CN112792879B

CN112792879B - PVC cutter and method

Info

Publication number: CN112792879B
Application number: CN202011569785.6A
Authority: CN
Inventors: 张长权; 刘芳婷; 骆炎星; 乐见协
Original assignee: Hubei Jiuqu Pipeline Co ltd
Current assignee: Hubei Jiuqu Pipeline Co ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2022-11-18
Anticipated expiration: 2039-06-25
Also published as: CN112792879A; CN110421615B; CN110421615A

Abstract

The invention discloses a PVC cutter and a method, the structure of the PVC cutter comprises a base, supporting legs, a placing pipeline, fixing devices and a cutting mechanism, wherein the top of the base is vertically welded with the bottom end of the placing pipeline through the supporting legs, the left end and the right end of the placing pipeline are respectively provided with one fixing device, and the cutting mechanism is matched with the right port of the placing pipeline, so that the PVC cutter has the advantages that: according to the pipe cutting device, four cutting knives with the same structure are equidistantly arranged on the plate body, the rotary deflector rod rotates clockwise, the uniformly distributed cutting knives simultaneously cut a pipe, the cut pipe openings are not inclined, the ports are flush, and grinding treatment is not needed.

Description

PVC cutter and method

The invention relates to a divisional application of a PVC pipeline rotary cutter, which is applied for 6, 25 and 2019, and has the application number of CN 201910554014.0.

Technical Field

The invention discloses a PVC cutter and a method, belonging to the technical field of PVC pipeline devices.

Background

At present, in the installation process of a PVC pipeline, the cutting of the pipeline with the diameter of more than 20mm is generally sawed off by a steel saw, the cutting of the PVC pipe by the steel saw leads to the dislocation and the irregularity of the pipe orifice, and the irregular pipe orifice directly leads to the consequences of irregular socket insertion, insecure connection, poor sealing performance and the like because the PVC pipeline is connected by adopting the modes of socket insertion, sealant sealing and the like.

The prior art discloses the application numbers as follows:

the PVC pipe is very extensive in the life use, carries out the installation to the drain pipe in-process, according to the difference of using the place, cuts into the length that becomes different sizes to the PVC pipe and satisfies the on-the-spot demand, has following not enough in the cutting process:

at present, all adopt the saw bit to cut PVC pipe, this kind of mode often causes the cutting mouth of pipe not parallel and level, and when the manual work cuts, the dynamics is different, can make the face of cutting become the bevel connection form, need grind the flat processing to the butt joint mouth of pipe, waste time and energy.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a PVC cutter and a method to solve the problems.

In order to realize the purpose, the invention is realized by the following technical scheme: a rotary pipeline cutter structurally comprises a base, supporting legs, a placing pipeline, fixing devices and a cutting mechanism, wherein the top of the base is vertically welded with the bottom end of the placing pipeline through the supporting legs;

cutting mechanism comprises rotation driving lever, disk body, cutting knife, cutter holder, four rotation driving lever are installed to the even equidistance all around of disk body, fixed mounting has four cutter holder, every on the outside of disk body cutter holder in all be equipped with a cutting knife.

Preferably, the tray body comprises a rotary outer ring, pawls, a rotary inner ring and ratchet wheels, the rotary outer ring is matched with the rotary inner ring, the rotary inner ring and the ratchet wheels are arranged in a staggered and separated mode, the rotary inner ring is located at the rear end of the ratchet wheels, the ratchet wheels are installed at the outlet of the placing pipeline and are nested with the placing pipeline, the rotary outer ring and the ratchet wheels are distributed oppositely, and four pawls are uniformly arranged on the rotary outer ring at equal intervals.

Preferably, the cutter fixer is composed of a shell, a cutter accommodating groove, clamping grooves and fixing through holes, the four fixing through holes are formed in the front face of the shell, the cutter accommodating groove is formed in the middle of the top of the shell, and the clamping grooves are formed in the left side and the right side of the top of the cutter accommodating groove.

Preferably, the inner wall of each fixing through hole is provided with an internal thread which is movably connected with an external fixing bolt, and the four fixing through holes are communicated with the cutter accommodating groove.

Preferably, a T-shaped snap ring is arranged at the top end of the cutting knife and buckled with the snap groove.

Preferably, fixing device comprises screw rod, last clamping piece, lower fixed ring and connecting block, screw rod one end is equipped with T type swing arm, and the other end is connected with the top of last clamping piece, lower fixed ring passes through the connecting block and installs on the inner wall of placing the pipeline.

Preferably, the upper clamping piece and the lower fixing ring are of arc structures, rubber cushions are arranged on the inner rings, and the surfaces of pipelines are prevented from being scratched when the pipeline clamping device is clamped.

