TWI908187B - Pipe cutter structure - Google Patents

Abstract

This invention relates to a pipe cutter structure, comprising: a main body having a first receiving groove, a first hub, a second receiving groove, two first connecting parts, and a first through groove; two roller assemblies being centrally located within the second receiving groove; a sliding assembly being disposed at the first receiving groove and capable of displacement within the first receiving groove, the sliding assembly being able to approach or move away from the roller assemblies; and a screw assembly including a rotating component. The device comprises a screw and a second coupling; the rotating component has a first engagement portion; the screw has a third pivot, a first screw engagement portion, and a second engagement portion; a control assembly is configured with the sliding assembly and the screw assembly, the control assembly is movable at the fifth receiving groove, the control assembly is pressable, and the control assembly protrudes from the first through groove and is located on both sides of the body, separate from the cutting wheel.

Description

Pipe cutter structure

This invention relates to all pipe fitting structures, and more particularly to a pipe cutter structure in which a sliding assembly moves within a first accommodating groove. The main body assembly and the sliding assembly are centrally located within a screw assembly, which in turn houses a control assembly. The assembly structure of the main body assembly, the sliding assembly, the screw assembly, and the control assembly is relatively precise.

As we know from previous studies, the commonly used pipe cutter structures, such as US Patent No. 6539634 and US Patent No. 11571755 B2, both utilize a seesaw structure. Figure 1 of 6539364 shows element 8; pressing the seesaw (e.g., element 8) separates the screw from the bolt, allowing element 2 to move quickly. Similarly, Figure 1 of 11571755 shows element 21; pressing the seesaw (e.g., element 21) separates the screw from the bolt, allowing element 5 to move.

US Patent 11571755 B2, same as Taiwan Patent No. 108136696, Certificate No.: I835881, Patent Title: Pipe Cutter, a pipe cutter (1) having an adjusting element (5) and a support (4) constructed on a C-shaped working head (3).

However, the shortcomings of this conventional pipe cutter structure lie in:

1. Release the latch between the gear section 26 of the locking element 21 and the receiving member 19. The cutting element 10 and the locking element 21 can slide within the slotted guide device 9. However, the locking element 21 uses a lever-like principle, i.e., a seesaw principle, to control the engagement between the gear section 26 and the receiving member 19. Therefore, the position of the shaft u of the locking element 21 is crucial. An error in the position of shaft u can easily cause misalignment in the engagement structure between the locking element 21 and the receiving member 19, resulting in inaccurate engagement.

2. The cutting element 10 is located on the same side as the locking element 21. If a finger accidentally slips while pressing the locking element 21, it may come into contact with the cutting element 10, causing injury.

In view of the shortcomings of the aforementioned conventional pipe cutter structures, the inventor, drawing upon years of experience in manufacturing, production, and design, has finally developed a pipe cutter structure that overcomes the drawbacks of conventional methods.

In conventional pipe cutter structures, the position of the shaft u of the engaging element is crucial. An error in the position of shaft u can easily cause misalignment in the engagement relationship between the engaging element and the receiving component, resulting in inaccurate engagement. In the pipe cutter structure of this invention, the control assembly uses linear displacement to control the engagement and disengagement of the second threaded part and the first threaded part. This allows for greater tolerance in the position of the fifth receiving groove. After the control assembly is housed in the fifth receiving groove, the screw assembly only needs to rotate slightly for the second threaded part to engage with the first threaded part, resulting in a more reliable engagement.

A pipe cutter structure includes: a main body having a first receiving groove, a first pivot, a second receiving groove, two first connecting parts, and a first through groove; two roller assemblies pivotally disposed within the second receiving groove; a sliding assembly disposed at the first receiving groove and movable within the first receiving groove, the sliding assembly being close to or away from the roller assemblies; a screw assembly including a rotating member, a screw, and a second connecting part; the rotating member having a first engaging part; the screw having a third pivot, a first threaded engagement part, and a second engaging part; and a control assembly disposed with the sliding assembly and the screw assembly, the control assembly being movable at the fifth receiving groove, the control assembly being pressable, and the control assembly protruding from the first through groove and disposed on opposite sides of the main body from the cutting rollers.

