Pipeline drilling assembly

Abstract

The utility model relates to the field of pipeline machining, and discloses a pipeline drilling assembly which mainly comprises a fixing sleeve and a drill bit. The fixing sleeve is located on the outer side of the pipeline to form a fixing structure on the outer surface of the pipeline. The drill bit is movably connected with the fixing sleeve so that the surface of the pipeline can be machined when the drill bit moves. The fixing sleeve comprises a connecting part and a guiding part, the connecting part wraps the outer surface of the pipeline, and the guiding part can contain the drill bit so that the drill bit can move back and forth in the guiding part in the axial direction. The pipeline drilling assembly is convenient to use, and the drilling position can be flexibly adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline processing field, specifically speaking, it is a pipeline drilling assembly. BACKGROUND

[0002] Pipeline is the fluid medium conveying channel that is very commonly used at present, especially liquid pipeline, which is widely used in different conveying, processing or manufacturing industries. But the traditional pipeline has the difficulty to overcome the shortcomings, that is, it is very difficult to drill holes on its circular surface, and the drill bit is very easy to slip when drilling on its surface due to the rotation of the pipeline.

[0003] Chinese patent document CN212121372U discloses a water pipe drilling device, which uses first and second clamping plates fixed on both sides of the workbench to fix the water pipe and drills holes in the pipeline through a drilling rod.

[0004] Chinese patent document CN210632989U discloses a positioning device for pipeline drilling, which uses first and second connecting plates located on the outer side of the pipeline to respectively position first and second clamping members on the first and second connecting plates to clamp the pipeline to avoid rotation during drilling.

[0005] Although the above two devices solve the problem of pipeline rotation to some extent, they still have two technical defects. Firstly, both of the above two devices need to clamp the pipeline separately on the outer side of the pipeline, and after the pipeline is installed, it cannot be clamped and drilled on the outer side of the pipeline, so the use of the above two devices is very inconvenient. Secondly, the pipeline needs to be adjusted according to the installation site during installation, and the drilling position will also be adjusted accordingly. The separate clamping structure on the outer side of the pipeline of the above two devices makes it impossible to flexibly adjust the drilling position according to the actual situation, so the applicability of the above two devices is poor. UTILITY MODEL CONTENTS

[0006] The utility model aims at overcoming the defects of the prior art, and provides a pipeline drilling assembly which is convenient to use and can flexibly adjust the drilling position.

[0007] In order to achieve the above purpose, the utility model provides a pipeline drilling assembly, which mainly comprises a fixing sleeve and a drill bit. The fixing sleeve is located on the outer side of the pipeline to form a fixing structure on the outer surface of the pipeline. The drill bit is movably connected with the fixing sleeve to process the surface of the pipeline when it moves. The fixing sleeve comprises a connecting part and a guide part, the connecting part is covered on the outer surface of the pipeline, and the guide part can accommodate the drill bit to move back and forth along the axial direction in the guide part.

[0008] By optimizing the above pipeline drilling assembly, the guide part and the drill bit are further provided with a positioning sleeve. The positioning sleeve is movably connected with the guide part and fixedly connected with the drill bit. The drill bit extends out of the positioning sleeve so as to contact the surface of the pipeline when the positioning sleeve and the guide part move relative to each other. The positioning sleeve can press against the outer surface of the pipeline when the guide part moves relative to the positioning sleeve, so as to control the machining depth of the drill bit.

[0009] By further refining the above pipeline drilling assembly, a positioning groove is formed on the drill bit, and the positioning sleeve is further provided with a fixing block. The fixing block is buckled with the positioning groove, so as to realize the fixed connection between the drill bit and the positioning sleeve.

[0010] By further refining the above pipeline drilling assembly, the outer side of the positioning sleeve is further provided with a positioning table. The positioning table can press against the inner top surface of the guide part, so as to position the axial backoff of the drill bit.

[0011] By further refining the above pipeline drilling assembly, the outer side of the positioning sleeve is further provided with a positioning block. The positioning block is located at the outer side of the positioning table, so as to position the drill bit again when the positioning table fails.

[0012] By optimizing the above pipeline drilling assembly, the connecting part comprises a first clamping jaw and a second clamping jaw. The first clamping jaw and the second clamping jaw are located at the two outer sides of the guide part and can press against the outer surface of the pipeline, so as to realize the fixation between the guide part and the pipeline.

[0013] The pipeline drilling assembly has the following beneficial effects:

[0014] 1. The pipeline drilling assembly has the movable connection structure of the fixing sleeve and the drill bit. The relative fixation between the drill bit and the pipeline is realized by the pressure applied by the drill bit on the fixing sleeve. First, the structure does not need to be fixedly installed between the pipeline and the drill bit, so the connection and separation of the fixing sleeve and the pipeline are very convenient. Second, the fixing sleeve does not need to be fixedly installed on the pipeline. The user can flexibly adjust the punching position according to the actual installation condition of the pipeline, so that the pipeline drilling assembly can adapt to different pipeline environments.

