Pipeline tapper capable of drilling smoothly

Abstract

The utility model discloses a pipeline tapper capable of drilling smoothly, which relates to the technical field of tappers and comprises a cutting knife, a drill bit and a connecting shaft, a first spring is sleeved on the drill bit, the cutting knife is fixedly mounted on the connecting shaft, the drill bit is fixedly mounted below the connecting shaft, and a chip removal component is arranged inside the cutting knife. The chip removal assembly comprises a guide plate, an uneven plate and a movable plate, the guide plate is arranged above the uneven plate, the uneven plate is fixedly installed on the connecting shaft, an inserting rod is annularly and fixedly inserted into the guide plate, a guide sleeve is annularly arranged at the upper end of an inner cavity of the cutting knife, the inserting rod is movably inserted into the guide sleeve, and a second spring is arranged in the guide sleeve; the second spring is arranged above the inserting rod, and a spherical protruding head is fixedly installed below the inserting rod and makes movable contact with the uneven plate. According to the scheme, through the arrangement of the chip removal assembly, chip removal operation can be facilitated, and the fluency of continuous drilling is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hole openers, in particular to a pipeline hole opener with smooth drilling capabilities. Background Art

[0002] A pipeline is a device connected by pipes, pipe connectors and valves for transporting gas, liquid or fluid with solid particles. Pipelines play an important role in water supply, drainage, heat supply, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering, etc.

[0003] When drilling a pipe, the cylindrical cutter embeds the removed material. A return spring exerts a certain amount of force on this material, allowing it to be expelled. However, due to the limited force of the return spring, effective waste expulsion is difficult to guarantee, which in turn affects the smoothness of continuous drilling. To address this issue, we propose a pipe hole opener that ensures smooth drilling. Utility Model Content

[0004] The present invention aims to provide a smooth-drilling pipe hole drill to address the problem, raised in the prior art, that waste material may become embedded in the cylindrical cutter blade during pipe drilling, and a return spring exerts a certain force on the waste material, allowing it to be expelled. However, due to the limited elastic force of the return spring, it is difficult to ensure the effective discharge of the waste material, thereby affecting the smoothness of continuous drilling.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a pipe hole opener with smooth drilling, comprising a cutting blade, a drill bit and a connecting shaft, wherein a spring is sleeved on the drill bit, the cutting blade is fixedly mounted on the connecting shaft, the drill bit is fixedly mounted below the connecting shaft, and a chip removal assembly is provided inside the cutting blade;

[0006] The chip removal assembly includes a guide plate, an uneven plate and a movable plate. The guide plate is arranged above the uneven plate, and the uneven plate is fixedly installed on the connecting shaft. A plug-in rod is fixedly inserted in an annular shape on the guide plate. A guide sleeve is provided in an annular shape on the upper end of the inner cavity of the cutting knife. The plug-in rod is movably inserted in the guide sleeve. A second spring is provided inside the guide sleeve, and the second spring is arranged above the plug-in rod. A spherical convex head is fixedly installed below the plug-in rod, and the spherical convex head is in movably contact with the uneven plate.

[0007] Preferably, the movable plate and the guide plate are fixedly installed via a connecting rod.

[0008] Preferably, the movable plate fits the inner side of the cutting blade, and the movable plate is movably sleeved on the drill bit.

[0009] Preferably, the guide plate, the uneven plate and the movable plate are all parallel to each other, and the outer diameters of the uneven plate and the movable plate are both smaller than the outer diameter of the movable plate.

[0010] Preferably, the guide plate is movably sleeved on the connecting shaft, and the center line of the guide plate and the center line of the connecting rod are parallel to each other.

[0011] Preferably, the guide sleeves and the connecting rods are positioned in corresponding upper and lower positions, and the number of the guide sleeves and the connecting rods is equal.

[0012] Preferably, the longitudinal section of the plug-in rod is in the shape of a cross, and the plug-in rod is annular and arranged on the outside of the connecting shaft.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. This pipe hole opener with smooth drilling has a chip removal component arranged inside the cylindrical cutting blade. When the electric drill drives the connecting shaft to rotate, the cylindrical cutting blade and the drill bit rotate, and the pipe can be drilled. During this process, the connecting shaft can drive the uneven plate to rotate. As the uneven plate rotates, the side plug-in rod located above the protrusion of the uneven plate moves upward, which can then drive the guide plate to move upward. Through the connection of the connecting rod, the movable plate reciprocates up and down inside the cylindrical cutting blade, which can provide a driving force for the waste entering the cylindrical cutting blade during the cutting process, making it easier to discharge the cutting waste, thereby improving the smoothness of the drilling and cutting.

