A girdling knife with a lock

Abstract

The utility model discloses a kind of ring cutting knives with lock catch, including handle and limiting mechanism;The one end of the handle has riveting cutter head seat, and cutter head seat one end is rotatably connected with cutter head by fixed part, and the side of cutter head seat is integrally formed with arc part;The utility model is cooperated by torsion spring, lock post and lock catch locking position in limiting mechanism, after loosening lock catch push button, torsion spring can drive lock post accurate insertion into corresponding lock catch locking position, quickly complete cutter head locking, without complex disassembly or tool auxiliary, shorten angle adjustment time, improve overall operation efficiency;Cutter head and cutter head seat are connected by screw, nut B and other fixed parts, connecting piece is fixed on cutter head by locating peg, and the connecting mode of each component is simple and reliable, easy to disassemble and install, reduce maintenance cost;Through the through slot of arc part and screw cooperation, the rotation range of cutter head is limited, screw slides along through slot, prevent cutter head excessive rotation from causing component collision damage.

Claims

1. A ring cutter with a locking mechanism, characterized in that, include: Handle (1), one end of the handle (1) is riveted to a cutter head seat (3), and one end of the cutter head seat (3) is rotatably connected to a cutter head (12) through a fixing member. An arc-shaped part (9) is integrally formed on one side of the cutter head seat (3). The limiting mechanism is located inside the cutter head seat (3) and is used to lock the rotated cutter head (12). The limiting mechanism includes a locking push button (4) that slides on the surface of the cutter head seat (3). The surface of the locking push button (4) is provided with a screw A (5). The surface of the cutter head seat (3) is provided with a locking groove (18). One end of the screw A (5) passes through the push button (4) and the locking groove (18) and is connected to a nut A. A torsion spring (19) is connected between the cutter head seat (3) and the locking push button (4). By pushing the locking push button (4) to slide on the surface of the cutter head seat (3) and compressing the torsion spring (19), the screw A (5) is released from the lock on the cutter head (12) and its position is adjusted. After the screw A (5) is released, the torsion spring (19) resets and drives the screw A (5) to be inserted into the cutter head (12) to complete the locking.

2. A ring cutter with a locking mechanism according to claim 1, characterized in that, The limiting mechanism also includes a locking post (20) connected to the top of the screw A (5), and a plurality of locking positions (14) are equally spaced on the surface of the cutter disc (12), and the locking post (20) is inserted into the locking position (14).

3. A ring cutter with a locking mechanism according to claim 1, characterized in that, The surface of the arc-shaped part (9) is provided with a through hole (16), and a screw (8) is connected to one side of the arc-shaped part (9). The surface of the cutter head (12) is provided with a through groove (15) for passing through the screw (8). After the screw (8) passes through the through groove (15) and the through hole (16), a nut B (13) is connected to it.

4. A ring cutter with a locking mechanism according to claim 1, characterized in that, The surface of the locking push button (4) is provided with a sliding groove (6), and a screw B (7) is connected to the surface of the locking push button (4). The surface of the cutter head seat (3) is provided with a screw hole (17). The screw B (7) passes through the sliding groove (6) and the screw hole (17) and is connected to a nut C.

5. A ring cutter with a locking mechanism according to claim 1, characterized in that, The outer surface of the cutter head (12) is connected to a connector (10), and a positioning pin (11) is connected between the connector (10) and the cutter head (12).

6. A ring cutter with a locking mechanism according to claim 1, characterized in that, The handle (1) is connected to the cutter head seat (3) by screws (2).

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