[0015] 2. The pipeline drilling assembly is further provided with the positioning sleeve between the guide part and the drill bit. The positioning sleeve is movably connected with the guide part and fixedly connected with the drill bit. The positioning sleeve can form bidirectional positioning for the axial movement of the drill bit in the fixing sleeve. In addition to avoiding accidental disengagement of the drill bit from the fixing sleeve when the drill bit backoff, the positioning sleeve can also control the drilling depth of the drill bit on the pipeline, so as to avoid the contact of the drill bit with the other inner side surface of the pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 The structure diagram of the best embodiment of the pipeline drilling assembly is shown in the figure.

[0017] Fig. 2The structural exploded view of the best embodiment of the present application;

[0018] Fig. 3 The cross-sectional view of the best embodiment of the present application;

[0019] Fig. 4 The cross-sectional view of the best embodiment of the present application.

[0020] The fixed sleeve 1, the connecting part 11, the guide part 12, the guide hole 13, the limiting table 14, the first clamping jaw 111, the second clamping jaw 112, the positioning sleeve 2, the fixed block 21, the positioning table 22, the positioning block 23, the drill bit 3 and the positioning groove 31 are indicated as follows in the drawing. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. The following embodiments are one or several examples capable of realizing the technical scheme of the present application, obtaining the corresponding technical effect and solving the corresponding technical problems, and do not represent that the protection scope of the present application is limited in the range of the following embodiments.

[0022] According to Figs. 1 to 4 As shown in the drawings, the pipeline drilling assembly of the present application mainly comprises a fixed sleeve 1 and a drill bit 3. The fixed sleeve 1 is arranged at the outer side of the pipeline, the drilling end of the drill bit 3 is movably connected with the fixed sleeve 1, and the other end is fixed with a drilling machine outside. The drill bit 3 rotates under the driving of the drilling machine, and under the condition that the drilling machine applies pressure when drilling, the fixed sleeve 1 is pressed on the outer side of the pipeline, so as to realize the positioning of the drill bit 3 in the radial direction by the fixed sleeve 1, and avoid the slip of the drill bit 3 on the circular outer surface of the pipeline. The fixed sleeve 1 is composed of a connecting part 11 and a guide part 12, wherein the connecting part 11 is wrapped on the outer surface of the pipeline, and can limit the movement of the guide part 12 in the radial direction. The guide part 12 is processed in an integral molding manner, and a guide hole 13 is formed on the guide part 12, the guide hole 13 penetrates through the guide part 12 and is in communication with the bottom surface of the connecting part 11 in contact with the pipeline, so that the guide part 12 can accommodate the drill bit 3. The drill bit 3 can move back and forth along the axial direction of the guide part 12, so as to realize the drilling and retraction of the drill bit 3 on the pipeline.

[0023] In one embodiment of the present application, the guide part 12 and the drill bit 3 further have a positioning sleeve 2. The outer surface of the positioning sleeve 2 is movably connected with the guide part 12, and the inner surface thereof is fixed with the drill bit 3. In this embodiment, after the drill bit 3 is fixedly connected with the positioning sleeve 2, the drilling end thereof extends out of the positioning sleeve 2, so as to realize the contact with the surface of the pipeline. The positioning sleeve 2 can move back and forth along the axial direction of the guide part 12, and can be pressed on the outer surface of the pipeline when close to the pipeline, so as to realize the drilling depth control of the drill bit 3.

[0024] In another embodiment of the present utility model, the drill bit 3 is also provided with a positioning groove 31. The positioning groove 31 is located on the flat section of the outer surface of the drill bit 3 and can be directly machined on the outer surface of the drill bit 3. The positioning sleeve 2 is also provided with a fixing block 21, which is located on the inner surface of the positioning sleeve 2 and corresponds to the positioning groove 31 and is buckled together. In fact, the positioning sleeve 2 can be machined by using non-metallic materials, so that the manufacturer can directly use the drill bit 3 as an insert and directly injection mold the positioning sleeve 2 in the mold.

[0025] In another embodiment of the present utility model, the outer side of the positioning sleeve 2 is also provided with a positioning table 22. The positioning table 22 is located at the lower part of the positioning sleeve 2 and can be pressed on the inner top surface of the fixing sleeve 1 when the positioning table 22 moves along the axis, and the positioning table 22 can be integrally machined on the positioning sleeve 2. In this embodiment, in order to realize the pressing contact between the positioning table 22 and the inner top surface of the guide part 12, a limiting table 14 can be arranged at the upper part of the guide part 12. The inner diameter of the limiting table 14 is smaller than the outer diameter of the fixing sleeve 1 and greater than or equal to the hole diameter of the guide hole 13, and it can also be machined in an integral molding manner with the guide part 12.

