CN113714552A

CN113714552A - Manual pipe cutter

Info

Publication number: CN113714552A
Application number: CN202111002851.6A
Authority: CN
Inventors: 俞峰
Original assignee: Zhuji Huihuang Hardware Co ltd
Current assignee: Zhuji Huihuang Hardware Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2021-11-30

Abstract

The invention relates to a manual pipe cutter. The pipe cutter comprises a pipe cutting positioning seat, one end of the pipe cutting positioning seat is provided with a pipe positioning portion which is arc-shaped, the other end of the pipe cutting positioning seat is provided with a positioning handle, a pipe cutter seat which is arranged in a cross mode with the pipe cutting positioning seat is arranged in a cutter seat installation cavity in the pipe cutting positioning seat in a rotating mode, one end of the pipe cutter seat is provided with a pressing handle which corresponds to the positioning handle, the other end of the pipe cutter seat is connected with a pipe cutting cutter, one end of the pipe cutting cutter seat penetrates through the cutter seat installation cavity, the other end of the pipe cutting cutter corresponds to the pipe positioning portion, and a cutting space is formed between the pipe cutting cutter and the pipe positioning portion. The invention has the advantages that: the cutter is convenient to disassemble and assemble and simple to operate.

Description

Manual pipe cutter

Technical Field

The invention relates to the technical field of pipe cutting tools, in particular to a manual pipe cutter.

Background

The pipe cutter is one hand tool for cutting pipe fitting and has one clamping mouth with cutter set in two opposite sides for setting pipe fitting into the clamping mouth and the cutter makes the pipe fitting rotate relatively to the pipe cutter in the clamping mouth to cut pipe fitting. The existing pipe cutter has the advantages of small volume and convenient carrying and use, however, the existing pipe cutter needs to manually operate the pipe cutter to rotate around the pipe fitting, namely, the hand of an operator needs to continuously change the position around the pipe fitting, and a large space is needed to enable the hand to be operated smoothly, so that the pipe cutting process is time-consuming and inconvenient. In addition, the existing pipe cutter has a complex structure, is very inconvenient to replace a cutter, usually needs to be partially disassembled, and is assembled after a blade is installed, so that the pipe cutting efficiency is delayed, and the operation is complex.

In order to solve the defects of the prior art, people have long searched for and put forward various solutions. For example, the chinese patent document discloses a tube cutting tool with a detachable handle [ CN201520252903.9], which comprises a tube cutter, a handle body, a ratchet seat, a one-way ratchet mechanism and a pick, wherein the ratchet seat and the one-way ratchet mechanism are arranged at the end of the handle body, one side of the ratchet seat is formed into a ratchet structure, and the other side is formed into an assembly groove for embedding the tube cutter, so as to achieve the purpose of arranging the one-way ratchet structure on the handle body completely, so that the tube cutter retains the original advantage of small volume, and after being assembled on the ratchet seat and the handle body, the tube cutter is easy to operate by one-way force application. In addition, the pipe cutter is easy to operate and disassemble by the plectrum pivoted with the ratchet seat, and the blocking rib arranged on the ratchet seat enables the plectrum to be pivoted and positioned above the assembly groove completely or completely, so that the unsmooth operation caused by overlarge or insufficient pivoting amplitude is avoided.

The above scheme solves the problems of time consumption and inconvenient operation in pipe cutting of the pipe cutter in the prior art to a certain extent, but the scheme still has many defects, such as: when the cutter is replaced, complex disassembly and assembly are required, time is delayed, pipe cutting efficiency is reduced, and the cutter is inconvenient to disassemble and assemble.

Disclosure of Invention

The invention aims to solve the problems and provides a manual pipe cutter which is reasonable in design and convenient to disassemble and assemble a cutter.