Advantageous effects

The PVC cutter and the method have the following beneficial effects:

according to the pipe cutting device, four cutting knives with the same structure are equidistantly mounted on the disc body, the rotary deflector rod is rotated clockwise, the uniformly distributed cutting knives simultaneously cut a pipe, the cut pipe openings are not inclined, the ports are flush, and grinding treatment is not needed;

the four fixing through holes are formed in the shell, so that the distance between the cutting knife and a pipeline can be adjusted according to the pipe diameter;

the pawl on the rotating outer ring prevents the cutter back from contacting the pipeline when the rotating outer ring rotates anticlockwise, the cutter is protected and can only rotate clockwise, and the pipeline is cut by the cutting edge on the cutter.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic front view of a PVC cutter and method of the present invention;

FIG. 2 is a right side view of a cutting mechanism according to the present invention;

FIG. 3 is a schematic view of the internal structure of a disc body according to the present invention;

FIG. 4 is a schematic perspective view of a tool holder according to the present invention;

fig. 5 is a schematic structural diagram of the interior of a fixing device according to the present invention.

In the figure: the cutting device comprises a base-1, supporting legs-2, a placing pipeline-3, a fixing device-4, a cutting mechanism-5, a rotary deflector rod-6, a disc body-7, a cutting knife-8, a cutter fixer-9, a rotary outer ring-a 1, a pawl-a 2, a rotary inner ring-a 3, a ratchet-a 4, a shell-b 1, a cutter accommodating groove-b 2, a clamping groove-b 3, a fixing through hole-b 4, a screw-c 1, an upper clamping piece-c 2, a lower fixing ring-c 3 and a connecting block-c 4.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1-5, the present invention provides a PVC cutter and a method thereof, comprising:

as shown in fig. 1 and 2, the structure of the pipeline cutting device comprises a base 1, supporting legs 2, a placing pipeline 3, fixing devices 4 and a cutting mechanism 5, wherein the top of the base 1 is vertically welded with the bottom end of the placing pipeline 3 through the supporting legs 2, the left end and the right end of the placing pipeline 3 are respectively provided with one fixing device 4, and the cutting mechanism 5 is matched with the right port of the placing pipeline 3;

wherein, cutting mechanism 5 comprises rotatory driving lever 6, disk body 7, cutting knife 8, cutter fixer 9, disk body 7 is gone up even equidistance all around and is installed four rotatory driving lever 6, fixed mounting has four cutter fixer 9 on the outside of disk body 7, every cutter fixer 9 in all be equipped with a cutting knife 8, the PVC pipe is put in placing pipeline 3, fixing device 4 is fixed around it, rotatory driving lever 6 drives four cutting knife 8 that the structure is the same on the disk body 7 and cuts it.

As shown in fig. 3, the disc body 7 is composed of a rotating outer ring a1, pawls a2, a rotating inner ring a3 and a ratchet wheel a4, the rotating outer ring a1 is matched with the rotating inner ring a3, the rotating inner ring a3 and the ratchet wheel a4 are arranged in a staggered and separated manner, the rotating inner ring a3 is located at the rear end of the ratchet wheel a4, the ratchet wheel a4 is installed at an outlet of the placing pipeline 3 and is nested with the placing pipeline 3, the rotating outer ring a1 and the ratchet wheel a4 are distributed relatively, four pawls a2 are uniformly and equidistantly arranged on the rotating outer ring a1, the pawls a2 on the rotating outer ring a1 prevent a knife back from contacting the pipeline when the rotating outer ring a1 rotates anticlockwise, only clockwise rotation can be performed, and a cutting edge on the cutting knife 8 cuts the pipeline.

As shown in fig. 4, the cutter holder 9 is composed of a housing b1, a cutter accommodating groove b2, a clamping groove b3 and a fixing through hole b4, four fixing through holes b4 are formed in the front face of the housing b1, the cutter accommodating groove b2 is formed in the middle of the top of the housing b1, clamping grooves b3 are formed in the left side and the right side of the top of the cutter accommodating groove b2, and the clamping grooves b3 are used for clamping a T-shaped clamping ring on the cutting knife 8.

The inner wall of each fixing through hole b4 is provided with an internal thread which is movably connected with an external fixing bolt, the four fixing through holes b4 are communicated with the cutter accommodating grooves b2, pipelines with different sizes can be matched with the fixing through holes b4 through adjusting the positions of the cutting knives 8 on the cutter accommodating grooves b2, and then the fixing through holes b4 are fixed through bolts.

Wherein, the top of cutting knife 8 is equipped with the snap ring of T type, with draw-in groove b3 looks lock.

As shown in fig. 5, the fixing device 4 is composed of a screw rod c1, an upper clamping piece c2, a lower fixing ring c3 and a connecting block c4, one end of the screw rod c1 is provided with a T-shaped rotating rod, the other end of the screw rod c1 is connected with the top end of the upper clamping piece c2, the lower fixing ring c3 is installed on the inner wall of the pipeline 3 through the connecting block c4, the upper clamping piece c2 and the lower fixing ring c3 can fix the pipeline, and shaking caused in the cutting process is prevented.