The device includes a sliding assembly that is displaced at the first receiving groove. The main body and the sliding assembly serve as the hub for the screw assembly. The sliding assembly further houses the control assembly. The assembly structure between the main body, the sliding assembly, the screw assembly, and the control assembly is relatively secure. The control assembly controls the engagement and disengagement of the second threaded part and the first threaded part by linear displacement. This allows for a larger tolerance in the position of the fifth receiving groove. After the control assembly is housed in the fifth receiving groove, the screw assembly only needs to rotate slightly for the second threaded part to engage with the first threaded part. The linear displacement control engagement relationship of the control assembly is relatively secure. The control unit uses linear displacement to control the engagement and disengagement of the second threaded part and the first threaded part. Therefore, for larger pipe cutter structures, the width of the fifth groove can be increased, allowing the control component to have a larger width. This means the second threaded part has more teeth to mesh with the first threaded part. Increasing or changing the width of the fifth groove and the control component can vary the number of meshing teeth, making it a structurally sound design.

To ensure that the committee members and those skilled in the art fully understand the effects of this invention, the structure and composition of this invention are described below with reference to the drawings and figures. However, the following description is merely for illustrating embodiments of this invention and is not intended to impose any limitations on this invention. Therefore, any modifications or alterations made within the spirit of this invention shall still fall within the scope of protection of this invention.

10: The Body

11: First Container

12: First sliding rail

13: First Pivot

14: Second container

15: First Union Section

16: First through slot

20: Roller Set

21: Roller Shaft

22: Roller

30: Sliding assembly

31: Sliding mount

311: Third Container

3111: Second pivot

312: Fourth Container

313: Fifth Container

315: Long Hole Groove

316: Second sliding rail

32: Cutting wheel

321: Knife section

33: Bearings

34: Cutting wheel shaft

341: Second Union Section

35: First joint

36: First Projectile

40: Screw assembly

41: Rotating Components

411: First Set of Combined Sections

42: Screw

421: Third Branch

422: First threaded part

423: Second Set of Combined Sections

424: The Third Union

425: Fourth Union Section

426: The Fifth Union Section

43: Second joint

50: Control Group

51: Pressing component

511: Sixth Container

512: Seventh Container

513: Third sliding rail

514: The Sixth Union Section

515: Eighth Container

52: Control components

521: Second threaded part

522: Fourth sliding rail

523: The Seventh Union Section

524: Bullet Capacity

53: Flexible element

54: Third joint

60: Fourth joint

61: Fifth Joining Component

Figure 1 is an exploded perspective view of the pipe cutter structure of this invention.

Figure 2 is a perspective view of the main body of the pipe cutter of this invention.

Figure 3 is an exploded perspective view of the roller assembly of the pipe cutter structure of this invention.

Figure 4 is an exploded perspective view of the sliding assembly of the pipe cutter structure of this invention.

Figure 5 is an exploded perspective view of the screw assembly of the pipe cutter structure of this invention.

Figure 6 is an exploded perspective view of the control assembly of the pipe cutter structure of this invention.

Figure 7 is a perspective view of the pressing component of the pipe cutter structure of this invention.

Figure 8 is a three-dimensional assembly diagram of the pipe cutter structure of this invention.

Figure 9 is a top view of the pipe cutter structure of this invention.

Figure 10 is a cross-sectional view along line A-A of Figure 9, which shows the structure of the pipe cutter of this invention.

Figure 11 is a cross-sectional view of the pipe cutter of the present invention in its first operating state, as shown in Figure 10.

Figure 12 is a cross-sectional view of the pipe cutter of the present invention in its second operating state, as shown in Figure 10.

Figure 13 is a cross-sectional view of the pipe cutter of this invention in its third operating state, as shown in Figure 10.

Figure 14 is an exploded perspective view of the sliding assembly of the second embodiment of the pipe cutter structure of the present invention.

