Pipeline prefabrication auxiliary tool

Abstract

The utility model relates to the technical field of tool clamps, in particular to an auxiliary tool for pipeline prefabrication. The pipeline prefabrication auxiliary tool comprises a support, a clamping device and a rolling device. The clamping device is used for clamping a pipeline and can be detachably connected with the support, and the clamping device and the support are connected to form a first supporting structure of the pipeline. The rolling device is used for supporting the pipeline, the pipeline can rotate on the rolling device, the rolling device can be detachably connected with the support, and the rolling device and the support are connected to form a second supporting structure of the pipeline. The utility model provides an auxiliary tool for pipeline prefabrication, which is used for improving the pipeline prefabrication efficiency and the quality of processed finished products, relieving the fatigue feeling of operators in the prefabrication process, reducing the time cost and the economic cost, saving the pipeline prefabrication period and improving the prefabrication yield.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to a pipeline prefabrication auxiliary tooling. Background Art

[0002] In the construction of chemical production facilities, the installation of process pipelines and instrument control pipelines is an important part of the construction work. The installation of process pipelines has the characteristics of dense pipeline distribution, complex pipeline directions and large installation engineering. Before installation, pipeline prefabrication work needs to be carried out in advance.

[0003] The contents of pipeline prefabrication mainly include pipe cutting, pipe bending, pipe bevel making and grinding, and pipe butt welding. The bevel making and pipe butt welding in the prefabrication work cannot be automated at present, and need to be operated manually with traditional tools. During the operation, the pipe segments need to be clamped, flipped and rotated repeatedly, which is inefficient. In addition, the prefabrication volume is large and the duration is long, which increases the labor intensity and easily causes fatigue construction, resulting in large precision deviation, insufficient quality compliance, and increased time and economic costs.

[0004] Therefore, the present application provides a new pipeline prefabrication auxiliary tooling to address the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a pipeline prefabrication auxiliary tooling, which is at least used to improve the pipeline prefabrication efficiency and the quality of the finished product, relieve the fatigue of the operators during the prefabrication process, and at the same time reduce the time cost and economic cost, save the pipeline prefabrication cycle, and increase the prefabrication output.

[0006] Based on the above purpose, the utility model provides a pipeline prefabrication auxiliary tooling, which includes a bracket, a clamping device and a rolling device;

[0007] The clamping device is used to clamp the pipeline, and can be detachably connected to the bracket, and the clamping device and the bracket are connected to form a first supporting structure of the pipeline;

[0008] The rolling device is used to support the pipeline, and the pipeline can rotate on the rolling device along the axial direction of the pipeline. The rolling device can be detachably connected to the bracket, and the connection between the rolling device and the bracket can form a second supporting structure of the pipeline.

[0009] Further, the clamping device comprises a connecting assembly, a clamping base and two clamping plates, the two clamping plates are connected to the clamping base through the connecting assembly, and a clamping cavity for clamping the pipe is formed between the two clamping plates, and the connecting assembly can make the two clamping plates relatively close to or away from each other to change the size of the clamping cavity;

[0010] The clamping base is provided with a clamping connector for detachably connecting with the bracket.

[0011] Further, the clamping base comprises a base plate, the base plate comprises a first plate surface and a second plate surface which are arranged opposite to each other, the first plate surface is provided with a positioning plate which is perpendicular to the first plate surface, and the clamping connector is arranged on the second plate surface;

[0012] The two clamping plates are symmetrically connected to the two sides of the positioning plate through the connecting assembly, and the connecting assembly can make the clamping plates approach or move away from the positioning plate, so that the two clamping plates are relatively close to or away from each other.

[0013] Further, the clamping plate includes a clamping portion and a first limiting portion and a second limiting portion both connected to the clamping portion, and the clamping cavity is formed between the clamping portions of the two clamping plates;

[0014] The connecting assembly includes a clamping screw, a clamping elastic member sleeved outside the clamping screw, and a clamping nut screwed to the clamping screw. The clamping screw passes through the first limiting portion, the second limiting portion and the positioning plate in sequence. The clamping elastic member is arranged between the second limiting portion and the positioning plate, and the clamping elastic member makes the second limiting portion always tend to move away from the positioning plate. The clamping nut is arranged on the side of the first limiting portion away from the second limiting portion.

