A petroleum pipeline cutting positioning and guiding device

Abstract

The utility model discloses a kind of petroleum pipeline cutting positioning guiding device, including bottom plate, the top of the bottom plate is provided with external fixed component, petroleum pipeline is arranged between the external fixed component, the inside of the petroleum pipeline is provided with internal support component, the support block is arc plate, the outer side of the support block is attached in the inner wall of petroleum pipeline, the right side of the petroleum pipeline is cutting end, the support block is located with right side bottom plate position inside and outside corresponding, the utility model relates to petroleum pipeline construction technical field;The petroleum pipeline cutting positioning guiding device, by double fixed mode, without external exerting excessive clamping force can realize the stable fixation to pipeline, effectively solve the problem that pipeline is easily deformed when clamping force is too large during fixing alone from outside, clamping force is smaller and cannot effectively fix pipeline, easily produce vibration in cutting process.

Description

Technical Field

[0001] This utility model relates to the field of oil pipeline construction technology, specifically an oil pipeline cutting positioning and guiding device. Background Technology

[0002] During the laying, maintenance, and replacement of oil pipelines, cutting operations are often required. To ensure that the cut pipeline ends are flat and facilitate subsequent connections or installations, precise positioning and guidance of the oil pipeline are necessary to ensure that the cutting tool can cut along the preset trajectory.

[0003] Existing positioning and guiding devices for securing oil pipelines often rely on external fixation, a method with significant drawbacks. Excessive clamping force can deform the pipeline, affecting its performance; conversely, insufficient clamping force fails to effectively secure the pipeline, leading to vibrations during cutting and further compromising cutting accuracy.

[0004] Therefore, this utility model provides an oil pipeline cutting positioning and guiding device to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an oil pipeline cutting positioning and guiding device, which solves the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an oil pipeline cutting positioning and guiding device, comprising a base plate, an external fixing assembly on the top of the base plate, an oil pipeline between the external fixing assemblies, an internal support assembly inside the oil pipeline, the external fixing assembly including a bottom plate, the bottom plate being fixedly installed on the left and right sides of the top of the base plate, the bottom of the bottom plate having an arc-shaped groove at the top, the bottom of the oil pipeline fitting into the arc-shaped groove, the internal support assembly including a central disc, the central disc having multiple sliding grooves at the inside, a slider being slidably connected inside the sliding groove, a connecting rod being fixedly installed on the outer end of the slider, a support block being fixedly installed on the outer side of the connecting rod, the support block being an arc-shaped plate, the outer side of the support block fitting into the inner wall of the oil pipeline, the right side of the oil pipeline being the cutting end, and the support block being positioned corresponding to the position of the right side of the bottom plate.

[0007] Preferably, side plates are fixedly installed on both the front and rear sides of the bottom plate, and a top plate is fixedly installed between the tops of the side plates. A first screw is threaded through the inside of the top plate, and a clamping plate is rotatably connected to the bottom of the first screw. The bottom of the clamping plate has an arc-shaped groove, and the clamping plate fits against the top of the oil pipeline through the arc-shaped groove.

[0008] Preferably, a limiting rod is fixedly installed on the top of the clamping plate, the limiting rod movably penetrates the interior of the top plate, and a first knob is fixedly installed on the top of the first screw.

[0009] Preferably, the thread lead angle of the first screw is less than the equivalent friction angle, and the outer side of the first screw is coated with a lubricating grease that has strong adhesion, is anti-leakage, wear-resistant, and anti-contamination properties.

[0010] Preferably, a slide rod is fixedly installed inside the slide groove, and the slider is slidably connected to the outside of the corresponding slide rod.

[0011] Preferably, a support rod is fixedly installed on the left side of the central disk, a connecting plate is fixedly installed between the left ends of the support rod, a second screw is rotatably connected between the connecting plate and the central disk, a moving block is screwed to the outer side of the second screw, and a connecting rod is hinged between the moving block and the corresponding slider.

[0012] Preferably, a motor is fixedly installed on the left side of the connecting plate, and the output end of the motor moves through the inside of the connecting plate and is fixedly connected to the second screw. The thread lead angle of the second screw is less than the equivalent friction angle, and the outer side of the second screw is coated with a lubricating grease with strong adhesion, anti-leakage, wear resistance and anti-pollution properties.