Please refer to Figures 1 to 8. Figure 1 is an exploded perspective view of the pipe cutter structure of the present invention; Figure 2 is an exploded perspective view of the main body 10 of the pipe cutter structure of the present invention; Figure 3 is an exploded perspective view of the roller assembly 20 of the pipe cutter structure of the present invention; Figure 4 is an exploded perspective view of the sliding assembly 30 of the pipe cutter structure of the present invention; Figure 5 is an exploded perspective view of the screw assembly 40 of the pipe cutter structure of the present invention; Figure 6 is an exploded perspective view of the control assembly 50 of the pipe cutter structure of the present invention; Figure 7 is an exploded perspective view of the pressing element 51 of the pipe cutter structure of the present invention; and Figure 8 is an assembled perspective view of the pipe cutter structure of the present invention. The present invention relates to a pipe cutter structure, which includes: a main body 10, which is a slightly L-shaped shell, and the main body 10 is a one-piece molded structure. The main body 10 is a metal or plastic molded structure. The main body 10 has a first receiving groove 11 and two first slide rails 12. The two slide rails 12 communicate with the first receiving groove 11, and their lengths extend in the same direction as the first receiving groove 11. The two slide rails 12 are symmetrical relative to the first receiving groove 11 and are elongated grooves. One end of the main body 10 has a first pivot 13 located on one side of the first receiving groove 11 and communicating with it. The main body 10 also has a second receiving groove 14 located within the same section as the first pivot 13. At the end, the second receiving groove 14 and the first receiving groove 11 are connected in a slightly L-shape. The body 10 is provided with two first connecting parts 15, which are connected to the second receiving groove 14 and are perforated. The body 10 is provided with a first through groove 16, which is located on one side of the first receiving groove 11 and is connected to it. The first through groove 16 extends in the same direction as the first receiving groove 11 and is an elongated open groove. Two roller sets 20 are mounted in the second receiving groove 14. Each roller set 20 includes a roller shaft 21 and a roller 22. The roller shaft 21 is mounted in the second receiving groove 14. Within the first coupling portion 15, the roller shaft 21 is rod-shaped; the roller 22 is hinged to the roller shaft 21 and is hinged within the second receiving groove 14; A sliding assembly 30 is assembled at the first receiving groove 11 and is movable within the first receiving groove 11. The sliding assembly 30 is close to or away from the roller assembly 20, and the sliding assembly 30 includes… The system comprises a sliding seat 31, a shear wheel 32, a bearing 33, a shear wheel axle 34, and a first coupling 35. The sliding seat 31 is partially housed within the first receiving groove 11, and the sliding seat 31 is linearly displaced within the first receiving groove 11. One end of the sliding seat 31 is provided with a third receiving groove 311, which faces the second receiving groove 14. The groove 311 is provided with a second pivot 3111, which is in the shape of a through circular hole. The second pivot 3111 communicates with the third receiving groove 311. The sliding seat 31 is provided with a fourth receiving groove 312, which is aligned with the first pivot 13 and passes through the sliding seat 31. The other end of the sliding seat 31 is provided with a fifth receiving groove 313, which communicates with the fourth receiving groove 312 and is aligned with the position of the first through groove 16. The sliding seat 31 is provided with an elongated groove 315, which communicates with the fifth receiving groove 313. The upper and lower sides of the sliding seat 31 are provided with two second slide rails 3. 16. The two second slide rails 316 are slidably arranged with the two first slide rails 12, so that the sliding assembly 30 can slide linearly on the body 10. The two second slide rails 316 are elongated convex strips. The cutting wheel 32 is pivotally arranged in the third receiving groove 311. The cutting wheel 32 is in the shape of a circular blade. A blade portion 321 is provided on the outer periphery of the cutting wheel 32. 1. A cutting wheel 32 is positioned opposite the roller assembly 20 for cutting a pipe. The movement of the cutting wheel 32 involves its approach to and distance from the roller assembly 20. The bearing 33 is sleeved on the axis of the cutting wheel 32. The cutting conveyor shaft 34 passes through the second pivot 3111 and is pivoted with the cutting wheel 32 and the bearing 33, so that the cutting wheel 32 is pivoted in the third receiving groove 31. At point 1, the cutter shaft 34 has a T-shaped long rod cross-section. One end of the cutter shaft 34 has a second coupling portion 341, which is a concave annular groove. The first coupling member 35 is a slightly C-shaped buckle, which engages with the second coupling portion 341, thus pivoting the cutter shaft 34 at the second pivot portion 3111. Remove the... The first coupling 35 allows for the removal of the cutting wheel shaft 34, the bearing 33, and the cutting wheel 32; a screw assembly 40 is linked to the body 10 and the sliding assembly 30, and the screw assembly 40 includes a rotating member 41, a screw 42, and a second coupling 43; the rotating member 41 is mounted outside the body 10 and is for user use. The rotating component 41 has a first engagement portion 411, which is non-circular groove-shaped. The rotating component 41 rotates at the same end as the roller assembly 20, and is away from the cutting wheel 32. The screw 42 has a third pivot portion 421, which is pivoted to the first pivot portion 13. One end of the screw 42 has a first threaded portion 422, which is accommodated in the first receiving groove 11 and passes through the fourth receiving groove 312. The first threaded portion 422 and the fourth receiving groove 312 have a loose fit structure. The other end of the screw 42 has a second engagement portion 423, which is connected to the first engagement portion 423. The first and second fitting parts 411 are fitted together. The second fitting part 423 is shaped to match the first fitting part 411. Rotating the rotating part 