CN211276729U

CN211276729U - Metal pipe cutter

Info

Publication number: CN211276729U
Application number: CN201921793044.9U
Authority: CN
Inventors: 罗将锰
Original assignee: Ningbo Jf Giant Tools Industrial Co ltd
Current assignee: Ningbo Jf Giant Tools Industrial Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-08-18
Anticipated expiration: 2029-10-23

Abstract

The utility model provides a metal pipe cutting knife, this cutting knife includes: the mounting seat is provided with a first end and a second end which are opposite, the first end is fixedly provided with a pivoting seat, and the other end of the first end is fixedly provided with a nut seat; the circular cutter is used for cutting the metal pipe and is pivoted on the pivoting seat; the supporting piece comprises a roller frame, a first roller and a second roller, wherein the first roller and the second roller are arranged on the roller frame and are distributed up and down in the axial direction; the driving piece, the driving piece includes lead screw, operation knob and propelling movement frame, the lead screw passes behind the nut seat and connects propelling movement frame and its other end connection operation knob towards the one end of circular cutter, gyro wheel frame sliding connection is on this propelling movement frame, propelling movement frame sliding connection is on the mount pad, and the lead screw drive promotes the frame and removes, and then adjusts the size in centre gripping chamber with the centre gripping tubular metal resonator.

Description

Metal pipe cutter

Technical Field

The utility model belongs to the cutting knife field, concretely relates to metal pipe cutting knife.

Background

The metal pipe cutter is a manual cutter for cutting various metal pipes, when the existing metal pipe cutter is used for cutting the metal pipe, the pipe is placed between an idler wheel and a blade, a knob screw rod is rotated by hand to drive an idler wheel frame and a cutter to clamp the metal pipe, then the cutter is rotated around the pipe until the pipe is cut off, however, in the using process, the cutter can cause the idler wheel frame to move backwards after being rotated, so that unstable clamping of the pipe is caused, the pipe is difficult to cut off, the cutter cannot be fed in during rotation, and therefore, in the using process, the idler wheel frame needs to be tightened once when the cutter is operated in each rotation, the operation is complex, and the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

To solve the technical problem, the utility model provides a metal pipe cutting knife, this cutting knife includes:

the mounting seat is provided with a first end and a second end which are opposite, the first end is fixedly provided with a pivoting seat, and the other end of the first end is fixedly provided with a nut seat;

the circular cutter is used for cutting the metal pipe and is pivoted on the pivoting seat;

the supporting piece comprises a roller frame, a first roller and a second roller, wherein the first roller and the second roller are arranged on the roller frame and are distributed up and down in the axial direction;

the driving piece comprises a screw rod, an operation knob and a pushing frame, the screw rod penetrates through the nut seat and then is connected with the pushing frame towards one end of the circular cutter, the other end of the screw rod is connected with the operation knob, the roller frame is connected onto the pushing frame in a sliding mode, the pushing frame is connected onto the mounting seat in a sliding mode, the screw rod drives the pushing frame to move, and then the size of the clamping cavity is adjusted to clamp the metal pipe;

the elastic resetting piece is arranged between the pushing frame and the roller frame and is used for providing resetting power to the roller frame.

Preferably, the pushing frame is provided with a sliding groove, the sliding groove is provided with limiting walls positioned at two ends, the bottom of the roller frame is provided with a protrusion, the protrusion is in sliding fit with the inside of the sliding groove, and the limiting walls limit the stroke displacement of the protrusion.

Preferably, the pushing frame is provided with an installation groove, so that one end of the screw rod is clamped in the installation groove.

Preferably, the elastic reset piece is a spring, a pressing part is formed at one end, facing the roller frame, of the pushing frame, a limiting column is arranged on the roller frame, the spring is sleeved on the limiting column, and a free section of the spring is pressed against the pressing part.

Preferably, the mounting seat forms a concave horizontal rail between the pivoting seat and the nut seat, and the pushing frame is connected to the horizontal rail in a sliding manner.

Preferably, an upper abutting portion and a lower abutting portion which are vertically arranged are formed on one side, facing the roller frame, of the pushing frame, a first limiting column and a second limiting column are arranged on the roller frame in a direction departing from the first roller and the second roller, the elastic reset piece comprises a spring A sleeved on the first limiting column and a spring B sleeved on the second limiting column, and free ends of the spring A and the spring B abut against the upper abutting portion and the lower abutting portion respectively.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a metal cutting knife when cutting the metal pipe, only need can accomplish the cutting metal pipe at the initial adjustment gyro wheel frame, because the gyro wheel frame, bulldoze the setting of the mounting structure and the elasticity piece that resets of frame, can realize the automatically regulated function, easy operation is convenient at gyro wheel frame when rotatory cutting knife.

Drawings

Fig. 1 is a schematic structural diagram 1 of a metal pipe cutter according to the present invention;

FIG. 2 is a rear view of the metal tube cutter of the present invention;

fig. 3 is a schematic view of the using state of the metal pipe cutter of the present invention.

Detailed Description

The technical solution of the present invention or utility model will be further specifically described below by means of specific embodiments and with reference to the drawings of the specification;

in the description of the present invention, it should be understood that the terms inner, outer, upper, lower, etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "mounted" and "connected" should be interpreted broadly, for example, as mechanical or electrical connections, as well as communications between two elements, either directly or indirectly through intermediary media, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.

