Pressure tapping device

Abstract

The utility model relates to the technical field of pipeline trepanning, and discloses an under-pressure trepanning device which comprises a mounting seat, the mounting seat is of a sleeve structure, a spherical valve is connected to the mounting seat and used for timely plugging a trepanning hole after trepanning, a trepanning device is connected to the spherical valve and comprises a shell, a transmission rod is connected into the shell in a telescopic mode, and the transmission rod is connected to the mounting seat. And the lower end of the transmission rod is connected with a tapping tool bit corresponding to the pipeline tapping position. The pipeline tapping operation process is in a controllable state all the time, the pipeline tapping operation can be executed under the condition that the pipeline is not closed, the problem that normal production is affected due to pipeline closing or pipeline leakage is avoided, and production efficiency is guaranteed; the arrangement of the sealing cover and the guide structure effectively limits the radial swing of the transmission rod, ensures the action stability and precision of the transmission rod, and ensures the tapping quality; due to the arrangement of the limiting stop table, the effect of preventing the trepanning tool bit from scratching the pipe wall on the other side in the over-stroke process is achieved, and operation safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline opening, in particular to a pressure opening device. Background Art

[0002] The various process pipelines in aluminum alloy wheel manufacturing lines serve as auxiliary facilities to ensure continuous and stable production operations and play a vital role in the production process. In actual production, process adjustments or equipment upgrades often require drilling holes in pipelines to facilitate the installation of testing equipment or the connection of branch lines. However, drilling holes in pipelines currently in use often requires shutting down the production line to avoid fluctuations in process parameters and impacting product quality. Production can only resume after the pipeline drilling and installation are complete. This impacts production line efficiency and increases production costs.

[0003] Based on this, developing a pressurized hole-opening device for application in actual production and meeting the hole-opening operation needs of pressurized pipelines without affecting normal production operations is an urgent problem to be solved. Utility Model Content

[0004] The purpose of the present invention is to provide a pressure-operated hole-opening device to solve the problem that the existing pipeline hole-opening operation requires the production line to be shut down, thereby affecting production efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A pressure hole opening device includes a mounting seat, which is a sleeve structure. A spherical valve is connected to the mounting seat for timely sealing the hole after opening. The spherical valve is connected to a hole opener, which includes a shell. A transmission rod is telescopically connected to the shell, and a hole opening cutter head is connected to the lower end of the transmission rod corresponding to the pipeline opening position.

[0007] Preferably, the upper portion of the shell of the hole opener is in the shape of a cone.

[0008] Preferably, a cover is connected to the upper portion of the shell, a through hole is provided on the cover corresponding to the transmission rod, the transmission rod is slidably connected to the through hole of the cover, an external thread is provided on the upper portion of the shell, and the cover is threadedly connected to the upper portion of the shell.

[0009] Preferably, a guide structure is provided in the shell corresponding to the transmission rod, and the guide structure includes a first guide seat and a second guide seat, and the first guide seat and the second guide seat are respectively provided with a first guide hole and a second guide hole, and the transmission rod is slidably connected to the first guide hole and the second guide hole.

[0010] Preferably, the first guide seat and the second guide seat are respectively provided with bearing seats for mounting rolling bearings, the inner diameter of the rolling bearing is set corresponding to the outer diameter of the transmission rod, and the transmission rod has axial freedom relative to the inner diameter of the bearing.

[0011] Preferably, a pressure-resistant water seal is provided corresponding to the second guide hole, and the transmission rod is slidably connected to the inner diameter of the pressure-resistant water seal.

[0012] Preferably, a limit stop is provided on the transmission rod for limiting the travel of the transmission rod, and the diameter of the limit stop is larger than the diameter of the perforation of the cover.

[0013] Preferably, the shell is a three-section split structure, and the three-section split structure is threadedly connected to form the shell as a whole.

