Plastic pipe chamfering device

Abstract

The utility model relates to the technical field of plastic processing, and discloses a plastic pipe chamfering device which comprises a base and a blade, a first arc-shaped limiting part is arranged on one side of the bottom face of the base, and a plurality of second arc-shaped limiting parts are arranged on the bottom face of the base corresponding to large-size gears with different pipe diameters. A second arc-shaped limiting part corresponding to the pipe diameter size gear is selected to be matched with the first arc-shaped limiting part to place a plastic pipe to be chamfered, and the blade and the bottom face of the base form an angle of 0-90 degrees and is installed on one side of the base. A tool passing hole is formed in the connecting position of the face, facing the second arc-shaped limiting part, of the first arc-shaped limiting part and the bottom face of the base, and the cutting face of the blade is exposed out of the tool passing hole. And after one circle of rotation, the cutting surface cuts out a chamfer at the end part of the plastic pipe. The design is suitable for plastic pipes with different sizes and specifications, and is simple in structure and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic processing, in particular to a plastic pipe chamfering device. Background Art

[0002] Chamfering tools are a common tool used extensively for processing the edges and corners of plastic pipes, aiming to remove sharp edges, prevent cuts, enhance aesthetics, and improve assembly precision. However, current chamfering tools on the market often suffer from complex designs, making them difficult to use and incompatible with plastic pipes of various sizes and specifications, severely impacting their efficiency and applicability.

[0003] Therefore, providing a plastic pipe chamfering device that solves the above problems has become an issue that needs to be addressed urgently. Utility Model Content

[0004] The main purpose of the utility model is to provide a plastic pipe chamfering device, aiming to solve the technical problems that the chamfering device is complex in design, difficult to use and cannot be applied to plastic pipes of various sizes and specifications.

[0005] To achieve the above-mentioned purpose, the present invention provides a plastic pipe chamfering device, including a base and a blade, a first arc-shaped limit portion is provided on one side of the bottom surface of the base, and a plurality of second arc-shaped limit portions are provided on the bottom surface of the base corresponding to different large-size gears of pipe diameters. The second arc-shaped limit portions corresponding to the pipe diameter size gears are selected to cooperate with the first arc-shaped limit portion to place the plastic pipe to be chamfered, and the blade is installed on one side of the base at an angle of 0°-90° to the bottom surface of the base. A knife hole is provided at the connection between the side of the first arc-shaped limit portion facing the second arc-shaped limit portion and the bottom surface of the base, and the cutting surface of the blade exposes the knife hole. When in use, the plastic pipe to be chamfered is rotated after the plastic pipe to be chamfered is placed. After one rotation, the cutting surface cuts out the chamfer of the end of the plastic pipe.

[0006] Preferably, it also includes a knob adjustment component, which includes a knob and a supporting screw. A limiting groove is provided on the side of the first arc-shaped limiting portion facing the second arc-shaped limiting portion. The knob is fixedly arranged on the top of the supporting screw. The supporting screw body is threadedly connected to the base. The bottom of the supporting screw is movably arranged in the limiting groove. The bottom surface of the supporting screw is pressed against the end face of the plastic pipe to be chamfered. When in use, the knob is rotated to drive the supporting screw to lift the plastic pipe to be chamfered, adjust the contact area between the plastic pipe to be chamfered and the cutting surface, and then adjust the chamfer size.

[0007] Preferably, a knife mounting groove communicating with the knife hole is provided on one side of the base, the bottom surface of the knife mounting groove is at an angle of 0°-90° with the bottom surface of the base, and the blade is arranged in the knife mounting groove.

[0008] Preferably, the side surface of the knife installation is provided with a material return groove for discharging waste materials after cutting the plastic pipe, and the material return groove is connected to the knife hole.

[0009] Preferably, one side or both sides of the base are provided with grabbing arc grooves.

[0010] Preferably, a rotation connection groove for mounting a connecting rod for outputting torque is provided on the top surface of the base, and the base is rotated by transmitting torque through the rotation connection groove.

