TW201803668A - Pipe cutter - Google Patents

Abstract

The present invention discloses a pipe cutter, comprising: a body provided with a first pivot portion, a container, a first slide rail and a first pivot hole; a cutting wheel pivoted to the body; a slip set which is in slide arrangement on the first slide rail and includes a sliding seat, two first pivot rods and two rollers; a screw set which is set in combination with the body and the slip set and comprises a screw and a rotating member; at least one control member mounted at the container, engaged with the screw and provided with a second pivot hole, right opposite to the first pivot hole; at least one elastic member which is arranged in the container of the body and presses a pressing part to make the control member press against the elastic member and then to make the control member depart from the screw; and a second pivot rod pivoted to the first pivot hole of the body and the second pivot hole of the control member and making the control member arranged at the container without disengagement.

Description

Pipe cutter structure

The invention relates to all pipe structure, especially a control member of a pipe cutter structure is arranged at the side of the screw, so that the second screwing part of the control member has a first length, and the length direction of the first length It is parallel to the axis of the screw, so that the second screwing portion has a larger meshing distance with the screw, and the screw has a larger supporting force.

According to my previous knowledge, the conventional pipe cutter structure is, for example, U.S. Patent No. US3145469. The structure of this patent case is: a body 1, which is C-shaped, and one end of the body 1 is provided with a plurality of pivots. The first blade body 2, the body 1 is provided with an accommodation space 4, and the accommodation space 4 is provided with a first pivot portion 11; a moving rod 5, the moving rod 5 is a round rod body with external threads The moving rod 5 is pivoted at the first pivot portion 11. The moving rod 5 is rotatable and displaceable at the first pivot portion 11. One end of the moving rod 5 is provided with a rotating portion 6 for users. Turning, the other end of the moving rod 5 is provided with a top 7; a moving base 8, which is pivoted on the body 1 and abuts against the top 7, and the moving base 8 is provided with a second knife Body 10, the second blade body 10 is relatively positive to the first blade body 2, the second blade body 10 is circular, and when the moving rod 5 rotates and displaces at the first pivot portion 11 The moving seat 8 can be driven to perform an arc-shaped displacement to adjust the distance between the second blade body 10 and the first blade body 2; a pressing member 14 is pivoted on the body 1 by a second pivot lever 15 On the other hand, one end of the pressing member 14 is provided with an engaging portion 18 which is engaged with the external thread of the moving rod 5; an elastic member 17 which elastically abuts the body 1 and the pressing member 14 On the other hand, the user can press the pressing member 14 so that the elastic element 17 is compressed by the pressing member 14. The engaging portion 18 is disengaged from the moving rod 5, and the moving rod 5 can be The first pivot portion 11 is linearly displaced.

But the lack of this conventional pipe cutter structure lies in:

1. As shown in Figure 1 of the bulletin, the axis of the second pivot rod 15 and the axis of the moving rod 5 are perpendicular to each other, so that the pressing member 14 can only be provided with an engaging portion at one end. 18, the engaging portion 18 is engaged with the external thread of the moving rod 5, so that the pressing member 14 is at most only half of the length provided with the engaging portion 18 to engage with the moving rod 5. The length of the engagement between the two is The shorter the support system of the moving rod 5 is, the shorter it is.

2. When the moving rod 5 rotates and displaces at the first pivot portion 11, the moving seat 8 can be driven to perform an arc displacement to adjust the distance between the second blade body 10 and the first blade body 2, but The displaceable distance of the moving base 8 by way of arc displacement is small and limited, and the adjustment space is small and inconvenient to use.

3. The moving seat 8 is an arc-displacement method. There is a difference in the relative position between the second blade body 10 and the first blade body 2. When the second blade body 10 and the first blade body 2 are different, Missing when cutting the tube.

In view of the lack of the conventional pipe cutter structure mentioned above, the inventor finally came to the market with a product that can solve the shortcomings of the conventional pipe cutter structure through years of manufacturing and design experience in related industries.

