An automated cutting device for safe production of crude oil pipelines

Abstract

The present invention relates to the technical field of pipeline cutting devices, and specifically to an automated cutting device for safe production of crude oil pipelines, including a deformation frame mechanism and a moving frame, wherein the deformation frame mechanism includes a U-shaped frame and a C-shaped frame 2, wherein the U-shaped frame and the C-shaped frame 2 are slidably connected, and inner side walls of the C-shaped frame 2 and the U-shaped frame are provided with inner slide grooves, and both ends of the C-shaped frame 2 are provided with clamping slide grooves. In the present invention, through the arrangement of the deformation frame mechanism and the moving frame, the C-shaped frame 2 and the U-shaped frame are plugged in to surround the pipeline, and the length of the inner contour of the deformation frame mechanism is changed according to the need of the bevel angle, and the deformation frame mechanism is placed obliquely between the pipeline, and the rotation of the motor drives the rotation of the gear 1, and the rotation of the gear 1 drives the moving frame to move along the inner contour of the deformation frame mechanism, and the movement of the moving frame drives the cutting gun to move around, and the pipeline is automatically beveled, which is convenient for operation at the construction site, and there is no need to rotate and move the pipeline, which is convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline cutting devices, and in particular to an automatic cutting device for safe production of crude oil pipelines. Background Art

[0002] Most of the crude oil pipelines are located in the wild. In order to maintain the safety of crude oil pipelines and crude oil transportation, pipeline inspections and maintenance are required from time to time, including the repair and replacement of damaged pipelines. When maintaining the pipeline network, it is sometimes necessary to cut the original pipelines and spare pipelines. Cutting methods such as tangent, bevel and intersection line cutting can be selected according to needs.

[0003] The existing crude oil pipeline cutting device achieves bevel cutting by rotating the pipeline while numerically adjusting the position of the cutting head on the horizontal slide rail. The device occupies a large area and is not easy to move. It is generally used in a machine room and cannot be used in the field. There is a need for an automatic cutting device that is convenient for bevel cutting of pipelines in the field. Summary of the invention