[0011] Preferably, the rotating connecting groove includes a square matching groove and an arc-shaped clamping groove, and the four arc-shaped clamping grooves are respectively arranged at the connection between the two surfaces of the square matching groove.

[0012] Preferably, the curvature radius of the first arc-shaped limiting portion is greater than or equal to the curvature radius of the second arc-shaped limiting portion.

[0013] Preferably, the curvature radius of the first arc-shaped limiting portion is 4 inches.

[0014] Preferably, the curvature radius of the second arc-shaped limiting portion is 0.5-4 inches.

[0015] In the technical solution provided by the utility model, during use, the second arc-shaped limiting portion of the corresponding size specification is selected according to the diameter of the plastic pipe to cooperate with the first arc-shaped limiting portion to ensure that the plastic pipe can be firmly placed on the base. After placement, the plastic pipe is rotated one circle relative to the cutting surface to complete the chamfering cutting. This design is suitable for plastic pipes of different sizes and specifications, and has a simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the plastic pipe chamfering device of the utility model;

[0018] Figure 2 This is a left side structural schematic diagram of an embodiment of the plastic pipe chamfering device of the present utility model;

[0019] Figure 3 This is a bottom view of the structure of an embodiment of the plastic pipe chamfering device of the utility model;

[0020] Figure 4 This is a schematic top view of an embodiment of the plastic pipe chamfering device of the present invention;

[0021] Figure 5 When the knob adjustment component of the plastic pipe chamfering device of the utility model is adjusted to the upper limit Figure 4 Cross-sectional view at point A;

[0022] Figure 6 When the knob adjustment component of the plastic pipe chamfering device of the utility model is adjusted to the lower limit Figure 4 Cross-sectional view at point A.

[0023] In the figure: 1. Base; 11. First arc-shaped limiting portion; 111. Cutting hole; 112. Limiting groove; 12. Second arc-shaped limiting portion; 13. Cutting groove; 131. Material withdrawal groove; 14. Grasping arc-shaped groove; 15. Rotating connecting groove; 151. Square matching groove; 152. Arc-shaped clamping groove; 2. Blade; 21. Cutting surface; 3. Knob adjustment assembly; 31. Knob; 32. Support screw; 4. Plastic pipe. DETAILED DESCRIPTION

[0024] To facilitate understanding of the present invention, the present invention is described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element, or one or more elements can be interposed therebetween. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more elements can be interposed therebetween. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only. In the description of the present invention, the terms "first" and "second" are used solely for descriptive purposes and are not to be construed as indicating relative importance or implicitly specifying the number of technical features indicated. Therefore, unless otherwise specified, features specified as "first" or "second" may explicitly or implicitly include one or more of such features; "plurality" means two or more. The term "comprising" and any variations thereof are intended to be non-exclusive, and one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0025] In addition, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. All technical and scientific terms used in this specification have the same meaning as those commonly understood by technicians in the technical field of this utility model. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not used to limit the utility model. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0026] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] Please refer to Figures 1 to 4 The utility model provides a chamfering device for a plastic pipe 4, comprising a base 1 and a blade 2. A first arc-shaped limiting portion 11 is provided on one side of the bottom surface of the base 1, and a plurality of second arc-shaped limiting portions 12 are provided on the bottom surface of the base 1 corresponding to large-size gears of different pipe diameters. The second arc-shaped limiting portion 12 corresponding to the pipe diameter size gear is selected to cooperate with the first arc-shaped limiting portion 11 to place the plastic pipe 4 to be chamfered. The blade 2 is installed on one side of the base 1 at an angle of 0°-90° to the bottom surface of the base 1. A through-knife hole 111 is provided at the connection between the side of the first arc-shaped limiting portion 11 facing the second arc-shaped limiting portion 12 and the bottom surface of the base 1. The cutting surface 21 of the blade 2 is exposed at the through-knife hole 111. When in use, after the plastic pipe 4 to be chamfered is placed, the plastic pipe 4 or the base 1 is rotated. After one rotation, the cutting surface 21 cuts out the chamfer of the end of the plastic pipe 4.