In order to achieve the purpose, the invention adopts the following technical scheme: this manual pipe cutter, including the pipe cutting positioning seat, pipe cutting positioning seat one end has and is curved body location portion, the other end has the location handle, the blade holder installation cavity internal rotation in the pipe cutting positioning seat is equipped with the pipe cutter blade holder that is cross arrangement with the pipe cutting positioning seat, pipe cutter blade holder one end is equipped with the handle of pressing that corresponds the setting with the location handle, the pipe cutter blade holder other end is connected with the pipe cutter that one end wore to locate in the blade holder installation cavity and the other end corresponds the setting with body location portion through quick detach formula coupling mechanism, and form the cutting space between pipe cutter and the body location portion. Install pipe cutter one end on the pipe cutter seat through quick detach formula coupling mechanism to rotate the pipe cutter seat and set up in the blade holder installation cavity of pipe cutting positioning seat, it is more convenient not only to cut the pipe, need not the dismouting when the cutter is changed moreover, and it is more convenient that the cutter is changed.

In the above manual pipe cutter, the quick-release connecting mechanism includes a quick-release ball connecting assembly disposed between the pipe cutter and the pipe cutter holder, and an anti-deflection limiting assembly is disposed between the pipe cutter and the pipe cutter holder and/or the pipe cutter positioning seat. Quick detach marble coupling assembling can fix a position pipe cutter one end, and the spacing subassembly of preventing deflecting can make pipe cutter and pipe cutter seat synchronous rotation.

In the manual pipe cutter, the cutter holder mounting cavity forms an opening at one side of the pipe cutting positioning seat far away from the positioning part of the pipe body, and one side of the cutter holder mounting cavity far away from the opening extends to one side of the pipe cutting positioning seat close to the positioning part of the pipe body and forms a cutter movable groove for a pipe cutting cutter to penetrate.

In the manual pipe cutter, one end of the pipe cutter holder, which is far away from the pressing handle, is provided with a cutter holder installation part movably arranged in the cutter holder installation cavity, the cutter holder installation part is hinged with the pipe cutting positioning seat, and the quick-release connecting mechanism is arranged between the cutter holder installation part and the pipe cutting tool.

In the manual pipe cutter, the deflection-preventing limiting assembly comprises a cutter mounting groove axially formed at one end of a cutter holder mounting part, one end of the pipe cutting cutter is provided with a connecting cutter handle which is integrally formed and is inserted into the cutter mounting groove, the connecting cutter handle is provided with a first connecting strip and a second connecting strip which are arranged in parallel, a cutter handle positioning groove is formed between the first connecting strip and the second connecting strip, the cutter holder mounting part is provided with at least one limiting hole which corresponds to the cutter handle positioning groove and penetrates through the cutter mounting groove, and a limiting column which penetrates through the cutter handle positioning groove is arranged in the limiting hole; the pipe cutting positioning seat is provided with a cutter holder hinge hole penetrating through the cutter holder mounting cavity, the cutter holder mounting part is provided with two limiting holes corresponding to the cutter holder positioning grooves, one limiting hole corresponds to the cutter holder hinge hole, two ends of the limiting column in the limiting hole are respectively penetrated and arranged in the cutter holder hinge hole to form a hinge column, and the end part of the limiting column in the remaining limiting hole does not exceed the outer side of the limiting hole. The connection tool handle can be effectively fixed on the tool mounting portion through the arrangement, synchronous rotation with the tool mounting portion is achieved, and plugging and unplugging can be achieved during dismounting.

In foretell manual pipe cutter, the one end that the pipe cutter kept away from and connects the handle of a knife has the pipe cutter head, and pipe cutter head one side has first pipe cutter portion, and first pipe cutter portion one end extends to the one end that the pipe cutter kept away from and connects the handle of a knife and the other end is connected with the second pipe cutter portion, forms the obtuse angle between first pipe cutter portion and the second pipe cutter portion, and the one side of keeping away from first pipe cutter portion and second pipe cutter portion at the pipe cutter head has the cutter bar hole. The cutter bar hole is convenient for hang and accomodate when the pipe cutting cutter is not used.