[0004] In order to overcome the above technical problems, the purpose of the present invention is to provide an automated cutting device for safe production of crude oil pipelines. Through the arrangement of a deformable frame mechanism and a movable frame, a C-shaped frame 2 is plugged into a U-shaped frame to surround the pipeline. By adjusting the distance between the C-shaped frame 1 and the C-shaped frame 2, the shape of the inner contour of the deformable frame mechanism is adjusted, thereby changing the length of the inner contour of the deformable frame mechanism according to the need of the bevel cutting angle. The deformable frame mechanism is placed obliquely between the pipeline, and the rotation of the motor drives the gear 1 to rotate. The rotation of the gear 1 drives the movable frame to move along the inner contour of the deformable frame mechanism. The movement of the movable frame drives the cutting gun to move around, and the pipeline is automatically beveled, which is convenient for operation at the construction site. There is no need to rotate and move the pipeline, and it is easy to use.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] An automatic cutting device for safe production of crude oil pipelines, comprising a deformation frame mechanism and a moving frame, the deformation frame mechanism comprising a U-shaped frame and a C-shaped frame 2, the U-shaped frame and the C-shaped frame 2 are slidably connected, the inner side walls of the C-shaped frame 2 and the U-shaped frame are provided with inner slide grooves, both ends of the C-shaped frame 2 are provided with clamping slide grooves, the moving frame comprises a slider, the top end of the slider is slidably connected to the inner wall of the inner slide groove, the bottom end of the slider is fixedly connected to a fixed plate 1, one end of the fixed plate 1 is fixedly connected to an insertion rod, the other end of the fixed plate 1 is slidably sleeved with a sleeve rod, one end of the sleeve rod is fixedly connected to a fixed The second fixed plate, a tension spring is fixedly connected between the inner side wall of one end of the sleeve rod and the side wall of the other end of the fixed plate one, an axle rod is rotatably connected between the sleeve rod and the inner top surface of the second fixed plate, a gear one is fixedly sleeved on the outer wall of the axle rod, one end of the insertion rod is slidably connected to a movable plate, a transmission module is connected between the bottom end of the movable plate and the bottom end of the axle rod, a motor is fixedly connected to the top of the second fixed plate, and the output end of the motor is transmission-connected to the axle rod, a tooth groove is provided on the outer wall of one side of the C-shaped frame two and the U-shaped frame, the gear one is meshed with the C-shaped frame two, and the outer wall of one side of the fixed plate one is fixedly connected The adjusting mechanism includes a cutting gun, and the pipe is surrounded by plugging the C-shaped frame 2 with the U-shaped frame. The shape of the inner contour of the deformable frame mechanism is adjusted by adjusting the distance between the C-shaped frame 1 and the C-shaped frame 2, so as to change the length of the inner contour of the deformable frame mechanism according to the need of the bevel cutting angle. The deformable frame mechanism is placed obliquely between the pipe, and the rotation of the motor drives the gear 1 to rotate, and the rotation of the gear 1 drives the moving frame to move along the inner contour of the deformable frame mechanism. When the moving frame moves on the straight rod, the limiting rod 1 and the limiting rod 2 are in contact with the outer side wall of the straight rod. When the moving frame moves to the C-shaped When the gear is on the C-shaped frame two, the gear one moves from the straight rod one to the C-shaped frame two, the gear one is squeezed and moves away from the straight rod, the gear one meshes with the outer wall of the C-shaped frame two, the gear one drives the limit rod one to move away from the straight rod through the fixed plate two, so that the limit rod one is out of contact with the outer wall of the straight rod, and the fixed plate two drives the moving plate to move away from the straight rod through the transmission module, so that the limit rod two at the top of the moving plate moves outward and disengages from the straight rod, and contacts and engages with the outer wall of the C-shaped frame two, so as to realize the transition of the moving frame between the straight rod and the C-shaped frame two, thereby realizing the movement of the moving frame along the inner contour of the deformation frame mechanism to bevel the pipeline.

[0007] Furthermore, the U-shaped frame includes a C-shaped frame 1, and straight rods are fixedly connected to the middle positions of both ends of the C-shaped frame 1, and the width of the straight rods is smaller than the widths of the C-shaped frame 1 and the C-shaped frame 2, so that the two side walls of the straight rods are at a certain distance from the same side wall of the C-shaped frame 1, which facilitates the sliding connection between the C-shaped frame 1 and the straight rods.

[0008] Furthermore, one side of the top of the movable plate is rotatably connected to the limiting rod 2, and an inner side wall of the top side of the fixed plate 2 is rotatably connected to the limiting rod 1, so that the movable plate and the fixed plate 2 are conveniently connected to the straight rod or the C-shaped frame 1.

[0009] Furthermore, an avoidance groove is provided on the outer wall of the straight rod, a threaded hole is provided on the inner wall of the clamping slide groove, a threaded knob is screwed on the inner wall of the threaded hole, one end of the threaded knob is passed through the avoidance groove and screwed on the threaded hole, so that the C-shaped frame 2 is squeezed and fixed to the straight rod, thereby fixing the inner contour of the deformation frame mechanism.

[0010] The cam is connected with the gear train of the said sliding plate, and the gear train of the said sliding plate is connected with the gear train of the said sliding plate, and the gear train of the said sliding plate is connected with the gear train of the said sliding plate, so that the said cam can be turned away from the said gear train by the said gear train.

[0011] Furthermore, a slide rail is fixedly connected to the outer wall of one side of the fixed plate, a slide rod is slidably connected to the inner wall of the slide rail, an extrusion spring is fixedly connected between the top end of the slide rod and the inner top surface of the slide rail, the outer wall of the slide rod is fixedly connected to the cutting gun, and a quadrilateral frame is fixedly connected to the bottom end of the outer wall of the slide rod, the extrusion spring squeezes the slide rod downward, and the quadrilateral frame at the bottom end of the slide rod contacts the pipe wall, so that the bottom end of the cutting gun is always close to the pipe wall, which is convenient for the cutting gun to weld the pipe.