41 drives the screw 42 to rotate synchronously. The second fitting part 423 has a third fitting part 424, which is an internally threaded hole. The end of the screw 42 has a fourth fitting part 425, which is located at the same end as the first screw fitting part 422. The fourth fitting part 425 is also an internally threaded hole. The screw 42 has a fifth fitting part 426, which is located between the third fitting part 421 and the first screw fitting part 422. The fifth fitting part 426 is an annular groove. The second fitting part 43 is an externally threaded rod. The second coupling 43 is threaded through the rotating member 41 and screwed onto the third coupling part 424, so that the rotating member 41 and the screw 42 rotate synchronously. A control assembly 50 is assembled with the sliding assembly 30 and the screw assembly 40. The control assembly 50 is housed in the fifth receiving groove 313 and can be displaced in the fifth receiving groove 313. Part of the control assembly 50 protrudes from the fifth receiving groove 313 and the first through groove 16 for the operator to press. The control assembly 50 protruding from the first through groove 16 is located on both sides of the body 10, separate from the cutting wheel 32. The control assembly 50 can drive the sliding assembly 30 to move linearly in the first receiving groove 11. The rotation of the screw assembly 40 can drive the control assembly 50. The control group 50 and the sliding group 30 are linearly displaced. The control group 50 includes a pressing member 51, a control member 52, an elastic element 53, and a third connecting member 54. The sliding group 30 is displaced within the body 10, and the control group 50 is displaced on the sliding group 30. The displacement direction of the control group 50 is perpendicular to the displacement direction of the sliding group 30. The pressing member 51 is housed in the fifth receiving groove 313, and partially protrudes from the fifth receiving groove 313 and the first through groove 16. The pressing member 51 has a sixth receiving groove 511 through which the screw 42 passes. One end of the pressing member 51 has a seventh receiving groove 512, which is an open groove. The pressing member 51 is provided with a third slide rail 513, which is located between the seventh receiving groove 512 and the sixth receiving groove 511. The third slide rail 513 is in the shape of vertically opposing grooves. The pressing member 51 is provided with a sixth connecting part 514, which extends vertically through the seventh receiving groove 512. The pressing member 51 is provided with an eighth receiving groove 515, which is located on one side of the sixth receiving groove 511. The pressing member 51 is in the shape of a non-circular block or a square block. The control member 52 is assembled with the pressing member 51 and is housed in the seventh receiving groove 512. One end of the control member 52 is provided with a second threaded part 521, which is connected to the first threaded part 42. The control component 52 is designed for two-way engagement. A fourth slide rail 522 is provided on both the upper and lower sides of the control component 52. This fourth slide rail 522 is compatible with the third slide rail 513 and is shaped like a convex strip. The control component 52 also has a seventh connecting part 523, which is aligned with the sixth connecting part 514 and is shaped like a through hole. The other end of the component 52 is provided with a spring groove 524, which is not connected to the second threaded portion 521. The control component 52 is non-circular. The elastic element 53 is housed in the spring groove 524, with one end of the elastic element 53 abutting against the spring groove 524 and the other end abutting against the bottom of the fifth groove 313. The second threaded portion 521 is subjected to the elastic element 53. The elastic force of the third joint pushes against and engages with the first screw portion 422. The elastic element 53 is a spring body. The third coupling 54 passes through the sixth coupling portion 514 and the seventh coupling portion 523. The end of the third coupling 54 protrudes into the elongated slot 315. The third coupling 54 is displaced within the elongated slot 315, so that the control assembly 50 is mounted on the sliding assembly 30 and can be displaced a distance. The screw assembly 40 restricts the control member 52, and the control member 52 further restricts the pressing member 51, so that the control assembly 50 is mounted on the sliding assembly 30 and does not disengage. The third coupling 54 assembles the pressing member 51 and the control member 52. The third coupling 54 is further restricted at the elongated slot 315. The control assembly 50 is mounted on the sliding assembly 30 and does not detach; that is, the control assembly 50 is constrained by the screw assembly 40 and the sliding assembly 30. The control assembly 50 has two restraining structures and does not protrude externally. When the control assembly 50 is pressed, the pressing member 51 and the control member 52 are displaced within the fifth receiving groove 313, and the elastic element 53 is compressed, causing the second screw engagement. Part 521 disengages from the first threaded part 422, allowing the control assembly 50 to be pushed, thereby displacing the sliding assembly 30 to adjust the distance between the cutting wheel 32 and the roller assembly 20. Releasing the control assembly 50 restores the elastic tension of the elastic element 53, causing the second threaded part 521 to engage with the first threaded part 422 and thereby positioning it; a fourth The fourth coupling 60 is a slightly C-shaped fastener. It is assembled with the fifth coupling 426 and rests slightly against the wall of the body 10. The third pivot 421 is constrained by the fourth coupling 60. The screw 42 is pivotally mounted within the body 10 and the sliding assembly 30. The rotating member 41 is further subjected to… Limited by the screw 42, the rotating member 41 is pivotally mounted outside the main body assembly 10, and the screw assembly 40 is pivotally mounted on the main body assembly 10 and the sliding assembly 30 for rotation; a fifth coupling member 61 is assembled at the fourth coupling portion 425, and the fifth coupling member 61 is designed to prevent the sliding assembly 30 from dislodging from the screw 42 when the sliding assembly 30 is displaced.