[0014] The beneficial effects of the present invention are:

[0015] The arrangement of the mounting seat and the ball valve in the utility model keeps the pipeline hole opening operation process in a controllable state at all times, and the pipeline hole opening operation can be performed without closing the pipeline, thus avoiding the problem of normal production being affected by closing the pipeline or pipeline leakage, and ensuring production efficiency; the arrangement of the sealing cover and the guide structure effectively limits the radial swing of the transmission rod, ensures the movement stability and accuracy of the transmission rod, and ensures the hole opening quality; the arrangement of the limit stop prevents the hole opening cutter head from overtravelling and scratching the pipe wall on the other side, thereby ensuring operation safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the cross-sectional structure of the present utility model.

[0018] In the figure: 10--mounting seat; 20--spherical valve; 30--hole opener; 31--housing; 32--transmission rod; 33--hole opening cutter head; 34--sealing cover; 35--first guide seat; 36--second guide seat; 37--bearing seat; 38--pressure-resistant water seal; 39--limit stop; 40--pipe wall. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] like Figure 1As shown, a pressurized hole-drilling device includes a mounting base 10, which is a sleeve structure and is used to connect to a pipe wall 40 of a pipeline. A ball valve 20 is connected to the mounting base 10 to promptly seal the hole after drilling to prevent leakage of the conveying medium in the pipeline. A hole-drilling device 30 is connected to the ball valve 20. The hole-drilling device 30 includes a housing 31, within which a transmission rod 32 is telescopically connected. A hole-drilling cutter head 33 is connected to the lower end of the transmission rod 32, corresponding to the position of the pipeline drilling.

[0021] During use, first weld the mounting base 10 to the outer wall of the pipeline where the hole is to be drilled. Then, connect the ball valve 20 to the mounting base 10, and finally connect the hole opener 30 to the ball valve 20 to complete the installation of the hole opening device. To drill a hole, rotate the ball valve 20 to the open position so that the hole opening cutter 33 of the hole opener 30 can smoothly pass through the ball valve 20. Connect a rotary power source such as a hand drill to the top of the transmission rod 32, so that the transmission rod 32 drives the hole opening cutter 33 to rotate. At this time, push the transmission rod 32 downward to begin drilling the hole in the pipeline wall 40. After drilling the hole, pull the transmission rod 32 upward to above the ball valve 20 and promptly close the ball valve 20, completing the pipeline pressure drilling operation. Remove the hole opener 30 to proceed with the subsequent installation of testing equipment or branch pipeline connection operations. The arrangement of the mounting seat 10 and the ball valve 20 in this embodiment allows the pipeline drilling process to be always under control, allowing the pipeline drilling operation to be performed without closing the pipeline, thereby avoiding the problem of normal production being affected by pipeline closure or pipeline leakage, and ensuring production efficiency.

[0022] As a preferred embodiment, the upper portion of the housing 31 of the hole opener 30 is in a cone shape, which reduces the volume of the device on the one hand and facilitates heat dissipation when the transmission rod 32 rotates at high speed on the other hand.

[0023] Furthermore, a cover 34 is connected to the upper portion of the housing 31. A perforation is provided on the cover 34 corresponding to the drive rod 32, and the drive rod 32 is slidably connected to the perforation of the cover 34. The upper portion of the housing 31 is externally threaded, and the cover 34 is threadedly connected to the upper portion of the housing 31, facilitating manufacturing, assembly, and maintenance. Furthermore, the perforation of the cover 34, which is located away from the drilling head 33, serves as a positioning guide for the drive rod 32, reducing radial swing of the drive rod 32 and improving drilling accuracy.

[0024] Preferably, a guide structure is provided within the housing 31 corresponding to the transmission rod 32 to further improve the movement accuracy of the transmission rod 32. The guide structure includes a first guide seat 35 and a second guide seat 36, each of which has a first guide hole and a second guide hole, respectively. The transmission rod 32 is slidably connected to the first guide hole and the second guide hole. The guidance of the first guide hole and the second guide hole further ensures the movement stability and accuracy of the transmission rod 32.