[0012] Furthermore, the quadrilateral frame includes two parallel cross bars, the middle position of the cross bars is rotatably connected to the outer side wall of the sliding bar, the two ends of the two cross bars are rotatably connected with vertical bars, the bottom ends of the vertical bars are rotatably connected with support wheels, the quadrilateral frame is parallel to one side wall of the C-shaped frame, so that the two support wheels are respectively located in the front and rear of the forward direction of the cutting gun, so that the two support wheels are away from the bottom end of the cutting gun while adapting to the curved surface of the outer wall of the pipe, so that the cutting gun is convenient to move along the curved surface of the pipe wall through the quadrilateral frame.

[0013] Furthermore, brackets are fixedly connected to both sides of the bottom end of the U-shaped frame to facilitate the placement and fixing of the deformation frame mechanism.

[0014] Beneficial effects of the present invention:

[0015] 1. Through the arrangement of the deformation frame mechanism and the moving frame, the C-shaped frame 2 is plugged into the U-shaped frame to surround the pipeline. By adjusting the distance between the C-shaped frame 1 and the C-shaped frame 2, the shape of the inner contour of the deformation frame mechanism is adjusted, so that the length of the inner contour of the deformation frame mechanism can be changed according to the need of the bevel angle. The deformation frame mechanism and the pipeline are placed obliquely. The rotation of the motor drives the gear 1 to rotate. The rotation of the gear 1 drives the moving frame to move along the inner contour of the deformation frame mechanism. When the moving frame moves on the straight rod, the limit rod 1 and the limit rod 2 are attached to the two sides of the outer wall of the straight rod. When the moving frame moves to the C-shaped frame 2, the gear 1 is moved from the straight rod to the straight rod. Rod 1 moves to C-shaped frame 2, gear 1 is squeezed and moves away from the straight rod, gear 1 meshes with the outer wall of C-shaped frame 2, gear 1 drives limit rod 1 away from the straight rod through fixed plate 2, so that limit rod 1 is out of contact with the outer wall of the straight rod, fixed plate 2 drives the moving plate away from the straight rod through the transmission module, so that limit rod 2 at the top of the moving plate moves outward and disengages from the straight rod, and contacts and engages with the outer wall of C-shaped frame 2, so that the moving frame moves along the inner contour of the deformation frame mechanism, and the movement of the moving frame drives the cutting gun to move around, automatically beveling the pipeline, which is convenient for operation at the construction site, and there is no need to rotate and move the pipeline, which is convenient to use;

[0016] 2. Through the setting of the quadrilateral frame, the quadrilateral frame is parallel to one side wall of the C-shaped frame, and the two support wheels are respectively located in the front and rear of the forward direction of the cutting gun, so that the two support wheels are away from the bottom end of the cutting gun while adapting to the arc surface of the outer wall of the pipe, so that the bottom end of the cutting gun is always close to the pipe wall when it moves, which is convenient for the cutting gun to cut and close. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of a C-shaped frame and a U-shaped frame in the present invention;

[0020] Figure 3 It is a schematic diagram of the overall front view structure of the present invention;

[0021] Figure 4 It is a structural schematic diagram of the connection state between the mobile frame and the straight rod in the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the mobile frame in the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of the regulating mechanism in the present invention;

[0024] Figure 7 It is a schematic diagram of the transmission module structure in the present invention;

[0025] Figure 8 It is a schematic diagram of the overall usage state structure of the present invention.

