, the threaded switching column (9) passes through the bolt blind hole and the bolt through hole respectively, thereby fixing the accommodating groove (11) and the base (5).

8. The cable outer sheath stripping tool according to claim 3 or 4, characterized in that: The spring (7) and the guide column (6) are used in pairs and are symmetrically arranged around the base (5) and the other ends of the springs are connected to the cutting portion through the support plate (4).

9. The cable outer sheath stripping tool according to claim 3 or 4, characterized in that: According to the weight of the cutting part or the hardness of the outer sheath of the cable to be cut, replace the springs with different spring rates. When the weight of the cutting part is greater or the hardness of the outer sheath of the cable is greater, use a spring with a greater spring rate.

10. The cable outer sheath stripping tool according to claim 7, characterized in that: Bolt through holes are respectively provided at the 3 o'clock, 6 o'clock, 9 o'clock and 12 o'clock positions of the base (5).

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