[0015] Further, the rolling device comprises a rolling base and two rolling assemblies connected to the rolling base, the two rolling assemblies together form a rolling platform for supporting the pipeline, and the pipeline can rotate along the axial direction of the pipeline on the rolling platform;

[0016] The rolling base is provided with a rolling connection piece for detachably connecting with the bracket.

[0017] Furthermore, the rolling assembly includes a connecting rod fixedly connected to the rolling base, and a plurality of rolling bearings are arranged on the connecting rod. The axes of the two connecting rods of the two rolling assemblies are parallel, and the rolling bearings on the two connecting rods are staggered, so that the rolling bearings on the two connecting rods jointly form a rolling platform for supporting the pipeline.

[0018] Furthermore, the connecting rods of the two rolling assemblies are respectively a first connecting rod and a second connecting rod, one rolling bearing is provided on the first connecting rod, and two rolling bearings are provided on the second connecting rod.

[0019] Furthermore, the rolling base includes a side wall connected to each other and a bottom plate arranged at the bottom end of the side wall, the side wall and the bottom plate together form an inner cavity, and the rolling connector is arranged on a side of the bottom plate away from the inner cavity;

[0020] Both ends of the connecting rod pass through the side wall and are fixed to the side wall through a rolling nut. The rolling bearing is arranged in the inner cavity, and the rolling bearing and the side of the side wall close to the inner cavity are limited by a sleeve.

[0021] Furthermore, the bracket comprises a bracket main rod, one end of the bracket main rod is connected to a bracket connector via a ring chain buckle, and the other end is provided with a bracket bottom plate, and the bracket connector can be detachably connected to the clamping connector and the rolling connector;

[0022] Along the circumference of the main pole of the bracket, the ring chain buckle is connected with a plurality of bracket legs at intervals, and one end of the plurality of bracket legs away from the ring chain buckle has an expanded state relative to the main pole of the bracket and a retracted state relative to the main pole of the bracket;

[0023] Wherein, the support legs are retractable along the length direction of the support legs.

[0024] Further, the support leg comprises a support leg elastic member, a ground contact cone angle, and a support leg rod and a support leg sleeve that are threadedly connected, the support leg rod is connected to the ring chain buckle, the support leg elastic member is arranged in the support leg sleeve in a compressed state, and one end of the support leg elastic member abuts against the support leg rod, and the other end abuts against the support leg sleeve and is connected to the ground contact cone angle;

[0025] When the leg sleeve rotates toward the side away from the leg rod, the leg elastic member drives the ground contact cone angle away from the leg rod, thereby lengthening the bracket leg; when the leg sleeve rotates toward the side close to the leg rod, the leg elastic member is compressed and drives the ground contact cone angle close to the leg rod, thereby shortening the bracket leg.

[0026] By adopting the above technical solution, the pipeline prefabrication auxiliary tooling of the utility model has at least the following beneficial effects:

[0027] During the pipeline prefabrication process, two pipelines that need to be prefabricated need to be clamped on the pipeline prefabrication auxiliary tooling. Specifically, first, the clamping device is connected to the bracket to form a first support structure, and the rolling device is connected to the bracket to form a second support structure to complete the assembly of the pipeline prefabrication auxiliary tooling; then a pipeline is clamped on the clamping device at a position close to the first end along the length direction, and the first end of the pipeline is supported by the first support structure, and the pipeline is placed on the rolling device at a position close to the second end (the second end is arranged opposite to the first end) along the length direction, and the second end of the pipeline is supported by the second support structure, completing the clamping of one pipeline, and the same method is used to clamp another pipeline, thereby achieving the clamping of two pipelines that need to be prefabricated; then the two pipelines are rotated relative to the rolling devices in the corresponding second support structures, so that the two pipelines are accurately butted, so as to facilitate the prefabrication of the two pipelines such as beveling, welding and butting.