[0026] In the figure: 100, deformation frame mechanism; 110, C-shaped frame 1; 111, inner slide; 120, C-shaped frame 2; 121, clamping slide; 122, threaded hole; 123, threaded knob; 130, straight rod; 131, avoidance groove; 140, bracket; 200, mobile frame; 210, slider; 211, placement slide; 220, fixed plate 1; 221, insertion rod; 222, tension spring; 230, sleeve rod; 231, fixed plate 2; 232, limit rod 1; 233, shaft rod; 234, gear 1; 240, motor; 250, transmission module; 251, connecting rod 1; 252, connecting rod 2; 253, tooth plate; 254, gear 2; 260, moving plate; 261, limit rod 2; 300, adjustment mechanism; 310, slide rail; 311, extrusion spring; 320, slide rod; 330, cutting gun; 340, quadrilateral frame; 341, cross bar; 342, vertical bar. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-8As shown, an automatic cutting device for safe production of crude oil pipelines includes a deformation frame mechanism 100 and a moving frame 200. The deformation frame mechanism 100 includes a U-shaped frame and a C-shaped frame 120. The U-shaped frame and the C-shaped frame 120 are slidably connected. The inner side walls of the C-shaped frame 120 and the U-shaped frame are provided with inner slide grooves 111. Both ends of the C-shaped frame 120 are provided with clamping slide grooves 121. The moving frame 200 includes a slider 210. The top of the slider 210 is slidably connected to the inner wall of the inner slide groove 111. The bottom end of the slider 210 is fixedly connected to a fixed plate 220. One end of the fixed plate 220 is fixedly connected to an insertion rod 221. The other end of the fixed plate 220 is slidably sleeved with a sleeve rod 230. One end of the sleeve rod 230 is fixedly connected to a fixed plate 231. One end of the sleeve rod 230 is fixedly connected to a fixed plate 231. A tension spring 222 is fixedly connected between the inner side wall of the end and the other end side wall of the fixed plate 1 220, a shaft rod 233 is rotatably connected between the sleeve rod 230 and the inner top surface of the fixed plate 231, a gear 1 234 is fixedly sleeved on the outer wall of the shaft rod 233, one end of the insertion rod 221 is slidably connected to a movable plate 260, a transmission module 250 is connected between the bottom end of the movable plate 260 and the bottom end of the shaft rod 233, a motor 240 is fixedly connected to the top of the fixed plate 231, and the output end of the motor 240 is transmission-connected to the shaft rod 233, a tooth groove is provided on the outer wall of one side of the C-shaped frame 2 120 and the U-shaped frame, the gear 1 234 is meshed with the C-shaped frame 2 120, an adjustment mechanism 300 is fixedly connected to the outer wall of one side of the fixed plate 1 20, and the adjustment mechanism 300 includes a cutting gun 330, The pipeline is surrounded by plugging the C-shaped frame 120 with the U-shaped frame. The shape of the inner contour of the deformation frame mechanism 100 is adjusted by adjusting the distance between the C-shaped frame 110 and the C-shaped frame 120, so that the length of the inner contour of the deformation frame mechanism 100 is changed according to the need of the bevel angle. The deformation frame mechanism 100 is placed obliquely between the pipeline, and the motor 240 rotates to drive the gear 1 234 to rotate. The gear 1 234 rotates to drive the moving frame 200 to move along the inner contour of the deformation frame mechanism 100. When the moving frame 200 moves on the straight rod 130, the limit rod 1 232 and the limit rod 261 are attached to the two sides of the outer wall of the straight rod 130. When the moving frame 200 moves to the C-shaped frame 120, the gear 1 234 moves from the straight rod 130 to the straight rod 130. The movable plate 260 moves away from the straight rod 130 through the fixed plate 231, so that the limiting rod 232 is out of contact with the outer wall of the straight rod 130. The fixed plate 231 drives the movable plate 260 to move away from the straight rod 130 through the transmission module 250, so that the limiting rod 261 at the top of the movable plate 260 moves outward and is out of contact with the outer wall of the C-shaped frame 120, thereby realizing the transition of the movable frame 200 between the straight rod 130 and the C-shaped frame 120, thereby realizing the movement of the movable frame 200 along the inner contour of the deformation frame mechanism 100 to bevel the pipeline.