Please continue referring to Figure 9, which is a top view of the pipe cutter structure of the present invention. Figure 10 is a cross-sectional view along line A-A of Figure 9. The roller assembly 20 is assembled in the second receiving groove 14. The sliding assembly 30 is received in the first receiving groove 11 and can be linearly displaced in the first receiving groove 11. The screw 42 is pivoted in the first pivot 13 and the fourth receiving groove 312. The control assembly 50 is received in the fifth receiving groove 313 and can be displaced in the fifth receiving groove 313. The second threaded portion 521 is subjected to the elastic force of the elastic element 53. The screw assembly 50 engages with the first screw thread 422 upon contact with the first screw thread 422. The control assembly 50 moves linearly with the rotation of the first screw thread 422, causing the sliding assembly 30 to move linearly within the first receiving groove 11. This adjusts the distance between the cutting wheel 32 and the roller assembly 20 as desired by the user. The fourth coupling 60 is engaged with the fifth coupling 426. The screw assembly 40 is pivoted on the body 10 and the sliding assembly 30, rotating upon rotation of the rotating member 41. The third pivot 421 is restricted by the fourth coupling 60, allowing the screw 42 to rotate only on its own axis.

Please refer to Figures 11 to 13. Figures 11 to 13 are cross-sectional views along line A-A of the pipe cutter structure diagram 10 of the present invention, showing the first to third operating states. Pressing the control assembly 50 compresses the elastic element 53, disengaging the second threaded portion 521 from the first threaded portion 422. The operator can continue to press and push the control assembly 50, displacing the sliding assembly 30 to adjust the distance between the cutting roller 32 and the roller assembly 20. Releasing the pressure on the control assembly 50 restores the elastic tension of the elastic element 53, causing the second threaded portion 521 to engage with the first threaded portion 422 for positioning.

Please refer to Figure 14, which is an exploded perspective view of the sliding assembly 30 of a second embodiment of the pipe cutter structure of the present invention. In this embodiment, the second connecting portion 341 is a non-penetrating circular groove, and the first connecting member 35 is bead-shaped with a first elastic body 36. The first connecting member 35 and the first elastic body 36 are housed within the second connecting portion 341. The bead 35 abuts against the first elastic body 36 and the sliding seat 31, so that the cutting wheel 32 is pivotally mounted on the sliding seat 31. This embodiment's sliding assembly 30 facilitates easy replacement of the cutting wheel 32 when the blade 321 becomes dull due to long-term use.

In another embodiment of the invention, the pressing member 51 can be integrally formed with the control member 52. The integrally formed pressing member 51, control member 52, and elastic element 53 are first placed into the fifth receiving groove 313, and then the screw assembly 40 is placed in. The screw assembly 40 can prevent the control assembly 50 from detaching from the fifth receiving groove 313 and the first through groove 16, and the third connecting member 54 can be omitted, thus eliminating the need for the elongated slot 315.