[0028] To sum up, the pipeline prefabrication auxiliary tooling of this embodiment is used to assist in pipeline groove processing and grinding, and to assist in butt welding of pipeline sections, so as to achieve the effect of improving pipeline prefabrication efficiency, increasing prefabrication output, reducing labor intensity of personnel, saving construction costs and shortening construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A schematic diagram of the structure of a clamping device provided in an embodiment of the utility model;

[0031] Figure 2 A schematic diagram of the structure of a rolling device provided in an embodiment of the utility model;

[0032] Figure 3 A schematic diagram of the structure of a bracket provided in an embodiment of the utility model;

[0033] Figure 4 A schematic diagram of the structure of the support legs of the support provided by the embodiment of the utility model;

[0034] Figure 5 A schematic structural diagram of a first supporting structure provided in an embodiment of the utility model;

[0035] Figure 6 A schematic diagram of the structure of a second supporting structure provided in an embodiment of the utility model;

[0036] Figure 7 A schematic diagram of a pipeline prefabrication auxiliary tooling clamping two pipelines provided in an embodiment of the utility model.

[0037] Reference numerals:

[0038] 1- Pipeline;

[0039] 2-clamping device; 21-clamping base; 211-base plate; 212-positioning plate; 22-clamping plate; 221-clamping part; 222-first limiting part; 223-second limiting part; 23-clamping screw; 24-clamping elastic member; 25-clamping nut;

[0040] 3-rolling device; 31-rolling base; 32-rolling assembly; 321-connecting rod; 322-rolling bearing; 323-rolling nut; 33-sleeve;

[0041] 4-bracket; 41-bracket main rod; 42-ring chain buckle; 43-bracket bottom plate; 44-bracket leg; 441-leg elastic member; 442-cone angle of contact with the ground; 443-leg rod; 444-leg sleeve;

[0042] 5-Clamp the connector;

[0043] 6-Rolling connector;

[0044] 7- bracket connector;

[0045] 8-first supporting structure; 9-second supporting structure. DETAILED DESCRIPTION

[0046] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0047] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0048] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] Example

[0050] See also Figure 7 , and combined with Figure 5 and Figure 6 The present embodiment provides a pipeline prefabrication auxiliary tooling, which includes a bracket 4, a clamping device 2 and a rolling device 3; the clamping device 2 is used to clamp the pipeline 1, and can be detachably connected to the bracket 4, and the clamping device 2 and the bracket 4 are connected to form a first support structure 8 for the pipeline 1; the rolling device 3 is used to support the pipeline 1, and the pipeline 1 can rotate on the rolling device 3 along the axial direction of the pipeline 1, the rolling device 3 can be detachably connected to the bracket 4, and the rolling device 3 and the bracket 4 are connected to form a second support structure 9 for the pipeline 1.

[0051] It should be noted that during the prefabrication of the pipeline 1, the two pipelines 1 to be prefabricated need to be clamped on the pipeline prefabrication auxiliary tooling respectively. Figure 7 First, the clamping device 2 is connected to the bracket 4 to form a first supporting structure 8, and the rolling device 3 is connected to the bracket 4 to form a second supporting structure 9, so as to complete the assembly of the pipeline prefabrication auxiliary tooling; then, a pipeline 1 is clamped on the clamping device 2 at a position close to the first end along the length direction, and the first end of the pipeline 1 is supported by the first supporting structure 8, and the pipeline 1 is placed on the rolling device 3 at a position close to the second end (the second end is arranged opposite to the first end) along the length direction, and the second end of the pipeline 1 is supported by the second supporting structure 9, so as to complete the clamping of one pipeline 1, and the same method is used to clamp another pipeline 1, so as to realize the clamping of two pipelines 1 that need to be prefabricated; then, the two pipelines 1 are rotated relative to the rolling devices 3 in the corresponding second supporting structures 9, so that the two pipelines 1 are accurately butted, so as to facilitate the prefabrication of the two pipelines 1 such as the groove production and welding butt.

[0052] To sum up, the pipeline prefabrication auxiliary tooling of this embodiment is used to assist in the groove processing and grinding of the pipeline 1, and the butt welding of the auxiliary pipeline 1 section, so as to achieve the effect of improving the prefabrication efficiency of the pipeline 1, increasing the prefabrication output, reducing the labor intensity of personnel, saving construction costs and shortening the construction period.

[0053] The clamping device 2 and the rolling device 3 can be detachably connected to the bracket 4 respectively, so that the clamping device 2 and the rolling device 3 can be used interchangeably on the bracket 4, and the bracket 4 is suitable for both the clamping device 2 and the rolling device 3.

[0054] Preferably, see Figure 1 In this embodiment, the clamping device 2 includes a connecting component, a clamping base 21 and two clamping plates 22. The two clamping plates 22 are connected to the clamping base 21 through the connecting component, and a clamping cavity for clamping the pipe 1 is formed between the two clamping plates 22. The connecting component can make the two clamping plates 22 relatively close or far away to change the size of the clamping cavity; the clamping base 21 is provided with a clamping connector 5 for detachable connection with the bracket 4.

