A cable corrugated pipe ring cutter

Abstract

This application relates to the field of cutting tools, and provides a cable corrugated pipe circumferential cutter, which includes a frame, a lead screw, and a knob. The lead screw passes through the frame, and the knob is rotatably engaged with the lead screw. The knob has a sleeve fitted outside the lead screw, and a reinforcing rod screwed into the lead screw is provided inside the sleeve. Based on the above structure, the friction area between the knob and the lead screw can be increased by connecting the reinforcing rod with the lead screw, thereby improving the connection strength and reliability of the two.

Description

Technical Field

[0001] This application relates to the field of cutting tool technology, and in particular to a cable corrugated pipe circumferential cutter. Background Technology

[0002] In the operation and maintenance of power cables, it is often necessary to cut the cable corrugated pipes to complete the line connection. Patent CN205967603U discloses a superconducting cable corrugated pipe cutting tool, which uses a knob to drive a blade mounted on a lead screw, thus cutting into the inside of the corrugated pipe. However, the small friction area between the knob and the lead screw results in low mechanical strength and reliability of the connection. Summary of the Invention

[0003] The purpose of this application is to provide a cable corrugated pipe circumferential cutter, which aims to solve the technical problem of low connection strength and reliability between the knob and the lead screw in the prior art.

[0004] To achieve the above objectives, this application adopts the following technical solution: A cable corrugated pipe circumferential cutter includes a frame, a lead screw, and a knob. The lead screw passes through the frame, and the knob is rotatably engaged with the frame. The knob is screwed into the lead screw, and the knob has a sleeve sleeved outside the lead screw. A reinforcing rod is screwed into the lead screw inside the sleeve.

[0005] By adopting the technical solution of this application, the friction area between the knob and the lead screw can be increased by connecting the reinforcing rod with the lead screw, thereby improving the connection strength and reliability of the two.

[0006] Furthermore, the frame is equipped with support rollers that correspond to the blades at the end of the lead screw.

[0007] Furthermore, the support rollers are arranged symmetrically on both sides of the blade.

[0008] Furthermore, the frame is provided with a recessed groove for engaging the knob.

[0009] Furthermore, a portion of the knob's circumference extends out into a relief groove.

[0010] Furthermore, the frame is provided with mounting holes for threading lead screws, and the inner wall of the mounting holes is provided with limiting surfaces, which are arranged below the relief grooves.

[0011] Furthermore, the outer wall of the lead screw is provided with a positioning surface that fits against the limiting surface.

[0012] Furthermore, the sleeve and the lead screw are arranged coaxially.

[0013] Furthermore, the reinforcing rod is arranged coaxially with the lead screw.

[0014] Furthermore, the sleeve is welded to the upper surface of the knob. Attached Figure Description

[0015] Exemplary embodiments of this application will now be described in detail with reference to the accompanying drawings. It should be understood that the embodiments described below are for illustrative purposes only and are not intended to limit the scope of this application. In the accompanying drawings: Figure 1 A schematic diagram of the cable corrugated pipe circumferential cutter provided in this application; Figure 2 A schematic diagram of the sleeve provided in this application after it has been detached from the knob; Figure 3 A cross-sectional view of the sleeve provided in this application; The following are the labeling elements in the figure: 10. Frame; 11. Support rollers; 12. Leaving groove; 13. Mounting holes; 20. Lead screw; 21. Blade; 22. Positioning surface; 30. Knob; 31. Sleeve; 32. Reinforcing rod. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description of this application is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this application and are not intended to limit this application.

[0017] The design concept of the cable corrugated pipe circumferential cutter described in this application is as follows: A cable corrugated pipe circumferential cutter includes a frame 10, a lead screw 20, and a knob 30. The lead screw 20 is mounted on the frame 10, and the knob 20 is rotatably engaged with the frame 10. The knob 30 is screwed into the lead screw 20. The knob 30 has a sleeve 31 that is sleeved on the outside of the lead screw 20, and a reinforcing rod 32 that is screwed into the inside of the lead screw 20 is provided inside the sleeve 31.

[0018] In the above structure, the friction area between the knob 30 and the lead screw 20 can be increased by screwing the reinforcing rod 32 into the lead screw 20, thereby improving the connection strength and reliability of the two.

[0019] Embodiments of the cable corrugated pipe circumferential cutter described in this application: A cable corrugated pipe circumferential cutter includes a frame 10, a lead screw 20, and a knob 30.