In the manual pipe cutter, the quick-release marble connecting assembly comprises a quick-release mounting hole which is arranged on the cutter holder mounting part and penetrates through the cutter mounting groove, the quick-release mounting hole corresponds to the cutter quick-release hole on the first connecting strip or the second connecting strip, a quick-release column respectively penetrates through the quick-release mounting hole and the cutter quick-release hole, two ends of the quick-release column respectively extend to the outer side of the cutter holder mounting part, the outer side of one end, away from the positioning part of the pipe body, of the pipe cutting positioning seat is provided with a abdicating arc part corresponding to the quick-release column, one end of the quick-release column is provided with a limiting part abutted against one side of the cutter holder mounting part, and the other end of the quick-release column is provided with a limiting marble assembly abutted against the other side of the cutter holder mounting part; spacing marble subassembly is including setting up in blade holder installation department one side and inside sunken blade holder depressed groove, and quick detach post one end is worn out by the blade holder depressed groove and quick detach post one end radially is provided with the marble mounting hole, and the activity is equipped with spacing marble in the marble mounting hole, and the spacing marble outside exposes in the marble mounting hole outside and supports the setting with blade holder depressed groove bottom, is equipped with the roof pressure spring that leans on with spacing marble counterbalance in the marble mounting hole. When the pipe cutting tool is detached, the pipe cutting tool can be pulled out only by pushing the limiting marble into the marble mounting hole and pulling out the quick-release column.

In foretell manual pipe cutter, cutter movable slot one end extends to body location portion inboard and forms the arc cutter storage tank corresponding with the pipe cutter head, and arc cutter storage tank inboard has the spacing fender portion of cutter that extends to blade holder installation intracavity, and the blade holder installation department has the one end outside of cutter mounting groove and is equipped with the guide holder that corresponds with cutter movable slot and have the hanging hole, and has the arc spigot surface that corresponds with the guide holder in the blade holder installation cavity. The arrangement of the cutter limiting blocking part can prevent the pipe cutting cutter from cutting over.

In foretell manual pipe cutter, location handle orientation is pressed handle direction slope and integrated into one piece in pipe cutting positioning seat one end, presses handle orientation and fixes a position handle orientation slope and integrated into one piece in pipe cutter seat one end, and presses the handle and be close to the one end of pipe cutter seat and have the handle spacing portion that leans on with the location handle, presses the handle and fixes a position the handle one side that is close to each other and has the cavity respectively, and presses the handle and fixes a position the handle one side of keeping away from each other and have anti-skidding portion. The handle limiting part can limit the rotation of the pipe cutting tool.

In the manual pipe cutter, one end of the pressing handle, which is far away from the pipe cutting tool apron, is rotatably provided with a hand wheel, the hand wheel is connected with a connecting rod body extending towards the positioning handle, and one end of the connecting rod body is provided with a clamping hook body clamped with a handle connecting groove at the end part of the positioning handle.

Compared with the prior art, the invention has the advantages that: reasonable in design, simple structure, not only linkage nature is good, moreover through preventing the spacing subassembly of deflecting can effectively be fixed in the cutter mounting groove with the pipe cutter and realize rotating with the synchronization of blade holder installation department, simultaneously, quick detach marble coupling assembling not only can effective fixed connection handle of a knife, only need push the marble mounting hole with spacing marble and extract the quick detach post and can extract the pipe cutter when dismantling the pipe cutter in addition, the cutter dismouting is more convenient.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic view of the tube cutter base of the present invention in connection with a tube cutter;

FIG. 4 is an exploded view of the present invention;

FIG. 5 is a cut-away view of the present invention;

FIG. 6 is a detailed view of the pipe cutter seat of the present invention;

FIG. 7 is a schematic side view of the tube cutting positioning seat of the present invention;

FIG. 8 is a schematic view of the other side of the tube cutting positioning seat in accordance with the present invention;

FIG. 9 is a schematic view of the pipe cutter of the present invention;

FIG. 10 is a schematic view of the quick release ball joint assembly of the present invention;

fig. 11 is a schematic view of the hand wheel structure of the present invention.

