A portable fire-resistant cable metal sheath stripping device

Abstract

A portable fireproof cable metal sheath stripping device comprises an arc frame, a first through hole for passing a cable is provided at the front end of the arc frame, handles are provided at the left and right ends of the arc frame, the handles are hollow structures, a cutting wheel rod is provided in the handles, the cutting wheel rod passes through the handles, a cutting wheel is provided at one end of the cutting wheel rod located in the arc frame, and the other end of the cutting wheel rod is connected to an adjustment rod. The portable fireproof cable metal sheath stripping device provided by the present invention has the characteristics of simple manufacture and convenient use, and is very suitable for quickly stripping the outer copper sheath when making intermediate joints and terminal heads of fireproof cables, improving efficiency, and is 10 times the wire stripping speed of ordinary diagonal pliers, saving time and labor.

Description

Technical Field

[0001] The invention relates to the technical field of cable cutting, in particular to a portable fireproof cable metal sheath stripping device. Background Art

[0002] Fireproof cable is a new type of cable with a copper or aluminum sheath on the metal outer layer, mica tape or powdered magnesium oxide as insulation, and a Class I or Class II twisted conductor as the conductor. It has the characteristics of high temperature resistance, fire resistance, explosion resistance, and non-combustion. Therefore, it is widely used in dangerous, harsh, and high-temperature environments such as nuclear power plants, metallurgy, mines, and kilns. In recent years, it has also been widely used in high-rise buildings, airports, docks, subways, and other places to ensure the uninterrupted operation of fire-fighting electricity and large equipment in harsh environments such as fires. However, due to the special structure of fireproof cables, it is necessary to strip the metal sheath when laying cables, making terminal heads, and testing and measuring other aspects of performance. Sometimes it is necessary to strip a long distance. In most cases before, simply using diagonal pliers to strip a little bit, making a terminal head, an intermediate joint, or measuring resistance after stripping, the time required is often more than 10 times that of making an ordinary cable head, and the time required to strip a short distance must be cut and then stripped again. This method is also very easy to damage the mica tape or mineral insulation layer, which wastes manpower and time and affects the progress of the project to a certain extent. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a portable fireproof cable metal sheath stripping device, which can conveniently and quickly cut the metal sheath longitudinally.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a portable fire-proof cable metal sheath stripping device, including an arc frame, a first through hole for the cable to pass through is provided at the front end of the arc frame, and handles are provided at the left and right ends of the arc frame. The handle is a hollow structure, and a cutting wheel rod is provided in the handle. The cutting wheel rod passes through the handle, and a cutting wheel is provided at one end of the cutting wheel rod located in the arc frame, and the other end of the cutting wheel rod is connected to the adjusting rod.

[0005] Preferably, the surface of the adjusting rod is provided with an external thread, and the inner wall of the handle is provided with an internal thread meshing with the external thread; the end of the adjusting rod connected to the cutting wheel rod is provided with a rotatable shaft, and the end of the shaft is fixedly connected to the cutting wheel rod.

[0006] Preferably, the cutting wheel is arranged on a cutting wheel seat, the cutting wheel seat is sleeved on the end of the cutting wheel rod, and a first compression spring is arranged between the cutting wheel seat and the cutting wheel rod.

[0007] Preferably, a rectangular frame is further provided at the rear side of the arc-shaped frame, and a second through hole for allowing cables to pass through is provided in the middle of the rectangular frame.

[0008] Preferably, a first wire wheel is provided on the inner side of the arc frame, the first wire wheel is provided on a first wire rod, the first wire rod is inserted into the first base, and a second compression spring is provided between the first wire rod and the first base.

[0009] Preferably, a second guide wheel is provided on the inner side of the rectangular frame, the second guide wheel is provided on a second guide rod, the second guide rod is inserted into the second base, and a third compression spring is provided between the second guide rod and the second base.

[0010] Preferably, longitudinal guide wheels are provided on the upper and lower sides of the first through hole on the inner side of the arc frame; brackets are provided on the left and right sides of the first through hole, and longitudinal guide wheel mounting grooves are provided on the top and bottom of the brackets, the longitudinal guide wheel is installed on the longitudinal guide wheel mounting rod, and the longitudinal guide wheel mounting rod is inserted into the longitudinal guide wheel mounting groove, and a fourth compression spring is provided between the bottom of the longitudinal guide wheel mounting rod and the bottom of the longitudinal guide wheel mounting groove.