[0015] 2. This type of pipe hole opener with smooth drilling can make the movable plate reciprocate up and down inside the cylindrical cutting knife through the drilling driving force, which can compress the cutting waste to a certain extent and make it easier to recycle the waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of a half-section structure of the present utility model;

[0018] Figure 3 For the utility model Figure 2 The enlarged view of M;

[0019] Figure 4 For the utility model Figure 2 The enlarged view at point N;

[0020] Figure 5 It is a schematic diagram of the non-flat plate structure of the present utility model.

[0021] In the figure: 1. cutting knife; 2. drill bit; 3. spring 1; 4. connecting shaft; 5. chip removal assembly; 51. guide plate; 52. uneven plate; 53. movable plate; 54. connecting rod; 55. guide sleeve; 56. spring 2; 57. plug-in rod; 58. spherical protrusion. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example: See Figure 1-5 , the utility model provides a technical solution: a pipe hole opener with smooth drilling, which is mainly aimed at the waste material that will be embedded in the cylindrical cutting knife when drilling a hole in the pipe, and the reset spring has a certain thrust on the waste material, so that the waste material can be discharged. However, due to the limited elastic force of the reset spring, it is difficult to ensure the waste discharge effect, which in turn affects the problem of continuous drilling fluency, which needs to be improved. The specific scheme is as follows: It includes a cutting knife 1, a drill bit 2 and a connecting shaft 4, and the connecting shaft 4 can connect the hole opener to the output shaft of the electric drill. A spring 3 is sleeved on the drill bit 2, and the spring 3 can facilitate the removal of chips in the drilling hole. Through the elastic force of the spring 3, the waste material after cutting is easier to discharge. The cutting knife 1 is fixedly installed on the connecting shaft 4, the drill bit 2 is fixedly installed below the connecting shaft 4, and a chip removal component 5 is provided inside the cutting knife 1;

[0024] See also Figure 2 、 Figure 3 and Figure 4 The chip removal assembly 5 comprises a guide plate 51, an uneven surface 52, and a movable plate 53. The movable plate 53 and guide plate 51 are fixedly mounted via a connecting rod 54. The connecting rod 54 connects the guide plate 51, which in turn drives the movable plate 53. The movable plate 53 abuts the inner surface of the cutting blade 1 and is movably mounted on the drill bit 2. The movement of the movable plate 53 assists the spring 3 in pushing the cut waste material out of the cylindrical cutting blade.

[0025] Furthermore, the guide plate 51 is disposed above the uneven plate 52. The guide plate 51, the uneven plate 52, and the movable plate 53 are all parallel to each other, and the outer diameters of the uneven plate 52 and the movable plate 53 are all smaller than the outer diameter of the movable plate 53. The guide plate 51 is movably sleeved on the connecting shaft 4, and the centerline of the guide plate 51 and the centerline of the plug rod 57 are parallel to each other. The uneven plate 52 is fixedly mounted on the connecting shaft 4. The plug rod 57 is fixedly inserted in an annular shape on the guide plate 51. A guide sleeve 55 is provided in an annular shape at the upper end of the inner cavity of the cutting blade 1. The guide sleeve 55 and the plug rod 57 correspond to each other in upper and lower positions, and the number of guide sleeves 55 and plug rod 57 is equal. The plug rod 57 is movably inserted into the guide sleeve 55. After the guide plate 51 is limited by the plug rod 57 and the connecting shaft 4, it can only move upward or downward along the axis of the connecting shaft 4.

[0026] It is worth noting that one side of the upper end surface of the uneven plate 52 is higher than the other side. Figure 5 When the electric drill drives the connecting shaft 4 to rotate, the cylindrical cutter 1 and the drill bit 2 rotate to perform a drilling operation on the pipe; during this process, the uneven plate 52 rotates along with the connecting shaft 4.

