CN2282952Y

CN2282952Y - Automatic feed hand pipe cutter

Info

Publication number: CN2282952Y
Application number: CN 96219301
Authority: CN
Inventors: 党建真
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-09-19
Filing date: 1996-09-19
Publication date: 1998-06-03
Anticipated expiration: 2006-09-19

Abstract

The utility model relates to a manual pipe cutter which solves the problem of automatic feed. The automatic feed manual pipe cutter provided by the utility model comprises a screw rod with a handle, a cutter head with a cutter bar, and a cutter bracket. The screw rod is penetrated into a screw nut on one end of the cutter bar to form a transmission pair. The utility model is characterized in that the cutter head is provided with a bevel gear, the front part of the handle on the screw rod is provided with a gear, and a transmission shaft is arranged between the gear and the bevel gear. One end of the transmission shaft is provided with another gear which is engaged with the gear of the screw rod, and the other end of the transmission shaft is provided with another bevel gear with is engaged with the bevel gear of the cutter head. The utility model is used for cutting pipes.

Description

The manual pipe cutter of autofeed

The utility model relates to pipe cutter, refer in particular to a kind of manually and pipe cutter that can autofeed.

Existing manual pipe cutter utilizes desk blade cutting metal pipe, hand is pulled pipe cutter and is turned round around pipe during Pipe Cutting, rotate cutter leading screw handle simultaneously by hand, cutter is travelled forward under the leading screw effect, with cutterhead ascending pipe outer wall, and on the pipe outer wall, roll, up to finishing cutting, its primary structure is as shown in Figure 1: it is made up of the cutterhead 4 of the leading screw 2 of band handle 1, band knife bar 3 and cutter holder 5 that above-mentioned parts are installed, and workpiece promptly is installed between cutterhead 4 and the work support 6.Screw mandrel 2 penetrates the interior screw of knife bar 3 one ends as a transmission, and the advantage of this pipe cutter is simple, practical, and shortcoming is depth of cut control by rule of thumb entirely, and operation is inconvenient, feed is interrupted, especially coloured, thin metallic tubd is easily caused flattening deformation.

The purpose of this utility model provides a kind of manual pipe cutter that enters automatically.

The purpose of this utility model is achieved in that the manual pipe cutter of autofeed, and it comprises the leading screw of being with handle, the cutterhead and the cutter holder of band knife bar, and screw mandrel penetrates the interior screw of knife bar one end as transmission, it is characterized in that: establish a bevel gear on cutterhead; Establish a gear in the handle front portion on the leading screw and between gear and bevel gear, establish a power transmission shaft; This power transmission shaft one end is established the gear that is meshed with gear, and end is established the bevel gear that is meshed with bevel gear in addition.

Above-mentioned design, when turning round pipe cutter on the pipe outer wall that cutterhead is pressed in workpiece with handle, cutterhead will inevitably be done rolling on the pipe outer wall, be equivalent to a planet gear, so when the pipe cutter revolution while, cutterhead is also rotating, if cutterhead equates with the workpiece external diameter, then pipe cutter returns and circles, cutterhead also rotates a week relative to cutter holder, and the rotation of cutterhead is that the tangential force by the tube wall of workpiece causes, in view of the above, by the design power is delivered on the leading screw, states the effect that enters automatically.

Below by drawings and Examples the utility model is described further again.

Fig. 1 is existing manual pipe cutter structural representation;

Fig. 2 is the utility model pipe cutter structural representation;

As shown in Figure 2: the utility model comprises the leading screw 2 of being with handle 1, the cutterhead 4 and the cutter holder 5 of band knife bar 3, and the formation of the screw in leading screw 2 and knife bar 3 one ends is in transmission connection; Cutterhead 4 is provided with bevel gear 7; Leading screw 2 is provided with gear 8; Be provided with power transmission shaft 9 between gear 8 and the bevel gear 7, the gear 10 of power transmission shaft 9 one ends for being meshed, the bevel gear 11 of end in addition for being meshed with bevel gear 7 with gear 8.This bevel gear transmission also can replace in the worm gear transmission, and effect is basic identical.That bevel gear on the cutterhead can be made of one or welding or be spirally connected or rivet the formation one.Its depth of cut can be selected decision by transmission mechanism.Through test, when manual pipe cutter when workpiece turns round, feed has prevented that manual feed speed from differing, the interrupted and disadvantage of flattening workpiece freely.

Claims

1, the manual pipe cutter of autofeed, it comprises the leading screw of being with handle, the cutterhead and the cutter holder of band knife bar, screw mandrel penetrates the interior screw of knife bar one end as transmission, it is characterized in that: establish a bevel gear on cutterhead; Establish a gear in the handle front portion on the leading screw and between gear and bevel gear, establish a power transmission shaft; This power transmission shaft one end is established the gear that is meshed with gear, and end is established the bevel gear that is meshed with bevel gear in addition.

2, the manual pipe cutter of autofeed as claimed in claim 1 is characterized in that: bevel gear on the cutterhead and cutterhead be one or welding, rivet or be spirally connected.