The problem to be solved by the invention: The pressing member of the conventional pipe cutter structure is at most only one half of the length provided with an engaging portion to engage the moving rod. The length of the engagement between the two is relatively short. The pipe cutter structure of the present invention The control part is arranged at the side of the screw, so that the second screwing part of the control part has a first length, and the length direction of the first length is parallel to the axis of the screw, so that the second part of the control part The screwing portion has a larger meshing distance with the screw, and the screw has a larger supporting force.

Technical means for solving the problem: a pipe cutter structure, comprising: a system provided with a first pivot portion, a groove, a first slide rail and a first pivot hole; all wheels are pivotally arranged on the body; A sliding group is slidably disposed on the first slide rail. The sliding group includes: a sliding seat, two first pivot rods and two rollers; a screw group is arranged in combination with the body and the sliding group, The screw assembly includes: a screw and a rotating member; at least one control member is accommodated at the receiving groove, the control member is engaged with the screw, and the control member is provided with a second pivot hole, and the second pivot hole system It is relatively positive to the first pivot hole; at least one elastic element is accommodated in the receiving groove of the body, and the pressing part is pressed to press the control element against the elastic element, and the control element is separated from the screw; A second pivot rod is pivotally disposed at the first pivot hole of the body and the second pivot hole of the control member, so that the control member is accommodated at the receiving groove without being disengaged.

Contrast the effect of the prior art: the second pivot hole of the body and the first pivot In a parallel shape, the control member is disposed at the side of the screw, so that the control member and the second screw joint portion have a first length, and the length direction of the first length is parallel to the axis of the screw. Therefore, there is a large meshing distance between the second screwing portion of the control member and the first screwing portion of the screw. The meshing distance is the first length, and the distance between the screw and the control member is Has greater support.

In order to fully understand the effects of the present invention by members of the Bureau and those skilled in the art, the structure and composition of the present invention are explained in conjunction with the drawings and figures, but the following are only used to explain the implementation of the present invention. For example, it is not intended to limit the present invention in any form, and any modification made under the spirit of the present invention should still fall within the protection scope of the present invention.

10‧‧‧ Ontology

11‧‧‧ first hub

12‧‧‧ tank

121‧‧‧First Arrival Department

13‧‧‧ the first slide

14‧‧‧ first pivot hole

20‧‧‧cut wheel

30‧‧‧Slip group

31‧‧‧Sliding Block

311‧‧‧Second slide

312‧‧‧First Hub

313‧‧‧Second Pivot

314‧‧‧Second pivot

315‧‧‧second joint

316‧‧‧Alignment

32‧‧‧ first pivot

33‧‧‧ Wheel

331‧‧‧Third pivot

34‧‧‧The first combination

40‧‧‧Screw set

41‧‧‧Screw

411‧‧‧First screwing part

412‧‧‧Third pivot

413‧‧‧Fourth Hub

414‧‧‧First fitting

415‧‧‧Third junction

42‧‧‧Rotating parts

421‧‧‧Capacity Room

43‧‧‧Second Combination

44‧‧‧ cap

50‧‧‧Control

51‧‧‧Second screw joint

511‧‧‧first length

52‧‧‧ second pivot hole

53‧‧‧Pressing section

54‧‧‧ Receptacle

55‧‧‧Second Arrival Department

60‧‧‧Elastic element

70‧‧‧ second pivot

The first figure is an exploded perspective view of the structure of the pipe cutter of the present invention.

The second figure is an exploded perspective view of the sliding group of the pipe cutter structure of the present invention.

The third figure is an exploded perspective view of the screw set of the pipe cutter structure of the present invention.

The fourth figure is a perspective view of the structure control member of the pipe cutter of the present invention.

The fifth figure is a perspective assembled view of the pipe cutter structure of the present invention.

The sixth figure is a perspective assembled view of some components of the pipe cutter structure of the present invention.

The seventh figure is a front view of the pipe cutter structure of the present invention.

The eighth figure is a cross-sectional view of the seventh figure A-A of the present invention.

The ninth figure is a sectional view of another operating state at the seventh figure A-A of the present invention.

The tenth figure is a perspective view of another operation state of the pipe cutter structure of the present invention.

The eleventh figure is an exploded perspective view of the second embodiment of the present invention.

