Method for rapidly switching clamping and cutting functions of pipe cutter

Abstract

The invention discloses a method for quickly switching the clamping and cutting functions of a pipe cutter, when the clamping function is used, the tail end of a movable clamp is connected with the top end of a movable handle, and a cutting blade and the movable clamp move together to clamp different pipelines; when the cutting function is used, the tail end of the movable clamp is separated from the top end of the movable handle, the cutting blade rotates out of the inner side of the movable clamp, the inner side of the cutting blade can be inserted into the double-layer arc-shaped clamping jaw, and complete cutting of a pipeline is achieved. In a non-working state, the tail end of the movable clamp is connected with the top end of the movable handle, the fixed handle and the movable handle are closed, the cutting blade is completely wrapped in the movable clamp, the movable clamp is inserted into the double-layer arc-shaped clamping jaw, the movable handle is locked by a lock catch on the fixed handle, and the pipe cutting knife is kept in a closed state. The device is reasonable in design, safe, reliable and convenient to use. The structure of the movable clamp and the cutting blade is ingeniously combined, the clamping function and the cutting function are combined, and rapid switching can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field related to cutting tools, and in particular to a method for quickly switching the clamping and cutting functions of a pipe cutting tool. Background Art

[0002] There is a lack of dedicated plastic pipe safety clamps on the market, and workers often use pliers and needle-nosed pliers to clamp, which has low reliability. In addition, during the installation and heating and splicing of plastic pipes, directly picking them up with hands will inevitably cause bumps and burns, which is unsafe. Existing pipe cutter products on the market have single functions. When performing plastic pipe splicing operations, the pipe cutter must be used in conjunction with the clamp, and frequent tool changes make the operation more cumbersome. To solve the above problems, we propose a pipe cutter with stable switching between clamping and cutting functions and a quick switching method. Summary of the invention

[0003] In order to improve the common pipe cutter, increase the working function and simplify the use, a method for quickly switching the clamping and cutting function of the pipe cutter is provided.

[0004] The purpose of the present invention is to provide a pipe cutter with convenient and stable switching between clamping and cutting functions, aiming to improve the safety and stability during use. The present invention satisfies both clamping and cutting work requirements at the same time, thereby improving work efficiency.

[0005] The present invention provides the following technical solutions: A method for quickly switching the clamping and cutting function of a pipe cutter, wherein the pipe cutter of the method comprises a movable handle and a fixed handle; the fixed handle is a double-layer structure and has an arc-shaped clamping claw connected integrally at the top and a lock buckle at the end; A cutting blade is fixed to the top of the movable handle and a movable clip is wrapped around the outer side of the cutting blade, and the end of the movable clip is connected to the top of the movable handle via a clamping mechanism; The movable clamp, the cutting blade and the fixed handle are rotatably connected; The switching method comprises: Step 1: When using the clamping function, the end of the movable clamp is connected to the top of the movable handle through the snap-fit ​​mechanism, the cutting blade is completely covered in the movable clamp, the movable handle is pressed, the cutting blade and the movable clamp move together, and a double-layer arc-shaped clamping claw can be inserted into the inner side of the movable clamp to achieve clamping of different pipes; Step 2: When using the cutting function, the end of the movable clamp is separated from the top of the movable handle through the locking mechanism, and the cutting blade rotates out from the inside of the movable clamp. The inside of the cutting blade can be inserted into the double-layer arc-shaped clamping claw to achieve complete cutting of the pipe; Step three, when not in working state, the end of the movable clamp is connected to the top of the movable handle through the locking mechanism, the fixed handle and the movable handle are closed together, the cutting blade is completely covered in the movable clamp and the movable clamp is inserted into the double-layer arc-shaped clamping claw, the lock on the fixed handle locks the movable handle, and the pipe cutter remains in a closed state, thereby improving safety and reliability.

[0006] The fixed handle is a double-layer structure. When the clamping or cutting function is used, the inner side of the movable clamp or cutting blade can enter the arc-shaped clamping claw, which is convenient for clamping pipes of different diameters or completely cutting the pipes. The pipe cutter is composed of the upper fixed handle (i.e., the upper arc-shaped clamping claw), the upper movable clamp, the cutting blade, the lower movable clamp, and the lower fixed handle (i.e., the lower arc-shaped clamping claw) from the outside to the inside.

[0007] Furthermore, the engaging mechanism includes a limiting groove arranged at the end of the movable clamp, a sliding groove at the top of the movable handle, and a push button arranged in the sliding groove; pushing the push button realizes the connection or separation of the movable clamp and the movable handle.

[0008] Furthermore, the movable clamp is provided with anti-slip teeth on the inner side to increase the friction between the movable clamp and the pipe, making it easier to clamp; a notch corresponding to the rotation path of the cutting blade is provided below the anti-slip teeth on the inner side of the movable clamp, making it easier for the cutting blade to rotate out of the covering of the movable clamp for cutting.

