CN116197694A

CN116197694A - Movable pipeline cutting auxiliary device

Info

Publication number: CN116197694A
Application number: CN202310204144.8A
Authority: CN
Inventors: 傅健; 林小诗; 邓凯; 卫旭敏; 王春晓; 宋广吉; 李冰; 付宝成; 陈星河; 唐美琴; 郭少林; 华日照
Original assignee: COOEC Fluor Heavy Industries Co Ltd
Current assignee: COOEC Fluor Heavy Industries Co Ltd
Priority date: 2023-03-06
Filing date: 2023-03-06
Publication date: 2023-06-02
Anticipated expiration: 2043-03-06
Also published as: CN116197694B

Abstract

The application relates to a movable pipeline cutting auxiliary device. The movable pipe cutting auxiliary device comprises a pipe supporting assembly, wherein the pipe supporting assembly comprises: the hydraulic cylinder is rotatably provided with a connecting piece at one side, an air bag block is arranged around the periphery of the connecting piece, the air bag block is connected with the hydraulic cylinder, and oil is filled into the air bag block when the hydraulic cylinder moves, so that the air bag block is inflated; the support assembly is used for supporting the pipeline, the support assembly is provided with a middle point line, the connecting piece is provided with an axis, and the extension line of the middle point line of the support assembly is perpendicular to and intersects with the extension line of the axis of the connecting piece. The movable pipeline cutting auxiliary device is convenient to move, the position of the positioning clamp can be adjusted according to the length of the pipeline, and the pipeline can be positioned conveniently.

Description

Movable pipeline cutting auxiliary device

Technical Field

The application relates to the field of pipeline positioning, in particular to a movable pipeline cutting auxiliary device.

Background

The groove is cut before the steel plate coiled pipe is coiled, but the actual extension length is confirmed according to design requirements after the construction site coiled pipe is coiled, so that the situation that the rest quantity is required to be cut often occurs. After the allowance cutting procedure is carried out, the construction site needs to cut the groove of the pipeline after the extension.

However, the pipeline positioning equipment in the related art is large in integral structure and difficult to move, so that the large-diameter pipeline groove cutting can be completed only in a workshop, multiple times of transportation are needed, and meanwhile, the position of the positioning clamp cannot be adjusted according to the length of the pipeline, so that the construction cost is high and the efficiency is low.

Disclosure of Invention

In view of this, this application provides a movable pipeline cutting auxiliary device, movable pipeline cutting auxiliary device is convenient for remove, can adjust the position of positioning fixture according to the length of pipeline, the location of pipeline of being convenient for.

The application provides the following technical scheme:

a mobile pipe cutting assistance device comprising:

a strut assembly, the strut assembly comprising: the hydraulic cylinder is rotatably provided with a connecting piece at one side, an air bag block is arranged around the periphery of the connecting piece, the air bag block is connected with the hydraulic cylinder, and oil is filled into the air bag block when the hydraulic cylinder moves, so that the air bag block is inflated;

the support assembly is used for supporting the pipeline, the support assembly is provided with a middle point line, the connecting piece is provided with an axis, and the extension line of the middle point line of the support assembly is perpendicular to and intersects with the extension line of the axis of the connecting piece.

Further, the support assembly includes: guide holder and support piece;

the support includes: a first support plate and a second support plate; the guide seat is provided with a first sliding rail and a second sliding rail, and the first sliding rail and the second sliding rail are sequentially arranged along the axial direction of the connecting piece;

the first support plate is arranged in the first sliding rail, the second support plate is arranged in the second sliding rail, the first support plate is provided with a first concave part, the second support plate is provided with a second concave part, and the first concave part and the second concave part are enclosed to form a fixed part;

the first concave part, the second concave part is all detachable be provided with the gyro wheel.

Further, the guide holder is provided with a plurality of locating holes along the moving direction of the first support plate or the second support plate, a plurality of fixing holes are formed in the first support plate and the second support plate, and the fixing holes are matched with the locating holes to limit the movement of the first support plate along the first slide rail and the second support plate along the second slide rail.

Further the movable pipe cutting auxiliary device further comprises: a lifting assembly;

the lifting assembly includes: the device comprises a first supporting rod, a second supporting rod, a rack and a pawl gear;

the first support rod is sleeved in the second support rod, a rack is arranged on the outer side wall of the first support rod, a pawl gear is arranged on the second support rod, and the pawl gear is matched with the rack so that the first support rod moves along the length direction of the second support rod;

one end of the first supporting rod, which is far away from the second supporting rod, is provided with a mounting plate, and one side of the mounting plate, which is far away from the second supporting plate, is used for arranging a hydraulic cylinder.