[0029] The U-shaped frame includes a C-shaped frame 110, and a straight rod 130 is fixedly connected to the middle position of both ends of the C-shaped frame 110. The width of the straight rod 130 is smaller than the width of the C-shaped frame 110 and the C-shaped frame 2 120, so that the two side walls of the straight rod 130 are at a certain distance from the same side wall of the C-shaped frame 110, which is convenient for the C-shaped frame 110 to be slidably connected with the straight rod 130. The top side of the movable plate 260 is rotatably connected to the limiting rod 261, and the top side and inner side wall of the fixed plate 231 are rotatably connected to the limiting rod 1 232, which is convenient for the movable plate 260 and the fixed plate 231 to be clamped to the straight rod 130 or the C-shaped frame 110.

[0030] An avoidance groove 131 is provided on the outer wall of the straight rod 130, and a threaded hole 122 is provided on the inner wall of the clamping slide groove 121. A threaded knob 123 is screwed and connected to the inner wall of the threaded hole 122. One end of the threaded knob 123 passes through the avoidance groove 131 and is screwed and connected to the threaded hole 122, so that the C-shaped frame 120 and the straight rod 130 are squeezed and fixed, so as to fix and adjust the inner contour of the deformation frame mechanism 100. The transmission module 250 includes a connecting rod 1 251, one end of the connecting rod 1 251 is rotatably sleeved with the bottom end of the shaft rod 233, a connecting rod 252 is fixedly connected to a side wall of the bottom end of the movable plate 260, and the other end of the connecting rod 1 251 and one end of the connecting rod 2 252 are fixedly connected to a toothed plate 253. A placement slide groove 211 is provided on one side wall of the slider 210, and the placement A gear 254 is rotatably connected between the inner top surface and the middle position of the inner bottom surface of the placement slide groove 211, and the two tooth plates 253 are meshed with the gear 254. The gear plate 253 is slidably connected with the placement slide groove 211. The fixed plate 231 drives the connecting rod 1 251 to move away from the straight rod 130 through the sleeve rod 230. The connecting rod 1 251 drives the gear 254 to rotate through the corresponding tooth plate 253. The gear 254 drives the movable plate 260 to move away from the straight rod 130 through the connecting rod 2 252 through another tooth plate 253, so that the limiting rod 261 at the top of the movable plate 260 moves outward and disengages from the straight rod 130, so that the movable plate 260 and the fixed plate 231 move toward each other, thereby facilitating the limiting rod 1 232 and the limiting rod 2 261 to move toward each other.

[0031] The outer wall of one side of the fixed plate 220 is fixedly connected with a slide rail 310, and the inner wall of the slide rail 310 is slidably connected with a slide rod 320. An extrusion spring 311 is fixedly connected between the top of the slide rod 320 and the inner top surface of the slide rail 310. The outer wall of the slide rod 320 is fixedly connected to the cutting gun 330, and the bottom end of the outer wall of the slide rod 320 is fixedly connected to a quadrilateral frame 340. The extrusion spring 311 squeezes the slide rod 320 downward, and the quadrilateral frame 340 at the bottom end of the slide rod 320 contacts the pipe wall, so that the bottom end of the cutting gun 330 is always close to the pipe wall, which is convenient for the cutting gun 330 to weld the pipe. The quadrilateral frame 340 includes two parallel cross bars 341 The middle position of the cross bar 341 is rotatably connected to the outer wall of the sliding bar 320, and the two ends of the two cross bars 341 are rotatably connected with a vertical bar 342, and the bottom end of the vertical bar 342 is rotatably connected with a supporting wheel. The quadrilateral frame 340 is parallel to one side wall of the C-shaped frame 110, so that the two supporting wheels are respectively located in the front and rear of the forward direction of the cutting gun 330, so that the two supporting wheels are away from the bottom end of the cutting gun 330 while adapting to the arc surface of the outer wall of the pipeline, so that the cutting gun 330 can move along the arc surface of the pipe wall through the quadrilateral frame 340. The bottom end of the U-shaped frame is fixedly connected with brackets 140 on both sides, which is convenient for placing and fixing the deformation frame mechanism 100.