[0009] The outer end of the movable clamp has an additional circular structure with a radius of 5.2 mm. A limit pin is provided on the circular structure. The setting of the limit pin prevents the movable clamp from rotating arbitrarily and hindering work.

[0010] Furthermore, in the step 2, the cutting blade rotates out from the inner side of the movable clamp, and when the cutting blade touches the limit pin, the cutting blade and the movable clamp rotate together at an angle of 45 degrees until the cutting blade completes the cutting work.

[0011] Furthermore, the cutting blade end is inserted into the movable handle from the top of the movable handle and fixedly connected to the movable handle through rivet B. The movable clamp, the cutting blade and the fixed handle are rotatably connected through rivet A, and the movable handle can drive the movable clamp and the cutting blade to rotate around rivet A.

[0012] Furthermore, the limit groove is opened at the end of the movable clamp 6mm away from the inner side, and the limit groove is 8.5mm long, 6.2mm wide, and 1.5mm deep; the slide groove is opened at the top of the movable handle 6mm away from the inner side, and the slide groove is 17.5mm long, 6.2mm wide, and 1.5mm deep. When the clamping function is used, the push button is located in the limit groove and the slide groove, and the movable clamp is connected to the movable handle; when the cutting function is used, the push button is located in the slide groove, and the movable clamp is separated from the movable handle.

[0013] The present invention is reasonably designed, safe, reliable and easy to use. The present invention is a stable pipe cutter that can switch between clamping and cutting. The present invention cleverly combines the movable clamp and the cutting blade structure, combines the clamping and cutting functions and can achieve rapid switching. The end of the movable clamp and the movable handle can be easily separated or connected. Thus, the present invention has two motion states: separate motion or joint motion.

[0014] When the tool is not in working state, the fixed handle and the movable handle are put together, the lock on the fixed handle locks the movable handle, the fixed handle and the movable handle remain in a closed state, and the tool remains in a stable closed state, thereby improving safety and reliability. When the movable clamp and the cutting blade move together and clamp the target, the anti-slip teeth on the inner edge of the movable clamp contact the target, which can increase the friction between the target and the movable clamp, and the target is not easy to be separated from between the arc-shaped clamp and the movable clamp, so that it is more stable and reliable when clamping the target. When the movable clamp is separated from the movable handle and the target is cut, the cutting blade can enter the double-layer structure of the arc-shaped clamp to achieve a thorough cutting of the target. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of assembling the movable handle and the cutting blade of the present invention; Figure 3 It is a structural schematic diagram of the movable clamp and the limit pin of the present invention; Figure 4 It is a structural schematic diagram of the fixed handle of the present invention; In the figure: 1. movable handle; 2. fixed handle; 3. movable clamp; 4. cutting blade; 5. push button; 6. limit pin; 7. lock; 8. rivet A; 9. rivet B; 10. limit groove; 11. slide groove; 12. anti-slip teeth; 13. notch. DETAILED DESCRIPTION

[0016] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0017] like Figure 1-4 As shown, a method for quickly switching the clamping and cutting function of a pipe cutter, the pipe cutter of the method comprises a movable handle 1 and a fixed handle 2; the fixed handle 2 is a double-layer structure and its top end is an integrally connected arc-shaped clamping claw, and a lock buckle 7 is provided at the end; A cutting blade 4 is fixed to the top of the movable handle 1 by a number of rivets B9, and a movable clamp 3 is covered on the outside of the cutting blade 4. The end of the movable clamp 3 is connected to the top of the movable handle 1 via a clamping mechanism; the clamping mechanism includes a limiting groove 10 arranged at the end of the movable clamp 3, a sliding groove 11 at the top of the movable handle 1, and a push button 5 arranged in the sliding groove 11; pushing the push button 5 realizes the connection or separation of the movable clamp 3 and the movable handle 1.

[0018] The limiting groove 10 is opened at the end of the movable clamp 3 at 6 mm away from the inner edge, and the limiting groove 10 is 8.5 mm long, 6.2 mm wide, and 1.5 mm deep; the sliding groove 11 is opened at the top of the movable handle 1 at 6 mm away from the inner edge, and the sliding groove 11 is 17.5 mm long, 6.2 mm wide, and 1.5 mm deep.

[0019] The movable clamp 3 is provided with anti-skid teeth 12 on the inner side and a notch 13 is provided below the anti-skid teeth 12 to facilitate the cutting blade 4 to rotate out; the movable clamp 3 is provided with a limit pin 6 on the outer side.