First, please refer to the first to fourth figures. The first figure is an exploded perspective view of the pipe cutter structure of the present invention, and the second figure is an exploded perspective view of the pipe cutter structure sliding group 30 of the present invention. FIG. 3 is an exploded perspective view of the pipe cutter structure screw set 40 of the present invention. The fourth diagram is a perspective view of the pipe cutter structure control member 50 of the present invention. The present invention relates to a pipe cutter structure. The pipe cutter structure includes: The main body 10 is a C-shaped seat body. One end of the main body 10 is provided with a first pivot portion 11 penetrating therethrough. The main body 10 is provided with at least one receiving groove 12. The receiving groove 12 is connected to the first A pivot portion 11 is connected. The receiving groove 12 is provided with a first abutting portion 121, the body 10 is provided with a first slide rail 13, and the body 10 is provided with a first portion near the first pivot portion 11. A pivot hole 14, the first pivot hole 14 is in communication with the receiving groove 12, the axis of the first pivot hole 14 is parallel to the axis of the first pivot portion 11, and the first pivot The holes 14 are in the shape of circular holes that pass through. The two receiving grooves 12 are two. The two receiving grooves 12 are symmetrical with respect to the first pivot portion 11. The two receiving grooves 12 are in communication with each other. Groove-shaped; all wheels 20, the cutting wheel 20 is a circular blade body, the cutting wheel 20 is pivoted on the body 10, the cutting wheel 20 is opposite to the first pivot portion 11, the cutting wheel 20 series is far away from the first pivot part 11; a sliding group 30, please supplement as shown in the second figure, the sliding group 30 is slidingly arranged on the first sliding track 13, and the sliding group 30 is Including: two sliding seats 31, two first pivot rods 32, two rollers 33 and a first coupling member 34; The two sliding bases 31 are arranged oppositely and symmetrically. The two sliding bases 31 are arranged mutually. Each of the sliding bases 31 is provided with a second sliding rail 311. The second sliding rail 311 It is slid with the first sliding rail 13 so that the sliding group 30 can slide linearly on the body 10. The sliding base 31 is provided with a first pivoting portion 312 and a second pivoting The first pivoting portion 312 and the second pivoting portion 313 are concentric, and the first pivoting portion 312 and the second pivoting portion 313 are connected. The first pivoting portion The diameter of 312 is larger than the diameter of the second pivoting portion 313. The two first pivoting portions 312 form a first accommodation space, and the two second pivoting portions 313 form a second accommodation space. The sliding seat 31 is provided with two second pivot portions 314, which are in the shape of a circular groove. The sliding seat 31 is provided with a second coupling portion 315, and one of the sliding seats 31 The second joint portion 315 is in the shape of a penetrating circular hole, and the second joint portion 315 of the other sliding seat 31 is in the shape of an internal thread. The sliding seat 31 is provided with two alignment portions 316. The two alignment portions 316 of the sliding seat 31 are in the shape of a round convex column, The two alignment parts 316 of a sliding base 31 are in the shape of circular grooves. When the two sliding bases 31 are arranged together, the two alignment parts 316 in the shape of a circular convex column will be in line with the other two. The circular groove-shaped alignment portions 316 are fitted together; each first pivot rod 32 is pivoted between each second pivot portion 314, the first pivot rod 32 is in the shape of a round rod, and the roller 33 is It is pivoted on the first pivot rod 32, the roller 33 is provided with a third pivot portion 331, the third pivot portion 331 is pivoted with the first pivot rod 32, and the two rollers 33 are connected with the cutting wheel 12 is relatively positive; the first coupling member 34 is threadedly connected to each of the second coupling portions 315, so that the two sliding seats 31 are arranged together; a screw group 40, please supplement as shown in the third figure, The screw set 40 is connected to the main body 10 And the sliding group 30, the screw group 40 includes: a screw 41, a rotating member 42, a second coupling member 43, and a cover 44; a first screwing portion 411 is