Further, the movable pipe cutting auxiliary device further includes: a transmission mechanism;

the transmission mechanism comprises: the device comprises a motor, a speed reducer, a driving gear, a driven gear and a chain;

the motor set up in the below of mounting panel, the motor with the reduction gear is connected the reduction gear has the pivot, be provided with the driving gear in the pivot, driven gear set up in on the connecting piece, the chain is connected the driving gear with driven gear drives the connecting piece is rotatory.

Further, the movable pipe cutting auxiliary device further includes: the bottom plate, the bottom plate has seted up a plurality of penetrations the through-hole of bottom plate, lifting unit set up in on the bottom plate.

Further, the bottom plate is detachably provided with a guide rail along the axis direction of the connecting piece, two sides of the guide seat are provided with lug plates used for enabling the guide rail to pass through, and the guide seat can move along the guide rail.

Further, the hydraulic cylinder is provided with a piston and a piston rod, a thrust bearing is arranged at one end of the piston rod, which is far away from the piston, the thrust bearing is connected with a screw rod, and a rotating piece is arranged at one end of the screw rod, which is far away from the piston;

the one end of pneumatic cylinder has the end cover, the end cover is kept away from the piston sets up, be provided with the screw hole on the end cover, the lead screw set up in threaded hole.

Further, the hydraulic cylinder is far away from one end of the piston rod is provided with an oil pipe, the oil pipe is connected with a safety valve and an oil gauge, and the safety valve and the oil gauge are connected with the air bag block.

Further, the surface of the air bag block is covered with an anti-slip layer.

Through cutting auxiliary device with movable pipeline in this application into two parts, can select both cooperation to use or exclusive use according to the length of pipeline, when the length of pipeline is shorter, stretch into in the pipeline with the connecting piece, charge oil in to the gasbag piece through removing the pneumatic cylinder, make the gasbag piece expand, realize fixing to the pipeline, when the pipeline is longer, select supporting component through the actual length of pipeline, it is fixed with the pipeline through pipe stay subassembly and supporting component cooperation, pipe stay subassembly and supporting component separately set up, not only be convenient for transport, and positioning accuracy is higher, simultaneously, the connecting piece is rotatable to be connected with the pneumatic cylinder, the cutting of pipeline of being convenient for.

Drawings

In order to more clearly illustrate the technical solutions of the examples of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic overall structure of a movable pipe cutting auxiliary device according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a strut assembly according to an embodiment of the present disclosure;

FIG. 3 is a cross-sectional view of a hydraulic cylinder;

FIG. 4 is a schematic structural view of a support assembly according to another embodiment of the present application;

FIG. 5 is a schematic structural view of a support assembly according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a lifting assembly according to an embodiment of the present application.

Reference numerals illustrate:

100. a movable pipe cutting auxiliary device; 10. a tube support assembly; 11. a hydraulic cylinder; 111. a piston; 112. a piston rod; 113. a screw rod; 114. a thrust bearing; 115. a rotating member; 116. an end cap; 117. a threaded hole; 12. a connecting piece; 13. an airbag block; 131. an anti-slip layer; 20. a support assembly; 21. a guide seat; 211. a first slide rail; 212. a second slide rail; 213. positioning holes; 214. ear plates; 22. a support; 221. a first support plate; 2211. a first concave portion; 2212. a fixing hole; 222. a second support plate; 2221. a second concave portion; 23. a roller; 30. a lifting assembly; 31. a first support bar; 32. a second support bar; 33. a rack; 34. a pawl gear; 40. a transmission mechanism; 41. a motor; 42. a speed reducer; 43. a drive gear; 44. a driven gear; 45. a chain; 50. a bottom plate; 51. a through hole; 52. a guide rail; 53. and (3) mounting a plate.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without undue burden, are within the scope of the present application.