[0020] The movable clamp 3, the cutting blade 4 and the fixed handle 2 are rotatably connected via rivets A8; The switching method comprises: Step 1: When using the clamping function, push the push button 5 to connect the end of the movable clamp 3 with the top of the movable handle 1, and the cutting blade 4 is completely covered in the movable clamp 3. Press the movable handle 1, and the cutting blade 4 and the movable clamp 3 move together. The inner side of the movable clamp 3 can be inserted with a double-layer arc-shaped clamping claw to achieve clamping of different pipes; Step 2: When using the cutting function, the end of the movable clamp 3 is separated from the top of the movable handle 1 by pressing the push button 5, and the cutting blade 4 rotates out from the inside of the movable clamp 3. When the cutting blade 4 touches the limit pin 6, the cutting blade 4 and the movable clamp 3 rotate together at an angle of 45 degrees, and the double-layer arc-shaped clamping claw can be inserted into the inside of the cutting blade 4 to achieve complete cutting of the pipe; Step 3. When not in operation, push the push button 5 to connect the end of the movable clamp 3 with the top of the movable handle 1, close the fixed handle 2 and the movable handle 1, the cutting blade 4 is completely covered in the movable clamp 3 and the movable clamp 3 is inserted into the double-layer arc-shaped clamping claw, the lock buckle 7 on the fixed handle 2 locks the movable handle 1, and the pipe cutter remains in a closed state.

[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for quickly switching the clamping and cutting function of a pipe cutter, characterized in that: The pipe cutter of the method comprises a movable handle (1) and a fixed handle (2); the fixed handle (2) is a double-layer structure and has an arc-shaped clamping claw connected integrally at the top and a lock buckle (7) at the end; A cutting blade (4) is fixed to the top of the movable handle (1), and a movable clamp (3) is wrapped around the outside of the cutting blade (4), and the end of the movable clamp (3) is connected to the top of the movable handle (1) via a clamping mechanism; The movable clamp (3), the cutting blade (4) and the fixed handle (2) are rotatably connected; The switching method comprises: Step 1: When using the clamping function, the end of the movable clamp (3) is connected to the top of the movable handle (1) through the locking mechanism, and the cutting blade (4) is completely covered in the movable clamp (3). The movable handle (1) is pressed, and the cutting blade (4) and the movable clamp (3) move together. The inner side of the movable clamp (3) can be inserted with a double-layer arc-shaped clamping claw to achieve clamping of different pipes; Step 2: When using the cutting function, the end of the movable clamp (3) is separated from the top of the movable handle (1) through the locking mechanism, and the cutting blade (4) is rotated out from the inside of the movable clamp (3). The inner side of the cutting blade (4) can be inserted into the double-layer arc-shaped clamping claw to achieve complete cutting of the pipe; Step 3: When not in operation, the end of the movable clamp (3) is connected to the top of the movable handle (1) through the locking mechanism, the fixed handle (2) and the movable handle (1) are brought together, the cutting blade (4) is completely covered in the movable clamp (3) and the movable clamp (3) is inserted into the double-layer arc-shaped clamping claw, the lock buckle (7) on the fixed handle (2) locks the movable handle (1), and the pipe cutter remains in a closed state.

2. The method according to claim 1, characterized in that The engaging mechanism comprises a limiting groove (10) arranged at the end of the movable clamp (3), a sliding groove (11) at the top of the movable handle (1), and a push button (5) arranged in the sliding groove (11); the movable clamp (3) and the movable handle (1) are connected or separated by pushing the push button (5).

3. The method according to claim 1, characterized in that The movable clamp (3) is provided with anti-slip teeth (12) on the inner side and a notch (13) is provided below the anti-slip teeth (12) to facilitate the cutting blade (4) to rotate out; and a limit pin (6) is provided on the outer side of the movable clamp (3).

4. The switching method according to claim 3, characterized in that: In the second step, the cutting blade (4) rotates out from the inside of the movable clamp (3), and when the cutting blade (4) touches the limit pin (6), the cutting blade (4) and the movable clamp (3) rotate together at an angle of 45 degrees until the cutting blade (4) completes the cutting work.

5. The method according to claim 1, characterized in that: The end of the cutting blade (4) is fixedly connected to the top of the movable handle (1) via a plurality of rivets B (9); the movable clamp (3), the cutting blade (4) and the fixed handle (2) are rotatably connected via rivets A (8).

6. The method according to claim 2, characterized in that The limiting groove (10) is formed at the end of the movable clamp (3) at a distance of 6 mm from the inner side, and the limiting groove (10) is 8.5 mm in length, 6.2 mm in width, and 1.5 mm in depth; the sliding groove (11) is formed at the top of the movable handle (1) at a distance of 6 mm from the inner side, and the sliding groove (11) is 17.5 mm in length, 6.2 mm in width, and 1.5 mm in depth.

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