Smooth aluminum sheath girdling tool

Abstract

The utility model relates to the technical field of power cables, and discloses a smooth aluminum sheath girdling tool convenient for stripping a smooth aluminum sheath, which comprises an aluminum sheath fixing sleeve and a ratchet wrench detachably arranged at the end of the aluminum sheath fixing sleeve, and the axis of the ratchet wrench is perpendicular to the axis of the aluminum sheath fixing sleeve. The aluminum sheath fixing sleeve comprises a sleeve piece, a fixing bolt arranged on the outer side of the sleeve piece and at least two sets of limiting nuts, the two sets of limiting nuts are fixed to the outer circumferential face of the sleeve piece in the axial direction, and a rod piece part of the fixing bolt sequentially penetrates through the two limiting nuts to be connected with a fixing nut. The fixing nut is arranged on the outer side of any limiting nut, and a set gap exists between the fixing bolt and the outer wall of the sleeve piece.

Description

Technical Field

[0001] The utility model relates to the technical field of power cables, in particular to a smooth aluminum sheath ring stripping tool. Background Art

[0002] With the continuous expansion and upgrading of infrastructure construction such as energy and transportation, smooth aluminum sheathed cables are widely used in power systems, urban rail transit, petrochemicals, aerospace and other fields. In the production steps of conventional cable accessories, a fixed length of smooth aluminum sheath needs to be cut off.

[0003] At present, the stripping of smooth aluminum sheathed cables still uses conventional corrugated tube stripping tools (crescent knife). The crescent knife contains a circular blade. When stripping, the crescent knife roller is stuck on the surface of the sheath layer. There is no depth adjustment screw on the circular blade. The blade is adjusted to the surface of the sheath to start circumcision. The screw is adjusted after each circumcision to increase the circumcision depth until the sheath layer is broken. The thickness of the smooth aluminum sheath is about 1.5 mm. Because the distance between the sheath layer and the cable shielding layer is too close, it is impossible to determine whether the circumcision is in place when the crescent knife is circumcised. Once the circumcision is too deep, it is easy to scratch the outer shielding layer of the cable. Because the gap between the sheath layer and the outer shielding of the cable is too close, the crescent knife stripping tool currently used on site needs to be very cautious when operating. In view of this, researchers in this field have designed a smooth aluminum sheath circumcision tool that is easy to strip the smooth aluminum sheath. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a smooth aluminum sheath ring stripping tool, which mainly solves the problem of smooth aluminum sheath stripping to improve the convenience and quality of joint installation.

[0005] The technical solution of the utility model is: a smooth aluminum sheath ring stripping tool, comprising an aluminum sheath fixing sleeve and a ratchet wrench for disassembling the aluminum sheath fixing sleeve at the end thereof, the axis of the ratchet wrench being perpendicular to the axis of the aluminum sheath fixing sleeve, the aluminum sheath fixing sleeve comprising a sleeve piece, a fixing bolt arranged on the outside of the sleeve piece and at least two groups of limit nuts, the two groups of limit nuts being axially fixed on the outer circumferential surface of the sleeve piece, the rod portion of the fixing bolt being sequentially penetrated by two of the limit nuts and connected with a fixing nut, the fixing nut being arranged on the outside of any of the limit nuts, and a set gap being present between the fixing bolt and the outer wall of the sleeve piece.

[0006] It can be seen from the above scheme that the ratchet wrench is disassembled and arranged at the end of the sleeve piece, the ratchet wrench is used to drive the sleeve piece to rotate, the rod portion of the fixing bolt is inserted into two limit nuts, the fixing nut is used to fix the end of the fixing bolt, the axis of the fixing bolt is parallel to the axis of the sleeve piece, and the gap between the fixing bolt and the sleeve piece is used to insert the disconnected aluminum sheath and bend it to fix it on the screw rod, and the cut aluminum sheath is removed by rotating the ratchet wrench.