[0011] Preferably, a rotating wheel is also provided at the end of the adjusting rod.

[0012] Preferably, a wire groove is provided in the middle of the wire wheel.

[0013] The portable fireproof cable metal sheath stripping device provided by the present invention has the characteristics of simple production and easy use. It is very suitable for quickly stripping the outer copper sheath when making fireproof cable intermediate joints and terminal heads, which improves efficiency. The stripping speed is 10 times that of ordinary diagonal pliers, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a structural schematic diagram of the front side of the present invention;

[0017] Figure 3 For the present invention Figure 1 Sectional view of the AA plane;

[0018] Figure 4 It is a structural schematic diagram of the wire wheel of the present invention;

[0019] Figure 5 It is a schematic diagram of the structure when the present invention is used. DETAILED DESCRIPTION

[0020] like Figure 1-3A portable fireproof cable metal sheath stripping device is disclosed, comprising an arc frame 1, a first through hole 4 for passing the cable is provided at the front end of the arc frame 1, handles 2 are provided at the left and right ends of the arc frame 1, the handle 2 is a hollow structure, a cutting wheel rod 3 is provided in the handle 2, the cutting wheel rod 3 passes through the handle 2, a cutting wheel 5 is provided at one end of the cutting wheel rod 3 located in the arc frame 1, and the other end of the cutting wheel rod 3 is connected to an adjusting rod 6.

[0021] Preferably, the surface of the adjusting rod 6 is provided with an external thread, and the inner wall of the handle 2 is provided with an internal thread meshing with the external thread; the end of the adjusting rod 6 connected to the cutting wheel rod 3 is provided with a rotatable shaft 7, and the end of the shaft 7 is fixedly connected to the cutting wheel rod 3.

[0022] Preferably, the cutting wheel 5 is arranged on a cutting wheel seat 8 , the cutting wheel seat 8 is sleeved on the end of the cutting wheel rod 3 , and a first compression spring 9 is provided between the cutting wheel seat 8 and the cutting wheel rod 3 .

[0023] Preferably, a rectangular frame 10 is further provided at the rear side of the arc-shaped frame 1 , and a second through hole 11 for cables to pass through is provided in the middle of the rectangular frame 10 .

[0024] Preferably, a first wire wheel 12 is provided on the inner side of the arc frame 1 , the first wire wheel 12 is provided on a first wire rod 13 , the first wire rod 13 is inserted into a first base 14 , and a second compression spring 15 is provided between the first wire rod 13 and the first base 14 .

[0025] Preferably, a second guide wheel 16 is provided on the inner side of the rectangular frame 10 , the second guide wheel 16 is provided on a second guide rod 17 , the second guide rod 17 is inserted into a second base 18 , and a third compression spring 19 is provided between the second guide rod 17 and the second base 19 .

[0026] Preferably, longitudinal guide wheels 20 are provided on the inner side of the arc frame 1 and above and below the first through hole 4; brackets 21 are provided on the left and right sides of the first through hole 4, and longitudinal guide wheel mounting grooves 22 are provided at the top and bottom of the brackets 21. The longitudinal guide wheel 20 is installed on a longitudinal guide wheel mounting rod 23, and the longitudinal guide wheel mounting rod 23 is inserted into the longitudinal guide wheel mounting groove 22, and a fourth compression spring 24 is provided between the bottom of the longitudinal guide wheel mounting rod 23 and the bottom of the longitudinal guide wheel mounting groove 22.

[0027] Preferably, a rotating wheel 25 is further provided at the end of the adjusting rod 6 .

[0028] Preferably, Figure 4 As shown, a wire groove 26 is provided in the middle of the wire wheel.