The structural advantages of this pipe cutter are:

1. The sliding assembly 30 is provided, and the sliding assembly 30 is displaced at the first receiving groove 11. The main body 10 and the sliding assembly 30 are used to host the screw assembly 40, and the sliding assembly 30 further houses the control assembly 50. The assembly structure between the main body 10, the sliding assembly 30, the screw assembly 40, and the control assembly 50 is relatively solid.

2. The control assembly 50 uses linear displacement to control the engagement and disengagement of the second threaded portion 521 and the first threaded portion 422. This allows for greater tolerance in the position of the fifth receiving groove 313. After the control assembly 50 is housed in the fifth receiving groove 313, the screw assembly 40 only needs to rotate slightly for the second threaded portion 521 to engage with the first threaded portion 422. The linear displacement control of the control assembly 50 ensures a more reliable engagement relationship.

3. The control unit 50 uses linear displacement to control the engagement and disengagement of the second threaded portion 521 and the first threaded portion 422. Therefore, for larger pipe cutter structures, the width of the fifth groove 313 can be increased, allowing the control component 52 to have a larger width. This means the second threaded portion 521 has more teeth to engage with the first threaded portion 422. Increasing or changing the width of the fifth groove 313 and the control component 52 can vary the number of engaging teeth, making it a structurally sound design.

4. The control assembly 50 and the cutting wheel 32 are located on opposite sides of the main body 10. When pressing the control assembly 50, it is unlikely that the hand will come into contact with the cutting wheel 32, making the action of pressing the control assembly 50 safer.

5. When the shearing conveyor 32 is subjected to force, the force is directly borne by the sliding assembly 30. The sliding assembly 30, with its larger surface area, is combined with the main body assembly 10 and the screw assembly 40, thus providing better torque resistance.

6. The main body 10 and the sliding assembly 30 are interconnected; the sliding assembly 30 and the screw assembly 40 are also interconnected; and the screw assembly 40 and the main body 10 are also interconnected. Each pair of the main body 10, the sliding assembly 30, and the screw assembly 40 is interconnected, resulting in higher structural stability. This combination method is relatively simple.

7. The screw assembly 40 restricts the control assembly 50, which is further restricted at the elongated slot 315. That is, the control assembly 50 is restricted by both the screw assembly 40 and the sliding assembly 30. The control assembly 50 has two restrictive structures and does not detach from the external structure. Each pair of the sliding assembly 30, the screw assembly 40, and the control assembly 50 has a combination relationship, making the combination relationship between the three more secure.

8. Rotating the screw assembly 40 can drive the control assembly 50 to move the sliding assembly 30, thereby adjusting the distance between the cutting wheel 32 and the roller assembly 20. Alternatively, pressing the control assembly 50 can disengage the second threaded part 521 from the first threaded part 422. Continuing to press and push the control assembly 50 will cause it to move the sliding assembly 30, thus adjusting the distance between the cutting wheel 32 and the roller assembly 20. The pipe cutter structure of this invention has two different control mechanisms for adjusting the distance between the cutting wheel 32 and the roller assembly 20.

9. The fourth receiving groove 312 can host the first threaded portion 422, thus limiting the offset of the first threaded portion 422. The screw 42 generally has a length. The third pivot 421 is hosted on the first pivot 13, and the first threaded portion 422 is also hosted on the fourth receiving groove 312, thus the screw 42 has a better hosting structure.

10. The sliding assembly 30 can be pre-assembled with the control assembly 50 outside the main body 10, making the assembly of the sliding assembly 30 and the control assembly 50 more convenient, and then the sliding assembly 30 and the control assembly 50 can be inserted into the main body 10.

11. Since the screw assembly 40 is already prevented from dislodging from the first receiving groove 11, and with the first slide rail 12 and the second slide rail 316 provided, the sliding assembly 30 is further protected from dislodging from the first receiving groove 11.

Therefore, the pipe cutter structure of this invention possesses industrial applicability, novelty, and advancement, and thus meets the requirements for an invention patent application; therefore, this application is filed in accordance with the law.