An embodiment of the utility model provides a metal pipe cutting knife, as shown in fig. 1, this cutting knife includes that mount pad, circular cutter, support frame, driving piece and elasticity reset, specifically, mount pad, circular cutter, support frame, driving piece and elasticity reset as follows setting up:

the mounting base 1 is provided with a first end and a second end which are opposite, the first end is fixedly provided with a pivot base 11, and the other end is fixedly provided with a nut base 12;

the circular cutter 2 is used for cutting the metal pipe 5, and is pivoted on the pivoting seat 11;

the support member 3 comprises a roller frame 31, and a first roller 32 and a second roller 33 which are arranged on the roller frame 31 and distributed up and down in the axial direction, wherein the first roller 32 and the second roller 33 are matched with the circular cutter 2 to form a clamping cavity 34 for supporting the metal pipe 5;

the driving piece comprises a screw rod 6, an operation knob 7 and a pushing frame 8, the screw rod 6 penetrates through the nut seat 12 and then is connected with the pushing frame 8 towards one end of the circular cutter, the other end of the screw rod is connected with the operation knob 7, the roller frame 31 is connected onto the pushing frame 8 in a sliding mode, the pushing frame 8 is connected onto the mounting seat 1 in a sliding mode, the screw rod 6 drives the pushing frame 8 to move, and then the size of the clamping cavity 34 is adjusted to clamp the metal pipe 5;

the elastic resetting piece 9 is arranged between the pushing frame 8 and the roller frame 31, and the elastic resetting piece 9 is used for providing resetting power to the roller frame 31;

the metal pipe cutter provided by the utility model only needs to adjust the knob once when cutting the pipe, solves the technical problem that the existing cutter needs to repeatedly screw the roller carrier for many times, is convenient to operate and saves time; and the whole structure is simple and the cost is low.

Optionally, the pushing frame 8 is provided with a sliding groove 81, the sliding groove 81 is provided with limiting

walls

811 and 812 at two ends, the bottom of the roller frame 31 is provided with a protrusion 311, the protrusion 311 is in sliding fit in the sliding groove 81, and the

limiting walls

811 and 812 limit the stroke displacement of the protrusion; so, through the elastic reset force of the elastic reset piece, the sliding fit of the protrusion and the sliding groove is promoted, and then the function of automatically adjusting the position of the roller frame is realized, and the whole structural design is simple and ingenious.

Optionally, an installation groove 82 is formed in the pushing frame 8, so that one end of the screw rod 6 is clamped therein; so lead screw and pushing away frame fixed connection, the removal of lead screw drives the displacement of pushing away the frame.

Specifically, the elastic reset piece 9 is a spring, a pressing part is formed at one end of the pushing frame 8 facing the roller frame, a limiting column is arranged on the roller frame, the spring is sleeved on the limiting column, and a free section of the spring is pressed against the pressing part, so that the spring is stably arranged between the pushing frame and the roller frame; in this embodiment, referring to fig. 2, an upper pressing portion 83 and a lower pressing portion 84 are formed on one side of the pushing frame 8 facing the roller frame 31, the roller frame 31 is provided with a first limiting column 35 and a second limiting column 36 in a direction away from the first roller 32 and the second roller 33, the elastic restoring member includes a spring a 91 sleeved on the first limiting column 35 and a spring B92 sleeved on the second limiting column 36, and free ends of the spring a 91 and the spring B92 respectively press against the upper pressing portion 83 and the lower pressing portion 84.

In addition, as shown in fig. 3, the mounting base 1 forms a recessed horizontal rail 13 between the pivot base 11 and the nut base 12, and the pushing frame is slidably connected to the horizontal rail 13.

Exemplarily, the utility model provides a metal pipe cutting knife operation process schematic diagram as above: as shown in fig. 3, when cutting a metal pipe, the pipe is placed between the roller and the blade, the operator rotates the knob roller frame spring to automatically extrude backwards, and then the metal pipe cutter provided by the embodiment rotates around the pipe until the pipe is cut off to realize the automatic feed function; it is stable and convenient.

In the description herein, references to the description of the terms "some embodiments," "examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A metal pipe cutter, characterized in that the cutter comprises:

2. The metal pipe cutter according to claim 1, wherein the pushing frame is provided with a sliding groove having a stopper wall at both ends, and the roller frame is provided at a bottom thereof with a projection slidably fitted inside the sliding groove, the stopper wall limiting a stroke displacement of the projection.

3. The metal pipe cutter according to claim 1, wherein the pushing frame is provided with a mounting groove so that one end of the screw rod is caught therein.

4. The metal pipe cutting knife according to claim 1, wherein the elastic return element is a spring, a pressing portion is formed at one end of the pushing frame facing the roller frame, a limiting post is arranged on the roller frame, the spring is sleeved on the limiting post, and a free section of the spring presses against the pressing portion.

5. The metal pipe cutter according to claim 1, wherein the mounting seat forms a recessed horizontal rail between the pivot seat and the nut seat, and the pushing frame is slidably connected to the horizontal rail.

6. The metal pipe cutting knife according to claim 1, wherein the pushing frame has an upper pressing portion and a lower pressing portion arranged up and down on a side facing the roller frame, the roller frame is provided with a first limiting post and a second limiting post in a direction away from the first roller and the second roller, the elastic return element includes a spring a sleeved on the first limiting post and a spring B sleeved on the second limiting post, and free ends of the spring a and the spring B respectively press against the upper pressing portion and the lower pressing portion.