[0013] Preferably, an extension rod is fixedly installed on the left side of the connecting plate. The extension rod is inserted into the oil pipeline from the left side. A handle is fixedly installed on the left end of the extension rod. A control switch is fixedly installed at the connection between the handle and the extension rod. The control switch is electrically connected to the motor.

[0014] Beneficial effects

[0015] This utility model provides a cutting, positioning, and guiding device for oil pipelines. Compared with the prior art, it has the following advantages:

[0016] 1. This oil pipeline cutting positioning and guiding device uses an external fixing component to support the bottom of the oil pipeline through an arc-shaped groove on the bottom plate. Then, the first screw drives the clamping plate to move downward, using the arc-shaped groove of the clamping plate to fix the top of the oil pipeline. In conjunction with the support block of the internal support component, it provides support from inside the pipeline, achieving dual internal and external support and fixation near the oil pipeline cutting area. This dual fixing method can achieve stable fixation of the pipeline without applying excessive external clamping force, effectively solving the problems of excessive clamping force causing pipeline deformation when fixing from the outside alone, and insufficient clamping force causing ineffective pipeline fixation and vibration during the cutting process.

[0017] 2. This oil pipeline cutting positioning and guiding device, through the combination of internal support components and external fixing components, with the support block of the internal support component corresponding to the position of the bottom plate on the right side, can accurately position the cutting end of the oil pipeline, ensuring that the cutting tool cuts along the preset trajectory, thus improving the cutting accuracy. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a perspective view of the external structure of this utility model;

[0020] Figure 2 This is a side view of the structure of this utility model.

[0021] Figure 3 This is a three-dimensional view of the right side of this utility model;

[0022] Figure 4 This is a three-dimensional view of the right side of the internal support component of this utility model;

[0023] Figure 5 This is a three-dimensional view of the overall structure of the internal support component of this utility model.

[0024] In the diagram: 1. Base plate; 2. External fixing assembly; 21. Bottom plate; 22. Clamping plate; 23. Top plate; 24. Side plate; 25. First screw; 26. First knob; 27. Limiting rod; 3. Internal support assembly; 31. Extension rod; 32. Handle; 33. Control switch; 34. Center plate; 35. Support block; 36. Connecting rod; 37. Slider; 38. Slide rod; 39. Slide groove; 310. Connecting plate; 311. Support rod; 312. Motor; 313. Second screw; 314. Moving block; 315. Connecting rod; 4. Oil pipeline. Detailed Implementation

[0025] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0026] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] Reference Figures 1 to 5 This application provides an oil pipeline cutting positioning and guiding device, including a base plate 1. The base plate 1 is made of high-strength steel to ensure the overall stability of the device. An external fixing component 2 is provided on the top of the base plate 1, an oil pipeline 4 is arranged between the external fixing components 2, and an internal support component 3 is arranged inside the oil pipeline 4.

[0028] The external fixing component 2 includes a bottom plate 21, which is bolted to the left and right sides of the top of the bottom plate 1. The top of the bottom plate 21 has an arc-shaped groove, the curvature of which matches the outer wall curvature of the common oil pipeline 4. The bottom of the oil pipeline 4 fits into the arc-shaped groove, providing initial support for the oil pipeline 4. Side plates 24 are welded to the front and rear sides of the bottom plate 21. A top plate 23 is welded between the tops of the side plates 24. A first screw 25 is threaded through the inside of the top plate 23. The bottom of the first screw 25 is rotatably connected to a clamping plate 22 via a bearing. The bottom of the clamping plate 22 has an arc-shaped groove, the curvature of which also matches the outer wall curvature of the oil pipeline 4. The clamping plate 22 fits into the top of the oil pipeline 4 through the arc-shaped groove. A limiting rod 27 is welded to the top of the clamping plate 22. The limiting rod 27 extends through the interior of the top plate 23 and prevents the clamping plate 22 from rotating during vertical movement, ensuring the clamping plate 22's fixation of the oil pipeline 4. A first knob 26 is welded to the top of the first screw 25. Rotating the first knob 26 drives the first screw 25 to rotate, thereby enabling the clamping plate 22 to move vertically. The thread lead angle of the first screw 25 is less than the equivalent friction angle, giving the first screw 25 a self-locking function, ensuring that the clamping plate 22 will not loosen after being fixed. The outer side of the first screw 25 is coated with a strong-adhesion, anti-leakage, wear-resistant, and anti-contamination grease, such as lithium-based grease, to reduce friction between the first screw 25 and the top plate 23 and extend its service life.