[0032] Working principle: When in use, the C-shaped frame 120 and the U-shaped frame are plugged together to surround the pipeline, and the inner contour of the deformation frame mechanism 100 is adjusted by adjusting the distance between the C-shaped frame 110 and the C-shaped frame 120. One end of the threaded knob 123 passes through the avoidance groove 131 and is screwed and connected with the threaded hole 122, so that the C-shaped frame 120 and the straight rod 130 are squeezed and fixed, thereby fixing and adjusting the inner contour of the deformation frame mechanism 100. The motor 240 rotates to drive the gear 1 234 to rotate, and the gear 1 234 rotates to drive the moving frame 200 along the deformation frame mechanism 100. When the moving frame 200 moves on the straight rod 130, the limiting rod 1 232 and the limiting rod 261 are in contact with the outer side walls of the straight rod 130. When the moving frame 200 moves onto the C-shaped frame 120, since the width of the straight rod 130 is smaller than the width of the C-shaped frame 1 110 and the C-shaped frame 120, when the gear 1 234 moves from the straight rod 130 to the C-shaped frame 120, the gear 1 234 is squeezed away from the straight rod 130 and moves. The gear 1 234 meshes with the outer side wall of the C-shaped frame 120, and the gear 1 234 passes through the fixing plate 2. The first limit rod 231 drives the first limit rod 232 away from the straight rod 130, so that the first limit rod 232 is out of contact with the outer wall of the straight rod 130, and the second fixed plate 231 drives the first connection rod 251 to move away from the straight rod 130 through the sleeve rod 230, and the first connection rod 251 drives the second gear 254 to rotate through the corresponding tooth plate 253, and the second gear 254 drives the moving plate 260 to move away from the straight rod 130 through the second connection rod 252 through another tooth plate 253, so that the second limit rod 261 at the top of the moving plate 260 moves outward and is out of contact with the outer side of the second C-shaped frame 120. The wall contact card connection realizes the transition of the movable frame 200 between the straight rod 130 and the C-shaped frame 120, so that the movable frame 200 moves along the inner contour of the deformable frame mechanism 100. When the deformable frame mechanism 100 and the pipeline are inclined, the movable frame 200 drives the cutting gun 330 to move along the inner contour of the deformable frame mechanism 100, so as to perform inclined cutting on the pipeline. Through the setting of the adjustment mechanism 300, the sliding rod 320 moves through the quadrilateral frame 340 and contacts the outer wall of the pipeline under the action of the extrusion spring 311, so as to maintain the distance between the bottom end of the cutting gun 330 and the outer wall of the pipeline.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] The above contents are merely examples and explanations of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the invention or exceed the scope defined by the claims, they shall all fall within the protection scope of the present invention.