[0007] The ratchet wrench includes a mounting portion, a handle portion, and a handle rod arranged between the mounting portion and the handle portion. The mounting portion includes a ratchet section and a wrench head section arranged coaxially. A connector is protruded from the side of the ratchet section. A limit hole is arranged on the side wall of the connector. An elastic clamping assembly is arranged in the limit hole. It can be seen that the ratchet section drives the sleeve member to rotate through the connector. The handle portion is used for the operator to grasp and rotate easily. The mounting portion is used to realize the disassembly connection on the aluminum sheath fixing sleeve through the connector. The elastic clamping assembly is used for elastic clamping for the installation and disassembly between the Xi'an ratchet wrench and the aluminum sheath fixing sleeve.

[0008] The elastic clamping assembly includes a spring and a locking ball, one end of the spring is fixed to the inner wall of the limiting hole, and the other end is connected to the locking ball. It can be seen that the locking ball is connected to the spring to achieve elastic movement in the limiting hole.

[0009] The end of the sleeve is provided with a mounting groove, the mounting groove is adapted to the connector, and the sleeve is provided with a locking ball groove adapted to the locking ball on the inner wall of the mounting groove. It can be seen that the locking ball is installed in the locking ball groove to fix the connector in the mounting groove, so as to realize the limited fixation of the ratchet wrench at the end of the sleeve, so as to facilitate the sleeve to rotate when the ratchet wrench is turned.

[0010] The connector is in a tetrahedral configuration, the sides of the connector are chamfered, and the four corners of the mounting slot are outwardly expanded with arc grooves. It can be seen that the four sides of the connector are chamfered, and the four corners of the mounting slot are outwardly expanded with arc grooves, which is convenient for insertion in the mounting slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is an exploded view of the utility model;

[0013] Figure 3 It is a partial structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0015] like Figures 1 to 3 As shown, the utility model is a smooth aluminum sheath ring stripping tool, comprising an aluminum sheath fixing sleeve 1 and a ratchet wrench 2 for disassembly arranged at the end of the aluminum sheath fixing sleeve 1, the axis of the ratchet wrench 2 is perpendicular to the axis of the aluminum sheath fixing sleeve 1, the aluminum sheath fixing sleeve 1 comprises a sleeve member 3, a fixing bolt 4 arranged on the outside of the sleeve member 3 and at least two groups of limit nuts 5, the two groups of limit nuts 5 are axially fixed on the outer circumference of the sleeve member 3, the rod portion of the fixing bolt 4 is sequentially penetrated by two of the limit nuts 5 and connected with a fixing nut 6, the fixing nut 6 is arranged on the outside of any of the limit nuts 5, and there is a set gap between the fixing bolt 4 and the outer wall of the sleeve member 3. In this embodiment, the sleeve member 3 is arranged in a cylindrical shape, and the height of the limit nut 5 is selected according to the thickness of the smooth aluminum sheath 1. The two limit nuts 5 are welded in parallel and fixed on the outer circumference of the sleeve member 3. The two limit nuts 5 are separated by a distance of one end. The fixing bolts 4 are passed through the limit nuts 5 at both ends and locked to fix the smooth aluminum sheath 1.

[0016] The ratchet wrench 2 includes a mounting portion 21, a handle portion 22, and a handle rod 23 arranged between the mounting portion 21 and the handle portion 22. The mounting portion 21 includes a ratchet section 211 and a wrench head section 212 arranged coaxially. A connector 7 is protruded from the side of the ratchet section 211. A limiting hole 71 is arranged on the side wall of the connector 7. An elastic clamping assembly is arranged in the limiting hole 71. The elastic clamping assembly includes a spring 8 and a clamping ball 9. The elastic clamping assembly includes a spring 8 and a clamping ball 9. One end of the spring 8 is fixed on the inner wall of the limiting hole 71, and the other end is connected to the locking ball 9. The end of the sleeve member 3 is provided with a mounting groove 31, and the mounting groove 31 is adapted to the connector 7. The sleeve member 3 is provided with a locking ball groove 311 adapted to the locking ball 9 on the inner wall of the mounting groove 31. The connector 7 is arranged in a tetrahedron, and the four sides of the connector 7 are chamfered. The mounting groove 31 is expanded outward at the four corners and has arc grooves 312. In this embodiment, the mounting portion 21, the handle portion 22 and the handle rod 23 are integrated, the handle portion 22 is arranged in a shuttle shape, and the handle portion is covered with a rubber layer for easy grasping and buffering. The connector 7 is arranged in a square.