The terms first, second and the like in the description and in the claims of the present application and in the above-described figures, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" or "an implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment or implementation may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

With the development of human society, the energy demand is gradually increased, and the exploitation of offshore oil is gradually becoming an important target for global oil exploitation, so that the jacket platform is increasingly widely applied in oil exploration and exploitation. In the construction and construction process of large pile-type projects such as an oil-gas jacket and a wind-power jacket, the prefabrication workload of pipelines is huge, most pipelines are large-diameter coiled pipes, and in the normal case, the steel plate coiled pipes are firstly cut by a groove and then coiled, but because the actual extension length needs to be confirmed according to design requirements after the construction site coiled pipe extension process is finished, the situation that the rest of pipelines need to be cut often occurs, and after the allowance cutting process is carried out, the construction site needs to cut the groove again for the extended pipelines.

However, the pipeline positioning equipment in the prior art is large in integral structure and difficult to move, so that the groove cutting of the large-diameter pipeline can be completed only in a workshop, the pipeline needs to be transported for a plurality of times, and meanwhile, the position of the positioning clamp cannot be adjusted according to the length of the pipeline, so that the construction cost is high and the efficiency is low.

In view of this, this embodiment provides a movable pipe cutting auxiliary device, movable pipe cutting auxiliary device is convenient for remove, can adjust the position of positioning fixture according to the length of pipeline, the location of pipeline of being convenient for.

Referring to fig. 1, a movable pipe cutting auxiliary device 100 includes: a strut assembly 10, the strut assembly comprising: a hydraulic cylinder 11, wherein a connecting piece 12 is rotatably arranged on one side of the hydraulic cylinder 11, an air bag block 13 is arranged around the periphery of the connecting piece 12, the air bag block 13 is connected with the hydraulic cylinder 11, and when the hydraulic cylinder 11 moves, oil is filled in the air bag block 13, so that the air bag block 13 is inflated; a plurality of support assemblies 20, said support assemblies 20 for supporting a pipe, said support assemblies 20 having a mid-line, said connector 12 having an axis, an extension of said mid-line of said support assemblies 20 being perpendicular to and intersecting an extension of said axis of said connector 12.

Through with movable pipeline cutting auxiliary device 100 for two parts in this application, can select both cooperation to use or exclusive use according to the length of pipeline, when the length of pipeline is shorter, stretch into in the pipeline with connecting piece 12, fill oil in to gasbag piece 13 through removing pneumatic cylinder 11, make gasbag piece 13 expand, realize fixing to the pipeline, when the pipeline is longer, select supporting component 20 through the actual length of pipeline, it is fixed with the pipeline through supporting component 10 and supporting component 20 cooperation, supporting component 10 and supporting component 20 separate setting, not only be convenient for transport, and positioning accuracy is higher, simultaneously, connecting piece 12 rotatable and pneumatic cylinder 11 are connected, the cutting of the pipeline of being convenient for.

Referring to fig. 2, in some embodiments, the support assembly 20 includes: a guide holder 21 and a support 22; the support 22 includes: the guide seat 21 has a first sliding rail 211 and a second sliding rail 212, and the first sliding rail 211 and the second sliding rail 212 are sequentially arranged along the axis direction of the connecting piece 12; the first support plate 221 is disposed in the first sliding rail 211, the second support plate 222 is disposed in the second sliding rail 212, the first support plate 221 has a first recess 2211, the second support plate 222 has a second recess 2221, and the first recess 2211 and the second recess 2221 enclose a fixing portion; the first recess 2211 and the second recess 2221 are all detachably provided with rollers 23.

It can be appreciated that the shapes of the first recess 2211 and the second recess 2221 are 1/4 circles, after the first recess 2211 and the second recess 2221 are positioned, the guide seat 21 is formed by splicing steel plates, a first sliding rail 211 and a second sliding rail 212 are arranged in the guide seat, the first sliding rail 211 and the second sliding rail 212 are sequentially arranged, a first supporting plate 221 in the first sliding rail 211 can linearly move along the first sliding rail 211, a second supporting plate 222 in the second sliding rail 212 can linearly move along the second sliding rail 212, and the sizes of the first recess 2211 and the second recess 2221 are adjusted, so that the sizes of the first recess 2211 and the second recess 2221 influence the sizes of the fixed pipeline; therefore, when the diameter of the pipe is small, the distance between the first support plate 221 and the second support plate 222 is small; when the diameter of the pipe is large, the distance between the first support plate 221 and the second support plate 222 is large; if the adjusted distance between the first support plate 221 and the second support plate 222 cannot achieve a good fixing effect on the pipeline, the pipeline can be supported by the first support plate 221 and the second support plate 222, so that the positioning accuracy of the support 22 is improved, and the detachable connection between the first support plate 221 and the first sliding rail 211 and the detachable connection between the second support plate 222 and the second sliding rail 212 are also convenient for the movement and transportation of the support 22.