In the figure, a pipe cutting positioning seat 1, a pipe positioning part 11, a positioning handle 12, a tool post mounting cavity 13, an opening 131, a tool moving groove 132, an arc-shaped tool accommodating groove 133, a tool limiting stop part 134, a pipe cutting tool post 2, a pressing handle 21, a tool post mounting part 22, a guide seat 221, a hanging hole 222, an arc-shaped guide surface 223, a quick-release type connecting mechanism 3, a quick-release marble connecting assembly 31, a quick-release mounting hole 311, a tool quick-release hole 312, a quick-release column 313, a yielding arc-shaped part 314, a limiting part 315, a deflection-preventing limiting assembly 32, a tool mounting groove 321, a connecting tool shank 322, a first connecting strip 323, a second connecting strip 324, a tool shank positioning groove 325, a limiting hole 326, a limiting column 327, a tool post hinge hole 328, a limiting marble assembly 33, a tool post recess groove 331, a marble mounting hole 332, a limiting marble 333, a pipe cutting tool 4, a cutting space 41, a pipe cutting tool bit 42, a first pipe cutting portion 421, a second pipe cutting portion 422, a pipe cutting portion, The cutting tool comprises a cutting tool strip-shaped hole 43, a cavity 5, an anti-skid part 51, a hand wheel 52, a connecting rod body 53, a clamping hook body 54 and a handle connecting groove 55.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-11, the manual tube cutter includes a tube cutting positioning seat 1, one end of the tube cutting positioning seat 1 has an arc-shaped tube positioning portion 11, and the other end has a positioning handle 12, a tube cutter holder 2 intersecting with the tube cutting positioning seat 1 is rotatably disposed in a cutter holder installation cavity 13 in the tube cutting positioning seat 1, one end of the tube cutter holder 2 is provided with a pressing handle 21 corresponding to the positioning handle 12, the other end of the tube cutter holder 2 is connected with a tube cutter 4 through a quick-release connecting mechanism 3, one end of the tube cutter is inserted into the cutter holder installation cavity 13, and the other end of the tube cutter 4 is corresponding to the tube positioning portion 11, and a cutting space 41 is formed between the tube cutter 4 and the tube positioning portion 11. Through quick detach formula coupling mechanism 3 with cutting pipe cutter 4 removable be fixed in cutting pipe blade holder 2 to make cutting pipe blade holder 2 rotate and set up in cutting pipe positioning seat 1, when cutting pipe blade holder 2 rotated, cutting pipe cutter 4 can realize synchronous rotation, and is more convenient when cutting pipe cutter 4 dismouting moreover.

Wherein, quick detach formula coupling mechanism 3 is equipped with between pipe cutter 4 and pipe cutter blade holder 2 and/or pipe cutter positioning seat 1 and prevents the spacing subassembly 32 that deflects including setting up the quick detach marble coupling assembling 31 between pipe cutter 4 and pipe cutter blade holder 2. The deflection-preventing limiting component 32 is mainly used for fixing the pipe cutting tool 4 and the pipe cutting tool apron 2 and rotatably positioning the pipe cutting tool 4 and the pipe cutting tool apron in the tool apron mounting cavity 13.

As can be seen, the knife holder mounting cavity 13 forms an opening 131 on a side of the tube cutting positioning seat 1 away from the tube positioning portion 11, and a side of the knife holder mounting cavity 13 away from the opening 131 extends to a side of the tube cutting positioning seat 1 close to the tube positioning portion 11 and forms a knife moving slot 132 for the tube cutting knife 4 to penetrate. The tool apron mounting cavity 13 is provided with a tool apron limiting block for limiting one end of the pipe cutting tool apron 2.