[0029] The internal support component 3 includes a central disk 34, which is made of alloy material and has high strength and wear resistance. Multiple grooves 39 are radially and evenly distributed inside the central disk 34. A slider 37 is slidably connected inside each groove 39, and a sliding rod 38 is welded inside each groove 39. The slider 37 is slidably connected to the outer side of the corresponding sliding rod 38, and the sliding rod 38 guides the slider 37, ensuring smooth movement. A connecting rod 36 is welded to the outer end of the slider 37, and a support block 35 is welded to the outer side of the connecting rod 36. The support block 35 is an arc-shaped plate, and its outer side fits against the inner wall of the oil pipeline 4. The arc of the support block 35 matches the arc of the inner wall of the oil pipeline 4. The right side of the oil pipeline 4 is the cutting end, and the support block 35 is positioned corresponding to the bottom plate 21 on the right side to ensure precise positioning of the cutting end and to form double support near the cutting end in conjunction with the external fixing components. A support rod 311 is welded to the left side of the central disk 34. Multiple support rods 311 are symmetrically distributed. A connecting plate 310 is welded between the left ends of the support rods 311. A second screw 313 is rotatably connected to the central disk 34 via a bearing between the connecting plate 310 and the central disk 34. A moving block 314 is screwed to the outer side of the second screw 313. A connecting rod 315 is hinged to the corresponding slider 37 via a pin. A motor 312 is bolted to the left side of the connecting plate 310. The motor 312 is a servo motor, characterized by high control precision. The output end of the motor 312 extends through the interior of the connecting plate 310 and is fixedly connected to the second screw 313 via a coupling. The forward and reverse rotation of the motor 312 drives the second screw 313 to rotate forward and reverse, thereby causing the moving block 314 to move left and right. The moving block 314, via the connecting rod 315, drives the slider 37 to slide within the groove 39, achieving radial movement of the support block 35. The thread lead angle of the second screw 313 is smaller than the equivalent friction angle, giving it a self-locking function and ensuring that the support block 35 will not move on its own after being supported. The outer side of the second screw 313 is also coated with lithium-based grease to reduce friction and extend its service life. An extension rod 31 is welded to the left side of the connecting plate 310. The extension rod 31 is made of hollow steel tubing, reducing overall weight. The extension rod 31 is inserted into the oil pipe 4 from the left side. A handle 32 is welded to the left end of the extension rod 31, and the outer side of the handle 32 is fitted with a non-slip rubber sleeve for easy gripping by the operator. A control switch 33 is bolted to the connection between the handle 32 and the extension rod 31. The control switch 33 is electrically connected to the motor 312 via wires, and the control switch 33 can control the start, stop, and forward / reverse rotation of the motor 312.

[0030] The control switch 33 is a push-button switch of model LA42H-11.

[0031] Working principle: When using this oil pipeline cutting positioning and guiding device, firstly, place the oil pipeline 4 in the arc-shaped groove of the bottom plate 21. Turn the first knob 26 to drive the first screw 25 to rotate, causing the clamping plate 22 to move downwards until the arc-shaped groove of the clamping plate 22 fits against the top of the oil pipeline 4, thus externally fixing the oil pipeline 4. At this time, the external fixing force can be adjusted according to the actual situation, and it does not need to be too large to achieve a stable fixation with the internal support. Then, the operator holds the handle 32 and inserts the extension rod 31 of the internal support component 3 into the pipeline from the left side of the oil pipeline 4, so that the support block 35 is located in a position corresponding to the inside and outside of the right bottom plate 21, that is, the interior near the cutting edge. The motor 312 is started by the control switch 33. The motor 312 drives the second screw 313 to rotate, causing the moving block 314 to move to the right. The moving block 314 pushes the slider 37 to slide outward along the slide rod 38 through the connecting rod 315. The slider 37 drives the support block 35 to move outward through the connecting rod 36 until the outer side of the support block 35 is tightly attached to the inner wall of the oil pipeline 4, thus achieving internal support near the cutting of the oil pipeline 4. At this time, the area near the cutting of the oil pipeline 4 is double-fixed, both internally and externally. This avoids the pipeline deformation caused by excessive clamping force when only externally fixed, and solves the cutting vibration problem caused by insufficient clamping force. Moreover, the cutting end is accurately positioned, and the operator can use the cutting tool to cut the oil pipeline 4 along the positioning trajectory. After the cutting is completed, the motor 312 is reversed by the control switch 33, causing the support block 35 to move inward and detach from the inner wall of the oil pipeline 4. Then, the internal support assembly 3 is removed from the oil pipeline 4. Then, the first knob 26 is rotated in the opposite direction to move the clamping plate 22 upward, and the cut oil pipeline 4 can be removed.