It will be appreciated that the support assembly 20 may be provided in a plurality of shapes, and sequentially arranged along a direction away from the strut assembly, the specific number of the shapes is determined according to the length of the pipe and the diameter and quality of the pipe, the rollers 23 provided at the first recess 2211 and the second recess 2221 are used for assisting the rotation of the pipe, the shapes may be provided along the first recess 2211 or the second recess 2221, the rollers 23 may be provided at least 2 shapes along the first recess 2211 or the second recess 2221, the first recess 2211 and the second recess 2221 are provided with a plurality of support holes for installing the rollers 23, and when the pipe diameters are different, the appropriate support holes are selected for installing the rollers 23 so as to improve the stability of the pipe during rotation.

Referring to fig. 5, in some embodiments, the guide seat 21 is provided with a plurality of positioning holes 213 along the moving direction of the first support plate 221 or the second support plate 222, the first support plate 221 and the second support plate 222 are provided with a plurality of fixing holes 2212, and the fixing holes 2212 cooperate with the positioning holes 213 to limit the movement of the first support plate 221 along the first sliding rail 211 and the second support plate 222 along the second sliding rail 212.

It can be appreciated that the two sides of the guide seat 21 are provided with a plurality of positioning holes 213, the first support plate 221 and the second support plate 222 are provided with a plurality of positioning holes 213, the positioning holes 213 and the fixing holes 2212 are provided at the same position, the aperture of the positioning holes 213 and the aperture of the fixing holes 2212 are the same, when cutting pipes with different diameters, the positions of the first support plate 221 or the second support plate 222 need to be adjusted or replaced, when the first support plate 221 or the second support plate 222 is adjusted to a proper position, the first support plate 221 or the second support plate 222 passes through the positioning holes 213 and the fixing holes 2212 through bolts, and then the first support plate 221 and the second support plate 222 are fixed on the guide seat 21, so that the first support plate 221 or the second support plate 222 is prevented from being displaced during the cutting or fixing process, and the positioning accuracy of the pipes is prevented from being affected.

Referring to fig. 2 or 6, in some embodiments, the movable pipe cutting assistance apparatus 100 further includes: a lifting assembly 30; the lifting assembly 30 includes: a first support bar 31, a second support bar 32, a rack 33, and a pawl gear 34; the first support rod 31 is sleeved in the second support rod 32, a rack 33 is arranged on the outer side wall of the first support rod 31, a pawl gear 34 is arranged on the second support rod 32, and the pawl gear 34 is matched with the rack 33 so that the first support rod 31 moves along the length direction of the second support rod 32; one end of the first supporting rod 31, which is far away from the second supporting rod 32, is provided with a mounting plate 53, and one side of the mounting plate 53, which is far away from the second supporting plate 222, is used for arranging the hydraulic cylinder 11.

It is to be appreciated that the lifting assembly 30 is used for adjusting the height of the supporting tube assembly 10, the first supporting rod 31 in the lifting assembly 30 is sleeved in the second supporting rod 32 and can move along the length direction of the second supporting rod 32, specifically, a rack 33 is arranged on one side wall of the first supporting rod 31, a square hole (note that the square hole and the rack 33 are arranged on the side wall in the same direction) is formed in the second supporting rod 32, a pawl gear 34 is arranged outside the square hole, the pawl gear 34 is matched with the rack 33, the supporting tube assembly 10 is adjusted, specifically, after the lifting support and the adjustment are finished according to the diameter and the length of a cut steel tube, the gear on the lifting support is locked through the pawl gear 34, and the sliding of the first supporting rod 31 is avoided.

In some embodiments, the mobile pipe cutting assistance device 100 further comprises: a transmission mechanism 40; the transmission mechanism 40 includes: a motor 41, a speed reducer 42, a driving gear 43, a driven gear 44, and a chain 45; the motor 41 is arranged below the mounting plate, and the motor 41 is connected with the speed reducer 42; the speed reducer 42 has a rotating shaft, a driving gear 43 is disposed on the rotating shaft, the driven gear 44 is disposed on the connecting piece 12, and the chain 45 connects the driving gear 43 and the driven gear 44, so as to drive the connecting piece 12 to rotate.