[0055] With such an arrangement, the first support structure 8 can be assembled by connecting the clamping connector 5 to the bracket 4 , and the pipe 1 can be clamped by placing it in the clamping cavity.

[0056] The connection assembly can make the two clamping plates 22 relatively close to or away from each other to change the size of the clamping cavity, so that the clamping device 2 can be suitable for clamping pipes 1 of various specifications and different diameters, thereby improving the applicability of the clamping device 2.

[0057] Preferably, see Figure 1 In this embodiment, the clamping base 21 includes a substrate 211, the substrate 211 includes a first plate surface and a second plate surface that are arranged opposite to each other, the first plate surface is provided with a positioning plate 212 perpendicular to the first plate surface, and the clamping connector 5 is arranged on the second plate surface; the two clamping plates 22 are symmetrically connected to the two sides of the positioning plate 212 through a connecting component, and the connecting component can make the clamping plates 22 close to or away from the positioning plate 212, so that the two clamping plates 22 are relatively close to or away from each other.

[0058] With such an arrangement, the clamping plate 22 is moved closer to or farther from the positioning plate 212 through the connecting assembly, so that the two clamping plates 22 are relatively closer to or farther away from each other, thereby achieving the change of the size of the clamping cavity.

[0059] Preferably, see Figure 1In this embodiment, the clamping plate 22 includes a clamping portion 221 and a first limiting portion 222 and a second limiting portion 223 both connected to the clamping portion 221, and a clamping cavity is formed between the clamping portions 221 of the two clamping plates 22; the connecting component includes a clamping screw 23, a clamping elastic member 24 sleeved on the outside of the clamping screw 23, and a clamping nut 25 screwed to the clamping screw 23, the clamping screw passes through the first limiting portion 222, the second limiting portion 223 and the positioning plate 212 in sequence, the clamping elastic member 24 is arranged between the second limiting portion 223 and the positioning plate 212, and the clamping elastic member 24 makes the second limiting portion 223 always have a tendency to move away from the positioning plate 212, and the clamping nut 25 is arranged on the side of the first limiting portion 222 away from the second limiting portion 223.

[0060] A clamping cavity is formed between the clamping parts 221 of the two clamping plates 22, so that the clamping cavity is in a "U"-shaped shape. When in use, the pipe 1 is placed between the "U"-shaped openings to prevent the pipe 1 from slipping.

[0061] In addition, it should be supplemented that the two clamps 22 are symmetrically arranged on both sides of the positioning plate 212, that is, the two clamps 22 are connected to the positioning plate 212 in the same way. Specifically, after the screw passes through the first limiting portion 222 and the second limiting portion 223 of one clamp 22 in turn, it continues to pass through the positioning plate 212, and then passes through the first limiting portion 222 and the second limiting portion 223 of the other clamp 22, and a clamping elastic member 24 is provided between the second limiting portion 223 of the two clamps 22 and the positioning plate 212, and the first limiting portion 222 of the two clamps 22 is limited by a clamping nut 25 on the side away from the second limiting portion 223.

[0062] With this arrangement, by rotating the clamping nut 25 in the direction close to the positioning plate 212, the clamping nut 25 drives the first limiting portion 222 to approach the positioning plate 212, and the second limiting portion 223 connected to the first limiting portion 222 can squeeze the clamping elastic member 24, overcome the pre-tightening force of the clamping elastic member 24 and also move in the direction close to the positioning plate 212, so that the clamping portion 221 moves in the direction close to the positioning plate 212, the distance between the clamping portions 221 of the two clamping plates 22 is reduced, and the space of the clamping cavity is reduced, which is suitable for clamping pipes 1 with smaller diameters.

[0063] By rotating the clamping nut 25 in the direction away from the positioning plate 212, the first limiting portion 222 away from the side of the positioning plate 212 loses its limit, so that under the action of the pre-tightening force of the clamping elastic member 24, the clamping elastic member 24 squeezes the second limiting portion 223 in the direction away from the positioning plate 212, so that the second limiting portion 223 drives the first limiting portion 222 to move in the direction away from the positioning plate 212, thereby increasing the distance between the clamping portions 221 of the two clamping plates 22 and increasing the space of the clamping cavity, which is suitable for clamping pipes 1 with larger diameters.