Claims

1. An automatic cutting device for safe production of crude oil pipelines, characterized in that: The invention comprises a deformation frame mechanism (100) and a movable frame (200), wherein the deformation frame mechanism (100) comprises a U-shaped frame and a second C-shaped frame (120), wherein the U-shaped frame and the second C-shaped frame (120) are slidably connected, inner side walls of the second C-shaped frame (120) and the U-shaped frame are provided with inner sliding grooves (111), and both ends of the second C-shaped frame (120) are provided with clamping sliding grooves (121), and the movable frame (200) comprises a sliding block (210). The top end of the slider (210) is slidably connected to the inner wall of the inner slide groove (111), the bottom end of the slider (210) is fixedly connected to a fixing plate (220), one end of the fixing plate (220) is fixedly connected to an insertion rod (221), the other end of the fixing plate (220) is slidably sleeved with a sleeve rod (230), one end of the sleeve rod (230) is fixedly connected to a fixing plate (231), and the inner side wall of one end of the sleeve rod (230) is fixedly connected to the fixing plate (231). A tension spring (222) is fixedly connected between the side walls of the other end of the plug rod (220), a shaft rod (233) is rotatably connected between the sleeve rod (230) and the inner top surface of the second fixed plate (231), a gear (234) is fixedly sleeved on the outer wall of the shaft rod (233), one end of the plug rod (221) is slidably connected to a movable plate (260), and a transmission module (250) is connected between the bottom end of the movable plate (260) and the bottom end of the shaft rod (233) A motor (240) is fixedly connected to the top of the second fixing plate (231), and the output end of the motor (240) is transmission-connected to the shaft (233). The outer walls of one side of the C-shaped frame (120) and the U-shaped frame are provided with tooth grooves. The gear (234) is meshed with the C-shaped frame (120). An adjustment mechanism (300) is fixedly connected to the outer wall of one side of the fixing plate (220), and the adjustment mechanism (300) includes a cutting gun (330).

2. The automatic cutting device for safe production of crude oil pipeline according to claim 1 is characterized in that: The U-shaped frame comprises a C-shaped frame 1 (110), and straight rods (130) are fixedly connected at the middle positions of both ends of the C-shaped frame 1 (110), and the width of the straight rods (130) is smaller than the width of the C-shaped frame 1 (110) and the C-shaped frame 2 (120).

3. The automatic cutting device for safe production of crude oil pipeline according to claim 1 is characterized in that: One side of the top end of the movable plate (260) is rotatably connected to the second limiting rod (261), and an inner side wall of the top side of the second fixed plate (231) is rotatably connected to the first limiting rod (232).

4. The automatic cutting device for safe production of crude oil pipeline according to claim 2 is characterized in that: The outer wall of the straight rod (130) is provided with an avoidance groove (131), the inner wall of the clamping sliding groove (121) is provided with a threaded hole (122), and the inner wall of the threaded hole (122) is screwed and connected with a threaded knob (123).

5. The automatic cutting device for safe production of crude oil pipeline according to claim 1 is characterized in that: The transmission module (250) includes a connecting rod 1 (251), one end of which is rotatably sleeved with the bottom end of the shaft rod (233), a connecting rod 2 (252) is fixedly connected to a side wall of the bottom end of the movable plate (260), the other end of the connecting rod 1 (251) and one end of the connecting rod 2 (252) are fixedly connected to a tooth plate (253), a side wall of the slider (210) is provided with a placement slide groove (211), a gear 2 (254) is rotatably connected between the inner top surface and the inner bottom surface of the placement slide groove (211), the two gear plates (253) are meshed with the gear 2 (254), and the gear plate (253) is slidably connected to the placement slide groove (211).

6. The automatic cutting device for safe production of crude oil pipeline according to claim 1 is characterized in that: A slide rail (310) is fixedly connected to an outer wall of one side of the fixed plate (220), a slide rod (320) is slidably connected to an inner wall of the slide rail (310), an extrusion spring (311) is fixedly connected between the top end of the slide rod (320) and the inner top surface of the slide rail (310), an outer wall of the slide rod (320) is fixedly connected to a cutting gun (330), and a quadrilateral frame (340) is fixedly connected to the bottom end of an outer wall of the slide rod (320).

7. The automatic cutting device for safe production of crude oil pipeline according to claim 6 is characterized in that: The quadrilateral frame (340) comprises two parallel cross bars (341), the middle position of the cross bars (341) is rotatably connected to the outer side wall of the slide bar (320), a vertical bar (342) is rotatably connected between the two ends of the two cross bars (341), and the bottom end of the vertical bar (342) is rotatably connected to a support wheel.

8. The automatic cutting device for safe production of crude oil pipeline according to claim 1 is characterized in that: Brackets (140) are fixedly connected to both sides of the bottom end of the U-shaped frame.

Images