provided on the screw 41; A screwing portion 411 is pivoted in the first pivoting portion 11, the screw 41 is rotatable and displaceable at the first pivoting portion 11, and one end of the screw 41 is provided with a third pivoting portion 412 and a fourth A pivoting portion 413, the third pivoting portion 412 is pivoted with the first pivoting portion 312, and the fourth pivoting portion 413 is pivoted with the second pivoting portion 313, so that the screw group 40 Set with the sliding group 30, when the screw group 40 is displaced at the first pivot portion 11, the sliding group 30 can be driven to move along the first slide rail 13, and the other end of the screw 41 is provided The first non-circular first fitting portion 414 is provided with a third coupling portion 415 therein, and the third coupling portion 415 is in a screw hole shape; the rotating member 42 is combined with the screw 41, The rotating member 42 is provided for the user to rotate to integrally drive the screw 41 to rotate and displace in the first pivot portion 11. One end of the rotating member 42 is provided with a receiving chamber 421, which is formed in a circular groove shape. The rotating member 42 is provided with a first An engaging portion, the second engaging portion is engaged with the first engaging portion 414, a fourth engaging portion is provided in the second engaging portion, and the fourth engaging portion is connected to the third engaging portion 415 Relatively positive, the fourth joint part is perforated; the second joint part 43 is passed through the third joint part 415 and the fourth joint part of the rotating part 42 so that the screw 41 and the rotating part 42, the second coupling member 43 is externally threaded; the cover 44 is housed in the opening of the receiving chamber 421 of the rotating member 42 to close the receiving chamber 421; at least one control member 50, the control member The 50 series is installed at 12 places in the tank. The groove 12 is closed. The control member 50 is provided with a second screwing portion 51. The second screwing portion 51 is engaged with the first screwing portion 411. The control member 50 is provided on the screw 41 side. On the side, the second screwing portion 51 has a first length 511, the control member 50 and the second screwing portion 51 each have a first length 511, and the length direction of the first length 511 is connected to the screw 41 The axes are parallel to each other. The control member 50 is provided with a second pivot hole 52 which is opposite to the first pivot hole 14 and the second pivot hole 52 is screwed with the second screw hole 52. The portion 51 is provided on the same side of the control member 50. The second pivot hole 52 is in the shape of a circular hole. The control member 50 is provided with a pressing portion 53 which is slightly exposed outside the body 10. The control member 50 is provided with a bomb-receiving groove 54 near the bottom end, and the control member 50 is provided with a second abutting portion 55, which is abutted against the first abutting portion 121. However, the two control members 50 are two, and the two control members 50 are relatively symmetrical with respect to the screw 41. Each control member 50 is accommodated in each of the tanks 12, and two of the two control members 50 are The second pivot hole 52 is relatively positive Relative to the first pivot hole 14, the elastic receiving grooves 54 of the two control members 50 are relatively positive; at least one elastic element 60 is disposed in the receiving groove 12 of the body 10 and the receiving groove 12. In the elastic accommodating groove 54, one end of the elastic element 60 is elastically abutted against the wall surface of the accommodating groove 12, and the other end is elastically abutted against the control member 50, so that the second screwing portion 51 and the first screwing portion 411 is engaged, and the pressing portion 53 is pressed, so that the pressing portion 53 is pressed against the elastic element 60 to be compressed. The second screwing portion 51 is disengaged from the first screwing portion 411, and the elastic element 60 There are two, each elastic element 60 is spring-loaded on each control member 50, the user needs to press the pressing portion 53 of the two control members 50 at the same time; a second pivot lever 70, the second pivot lever 70 is pivotally disposed at the first pivot hole 14 of the body 10 and the second pivot hole 52 of the control member 50, so that the control member 50 is accommodated at the receiving groove 12 without being disengaged.