[0017] The working process of the utility model is as follows: after the smooth aluminum sheath cable is disconnected and the outer sheath is stripped off, first use a utility knife to cut the aluminum sheath of the outer sheath fracture (scratches are acceptable), and then cut from the smooth aluminum sheath fracture to the outer sheath fracture, with two cuts, and the width between the cuts needs to be less than the length of the fixing bolt 4. The smooth aluminum sheath at the cable fracture needs to be cut off, and the remaining part can be scratched. The disconnected aluminum sheath is inserted through the gap between the fixing bolt 4 and the sleeve member 3 and bent and fixed on the fixing bolt 4, the connector 7 on the ratchet wrench 2 is inserted into the installation groove 31, the positioning ball 9 is positioned in the positioning ball groove, the ratchet wrench 2 is connected to the end of the sleeve member 3, and the ratchet wrench is rotated at a uniform speed in the direction of the knife mark until the cut aluminum sheath is removed. The utility model has simple workpieces, is light and flexible, is easy to carry, and can improve the installation efficiency of cable accessories.

[0018] Finally, it should be emphasized that the above is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A smooth aluminum sheath ring stripping tool, characterized by: The invention comprises an aluminum sheath fixing sleeve (1) and a ratchet wrench (2) for disassembly arranged at the end of the aluminum sheath fixing sleeve (1), wherein the axis of the ratchet wrench (2) is perpendicular to the axis of the aluminum sheath fixing sleeve (1), and the aluminum sheath fixing sleeve (1) comprises a sleeve member (3), a fixing bolt (4) arranged on the outside of the sleeve member (3), and at least two groups of limiting nuts (5), wherein the two groups of limiting nuts (5) are axially fixed on the outer circumference of the sleeve member (3), the rod part of the fixing bolt (4) is sequentially penetrated by two limiting nuts (5) and connected with a fixing nut (6), and the fixing nut (6) is arranged on the outside of any limiting nut (5), and a set gap exists between the fixing bolt (4) and the outer wall of the sleeve member (3).

2. A smooth aluminum sheath ring stripping tool according to claim 1, characterized in that: The ratchet wrench (2) comprises a mounting portion (21), a handle portion (22) and a handle rod (23) arranged between the mounting portion (21) and the handle portion (22); the mounting portion (21) comprises a ratchet section (211) and a wrench head section (212) arranged coaxially; a connector (7) is protruding from the side of the ratchet section (211); a limiting hole (71) is arranged on the side wall of the connector (7); and an elastic clamping assembly is arranged in the limiting hole (71).

3. A smooth aluminum sheath ring stripping tool according to claim 2, characterized in that: The elastic clamping assembly comprises a spring (8) and a locking ball (9); one end of the spring (8) is fixed on the inner wall of the limiting hole (71), and the other end is connected to the locking ball (9).

4. A smooth aluminum sheath ring stripping tool according to claim 3, characterized in that: The end of the sleeve member (3) is provided with a mounting groove (31), the mounting groove (31) is adapted to the connector (7), and the sleeve member (3) is provided with a locking ball groove (311) adapted to the locking ball (9) on the inner wall of the mounting groove (31).

5. A smooth aluminum sheath ring stripping tool according to claim 4, characterized in that: The connector (7) is arranged in a tetrahedron, and chamfers are arranged on the four sides of the connector (7). The mounting groove (31) is arranged with arc grooves (312) at the four corners in an outwardly expanding manner.

Images