[0028] In the technical solution provided by the present invention, during use, the second arc-shaped limiting portion 12 of corresponding size and specification is selected according to the diameter of the plastic pipe 4 to cooperate with the first arc-shaped limiting portion 11 to ensure that the plastic pipe 4 can be firmly placed on the base 1. After placement, the plastic pipe 4 is rotated one circle relative to the cutting surface 21 to complete the chamfering cutting. This design is suitable for plastic pipes of different sizes and specifications, and has a simple structure and is easy to use.

[0029] Please refer to Figures 1 to 6In this embodiment, a knob adjustment assembly 3 is also included. The knob adjustment assembly 3 includes a knob 31 and a supporting screw 32. A limiting groove 112 is provided on the side of the first arc-shaped limiting portion 11 facing the second arc-shaped limiting portion 12. The knob 31 is fixedly arranged at the top of the supporting screw 32. The supporting screw 32 body is threadedly connected to the base 1. The bottom of the supporting screw 32 is movably arranged in the limiting groove 112. The bottom surface of the supporting screw 32 presses against the end face of the plastic pipe to be chamfered. When in use, the knob 31 is rotated to drive the supporting screw 32 to lift the plastic pipe 4 to be chamfered, adjust the contact area between the plastic pipe 4 to be chamfered and the cutting surface 21, and then adjust the chamfer size. The knob 31 is rotated counterclockwise to adjust the chamfer size from small to large. Figure 5 The middle is the upper limit of the minimum chamfer cutting. Figure 6 The middle is the lower limit of the maximum chamfer cutting, and the ideal size can be adjusted according to actual application.

[0030] Please refer to Figures 3 and 4 In this embodiment, a blade mounting groove 13 is provided on one side of the base 1 and is connected to the blade hole 111. The bottom surface of the blade mounting groove 13 is at a 0°-90° angle with the bottom surface of the base 1, and the blade 2 is disposed in the blade mounting groove 13. The blade 2 can be more securely mounted in the blade mounting groove 13 by fasteners such as screws, and the blade 2 will not fall off during the chamfering process.

[0031] Please refer to Figures 1 to 4 In this embodiment, a material return chute 131 is provided on the side of the cutter mounting for discharging waste material generated after cutting the plastic pipe 4. The material return chute 131 is connected to the cutter hole 111. The main function of the material return chute 131 is to discharge the waste material generated after cutting the plastic pipe 4. The material return chute 131 is connected to the cutter hole 111 to ensure that the waste material can be discharged smoothly and does not accumulate inside the device.

[0032] Please refer to Figures 3 and 4 In this embodiment, a grabbing arc groove 14 is provided on one side or both sides of the base 1, which conforms to the ergonomic design and is convenient for the user to grab and move the chamfering device.

[0033] Please refer to Figures 1 to 6 In this embodiment, the top surface of the base 1 is provided with a rotational connection slot 15 for mounting a torque-output connecting rod. This rotational connection slot 15 transmits torque to rotate the base 1. This rotational connection slot 15 transmits torque to rotate the base 1, thereby adjusting the cutting direction or enabling continuous cutting operations. The rotational connection slot 15 includes a square mating slot 151 and an arcuate clamping slot 152. Four arcuate clamping slots 152 are located at the junction of the two surfaces of the square mating slot 151.