The body 10, the cutting wheel 20, the sliding group 30, the screw group 40, the two control members 50, the two elastic elements 60, and the second pivot lever 70 are assembled as shown in the fifth figure. The sixth figure is a three-dimensional assembled view of some components of the pipe cutter structure of the present invention, and the sixth figure is without the body 10 and the cutting wheel 20.

Please refer to the seventh and eighth figures. The seventh figure is a front view of the pipe cutter structure of the present invention, and the eighth figure is a cross-sectional view at the seventh figure AA of the present invention. The group 30 can slide on the body 10, the screw group 40 can pass through the first pivot portion 11 and can be assembled with the sliding group 30, and the screw group 40 can move on the first pivot The part 11 rotates and displaces, and simultaneously drives the sliding group 30 to slide linearly on the first slide rail 13 to adjust the distance between the roller 33 and the cutting wheel 20. The control member 50 is relatively accommodated. At the receiving groove 12, the second screwing portion 51 is engaged with the first screwing portion 411, the pressing portion 53 is slightly protruded from the body 10, and the two elastic elements 60 are elastically pressed against the On the wall surface of the tank 12 and the control member 50, the second pivot lever 70 is pivotally disposed at the first pivot hole 14 and the second pivot hole 52, so that the control member 50 is assembled with the body 10 and Do not disengage.

Please refer to the ninth and tenth diagrams. The ninth diagram is a cross-sectional view of another operating state at the seventh diagram AA of the present invention, and the tenth diagram is a perspective view of another operating state of the pipe cutter structure of the present invention. When the pressing portion 53 of the two control members 50 is moved, the pressing portion 53 is displaced inward and presses against the elastic element 60 at the same time, so that the elastic element 60 is compressed, and the second screwing portion 51 and the first The screwing part 411 is disengaged. At this time, the user can quickly displace the screw set 40 at the first pivot part 11 to quickly adjust the distance between the two rollers 33 and the cutting wheel 20. As shown in the tenth figure.

Please continue to refer to the eleventh figure, which is the second embodiment of the present invention. The three-dimensional exploded view can be clearly shown from the figure. This embodiment is provided with only a control member 50 and an elastic element 60.

In another embodiment of the present invention, the pivot rod 32 may be integrated with the roller 33, and the control member 51 may be integrated with the pressing member 52, that is, the control member 51 may be directly provided with a pressing member 52. .

In another embodiment of the present invention, the first length 5111 of the second screwing portion 511 of the control member 51 is shorter than the length of the control member 51, that is, the internal thread of the second screwing portion 511 is not full. shape.

In another embodiment of the present invention, the first pivot hole 14 is two, the second pivot hole 52 of the two control members 41 are not relatively positive, and the second pivot lever 70 is two. Each control Each of the second pivot holes 52 of the member 41 is pivoted at each of the first pivot holes 14 with each of the second pivot levers 70, and has the same effect.

The pipe cutter structure of the present invention has the following advantages:

1. The second pivot hole 14 is parallel to the first pivot portion 11, and the control member 50 is provided at the side of the screw 41 so that the control member 50 and the second screwing portion 51 both have The first length 511, and the length direction of the first length 511 is parallel to the axis of the screw 41, so that the second screwing portion 51 and the first screwing portion 411 have a larger meshing distance. The meshing distance is the first length 511, that is, the length of the control member 50. The screw 41 and the control member 50 have a large supporting force.

2. The present invention is provided with two control members 50, so that both sides of the screw 40 have the supporting force of the control member 50.

3. The pipe cutter structure is provided with two control members 50, which must be pressed simultaneously. The pressing part 53 disengages the second screwing part 51 from the first screwing part 411. This is a design structure of bilateral pressing, which can avoid accidentally pressing one of the pressing parts 53 during operation to make the The second screwing portion 51 is disengaged from the first screwing portion 411. The pipe cutter structure must simultaneously press the pressing portion 53 of the two control members 50, so that the second screwing portion 51 and the The phase of the first screwing portion 411 is disengaged, which is safe.

4. The sliding group 30 of the pipe cutter structure is a linear displacement method to adjust the distance between the two rollers 33 and the cutting wheel 20. The linear displacement of the sliding group 30 can be moved and the distance of the adjusted distance is relatively large. Big.

5. The sliding group 30 adjusts the distance between the two rollers 33 and the cutting wheel 20 in a linear displacement manner, whereby the two rollers 33 and the cutting wheel 20 are linearly approached and far away, and the relative position is constant.