It can be understood that the pipe needs to rotate during cutting, so the transmission mechanism 40 is used for driving the connecting piece 12 to rotate, the motor 41 is arranged below the lifting mechanism, the transmission shaft of the motor 41 is connected with the speed reducer 42, the driving gear 43 is arranged on the rotating shaft of the speed reducer 42, the driven gear 44 is arranged on the connecting piece 12, and the driving gear 43 and the driven gear 44 are connected through the chain 45, so that the driving gear 43 drives the driven gear 44 to rotate, and then drives the connecting piece 12 to rotate; specifically, the connector 12 is a turntable.

In some embodiments, the mobile pipe cutting assistance device 100 further comprises: the bottom plate 50, the bottom plate 50 has a plurality of through holes 51 penetrating the bottom plate 50, and the lifting assembly 30 is disposed on the bottom plate 50.

It will be appreciated that the bottom plate 50 is disposed below the lifting assembly 30, the bottom plate 50 is used for supporting the supporting tube assembly 10, and a plurality of through holes 51 penetrating through the bottom plate 50 are formed below the bottom plate 50 for facilitating the transportation of the device, and in particular, the device can be transported by a forklift.

Referring to fig. 4, in some embodiments, the bottom plate 50 is detachably provided with a guide rail 52 along the axis of the connecting member 12, two sides of the guide seat 21 are provided with ear plates 214 for passing the guide rail 52, and the guide seat 21 can move along the guide rail 52.

It can be appreciated that the guide rails 52 are arranged on two sides of the bottom plate 50, the guide rails 52 extend along one end far away from the supporting tube assembly 10, the lug plates 214 are arranged on two sides of the guide seat 21, the through holes 51 are formed in the lug plates 214, the guide rails 52 can penetrate through the through holes 51 in the lug plates 214, the guide rails 52 play a limiting role on the guide seat 21, meanwhile, the guide seat 21 can move along the guide rails 52, and when the distance of the guide seat 21 needs to be adjusted, the guide rails 52 only need to move to a preset position without secondary adjustment, so that the efficiency and the positioning accuracy in positioning are improved. Specifically, the guide rail 52 is divided into a first guide bar and a second guide bar.

Referring to fig. 3, in some embodiments, the hydraulic cylinder 11 has a piston 111 and a piston rod 112, wherein a thrust bearing 114 is disposed at an end of the piston rod 112 away from the piston 111, the thrust bearing 114 is connected to a screw 113, and a rotating member 115 is disposed at an end of the screw 113 away from the piston 111; an end cover 116 is arranged at one end of the hydraulic cylinder 11, a threaded hole 117 is formed in the end cover 116, which is far away from one end of the connecting piece 12, of the hydraulic cylinder 11, and the screw rod 113 is arranged in the threaded hole 117.

It can be understood that the hydraulic cylinder 11 is internally provided with a piston 111 and a piston rod 112, one end of the piston rod 112 far away from the piston 111 is provided with a thrust bearing 114, a screw rod 113 is connected with the piston rod 112 through the thrust bearing 114, meanwhile, an end cover 116 of one end of the hydraulic cylinder 11 far away from the piston 111 is provided with a threaded hole 117, the screw rod 113 passes through the threaded hole 117 to be connected with the piston 111, when the screw rod 113 is rotated, the screw rod 113 pushes the piston 111 to move, hydraulic oil in the piston 111 is pushed into the air bag block 13, the hydraulic energy is converted into mechanical energy, the air bag block 13 is expanded, and the positioning of a pipeline is realized from the inside of the pipeline; the screw 113 is provided with a rotating member 115 at one end far away from the piston rod 112, and the screw 113 is driven to rotate by the rotating member 115, and the rotating member 115 may be a hand wheel, a motor 41, or other components capable of rotating the screw 113.

In some embodiments, an oil pipe is disposed at an end of the hydraulic cylinder 11 away from the piston rod 112, the oil pipe is connected with the safety valve and an oil gauge, and the safety valve and the oil gauge are connected with the air bag block 13

It can be understood that an oil outlet is formed on the hydraulic cylinder 11, the oil outlet is arranged on one side of the hydraulic cylinder 11 far away from the screw rod 113, the oil outlet is connected with the screw rod 113, the piston 111 is moved by rotating the screw rod, hydraulic oil is discharged from the hydraulic cylinder 11 and flows into the air bag to expand the air bag, a reversing valve is further connected with the oil pipe, and after cutting is finished, the hydraulic oil flows back to the hydraulic cylinder 11 by adjusting the position of the reversing valve in three positions, so that the pipeline can be detached.