10: The Body

20: Roller Set

21: Roller Shaft

22: Roller

30: Sliding assembly

40: Screw assembly

50: Control Group

60: Fourth joint

61: Fifth Joining Component

Claims (13)

A pipe cutter structure includes: a body having a first receiving groove inside; a first pivot being located at one end of the body and communicating with the first receiving groove; a second receiving groove located at the same end as the first pivot and communicating with the first receiving groove in a slightly L-shaped manner; and two first connecting portions being connected with the second receiving groove. The body has a first through slot, which is located on one side of the first receiving slot and communicates with it; two roller assemblies are centrally located within the second receiving slot; a sliding assembly is installed in the first receiving slot and can move within it, moving closer to or further away from the roller assemblies. The sliding assembly includes a sliding seat, a sliding wheel, and a sliding axle; the sliding seat is partially housed within the first receiving slot. The sliding seat is linearly displaced at the first receiving groove. One end of the sliding seat has a third receiving groove facing the second receiving groove and containing a second pivot. The sliding seat also has a fourth receiving groove aligned with the first pivot and penetrating the sliding seat. The other end of the sliding seat has a fifth receiving groove communicating with the fourth receiving groove and aligned with the position of the first through groove. A wheel assembly is pivotally located within the third receiving groove. The cutting wheel is a circular blade-shaped component with a cutting edge on its outer periphery for cutting a pipe. The cutting wheel is aligned with the roller assembly, and its movement involves approaching and moving away from the roller assembly. The cutting wheel shaft passes through the second pivot and is pivotally connected to the cutting wheel, thus pivoting the cutting wheel at the third receiving groove. A screw assembly is pivotally connected to the main body and the sliding assembly. The screw assembly includes a rotating component, a screw, and a first... Two connecting parts; the rotating part is pivotally mounted outside the main body, the rotating part is for rotation, the rotating part is provided with a first engagement portion, the rotating part is located at the same end as the roller assembly and rotates away from the cutting wheel; the screw is provided with a third pivot portion, the third pivot portion is pivotally mounted with the first pivot portion, one end of the screw is provided with a first threaded portion, the first threaded portion is received in the first receiving groove, the first threaded portion passes through the fourth receiving groove, and the other end of the screw is provided with a The second fitting is fitted onto the first fitting. Rotating the rotating member drives the screw to rotate synchronously. The second coupling ensures that the rotating member and the screw rotate synchronously. A control assembly is assembled with the sliding assembly and the screw assembly. The control assembly is housed in the fifth receiving groove and is movable within the fifth receiving groove. Part of the control assembly protrudes from the fifth receiving groove and the first through groove for pressing. A through slot is located on both sides of the main body, separate from the cutting wheel. The control assembly can drive the sliding assembly to move linearly at the first receiving slot. The rotation of the screw assembly can drive the control assembly and the sliding assembly to move linearly. The control assembly includes a pressing element, a control element, and an elastic element. The sliding assembly moves within the main body, and the control assembly moves on the sliding assembly. The displacement direction of the control assembly is perpendicular to the displacement direction of the sliding assembly. The pressing element is housed in the fifth receiving slot. Inside the groove, the pressing element partially protrudes from the fifth receiving groove and the first through groove. The pressing element has a sixth receiving groove for the screw to pass through. The control element is assembled with the pressing element, and one end of the control element has a second threaded portion that engages with the first threaded portion. The elastic element rests against the control element, and its other end rests against the bottom of the fifth receiving groove. The second threaded portion is pushed against by the elastic force of the elastic element and engages with the first threaded portion. The pipe cutter structure as described in claim 1 has a slightly L-shaped shell. The body is a one-piece molded structure, made of metal or plastic. The body has two first slide rails, both communicating with the first receiving groove. The length direction of the two first slide rails is the same as that of the first receiving groove. The two first slide rails are symmetrical relative to the first receiving groove and are elongated grooves. The two first joints are perforated. The first venting groove extends in the same direction as the first receiving groove and is an elongated open groove. The pipe cutter structure as described in claim 1, wherein each roller assembly includes a roller shaft and a roller; the roller shaft is pivotally mounted within the first coupling and is rod-shaped; the conveyor is pivotally mounted to the roller shaft, and the roller is pivotally mounted within the second receiving groove. As described in claim 2, the pipe cutter structure includes a second pivot that is a through-hole, communicating with the third receiving groove. The sliding seat has an elongated slot communicating with the fifth receiving groove. Two second slide rails are provided on the upper and lower sides of the sliding seat, slidingly engaging with two first slide rails to allow the sliding assembly to slide linearly along the body. The two second slide rails are elongated convex strips. As