Obviously, the end of the pipe cutting tool apron 2 away from the pressing handle 21 is provided with a tool apron mounting part 22 movably arranged in the tool apron mounting cavity 13, the tool apron mounting part 22 is hinged with the pipe cutting positioning seat 1, and the quick-release type connecting mechanism 3 is arranged between the tool apron mounting part 22 and the pipe cutting tool 4.

Further, the deflection-preventing limiting assembly 32 includes a cutter mounting groove 321 axially formed at one end of the cutter holder mounting portion 22, one end of the pipe cutting cutter 4 is provided with a connecting cutter handle 322 which is integrally formed and inserted into the cutter mounting groove 321, the connecting cutter handle 322 is provided with a first connecting strip 323 and a second connecting strip 324 which are arranged in parallel, a cutter handle positioning groove 325 is formed between the first connecting strip 323 and the second connecting strip 324, the cutter holder mounting portion 22 is provided with at least one limiting hole 326 which corresponds to the cutter handle positioning groove 325 and penetrates through the cutter mounting groove 321, and a limiting column 327 penetrating through the cutter handle positioning groove 325 is arranged in the limiting hole 326; the pipe cutting positioning seat 1 is provided with a cutter holder hinge hole 328 penetrating through the cutter holder mounting cavity 13, the cutter holder mounting part 22 is provided with two limiting holes 326 corresponding to the cutter holder positioning groove 325, one of the limiting holes 326 corresponds to the cutter holder hinge hole 328, two ends of a limiting column 327 in the limiting hole 326 are respectively penetrated through the cutter holder hinge hole 328 to form a hinge column, and the end part of the limiting column 327 in the remaining limiting hole 326 does not exceed the outer side of the limiting hole 326. Handle of a knife constant head tank 325 is uncovered, the grafting when being convenient for the dismouting, and spacing post 327 makes connecting handle of a knife 322 can realize with the rotation location of pipe cutting positioning seat 1.

Specifically, the end of the pipe cutter 4 away from the connection handle 322 is provided with a pipe cutter head 42, one side of the pipe cutter head 42 is provided with a first pipe cutting portion 421, one end of the first pipe cutting portion 421 extends to the end of the pipe cutter 4 away from the connection handle 322, the other end of the first pipe cutting portion 421 is connected with a second pipe cutting portion 422, an obtuse angle is formed between the first pipe cutting portion 421 and the second pipe cutting portion 422, and one side of the pipe cutter head 42 away from the first pipe cutting portion 421 and the second pipe cutting portion 422 is provided with a cutter strip-shaped hole 43. The first and second cut-off

portions

421 and 422 are provided to allow the cut pipe body to be linearly stressed from one side.

Furthermore, the quick release marble connecting assembly 31 includes a quick release mounting hole 311 disposed on the tool apron mounting portion 22 and penetrating through the tool mounting groove 321, the quick release mounting hole 311 corresponds to the tool quick release hole 312 on the first connecting bar 323 or the second connecting bar 324, a quick release post 313 penetrates through the quick release mounting hole 311 and the tool quick release hole 312 respectively, two ends of the quick release post 313 extend to the outside of the tool apron mounting portion 22 respectively, an abdicating arc portion 314 corresponding to the quick release post 313 is disposed on the outside of one end of the pipe cutting positioning seat 1 away from the pipe positioning portion 11, one end of the quick release post 313 has a limiting portion 315 abutting against one side of the tool apron mounting portion 22, and the other end has a limiting marble assembly 33 abutting against the other side of the tool apron mounting portion 22; spacing marble subassembly 33 is including setting up in blade holder installation department 22 one side and inside sunken blade holder undercut 331, quick detach post 313 one end is worn out and quick detach post 313 one end radially is provided with marble mounting hole 332 by blade holder undercut 331, marble mounting hole 332 internalization is equipped with spacing marble 333, the outside of spacing marble 333 exposes in the marble mounting hole 332 outside and supports and lean on the setting with blade holder undercut 331 bottom, be equipped with the roof pressure spring that leans on with spacing marble 333 counterbalance in the marble mounting hole 332. During disassembly, the limiting marble 333 is pushed to enable the limiting marble 333 to completely enter the marble mounting hole 332 by overcoming the acting force of the jacking spring, and then the quick-release column 313 is pulled out, so that the pipe cutting tool 4 can be pulled out and disassembled.