[0064] Furthermore, when the pipe 1 is clamped in the clamping cavity, the connection assembly does not make the pipe 1 tightly clamped in the clamping device 2 and cannot rotate, but one side of the pipe 1 is limited to the clamping nut 25, and the other side is limited to the clamping elastic member 24, so that it can move under the action of external force to overcome the pre-tightening force of the clamping elastic member 24. Specifically, when the first support structure 8 supports the first end of the pipe 1 and the second support structure 9 supports the second end of the pipe 1, when the pipe 1 is rotated relative to the rolling device 3 in the second support structure 9 by external force, under the action of the clamping device of the first support structure 8, the clamping elastic member 24 can be adaptively compressed according to the rotation of the pipe 1, so that the pipe 1 can rotate smoothly, ensuring the accurate docking of the two pipes 1.

[0065] To summarize, a clamping spring-clamping nut 25 combination is provided in the clamping device 2. By adjusting the position of the clamping nut 25 on the clamping screw 23, the clamping spring changes the magnitude of the pressure it is subjected to, and the clamping plate 22 always remains in an outwardly expanded state under the combined action of the clamping spring tension and the clamping nut 25.

[0066] Preferably, the base plate 211 and the positioning plate 212 of the clamping base 21 are two steel plates, and the two steel plates are welded to form the clamping base 21; the clamping portion 221, the first limiting portion 222 and the second limiting portion 223 make the clamping plate 22 in an "h" shape, which can keep it stable when moving; there are two clamping screws 23, both of which have threads along the entire length, which is convenient for adjusting the position of the clamping nut 25; there are four groups of clamping elastic members 24, which are respectively arranged on the clamping screws 23 on both sides of the positioning plate 212; the clamping connector 5 is spliced ​​with the base plate 211 and is located at the center of the base plate 211. After the clamping device 2 is assembled and before use, the two clamping parts 221 are in an open state. When in use, place the pipe section in the clamping cavity between the two clamping parts 221, adjust the position of the clamping nut 25 so that the clamping plate 22 moves inward to reduce the size of the clamping cavity, and stop adjusting the clamping nut 25 when the inner wall of the clamping part 221 contacts the pipe 1. At this time, the pipe 1 is restricted from moving laterally. Due to the action of the clamping elastic member 24, the two side plates of the clamping plate 22 always maintain outward force. When the clamping nut 25 is adjusted outward, the clamping plate 22 automatically moves outward, and the pipe 1 is removed for processing the next section of the pipe 1. The clamping connector 5 is a connecting part between the clamping device 2 and the bracket 4. For example, a threaded connection can be used to make the clamping device 2 replaceable.

[0067] Preferably, a plurality of connecting components are provided, and the plurality of connecting components are arranged at intervals, so that the connection between the clamping plate 22 and the positioning plate 212 is more firmly and reliably made.

[0068] Preferably, see Figure 2In this embodiment, the rolling device 3 includes a rolling base 31 and two rolling assemblies 32 connected to the rolling base 31. The two rolling assemblies 32 together form a rolling platform for supporting the pipeline 1. The pipeline 1 can rotate along the axial direction of the pipeline 1 on the rolling platform; the rolling base 31 is provided with a rolling connector 6 for detachably connecting with the bracket 4.

[0069] With such an arrangement, the second support structure 9 can be assembled by connecting the rolling connector 6 to the bracket 4, and the pipeline 1 can be supported by arranging it in the rolling platform, and the pipeline 1 can rotate along its own axis.

[0070] Preferably, see Figure 2 In this embodiment, the rolling assembly 32 includes a connecting rod 321 fixedly connected to the rolling base 31, and a plurality of rolling bearings 322 are arranged on the connecting rod 321. The axes of the two connecting rods 321 of the two rolling assemblies 32 are parallel, and the rolling bearings 322 on the two connecting rods 321 are staggered, so that the rolling bearings 322 on the two connecting rods 321 jointly form a rolling platform for supporting the pipeline 1.

[0071] That is, the interval between the rolling bearings 322 on the two connecting rods 321 is smaller than the diameter of the pipe 1 , so that the rolling platform can support the pipe 1 and prevent the pipe 1 from falling from the gap between the rolling bearings 322 on the two connecting rods 321 .