[0029] When using, Figure 5As shown, the cable to be cut is introduced from the first through hole 4, and after passing through the first through hole 4, the longitudinal guide wheel 20 performs longitudinal correction on the cable. When the cable passes through, the longitudinal guide wheel 20 moves up and down respectively, the fourth compression spring 24 is stretched, and the longitudinal guide wheel 20 clamps the cable in the vertical direction. Then the cable passes through the first wire wheel 12. When the cable passes through the first guide wheel 12, the first guide wheel 12 moves to the left and right sides, and the second compression spring 15 is compressed. Under the action of the second compression spring 15, the first guide wheel 12 clamps the cable in the horizontal direction; similarly, the second guide wheel 16 clamps the cable again at the rear side of the cutting wheel 5 to ensure that the cable remains in a straight line during the cutting process of the cutting wheel; the cable passes through the second through hole 11.

[0030] Rotate the adjusting rod 6 to make the cutting wheel closely contact with the side wall of the cable, then fix the cable, hold the handle 2 with both hands, pull the device back and forth on the cable, and the cutting wheel 5 will make a back and forth longitudinal cut on the side wall of the cable. After 3-5 reciprocating movements, the metal sheath can be cut open.

[0031] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A portable fire-resistant cable metal sheath stripping device, characterized in that: The arc frame (1) comprises an arc frame (1), a first through hole (4) for passing a cable is provided at the front end of the arc frame (1), handles (2) are provided at the left and right ends of the arc frame (1), the handle (2) is a hollow structure, a cutting wheel rod (3) is provided inside the handle (2), the cutting wheel rod (3) passes through the handle (2), a cutting wheel (5) is provided at one end of the cutting wheel rod (3) located inside the arc frame (1), and the other end of the cutting wheel rod (3) is connected to an adjustment rod (6); A rectangular frame (10) is also provided on the rear side of the arc-shaped frame (1), and a second through hole (11) for allowing cables to pass through is provided in the middle of the rectangular frame (10); A longitudinal guide wheel (20) is provided on the inner side of the arc frame (1) and above and below the first through hole (4); a bracket (21) is provided on the left and right sides of the first through hole (4); a longitudinal guide wheel mounting groove (22) is provided at the top and bottom of the bracket (21); the longitudinal guide wheel (20) is mounted on a longitudinal guide wheel mounting rod (23); the longitudinal guide wheel mounting rod (23) is inserted into the longitudinal guide wheel mounting groove (22); and a fourth compression spring (24) is provided between the bottom of the longitudinal guide wheel mounting rod (23) and the bottom of the longitudinal guide wheel mounting groove (22).

2. According to claim 1, a portable fire-resistant cable metal sheath stripping device is characterized in that: The surface of the adjusting rod (6) is provided with an external thread, and the inner wall of the handle (2) is provided with an internal thread meshing with the external thread; the end of the adjusting rod (6) connected to the cutting wheel rod (3) is provided with a rotatable shaft (7), and the end of the shaft (7) is fixedly connected to the cutting wheel rod (3).

3. A portable fire-resistant cable metal sheath stripping device according to claim 1 or 2, characterized in that: The cutting wheel (5) is arranged on a cutting wheel seat (8), the cutting wheel seat (8) is sleeved on the end of the cutting wheel rod (3), and a first compression spring (9) is arranged between the cutting wheel seat (8) and the cutting wheel rod (3).

4. According to claim 1, a portable fire-resistant cable metal sheath stripping device is characterized in that: A first wire wheel (12) is provided on the inner side of the arc frame (1), the first wire wheel (12) is provided on a first wire rod (13), the first wire rod (13) is plugged into a first base (14), and a second compression spring (15) is provided between the first wire rod (13) and the first base (14).

5. According to claim 1, a portable fire-resistant cable metal sheath stripping device is characterized in that: A second conductor wheel (16) is provided on the inner side of the rectangular frame (10), the second conductor wheel (16) is provided on a second conductor rod (17), the second conductor rod (17) is plugged into a second base (18), and a third compression spring (19) is provided between the second conductor rod (17) and the second base (18).

6. A portable fire-resistant cable metal sheath stripping device according to claim 1, characterized in that: A rotating wheel (25) is also provided at the end of the adjusting rod (6).

7. A portable fire-resistant cable metal sheath stripping device according to claim 1, characterized in that: A guide wire groove (26) is provided in the middle of the guide wire wheel.

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