6. The second slide rail 311 of the slide base 31 of the slide group 30 is slid with the first slide rail 13 of the body 10, and the screw group 40 is pivotally provided at the first pivot portion 11. It is arranged with the sliding group 30 at the same time. When the screw group 40 rotates and displaces in the first pivot portion 11, it can simultaneously drive the sliding group 30 to do the same direction on the first slide rail 13. Slide to adjust the distance between the two rollers 33 and the cutting wheel 20 quickly.

7. When the second screwing portion 51 is engaged with the first screwing portion 411, the screw group 40 is rotated, so that the first screwing portion 411 of the screw 41 of the screw group 40 is connected to the second The screwing portion 51 meshes and rotates, and the screw group 40 meshes and shifts, which has the effect of finely adjusting the distance between the two rollers 33 and the cutting wheel 20.

Therefore, the pipe cutter structure of the present invention has deep industrial use value, novelty, and progress, and can meet the application requirements of the invention patent, and apply in accordance with the law.

10‧‧‧ Ontology

11‧‧‧ first hub

12‧‧‧ tank

121‧‧‧First Arrival Department

13‧‧‧ the first slide

14‧‧‧ first pivot hole

20‧‧‧cut wheel

30‧‧‧Slip group

40‧‧‧Screw set

50‧‧‧Control

60‧‧‧Elastic element

70‧‧‧ second pivot

Claims (14)