[0027] See also Figure 3 A second spring 56 is provided within the guide sleeve 55. The second spring 56 is located above the plug rod 57. A spherical protrusion 58 is fixedly mounted below the plug rod 57, and the spherical protrusion 58 is in movable contact with the uneven plate 52. The plug rod 57 has a cross-shaped longitudinal section and is annularly located outside the connecting shaft 4. The provision of the second spring 56 ensures that the spherical protrusion 58 below the plug rod 57 always contacts the uneven plate 52. When the uneven plate 52 rotates with the connecting shaft 4, the plug rod 57 located above the protrusion of the uneven plate 52 moves upward as the uneven plate 52 rotates, thereby driving the guide plate 51 upward. Through the connection of the connecting rod 54, the movable plate 53 reciprocates up and down within the cylindrical cutting blade 1, providing a driving force for waste material that enters the cylindrical cutting blade 1 during the cutting process, making it easier to discharge the waste material and improving the smoothness of the drilling process.

[0028] Working principle: Before use, the connecting shaft 4 is fixedly installed on the output shaft of the electric drill. When the electric drill drives the connecting shaft 4 to rotate, the cylindrical cutting blade 1 and the drill bit 2 rotate, and the pipe can be drilled. During this process, the connecting shaft 4 can drive the uneven plate 52 to rotate. As the uneven plate 52 rotates, the side plug-in rod 57 located above the protrusion of the uneven plate 52 moves upward, which can drive the guide plate 51 to move upward. Through the connection action of the connecting rod 54, the movable plate 53 reciprocates up and down inside the cylindrical cutting blade 1, which can provide a driving force for the waste entering the cylindrical cutting blade 1 during the cutting process, making it easier to discharge the cutting waste, thereby improving the smoothness of drilling and cutting. At the same time, through the reciprocating motion of the movable plate 53, the cutting waste can be compressed to a certain extent, making it easier to recycle the waste.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe hole opener with smooth drilling, comprising a cutting blade (1), a drill bit (2) and a connecting shaft (4), wherein a spring (3) is sleeved on the drill bit (2), and characterized in that: The cutting blade (1) is fixedly mounted on the connecting shaft (4), the drill bit (2) is fixedly mounted below the connecting shaft (4), and a chip removal assembly (5) is provided inside the cutting blade (1); The chip removal assembly (5) comprises a guide plate (51), an uneven plate (52) and a movable plate (53), wherein the guide plate (51) is arranged above the uneven plate (52), and the uneven plate (52) is fixedly mounted on the connecting shaft (4). A plug-in rod (57) is fixedly inserted in an annular shape on the guide plate (51), and a guide sleeve (55) is arranged in an annular shape on the upper end of the inner cavity of the cutting knife (1), and the plug-in rod (57) is movably inserted in the guide sleeve (55). A second spring (56) is arranged in the guide sleeve (55), and the second spring (56) is arranged above the plug-in rod (57). A spherical protrusion (58) is fixedly mounted below the plug-in rod (57), and the spherical protrusion (58) is in movably contact with the uneven plate (52).

2. The pipe hole opener with smooth drilling according to claim 1, characterized in that: The movable plate (53) and the guide plate (51) are fixedly mounted via a connecting rod (54).

3. The pipe hole opener with smooth drilling according to claim 1, characterized in that: The movable plate (53) is fitted on the inner side of the cutting blade (1), and the movable plate (53) is movably sleeved on the drill bit (2).

4. The pipe hole opener with smooth drilling according to claim 1, characterized in that: The guide plate (51), the uneven plate (52) and the movable plate (53) are all parallel to each other, and the outer diameters of the uneven plate (52) and the movable plate (53) are both smaller than the outer diameter of the movable plate (53).

5. The pipe hole opener with smooth drilling according to claim 1, characterized in that: The guide plate (51) is movably sleeved on the connecting shaft (4), and the center line of the guide plate (51) and the center line of the plug rod (57) are parallel to each other.

6. The pipe hole opener with smooth drilling according to claim 1, characterized in that: The guide sleeves (55) and the plug rods (57) are positioned in corresponding positions up and down, and the guide sleeves (55) and the plug rods (57) are equal in number.

7. The pipe hole opener with smooth drilling according to claim 1, characterized in that: The longitudinal section of the connecting rod (57) is in the shape of a cross, and the connecting rod (57) is annular and arranged outside the connecting shaft (4).

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