[0072] With such an arrangement, the pipeline 1 can be arranged between the rolling bearings 322 on the two connecting rods 321 , so when the pipeline 1 rotates, the rolling of the pipeline 1 can be achieved by the rotation of the rolling bearings 322 on the two connecting rods 321 .

[0073] Among them, optionally, the number of rolling bearings 322 on the connecting rod 321 can be one or more, and the number of rolling bearings 322 on the two connecting rods 321 can be the same or different. For example, one connecting rod 321 is provided with one rolling bearing 322, and the other connecting rod 321 is provided with two rolling bearings 322; one connecting rod 321 is provided with two rolling bearings 322, and the other connecting rod 321 is also provided with two rolling bearings 322.

[0074] In summary, in the rolling device 3, a rolling bearing 322 is provided to realize the rolling function. The inner ring of the rolling bearing 322 is fixed to the connecting rod 321, and the outer ring of the rolling bearing 322 is in contact with the wall of the pipeline 1. By applying an external force to the pipeline 1, the outer ring of the rolling bearing 322 rotates accordingly, thereby reducing the external force output.

[0075] Preferably, see Figure 2In this embodiment, the connecting rods 321 of the two rolling assemblies 32 are respectively a first connecting rod and a second connecting rod, one rolling bearing 322 is provided on the first connecting rod, and two rolling bearings 322 are provided on the second connecting rod.

[0076] Such an arrangement increases the supporting area of ​​the rolling platform for the pipeline 1, thereby providing a more stable and reliable support for the pipeline 1. The rolling device 3 only needs to be provided with three rolling bearings 322, thereby reducing the cost of the rolling device 3 while ensuring the stability of the support for the pipeline 1.

[0077] Preferably, see Figure 2 In this embodiment, the rolling base 31 includes side walls that are connected to each other and a bottom plate arranged at the bottom end of the side walls. An inner cavity is formed between the side walls and the bottom plate. The rolling connector 6 is arranged on the side of the bottom plate away from the inner cavity. Both ends of the connecting rod 321 pass through the side walls and are fixed to the side walls by rolling nuts 323. The rolling bearing 322 is arranged in the inner cavity, and the rolling bearing 322 and the side of the side wall close to the inner cavity are limited by a sleeve 33.

[0078] That is, the spacing between the rolling bearings 322 and the distance from the side wall of the rolling base 31 are fixed by the sleeve 33 .

[0079] Preferably, the side wall is composed of small steel plates spliced ​​together, so that the rolling base 31 is in a "concave" groove shape, and two groups of screw holes symmetrical about the center line are set on the side wall, and the rolling connector 6 is spliced ​​with the bottom plate; there are two connecting rods 321, and the two connecting rods 321 are arranged in parallel. Preferably, both ends of the connecting rod 321 are designed to have threads, and they are fastened to the side wall by rolling nuts 323.

[0080] Preferably, see Figure 3 In this embodiment, the bracket 4 includes a bracket main rod 41, one end of the bracket main rod 41 is connected to the bracket connecting member 7 through a ring chain buckle 42, and the other end is provided with a bracket bottom plate 43, and the bracket connecting member 7 can be detachably connected to the clamping connecting member 5 and the rolling connecting member 6; along the circumference of the bracket main rod 41, a plurality of bracket legs 44 are connected to the ring chain buckle 42 at intervals, and the ends of the plurality of bracket legs 44 away from the ring chain buckle 42 have an expanded state relative to the bracket main rod 41 and a retracted state relative to the bracket main rod 41; wherein, along the length direction of the bracket legs 44, the bracket legs 44 are retractable.

[0081] Optionally, the chain buckle 42 is fixed to the bracket main rod 41 with screws, and the chain buckle 42 can be moved along the bracket main rod 41 to adjust the height between the chain buckle 42 and the ground according to actual usage to ensure the supporting effect of the bracket legs 44.

[0082] It should be noted that the bracket 4 mainly supports the weight of the clamping device 2, the rolling device 3 and the pipeline 1, wherein the number of the bracket legs 44 can be three, four or five, etc. Preferably, the number of the bracket legs 44 is three, and the three bracket legs 44 are evenly arranged along the circumference of the bracket main rod 41, thereby improving the stability of the support.