In some embodiments, the surface of the airbag block 13 is covered with an anti-slip layer 131, and the anti-slip layer 131 may be a rubber anti-slip layer 131 or a silica gel anti-slip layer 131, so as to improve the friction between the pipe and the connecting piece 12, so as to improve the positioning accuracy and the positioning stability.

Specifically, during operation, the device is moved to a construction area through the through hole 51 on the bottom plate 50 by using a forklift, the supporting component 20 and the supporting pipe component 10 are positioned on the same straight line by using the guide rail 52, then the lifting component 30 and the supporting component 20 are adjusted according to the diameter and the length of a required cut steel pipe, after the adjustment is finished, the gear on the lifting component 30 is locked by using the pawl gear 34, sliding is avoided, the first supporting plate 221 and the second supporting plate 222 are fixed by using the bolt group, and the roller 23 is fixed by selecting a proper supporting hole.

The steel pipe is lifted to the supporting component 20, so that the air bag block 13 and part of the hydraulic oil circuit cylinder with the safety valve of the pipe supporting component 10 are arranged in the pipe, and the driven gear 44 of the transmission mechanism 40 is arranged outside the pipe. The piston 111 is converted into hydraulic energy through rotating the rotating piece 115, so that the air bag block 13 realizes the expansion pipe supporting function, the air bag block and the steel pipe are guaranteed not to slide relatively, then the motor 41 is started, the motor 41 drives the driving gear 43 to rotate through the reduction gearbox, the driving gear 43 drives the driven gear 44 to rotate through the chain 45, the transmission mechanism 40 drives the belt connecting piece 12 to rotate, the steel pipe is driven to rotate, and the steel pipe cutting is realized.

Reference in the present application to "an embodiment," "implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments. Furthermore, it should be understood that the features, structures, or characteristics described in the embodiments of the present application may be combined arbitrarily without any conflict with each other to form yet another embodiment without departing from the spirit and scope of the present application.

Finally, it should be noted that the above embodiments are merely for illustrating the technical solution of the present application and not for limiting, and although the present application has been described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present application may be modified or equivalent replaced without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A movable pipe cutting assistance apparatus, comprising:

the support assembly is used for supporting the pipeline, the support assembly is provided with a middle point line, the connecting piece is provided with an axis, and an extension line of the middle point line of the support assembly is perpendicular to and intersects with an extension line of the axis of the connecting piece.

2. The mobile pipe cutting assistance device of claim 1, wherein the support assembly comprises: guide holder and support piece;

3. The movable pipe cutting auxiliary device according to claim 2, wherein the guide seat is provided with a plurality of positioning holes along the moving direction of the first support plate or the second support plate, the first support plate and the second support plate are provided with a plurality of fixing holes, and the fixing holes are matched with the positioning holes to limit the movement of the first support plate along the first sliding rail and the second support plate along the second sliding rail.

4. The portable pipe cutting apparatus of claim 3, further comprising: a lifting assembly;

5. The mobile pipe cutting assistance apparatus of claim 4, further comprising: a transmission mechanism;

6. The mobile pipe cutting assistance apparatus of claim 4, further comprising: the bottom plate, the bottom plate has seted up a plurality of penetrations the through-hole of bottom plate, lifting unit set up in on the bottom plate.

7. The movable pipe cutting auxiliary device according to claim 6, wherein the base plate is detachably provided with a guide rail in the direction of the axis of the connecting member, both sides of the guide holder are provided with an ear plate for passing the guide rail therethrough, and the guide holder is movable along the guide rail.

8. The movable pipe cutting auxiliary device according to claim 1, wherein the hydraulic cylinder is provided with a piston and a piston rod, a thrust bearing is arranged at one end of the piston rod far away from the piston, a screw rod is connected to the thrust bearing, and a rotating member is arranged at one end of the screw rod far away from the piston;

9. The movable pipe cutting auxiliary device according to claim 8, wherein an oil pipe is arranged at one end of the hydraulic cylinder away from the piston rod, the oil pipe is connected with a safety valve and an oil gauge, and the safety valve and the oil gauge are connected with the air bag block.

10. The movable pipe cutting assistance apparatus as claimed in claim 1, wherein a surface of the airbag block is covered with an anti-slip layer.