[0020] The frame 10 defines a U-shaped operating space that allows the cable corrugated pipe to be moved into and cut within it. Two rotatable rollers 11 are provided on the lower side of the operating space, and a lead screw 20 is provided on the upper side of the operating space. A rotatable cutter 21 is provided at the lower end of the lead screw 20. The cutter 21 is arranged above the two rollers 11, and the cutter 21 and the two rollers 11 are triangularly distributed. For example, the two rollers 11 are symmetrically arranged on both sides of the cutter 21. The three are sandwiched on the outside of the cable corrugated pipe. The cutter 21 cuts into the inside of the corrugated pipe. By rotating the frame 10 around the cable corrugated pipe, the circumferential cutting operation of the cable corrugated pipe can be completed.

[0021] The frame 10 has a clearance groove 12 and a mounting hole 13. The clearance groove 12 is constructed as a rectangular groove that passes through the horizontal bar above the frame 10 in the horizontal direction. The knob 30 is rotatably engaged inside the clearance groove 12. The mounting hole 13 is constructed as a circular hole that passes through the horizontal bar above the frame 10 in the vertical direction. The lead screw 20 is slidably inserted into the mounting hole 13.

[0022] It should be noted that the inner wall of the mounting hole 13 below the relief groove 12 is provided with a limiting surface 1. The limiting surface is constructed as a plane extending in the vertical direction. The outer wall of the lead screw 20 is provided with a positioning surface 22 that fits with the limiting surface. By using the fit between the positioning surface 22 and the limiting surface, the rotation of the lead screw 20 can be restricted, so that the lead screw 20 is only allowed to slide in the vertical direction.

[0023] The lead screw 20 is mounted on the frame 10, and the knob 30 is rotatably engaged with the frame 10. The knob 30 is screwed into the lead screw 20. The knob has a sleeve fitted outside the lead screw, and a reinforcing rod screwed into the lead screw is provided inside the sleeve.

[0024] The knob 30 is entirely fitted onto the outside of the lead screw 20, and the knob 30 and the lead screw 20 are threadedly connected. Part of the circumferential surface of the knob 30 extends out of the relief groove 12 to facilitate hand contact and rotation of the knob 30. A sleeve 31 is welded to the upper end face of the knob 30. The sleeve 31 is entirely fitted onto the outside of the lead screw 20, and the sleeve 31 and the lead screw 20 are coaxially arranged. A reinforcing rod 32 is welded inside the sleeve 31, and the reinforcing rod 32 and the sleeve 31 are coaxially arranged. The reinforcing rod 32 extends axially into the inside of the lead screw 20, and the reinforcing rod 32 and the lead screw 20 are threadedly connected. The reinforcing rod 32 and the lead screw 20 are coaxially arranged.

[0025] The knob 30, sleeve 31, and reinforcing rod 32 form an integrated structure. The knob 30 is screwed onto the outside of the lead screw 20, and the reinforcing rod 32 is screwed onto the inside of the lead screw 20. Compared with the threaded connection formed by a single knob, the friction area with the lead screw is increased, which can effectively improve the connection strength and reliability between the knob and the lead screw.

[0026] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A cable corrugated pipe circumferential cutter, characterized in that, The device includes a frame, a lead screw, and a knob. The lead screw passes through the frame, and the knob is rotatably engaged with the frame. The knob is screwed into the lead screw, and the knob has a sleeve that is fitted onto the outside of the lead screw. The sleeve has a reinforcing rod that is screwed into the inside of the lead screw.

2. The cable corrugated pipe circumferential cutter according to claim 1, characterized in that, The frame is equipped with rollers corresponding to the blades at the end of the lead screw.

3. The cable corrugated pipe circumferential cutter according to claim 2, characterized in that, The rollers are arranged symmetrically on both sides of the blade.

4. The cable corrugated pipe circumferential cutter according to claim 3, characterized in that, The frame is provided with a recessed groove for engaging the knob.

5. The cable corrugated pipe circumferential cutter according to claim 4, characterized in that, A portion of the knob's circumference extends out of the relief groove.

6. The cable corrugated pipe circumferential cutter according to claim 5, characterized in that, The frame is provided with mounting holes for the lead screw to pass through, and the inner wall of the mounting holes is provided with a limiting surface, which is arranged below the relief groove.

7. The cable corrugated pipe circumferential cutter according to claim 6, characterized in that, The outer wall of the lead screw is provided with a positioning surface that fits against the limiting surface.

8. The cable corrugated pipe circumferential cutter according to claim 7, characterized in that, The sleeve is arranged coaxially with the lead screw.

9. The cable corrugated pipe circumferential cutter according to claim 8, characterized in that, The reinforcing rod is arranged coaxially with the lead screw.

10. The cable corrugated pipe circumferential cutter according to claim 9, characterized in that, The sleeve is welded to the upper end face of the knob.

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