[0083] Optionally, one end of the bracket connector 7 is connected to the ring chain buckle 42, and the other end is used for detachable connection with the clamp connector 5 and the rolling connector 6. For example, the bracket connector 7 is connected to the clamp connector 5 and the rolling connector 6 by screw connection, clamp connection or buckle connection. Specifically, the bracket connector 7 is provided with an external thread, and the clamp connector 5 and the rolling connector 6 are provided with an internal thread matching the external thread.

[0084] Among them, when one end of the multiple bracket legs 44 away from the chain buckle 42 is unfolded relative to the bracket main rod 41, the bracket is in an unfolded state and can support the clamping device 2 or the rolling device 3; when one end of the multiple bracket legs 44 away from the chain buckle 42 is retracted relative to the bracket main rod 41, the bracket 4 is in a retracted state, reducing the volume of the bracket 4 to facilitate the storage or storage of the bracket 4.

[0085] In addition, the support legs 44 are retractable along their length direction, thereby facilitating adjustment of the support height of the support 4, improving the convenience of using the tooling, and allowing balance adjustment according to the site where the tooling is used to prevent the tooling from tipping over during use.

[0086] Preferably, see Figure 4 In this embodiment, the support leg 44 includes a support leg elastic member 441, a ground contact cone angle 442, and a support leg rod 443 and a support leg sleeve 444 that are screwed together. The support leg rod 443 is connected to the ring chain buckle 42, and the support leg elastic member 441 is arranged in a compressed state in the support leg sleeve 444, and one end of the support leg elastic member 441 abuts against the support leg rod 443, and the other end abuts against the support leg sleeve 444 and is connected to the ground contact cone angle 442; when the support leg sleeve 444 rotates to the side away from the support leg rod 443, the support leg elastic member 441 drives the ground contact cone angle 442 away from the support leg rod 443, so that the support leg 44 is extended; when the support leg sleeve 444 rotates to the side close to the support leg rod 443, the support leg elastic member 441 is compressed and drives the ground contact cone angle 442 close to the support leg rod 443, so that the support leg 44 is shortened.

[0087] With such a setting, by rotating the leg sleeve 444 toward or away from the leg rod 443, the preload force of the leg elastic member 441 is changed, so that the leg elastic member 441 drives the ground contact cone angle 442 to move closer to or away from the leg rod 443, thereby achieving the extension and shortening of the bracket leg 44, which is simple and convenient to operate.

[0088] In summary, the support 4 uses the support legs 44 to adjust the balance, and a part of the length of the support legs 44 is replaced by the support leg elastic member 441, so that the length of the support legs 44 can be variable within a certain range. The support leg sleeve 444 limits the freedom of the ground contact cone angle 442, and keeps extending under the force of the support leg elastic member 441. When the support legs 44 are used, they are compressed by external force, thereby realizing the variability of the length of the support legs 44.

[0089] The pipeline prefabrication auxiliary tooling has a simple structural design, and the design of the clamping device 2 and the bracket leg 44 is adjustable, easy to disassemble and replace, and has high practical performance. It can be made of construction waste materials, which improves the efficiency of material use. The waste materials are cut according to the design and spliced ​​by welding and bolts. The production process is simple and time-saving, which can effectively save the cost of construction materials. In addition, the tooling operation method is simple, and the operation process only requires two people to cooperate to operate, which reduces the process time, improves the processing efficiency, and can greatly save labor costs.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A pipeline prefabrication auxiliary tool, characterized in that: It includes a bracket, a clamping device and a rolling device; The clamping device is used to clamp the pipeline, and can be detachably connected to the bracket, and the clamping device and the bracket are connected to form a first supporting structure of the pipeline; The rolling device is used to support the pipeline, and the pipeline can rotate on the rolling device along the axial direction of the pipeline. The rolling device can be detachably connected to the bracket, and the connection between the rolling device and the bracket can form a second supporting structure of the pipeline.

2. The pipeline prefabrication auxiliary tooling according to claim 1 is characterized in that: The clamping device comprises a connecting assembly, a clamping base and two clamping plates, the two clamping plates are connected to the clamping base through the connecting assembly, and a clamping cavity for clamping the pipe is formed between the two clamping plates, and the connecting assembly can make the two clamping plates relatively close to or away from each other to change the size of the clamping cavity; The clamping base is provided with a clamping connector for detachably connecting with the bracket.