[0032] Furthermore, all contents not described in detail in this specification are existing technologies known to those skilled in the art, and all electrical components mentioned in this document are powered by external power supply lines.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cutting, positioning, and guiding device for oil pipelines, comprising a base plate (1), characterized in that: An external fixing assembly (2) is provided on the top of the base plate (1), and an oil pipeline (4) is provided between the external fixing assemblies (2). An internal support assembly (3) is provided inside the oil pipeline (4). The external fixing assembly (2) includes a bottom plate (21), which is fixedly installed on the left and right sides of the top of the base plate (1). The bottom plate (21) has an arc-shaped groove at the top, and the bottom of the oil pipeline (4) fits into the arc-shaped groove. The internal support assembly (3) includes a central disc (34). The center plate (34) has multiple grooves (39) inside. A slider (37) is slidably connected inside the groove (39). A connecting rod (36) is fixedly installed on the outer end of the slider (37). A support block (35) is fixedly installed on the outer side of the connecting rod (36). The support block (35) is an arc-shaped plate. The outer side of the support block (35) is attached to the inner wall of the oil pipeline (4). The right side of the oil pipeline (4) is the cutting end. The support block (35) is located inside and outside the bottom plate (21) on the right side.

2. The oil pipeline cutting positioning and guiding device according to claim 1, characterized in that: Side plates (24) are fixedly installed on both the front and rear sides of the bottom plate (21). A top plate (23) is fixedly installed between the tops of the side plates (24). A first screw (25) is threaded through the inside of the top plate (23). A clamping plate (22) is rotatably connected to the bottom of the first screw (25). An arc-shaped groove is formed at the bottom of the clamping plate (22). The clamping plate (22) is attached to the top of the oil pipeline (4) through the arc-shaped groove.

3. The oil pipeline cutting positioning and guiding device according to claim 2, characterized in that: A limiting rod (27) is fixedly installed on the top of the clamping plate (22), and the limiting rod (27) moves through the interior of the top plate (23). A first knob (26) is fixedly installed on the top of the first screw (25).

4. The oil pipeline cutting positioning and guiding device according to claim 3, characterized in that: The thread lead angle of the first screw (25) is smaller than the equivalent friction angle, and the outer side of the first screw (25) is coated with a grease that has strong adhesion, is anti-leakage, wear-resistant and anti-pollution.

5. The oil pipeline cutting positioning and guiding device according to claim 1, characterized in that: The slide bar (38) is fixedly installed inside the slide groove (39), and the slider (37) is slidably connected to the outside of the corresponding slide bar (38).

6. The oil pipeline cutting positioning and guiding device according to claim 1, characterized in that: A support rod (311) is fixedly installed on the left side of the central disk (34). A connecting plate (310) is fixedly installed between the left ends of the support rod (311). A second screw (313) is rotatably connected between the connecting plate (310) and the central disk (34). A moving block (314) is screwed to the outside of the second screw (313). A connecting rod (315) is hinged between the moving block (314) and the corresponding slider (37).

7. The oil pipeline cutting positioning and guiding device according to claim 6, characterized in that: A motor (312) is fixedly installed on the left side of the connecting plate (310). The output end of the motor (312) moves through the interior of the connecting plate (310) and is fixedly connected to the second screw (313). The thread lead angle of the second screw (313) is less than the equivalent friction angle. The outer side of the second screw (313) is coated with a lubricating grease with strong adhesion, anti-leakage, wear resistance and anti-pollution properties.

8. The oil pipeline cutting positioning and guiding device according to claim 7, characterized in that: An extension rod (31) is fixedly installed on the left side of the connecting plate (310). The extension rod (31) is inserted into the oil pipeline (4) from the left side. A handle (32) is fixedly installed on the left end of the extension rod (31). A control switch (33) is fixedly installed at the connection between the handle (32) and the extension rod (31). The control switch (33) is electrically connected to the motor (312).

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