The working principle is as follows:

pass the PVC pipeline and place on the pipeline 3, screw rod c1 downwardly rotating makes last clamping piece c2 cooperate with lower fixed ring c3, clip the PVC pipeline, cutting knife 8 is placed in cutter holding tank b2, transfer to suitable position, cooperate with fixing bolt and fixed through hole b4 and fix cutting knife 8, stir the rotatory driving lever 6 clockwise turning on the disk body 7, stir four evenly distributed's cutting knife 8 on the disk body 7 and cut the pipeline simultaneously, because four positions that cutting knife 8 installed are the same, the slope phenomenon can not appear in the mouth of pipe that the cutting was come out, and the port parallel and level, need not grind flat processing, the back of a knife blade contacts the pipeline when pawl a2 on the rotatory outer ring a1 prevents that rotatory outer ring a1 from carrying out anticlockwise rotation, the protection cutter, only can carry out clockwise turning, blade on the cutting knife 8 cuts the pipeline.

The foregoing merely illustrates the principles and preferred embodiments of the invention and many variations and modifications may be made by those skilled in the art in light of the foregoing disclosure, which are intended to be within the scope of the invention.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a PVC pipeline rotary cutter which characterized in that: the structure of the pipeline cutting machine comprises a base (1), supporting legs (2), a placing pipeline (3), a fixing device (4) and a cutting mechanism (5), wherein the top of the base (1) is vertically welded with the bottom end of the placing pipeline (3) through the supporting legs (2), the left end and the right end of the placing pipeline (3) are respectively provided with the fixing device (4), and the cutting mechanism (5) is matched with the right end opening of the placing pipeline (3);

the cutting mechanism (5) consists of rotating shift rods (6), a disc body (7), cutting knives (8) and cutter holders (9), four rotating shift rods (6) are uniformly and equidistantly arranged on the periphery of the disc body (7), four cutter holders (9) are fixedly arranged on the outer surface of the disc body (7), and each cutter holder (9) is internally provided with one cutting knife (8);

the tray body (7) is composed of a rotary outer ring (a 1), pawls (a 2), a rotary inner ring (a 3) and ratchet wheels (a 4), the rotary outer ring (a 1) is matched with the rotary inner ring (a 3), the rotary inner ring (a 3) and the ratchet wheels (a 4) are arranged in a staggered and separated mode, the rotary inner ring (a 3) is located at the rear end of the ratchet wheels (a 4), the ratchet wheels (a 4) are installed at the outlet of the placing pipeline (3) and are nested with the placing pipeline (3), the rotary outer ring (a 1) and the ratchet wheels (a 4) are distributed oppositely, and the rotary outer ring (a 1) is uniformly provided with the four pawls (a 2) at equal intervals;

the cutter fixer (9) comprises a shell (b 1), cutter accommodating grooves (b 2), clamping grooves (b 3) and fixing through holes (b 4), wherein four fixing through holes (b 4) are formed in the front face of the shell (b 1), the cutter accommodating grooves (b 2) are formed in the middle of the top of the shell (b 1), the clamping grooves (b 3) are formed in the left side and the right side of the top of the cutter accommodating grooves (b 2), internal threads are formed in the inner wall of each fixing through hole (b 4) and movably connected with an external fixing bolt, the four fixing through holes (b 4) are communicated with the cutter accommodating grooves (b 2), pipelines with different sizes can be fixed by adjusting the position of a cutting knife (8) on the cutter accommodating grooves (b 2) and then matched with the fixing through holes (b 4) through bolts, the cutting knife is fixed, and a T-shaped clamping ring is arranged at the top end of the cutting knife (8) and is buckled with the clamping grooves (b 3);

the fixing device (4) consists of a screw (c 1), an upper clamping piece (c 2), a lower fixing ring (c 3) and a connecting block (c 4), one end of the screw (c 1) is provided with a T-shaped rotating rod, the other end of the screw is connected with the top end of the upper clamping piece (c 2), and the lower fixing ring (c 3) is installed on the inner wall of the placing pipeline (3) through the connecting block (c 4);

the PVC pipeline penetrates through the placing pipeline (3), the screw (c 1) rotates downwards to enable the upper clamping piece (c 2) to be matched with the lower fixing ring (c 3) to clamp the PVC pipeline, and the cutting knife (8) is placed in the cutter containing groove (b 2) and adjusted to a proper position; fixing the cutting knives (8) by matching the fixing bolts with the fixing through holes (b 4), shifting the rotary shifting rod (6) on the disc body (7) to rotate clockwise, and shifting four evenly distributed cutting knives (8) on the disc body (7) to cut the pipeline simultaneously; because the position of four cutting knife (8) installations is the same, the slope phenomenon can not appear in the mouth of pipe that the cutting was come out, and the port parallel and level, need not grind the flat processing, and the back of a knife blade contacts the pipeline when pawl (a 2) on rotatory outer ring (a 1) prevent that rotatory outer ring (a 1) from carrying out anticlockwise rotation, and the protection cutter can only carry out clockwise rotation, and the blade on cutting knife (8) cuts the pipeline.