3. The pipeline prefabrication auxiliary tooling according to claim 2 is characterized in that: The clamping base comprises a base plate, the base plate comprises a first plate surface and a second plate surface which are arranged opposite to each other, the first plate surface is provided with a positioning plate which is perpendicular to the first plate surface, and the clamping connector is arranged on the second plate surface; The two clamping plates are symmetrically connected to the two sides of the positioning plate through the connecting assembly, and the connecting assembly can make the clamping plates approach or move away from the positioning plate, so that the two clamping plates are relatively close to or away from each other.

4. The pipeline prefabrication auxiliary tooling according to claim 3 is characterized in that: The clamping plate comprises a clamping portion and a first limiting portion and a second limiting portion both connected to the clamping portion, and the clamping cavity is formed between the clamping portions of the two clamping plates; The connecting assembly includes a clamping screw, a clamping elastic member sleeved outside the clamping screw, and a clamping nut screwed to the clamping screw. The clamping screw passes through the first limiting portion, the second limiting portion and the positioning plate in sequence. The clamping elastic member is arranged between the second limiting portion and the positioning plate, and the clamping elastic member makes the second limiting portion always tend to move away from the positioning plate. The clamping nut is arranged on the side of the first limiting portion away from the second limiting portion.

5. The pipeline prefabrication auxiliary tooling according to claim 2 is characterized in that: The rolling device comprises a rolling base and two rolling assemblies connected to the rolling base, the two rolling assemblies together form a rolling platform for supporting the pipeline, and the pipeline can rotate along the axial direction of the pipeline on the rolling platform; The rolling base is provided with a rolling connection piece for detachably connecting with the bracket.

6. The pipeline prefabrication auxiliary tooling according to claim 5, characterized in that: The rolling assembly includes a connecting rod fixedly connected to the rolling base, and a plurality of rolling bearings are arranged on the connecting rod. The axes of the two connecting rods of the two rolling assemblies are parallel, and the rolling bearings on the two connecting rods are staggered, so that the rolling bearings on the two connecting rods jointly form a rolling platform for supporting the pipeline.

7. The pipeline prefabrication auxiliary tooling according to claim 6, characterized in that: The connecting rods of the two rolling assemblies are respectively a first connecting rod and a second connecting rod. One rolling bearing is arranged on the first connecting rod, and two rolling bearings are arranged on the second connecting rod.

8. The pipeline prefabrication auxiliary tooling according to claim 6, characterized in that: The rolling base comprises a side wall connected to each other and a bottom plate arranged at the bottom end of the side wall, the side wall and the bottom plate together form an inner cavity, and the rolling connector is arranged on a side of the bottom plate away from the inner cavity; Both ends of the connecting rod pass through the side wall and are fixed to the side wall through a rolling nut. The rolling bearing is arranged in the inner cavity, and the rolling bearing and the side of the side wall close to the inner cavity are limited by a sleeve.

9. The pipeline prefabrication auxiliary tooling according to any one of claims 5 to 8, characterized in that: The bracket comprises a bracket main rod, one end of which is connected to a bracket connector via a ring chain buckle, and the other end is provided with a bracket bottom plate, and the bracket connector can be detachably connected to the clamping connector and the rolling connector; Along the circumference of the main pole of the bracket, the ring chain buckle is connected with a plurality of bracket legs at intervals, and one end of the plurality of bracket legs away from the ring chain buckle has an expanded state relative to the main pole of the bracket and a retracted state relative to the main pole of the bracket; Wherein, the support legs are retractable along the length direction of the support legs.

10. The pipeline prefabrication auxiliary tooling according to claim 9, characterized in that: The support leg of the bracket includes a support leg elastic member, a ground contact cone angle, and a support leg rod and a support leg sleeve that are threaded together. The support leg rod is connected to the ring chain buckle. The support leg elastic member is arranged in the support leg sleeve in a compressed state, and one end of the support leg elastic member abuts against the support leg rod, and the other end abuts against the support leg sleeve and is connected to the ground contact cone angle. When the leg sleeve rotates toward the side away from the leg rod, the leg elastic member drives the ground contact cone angle away from the leg rod, thereby lengthening the bracket leg; when the leg sleeve rotates toward the side close to the leg rod, the leg elastic member is compressed and drives the ground contact cone angle close to the leg rod, thereby shortening the bracket leg.

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