More specifically, one end of the tool moving groove 132 extends to the inner side of the tube positioning portion 11 to form an arc-shaped tool receiving groove 133 corresponding to the tube cutting head 42, the inner side of the arc-shaped tool receiving groove 133 has a tool limiting stopper portion 134 extending to the inner side of the tool rest mounting cavity 13, the outer side of the tool rest mounting portion 22 having one end of the tool mounting groove 321 is provided with a guide seat 221 corresponding to the tool moving groove 132 and having a hanging hole 222, and the inner side of the tool rest mounting cavity 13 has an arc-shaped guide surface 223 corresponding to the guide seat 221. The arc-shaped guide surface 223 and the holder stopper cooperate with each other to limit the circumferential rotation of the holder mounting portion 22.

In detail, the positioning handle 12 is inclined towards the pressing handle 21 and integrally formed at one end of the pipe cutting positioning seat 1, the pressing handle 21 is inclined towards the positioning handle 12 and integrally formed at one end of the pipe cutting tool apron 2, one end of the pressing handle 21 close to the pipe cutting tool apron 2 is provided with a handle limiting portion 211 abutted against the positioning handle 12, one sides of the pressing handle 21 and the positioning handle 12 close to each other are respectively provided with a cavity 5, and one sides of the pressing handle 21 and the positioning handle 12 far away from each other are provided with an anti-slip portion 51.

Preferably, a hand wheel 52 is rotatably disposed at one end of the pressing handle 21 away from the pipe cutting tool holder 2, a connecting rod 53 extending towards the positioning handle 12 is connected to the hand wheel 52, and a hook 54 engaged with a handle connecting groove 55 at the end of the positioning handle 12 is disposed at one end of the connecting rod 53.

In summary, the principle of the present embodiment is: when the pipe cutting tool 4 is installed, firstly, the connecting tool shank 322 is inserted into the tool installation groove 321, so that the tool shank positioning groove 325 corresponds to the limiting hole 326 on the pipe cutting tool holder 2 and the tool holder hinge hole 328 on the pipe cutting positioning seat 1, the limiting column 327 is inserted for rotating and positioning, and the quick-release column 313 is inserted into the quick-release installation hole 311, so that the limiting marble 333 is popped out of the marble installation hole 332 and abuts against the bottom of the tool holder recess groove 331, and thus the pipe cutting tool 4 is installed; during disassembly, the pipe cutter 4 can be pulled out by pushing the limiting marble 333 to overcome the acting force of the jacking spring and completely enter the marble mounting hole 332, and then pulling out the quick-release column 313, so that the pipe cutter 4 can be disassembled.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the present disclosure largely uses the tube cutting positioning seat 1, the tube positioning portion 11, the positioning handle 12, the holder mounting cavity 13, the opening 131, the tool moving groove 132, the arc-shaped tool accommodating groove 133, the tool positioning stopper 134, the tube cutting holder 2, the pressing handle 21, the holder mounting portion 22, the guide holder 221, the hanging hole 222, the arc-shaped guide surface 223, the quick release type connecting mechanism 3, the quick release marble connecting assembly 31, the quick release mounting hole 311, the tool quick release hole 312, the quick release post 313, the abdicating arc portion 314, the limiting portion 315, the deflection preventing limiting assembly 32, the tool mounting groove 321, the connecting holder 322, the first connecting bar 323, the second connecting bar 324, the holder positioning groove 325, the limiting hole 326, the limiting post 327, the holder hinge hole 328, the limiting marble assembly 33, the holder recess groove 331, the marble mounting hole 332, the limiting marble 333, the tube cutting tool 4, the cutting space 41, the tube cutting head 42, the first tube cutting portion 421, the second connecting bar 323, the quick release type connecting bar connecting assembly 31, the quick release type connecting structure 31, the quick release type release mechanism, the release mechanism, and the release mechanism, and the release mechanism, and release, The terms of the second cutting pipe portion 422, the cutter bar-shaped hole 43, the cavity 5, the anti-slip portion 51, the hand wheel 52, the connecting rod body 53, the hook body 54, the handle connecting groove 55, etc., but do not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. The utility model provides a manual pipe cutter, includes pipe cutting positioning seat (1), pipe cutting positioning seat (1) one end have and be curved body location portion (11), the other end has location handle (12), cutter holder installation cavity (13) internal rotation in pipe cutting positioning seat (1) be equipped with pipe cutting positioning seat (1) be pipe cutter seat (2) that the cross set up, pipe cutter seat (2) one end be equipped with location handle (12) correspond the handle (21) of pressing that sets up, a serial communication port, pipe cutter seat (2) other end be connected with through quick detach formula coupling mechanism (3) one end and wear to locate in cutter holder installation cavity (13) and the other end corresponds pipe cutter (4) that set up with body location portion (11), just pipe cutter (4) and body location portion (11) between form cutting space (41).