[0026] In another embodiment, the positioning sleeve 2 is also provided with a positioning block 23. The positioning block 23 is located at the lower part of the outer side of the positioning sleeve 2, specifically below the positioning table 22. The positioning block 23 and the positioning table 22 can also be integrally machined and molded, and the diameter of the positioning block 23 is greater than the inner diameter of the positioning table 22, so that when the clamping between the positioning table 22 and the limiting table 14 is disengaged, the positioning block 23 can perform secondary positioning on the axial direction of the positioning sleeve 2, avoiding the drill bit 3 from accidentally escaping from the guide part 12. The positioning block 23 is in sliding connection with the inner side wall of the guide part 12, so as to avoid the radial shaking of the positioning sleeve 2 when it moves in the axial direction.

[0027] In another embodiment of the present utility model, the connecting part 11 is composed of a first clamping jaw 111 and a second clamping jaw 112. The first clamping jaw 111 and the second clamping jaw 112 are respectively located at the two outer sides of the guide part 12, and they can be pressed on the outer surface of the pipeline when the drill bit 3 is working, so as to realize the radial positioning of the drill bit 3. The first clamping jaw 111 and the second clamping jaw 112 form an arc surface in contact with the outer surface of the pipeline after being combined, and the length of the two sides of the bottom end of the arc surface is less than or equal to the outer diameter of the pipeline, which is convenient for the user to install and disassemble on the pipeline.

[0028] The pipeline drilling assembly of the utility model uses, first, the positioning sleeve 2 and the drill bit 3 are inserted into the fixed sleeve 1 from the bottom of the fixed sleeve 1, and are moved along the axial direction of the fixed sleeve 1, and the installation of the fixed sleeve 1 and the positioning sleeve 2 is completed when the positioning table 22 and the limiting table 14 are in contact. Then the exposed flat section of the drill bit 3 is connected and installed with the drilling machine from the outside of the fixed sleeve 1. When it is needed to punch a hole on the pipeline, the first clamping jaw 111 and the second clamping jaw 112 are pressed on the outer surface of the pipeline, then the positioning sleeve 2 and the drill bit 3 are pushed forward in the direction of the pipeline at the same time when the drilling machine is started, at this time the positioning sleeve 2 and the drill bit 3 rotate at the same time, and the positioning block 23 plays a guiding role on the movement of the positioning sleeve 2. The drill bit 3 starts the drilling operation when it is in contact with the outer surface of the pipeline, and the positioning sleeve 2 can be pressed on the outer surface of the pipeline when the depth of the drill bit 3 reaches a certain degree, at this time the drilling machine cannot be pushed forward any more, and the punching process of the pipeline is completed.

[0029] The above specific embodiments are only specific embodiments with better effects of the utility model, and any pipeline drilling assembly with the same or equivalent structure without departing from the utility model is within the protection scope of the utility model.

Claims

1. A pipe drilling assembly characterized by: The pipeline drilling assembly comprises a fixing sleeve (1) arranged outside the pipeline, a drill bit (3) movably connected with the fixing sleeve (1), the fixing sleeve (1) comprising a connecting part (11) capable of being wrapped around the outer surface of the pipeline and a guiding part (12) for accommodating the drill bit (3), and the drill bit (3) is capable of moving back and forth along the axial direction of the guiding part (12).

2. The pipe drilling assembly of claim 1, wherein: A positioning sleeve (2) is arranged between the guiding part (12) and the drill bit (3), and the positioning sleeve (2) is movably connected with the guiding part (12) and fixedly connected with the drill bit (3), the drill bit (3) extends out of the positioning sleeve (2), and the positioning sleeve (2) is capable of being pressed against the outer surface of the pipeline.

3. The pipe drilling assembly of claim 2, wherein: The drill bit (3) is provided with a positioning groove (31), and the positioning sleeve (2) is provided with a fixing block (21) capable of being buckled with the positioning groove (31).

4. The pipe drilling assembly of claim 2, wherein: The outer side surface of the positioning sleeve (2) is provided with a positioning platform (22) capable of being pressed against the top surface of the guiding part (12).

5. The pipe drilling assembly of claim 4, wherein: The outer side surface of the positioning sleeve (2) is provided with a positioning block (23) located outside the positioning platform (22).

6. The pipe drilling assembly of any one of claims 1 to 5, wherein: The connecting part (11) comprises a first clamping jaw (111) and a second clamping jaw (112) located outside the guiding part (12) and capable of being pressed against the outer surface of the pipeline.

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