[0034] Please refer to Figure 3In this embodiment, the radius of curvature of the first curved stopper 11 is greater than or equal to the radius of curvature of the second curved stopper 12. The radius of curvature of the first curved stopper 11 is 4 inches, and the radius of curvature of the second curved stopper 12 is 0.5-4 inches. From left to right, the second curved stopper 12 is adapted to plastic pipes 4 with outer diameters of 0.5 inches, 0.75 inches, 1 inch, 1.25 inches, 1.5 inches, 2 inches, 2.5 inches, 3 inches, and 4 inches.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the idea of ​​the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above. For the sake of simplicity, they are not provided in detail. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field should understand that it is still possible to modify the technical solutions recorded in the above embodiments, or to make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A plastic pipe chamfering device, comprising a base (1) and a blade (2), characterized in that: A first arc-shaped limiting portion (11) is provided on one side of the bottom surface of the base (1), and a plurality of second arc-shaped limiting portions (12) are provided on the bottom surface of the base (1) corresponding to different pipe diameter large size gears. The second arc-shaped limiting portion (12) corresponding to the pipe diameter size gear is selected to cooperate with the first arc-shaped limiting portion (11) to place the plastic pipe (4) to be chamfered. The blade (2) is installed on one side of the base (1) at an angle of 0°-90° with the bottom surface of the base (1). A knife hole (111) is provided at the connection between the side of the first arc-shaped limiting portion (11) facing the second arc-shaped limiting portion (12) and the bottom surface of the base (1). The cutting surface (21) of the blade (2) exposes the knife hole (111). When in use, after the plastic pipe (4) to be chamfered is placed, the plastic pipe (4) or the base (1) is rotated. After one rotation, the cutting surface (21) cuts out the chamfer of the end of the plastic pipe (4).

2. The plastic pipe chamfering device according to claim 1, characterized in that: The utility model also includes a knob adjustment component (3), wherein the knob adjustment component (3) includes a knob (31) and a supporting screw (32), a limiting groove (112) is provided on a side of the first arc-shaped limiting portion (11) facing the second arc-shaped limiting portion (12), the knob (31) is fixedly arranged on the top of the supporting screw (32), the supporting screw (32) body is threadedly connected to the base (1), the bottom of the supporting screw (32) is movably arranged in the limiting groove (112), the bottom surface of the supporting screw (32) is pressed against the end face of the plastic pipe to be chamfered, and when in use, the knob (31) is rotated to drive the supporting screw (32) to lift the plastic pipe to be chamfered (4), adjust the contact area between the plastic pipe to be chamfered (4) and the cutting surface (21), and thus adjust the chamfer size.

3. The plastic pipe chamfering device according to claim 2, characterized in that: A knife mounting groove (13) communicating with the knife hole (111) is provided on one side of the base (1), the bottom surface of the knife mounting groove (13) and the bottom surface of the base (1) are at an angle of 0°-90°, and the blade (2) is arranged in the knife mounting groove (13).

4. The plastic pipe chamfering device according to claim 3, characterized in that: The side surface of the knife installation is provided with a material return groove (131) for discharging waste material after cutting the plastic pipe (4), and the material return groove (131) is communicated with the knife hole (111).

5. The plastic pipe chamfering device according to claim 4, characterized in that: One side or both sides of the base (1) are provided with a grabbing arc groove (14).

6. The plastic pipe chamfering device according to claim 5, characterized in that: The top surface of the base (1) is provided with a rotation connection groove (15) for installing a connecting rod for outputting torque, and the base (1) is rotated by transmitting torque through the rotation connection groove (15).

7. The plastic pipe chamfering device according to claim 6, characterized in that: The rotating connection groove (15) comprises a square matching groove (151) and an arc-shaped clamping groove (152), and the four arc-shaped clamping grooves (152) are respectively arranged at the connection between the two surfaces of the square matching groove (151).

8. The plastic pipe chamfering device according to claim 1, characterized in that: The curvature radius of the first arc-shaped limiting portion (11) is greater than or equal to the curvature radius of the second arc-shaped limiting portion (12).

9. The plastic pipe chamfering device according to claim 8, characterized in that: The curvature radius of the first arc-shaped limiting portion (11) is 4 inches.

10. The plastic pipe chamfering device according to claim 8 or 9, characterized in that: The curvature radius of the second arc-shaped limiting portion (12) is 0.5-4 inches.

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