2. Manual pipe cutter according to claim 1, wherein the quick release type connection mechanism (3) comprises a quick release ball connection assembly (31) disposed between the pipe cutter (4) and the pipe cutter holder (2), and an anti-deflection limiting assembly (32) is disposed between the pipe cutter (4) and the pipe cutter holder (2) and/or the pipe cutter positioning seat (1).

3. The manual pipe cutter according to claim 1, wherein the knife holder mounting cavity (13) forms an opening (131) at a side of the pipe cutter positioning seat (1) away from the pipe positioning portion (11), and a side of the knife holder mounting cavity (13) away from the opening (131) extends to a side of the pipe cutter positioning seat (1) close to the pipe positioning portion (11) and forms a knife movable slot (132) for the pipe cutter (4) to penetrate.

4. A manual pipe cutter according to claim 2 wherein the end of the pipe cutter holder (2) remote from the push handle (21) has a holder mounting portion (22) movably disposed in the holder mounting cavity (13), the holder mounting portion (22) is hingedly connected to the pipe cutter positioning seat (1), and the quick release coupling mechanism (3) is disposed between the holder mounting portion (22) and the pipe cutter (4).

5. The manual pipe cutter according to claim 4, wherein the deflection-preventing limiting assembly (32) comprises a cutter mounting groove (321) axially formed at one end of the cutter holder mounting portion (22), one end of the pipe cutting cutter (4) is provided with a connecting cutter handle (322) which is integrally formed and inserted into the cutter mounting groove (321), the connecting cutter handle (322) is provided with a first connecting strip (323) and a second connecting strip (324) which are arranged in parallel, a cutter holder positioning groove (325) is formed between the first connecting strip (323) and the second connecting strip (324), at least one limiting hole (326) which corresponds to the cutter holder positioning groove (325) and penetrates through the cutter mounting groove (321) is formed in the cutter holder mounting portion (22), and a limiting column (327) penetrating through the cutter holder positioning groove (325) is formed in the limiting hole (326); pipe cutting positioning seat (1) on be equipped with blade holder hinge hole (328) that runs through blade holder installation cavity (13), blade holder installation department (22) on be equipped with two spacing holes (326) corresponding with handle of a knife constant head tank (325), spacing post (327) both ends in one of them spacing hole (326) and blade holder hinge hole (328) corresponding and this spacing hole (326) are worn to locate respectively in blade holder hinge hole (328) and are formed the hinge post, spacing post (327) tip in the spacing hole (326) of surplus does not surpass spacing hole (326) outside.