A pipe cutter structure comprises: a body, one end of which is provided with a first pivot portion penetrating therethrough, the system is provided with at least one receiving groove, and the receiving groove is in communication with the first pivot portion, The system is provided with a first slide rail, the body is provided with a first pivot hole near the first pivot portion, the first pivot hole is in communication with the receiving slot, and the axis of the first pivot hole is It is parallel to the axis of the first pivot; all wheels, the cutting wheel is a circular blade, the cutting wheel is pivoted on the body, and the cutting wheel is connected to the first pivot Relatively positive, the cutting wheel system is far away from the first pivot portion; a sliding group is slidingly arranged on the first sliding rail, and the sliding group includes: a sliding seat, two first A pivot rod and two rollers; the sliding seat is provided with a second slide rail, and the second slide rail is slidably arranged with the first slide rail, so that the slide assembly can slide linearly on the body, the The sliding seat is provided with two second pivots, the second pivots are circular grooves; each first pivot is pivoted between each second pivot, and the first pivot is a circular rod. Body shape; the wheel is pivoted on the On a pivot rod, the roller system is provided with a third pivot portion, the third pivot portion is pivoted with the first pivot rod, the two roller systems are relatively positive to the cutting wheel; a screw group, the screw group system In combination with the body and the sliding group, the screw assembly includes: a screw and a rotating part; a first screwing part is arranged on the screw, and the first screwing part is pivotally arranged in the first pivot part The screw system can be rotated and displaced at the first pivot portion. When the screw group is displaced at the first pivot portion, the sliding group can drive the sliding group to move along the first slide rail; the rotating member is connected with the Combined with a screw, the rotating part is for the user to rotate to drive the whole The screw rotates and displaces in the first pivot portion; at least one control member is housed in the receiving groove, the control member is provided with a second screwing portion, and the second screwing portion is connected with the first screwing portion. A screwing portion is engaged, the control member is provided at the side of the screw, the second screwing portion has a first length, and the control member and the second screwing portion each have a first length. The length direction of a length is parallel to the axis of the screw. The control member is convexly provided with a second pivot hole. The second pivot hole is relatively positive to the first pivot hole. A second screwing portion is provided on the same side of the control member, the second pivot hole is a circular hole groove shape, the control member is provided with a pressing portion, and the pressing portion is slightly exposed outside the body; at least one An elastic element is accommodated in the receiving groove of the body, one end of the elastic element is resilient against the wall surface of the receiving groove, and the other end is resilient against the control member, so that the second screw is engaged. The first screwing portion is engaged with the first screwing portion, and the pressing portion is pressed, so that the control member is pressed against the elastic element to be compressed, and the second screwing portion That is, it is disengaged from the first screwing part; a second pivot lever is pivotally arranged at the first pivot hole of the body and the second pivot hole of the control member, so that the control The pieces are accommodated in the groove without being disengaged. The pipe cutter structure according to claim 1, wherein the system is a C-shaped seat body, the receiving groove is provided with a first abutting portion, and the control member is provided with a second abutting portion. The second abutting portion is abutted against the first abutting portion. The pipe cutter structure according to claim 1, wherein the first pivot hole is a circular hole passing therethrough, the receiving groove is two, and the two receiving grooves are symmetrical with respect to the first pivot system. The two tanks are in communication with each other and are in the shape of a through tank; the control system is two; the two control systems are symmetrical with respect to the screw system; each control system is accommodated in each tank Where the second pivot hole of the two control members is relatively positive and is relatively positive with the first pivot hole, the elastic element is two, and each spring The sexual element is ejected on each control element, and the user needs to press the pressing portion of the two control elements at the same time. The pipe cutter structure according to claim 1, wherein the two sliding seats are two, the two sliding seats are oppositely arranged and symmetrical, and the two sliding seats are mutually arranged, the Each sliding seat is provided with a second sliding rail. The pipe cutter structure according to claim 1, wherein a side of the sliding seat is provided with a first pivoting portion and a second pivoting portion, and the first pivoting portion and the second pivoting portion are present. Coaxial, the first pivoting portion and the second pivoting portion are in communication. The diameter of the first pivoting portion is larger than the diameter of the second pivoting portion, and the two first pivoting portions are opposite to each other. It is a first accommodation space, and the two second pivoting portions are relatively combined to form a second accommodation space. One end of the screw is provided with a third pivoting portion and a fourth pivoting portion. The third pivoting portion is It is pivoted with the first pivoting part, and the fourth pivoting part is pivoted with the second pivoting part, so that the screw group and the sliding group are assembled. The pipe cutter structure according to claim 1, wherein the sliding seat is provided with a second joint portion, and the second joint portion of one of the slide seats is a penetrating circular hole shape, and the other slides The second joint part of the seat is internally threaded, and the sliding group is provided with a first coupling part. The first coupling part is threadedly connected to each second joint part, so that the two sliding seats Phase set. The pipe cutter structure according to claim 1, wherein the sliding base is provided with two alignment parts, and the two alignment parts of one of the sliding bases are in the shape of a round cylinder and the other sliding base. The two alignment portions are in the shape of circular grooves. When the two sliding seats are arranged, the two alignment portions in the shape of circular cylinders and the other two alignment portions in the shape of circular grooves. Phase fit. The pipe cutter structure according to claim 1, wherein the other end of the screw is provided with a non-circular first fitting portion, and a third combining portion is provided in the fitting portion, and the third combining portion is Screw holes, A second engaging portion is provided in the rotating member, the second engaging portion is engaged with the first engaging portion, and a fourth engaging portion is provided in the second engaging portion. It is relatively positive to the third joint, and the fourth joint is perforated. The screw assembly is provided with a second joint, and the second joint is threaded between the third joint and the rotating member. At the fourth joint portion, the screw is combined with the rotating member, and the second joint member is externally threaded. The pipe cutter structure according to claim 1, wherein one end of the rotating member is provided with a receiving chamber, the receiving chamber is in the shape of a circular groove; the screw group is provided with a cap, and the cap is provided in the The opening of the accommodating chamber of the rotating member closes the accommodating chamber. The pipe cutter structure according to claim 1, wherein the control member is accommodated at the receiving groove so that the receiving groove is closed. The pipe cutter structure according to claim 1, wherein the control member is provided with a bullet-receiving groove near the bottom end, and the elastic element is accommodated in the groove and the bullet-receiving groove of the body. The pipe cutter structure according to claim 1, wherein the pivot system can be integrated with the roller. The pipe cutter structure according to claim 1, wherein the first length of the second screwing portion of the control member is shorter than the length of the control member, that is, the internal thread of the second screwing portion is not Covered. The pipe cutter structure according to claim 1, wherein the first pivot hole system is two, the second pivot hole system of the two control members is not relatively positive, and the second pivot shaft system is two. Each second pivot hole of each control member is pivoted at each first pivot hole by each second pivot rod.