described in claim 1, the pipe cutter structure includes a sliding assembly with a bearing sleeved on the cutting shaft. A cutting wheel shaft passes through the second pivot and is pivotally connected to the cutting wheel and the bearing. The cutting wheel shaft has a T-shaped cross-section and a second engagement portion at one end, which is a recessed annular groove. The sliding assembly includes a first coupling, which is a slightly C-shaped snap ring that engages with the second engagement portion, thus pivoting the cutting wheel shaft at the second pivot. Removing the first coupling allows the removal of the cutting wheel shaft, the bearing, and the cutting wheel. As described in claim 1, the pipe cutter structure comprises: a first fitting portion that is not a circular groove; a loose fit between the first threaded portion and the fourth receiving groove; a second fitting portion that matches the shape of the first fitting portion; a third fitting portion within the second fitting portion, the third fitting portion being an internally threaded hole; a fourth fitting portion at the end of the screw rod, the fourth fitting portion being located at the same end as the first threaded portion, the fourth fitting portion also being an internally threaded hole; a fifth fitting portion between the third fitting portion and the first threaded portion, the fifth fitting portion being a concave annular groove; and a second connecting member that is an externally threaded rod, the second connecting member being threaded through the rotating member and screwed onto the third fitting portion. As described in claim 4, the pipe cutter structure includes a seventh receiving groove at one end of the pressing member, the seventh receiving groove being an open groove; a third slide rail disposed between the seventh receiving groove and the sixth receiving groove, the third slide rail being an upper and lower opposing groove; a sixth connecting portion extending vertically through the seventh receiving groove; and an eighth receiving groove disposed on one side of the sixth receiving groove. The pressing member is a non-circular block or a square block. The control member is housed within the seventh receiving groove, and a fourth slide rail is provided on both its upper and lower sides, the fourth slide rail being compatible with the third slide rail, the fourth slide rail being a convex strip. The control component has a seventh coupling portion, which is aligned with the sixth coupling portion and is a through hole. The other end of the control component has a spring-loaded groove, which is not connected to the second threaded portion. The control component is non-circular. An elastic element is housed within the spring-loaded groove, with one end abutting against the groove and the other end abutting against the bottom of the fifth groove. The elastic element is a spring. The control assembly has a third coupling component, which passes through the sixth and seventh coupling portions. The end of the third coupling component protrudes into the elongated slot and is displaced within the slot, allowing the control assembly to be mounted on the sliding assembly and displaced a certain distance. As described in claim 7, the pipe cutter structure includes a screw assembly that restricts the control member, which in turn restricts the pressing member, such that the control assembly is mounted on the sliding assembly and remains in place. A third coupling assembles the pressing member and the control member, and this third coupling is further restricted at the elongated slot. Thus, the control assembly is mounted on the sliding assembly and remains in place; that is, the control assembly is restricted by both the screw assembly and the sliding assembly, and the control assembly has two restrictive structures preventing it from protruding externally. As described in claim 1, in the pipe cutter structure, pressing the control assembly displaces the pressing element and the control element within the fifth receiving groove, compressing the elastic element to disengage the second threaded portion from the first threaded portion. Pushing the control assembly displaces the sliding assembly to adjust the distance between the cutting wheel and the roller assembly. Releasing the control assembly restores the elastic tension of the elastic element, causing the second threaded portion to engage with the first threaded portion. The pipe cutter structure as described in claim 6 includes a fourth coupling, which is a slightly C-shaped snap ring. This fourth coupling is assembled with the fifth coupling, which rests slightly against the wall of the main body. The third pivot is constrained by the fourth coupling. The screw is pivotally mounted within the main body and the sliding assembly. The rotating member is further constrained by the screw and pivotally mounted outside the main body assembly. The screw assembly rotates pivotally on the main body assembly and the sliding assembly. The pipe cutter structure as described in claim 6 includes a fifth coupling assembly disposed at the fourth coupling portion, the fifth coupling portion being designed to prevent the sliding assembly from disengaging from the screw when the sliding assembly is displaced. The pipe cutter structure as described in claim 5, wherein the second joint is a non-penetrating circular groove, the first joint is bead-shaped, and a first elastic body is provided therein. The first joint and the first elastic body are housed within the second joint, and the bead rests between the first elastic body and the sliding seat, so that the cutting wheel is mounted on the sliding seat. As described in claim 1, in the pipe cutter structure, the pressing element is integrally formed with the control element. The integrally formed pressing element, the control element, and the elastic element are first placed into the fifth receiving groove, and then the screw assembly is placed in. The screw assembly prevents the control assembly from detaching from the fifth receiving groove and the first through groove.