6. The manual pipe cutter of claim 5, wherein one end of the pipe cutter (4) away from the connection handle (322) is provided with a pipe cutter head (42), one side of the pipe cutter head (42) is provided with a first pipe cutting portion (421), one end of the first pipe cutting portion (421) extends to one end of the pipe cutter (4) away from the connection handle (322) and the other end is connected with a second pipe cutting portion (422), an obtuse angle is formed between the first pipe cutting portion (421) and the second pipe cutting portion (422), and one side of the pipe cutter head (42) away from the first pipe cutting portion (421) and the second pipe cutting portion (422) is provided with a cutter strip-shaped hole (43).

7. Manual pipe cutter according to claim 5, wherein said quick release ball attachment assembly (31) comprises a quick release mounting hole (311) provided on the tool holder mounting portion (22) and penetrating the tool mounting groove (321), the quick-release mounting hole (311) corresponds to the cutter quick-release hole (312) on the first connecting bar (323) or the second connecting bar (324), a quick-release column (313) respectively penetrates through the quick-release mounting hole (311) and the cutter quick-release hole (312), two ends of the quick-release column (313) respectively extend to the outer side of the cutter holder mounting part (22), the outer side of one end of the pipe cutting positioning seat (1) far away from the positioning part (11) of the pipe body is provided with an abdicating arc part (314) corresponding to the quick-release column (313), one end of the quick-release column (313) is provided with a limiting part (315) abutted against one side of the tool apron mounting part (22), and the other end of the quick-release column is provided with a limiting marble component (33) abutted against the other side of the tool apron mounting part (22); spacing marble subassembly (33) including setting up in blade holder installation department (22) one side and inside sunken blade holder depressed groove (331), quick detach post (313) one end wear out and quick detach post (313) one end radially is provided with marble mounting hole (332) by blade holder depressed groove (331), marble mounting hole (332) internalization be equipped with spacing marble (333), spacing marble (333) outside expose in marble mounting hole (332) outside and lean on the setting with blade holder depressed groove (331) bottom, marble mounting hole (332) in be equipped with the roof pressure spring that leans on with spacing marble (333).

8. The manual pipe cutter according to claim 6, wherein one end of the cutter moving groove (132) extends to the inner side of the positioning portion (11) of the pipe body to form an arc-shaped cutter receiving groove (133) corresponding to the pipe cutter head (42), the inner side of the arc-shaped cutter receiving groove (133) is provided with a cutter limiting stop portion (134) extending into the cutter holder mounting cavity (13), the outer side of the end of the cutter holder mounting portion (22) having the cutter mounting groove (321) is provided with a guide seat (221) corresponding to the cutter moving groove (132) and having a hanging hole (222), and the cutter holder mounting cavity (13) is provided with an arc-shaped guide surface (223) corresponding to the guide seat (221).

9. Manual pipe cutter according to claim 6, wherein the positioning handle (12) is inclined towards the pressing handle (21) and is integrally formed at one end of the pipe cutting positioning seat (1), the pressing handle (21) is inclined towards the positioning handle (12) and is integrally formed at one end of the pipe cutting tool holder (2), one end of the pressing handle (21) close to the pipe cutting tool holder (2) is provided with a handle limiting portion (211) abutted against the positioning handle (12), one sides of the pressing handle (21) and the positioning handle (12) close to each other are respectively provided with a cavity (5), and one sides of the pressing handle (21) and the positioning handle (12) far away from each other are provided with an anti-slip portion (51).

10. The manual pipe cutter according to claim 9, wherein a hand wheel (52) is rotatably arranged at one end of the pressing handle (21) far away from the pipe cutter seat (2), a connecting rod body (53) extending towards the positioning handle (12) is connected to the hand wheel (52), and a hook body (54) clamped with a handle connecting groove (55) at the end of the positioning handle (12) is arranged at one end of the connecting rod body (53).