[0025] Preferably, each of the first guide seat 35 and the second guide seat 36 is provided with a bearing seat 37 for mounting a rolling bearing. The inner diameter of the rolling bearing is configured to correspond to the outer diameter of the transmission rod 32, allowing the transmission rod 32 to have axial freedom relative to the inner diameter of the bearing. The provision of the rolling bearing reduces friction between the transmission rod 32 and the guide structure, further ensuring operational stability and precision.

[0026] In order to improve the sealing performance of the hole opener 30 , a pressure-resistant water seal 38 is provided corresponding to the second guide hole to prevent leakage of the medium in the pipeline. The transmission rod 32 is slidably connected to the inner diameter of the pressure-resistant water seal 38 .

[0027] Preferably, a limit stop 39 is provided on the transmission rod 32 for limiting the stroke of the transmission rod 32. The diameter of the limit stop 39 is larger than the perforation diameter of the cover 34. When the transmission rod 32 descends to perform the hole-opening operation, after the hole-opening cutter head 33 penetrates the tube wall 40 on one side, the limit stop 39 will contact the cover 34 in time to limit the hole-opening cutter head 33 from continuing to descend, thereby preventing the hole-opening cutter head 33 from over-traveling and scratching the tube wall 40 on the other side, thereby ensuring the safety of the operation.

[0028] Preferably, the housing 31 is a three-section split structure, which is threadedly connected to form the entire housing 31. The split structure of the housing 31 facilitates assembly and maintenance of the hole opener, and the corresponding configuration can be replaced according to pipelines of different specifications to meet the needs of opening holes in different pipelines, thereby improving applicability.

[0029] The above disclosure is only a specific embodiment of the present invention, but the present invention is not limited thereto. For ordinary technicians in this field, without departing from the principle of the present invention, any deformation made should be deemed to be protected by the present invention.

Claims

1. A pressure tapping device, characterized in that: The invention comprises a mounting seat (10), wherein the mounting seat (10) is a sleeve structure, and a spherical valve (20) is connected to the mounting seat (10) for timely sealing the hole after the hole is opened. The spherical valve (20) is connected to a hole opener (30), and the hole opener (30) comprises a shell (31), and a transmission rod (32) is telescopically connected to the shell (31), and a hole opening cutter head (33) is connected to the lower end of the transmission rod (32) corresponding to the pipeline hole opening position.

2. The pressure tapping device according to claim 1, characterized in that: The upper portion of the shell (31) of the hole opener (30) is shaped like a cone.

3. The pressure tapping device according to claim 1, characterized in that: The upper portion of the housing (31) is connected to a cover (34), a through-hole is provided on the cover (34) corresponding to the transmission rod (32), and the transmission rod (32) is slidably connected to the through-hole of the cover (34). The upper portion of the housing (31) is provided with an external thread, and the cover (34) is threadedly connected to the upper portion of the housing (31).

4. The pressure tapping device according to claim 1, characterized in that: A guide structure is provided in the housing (31) corresponding to the transmission rod (32), the guide structure comprising a first guide seat (35) and a second guide seat (36), the first guide seat (35) and the second guide seat (36) respectively being provided with a first guide hole and a second guide hole, and the transmission rod (32) is slidably connected to the first guide hole and the second guide hole.

5. The pressure tapping device according to claim 4, characterized in that: The first guide seat (35) and the second guide seat (36) are respectively provided with bearing seats (37) for mounting rolling bearings. The inner diameter of the rolling bearing is set to correspond to the outer diameter of the transmission rod (32), and the transmission rod (32) has axial freedom relative to the inner diameter of the bearing.

6. The pressure tapping device according to claim 4, characterized in that: A pressure-resistant water seal (38) is provided corresponding to the second guide hole, and the transmission rod (32) is slidably connected to the inner diameter of the pressure-resistant water seal (38).

7. The pressure tapping device according to claim 3, characterized in that: A limit stop (39) is provided on the transmission rod (32) for limiting the travel of the transmission rod (32), and the diameter of the limit stop (39) is larger than the diameter of the hole of the cover (34).

8. The pressure tapping device according to claim 1, characterized in that: The housing (31) is a three-section split structure, and the three-section split structure is threadedly connected to form the housing (31) as a whole.

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