阅读说明：本技术 弧形管道的辅助装置 (Auxiliary device of arc pipeline ) 是由 王明波 刘奎荣 朱建平 付滨 王庆 贺小康 王杰 侯浩 徐洪敏 胡博 周晓亮 于 2021-09-02 设计创作，主要内容包括：本发明提供了一种弧形管道的辅助装置,所述辅助装置包括：第一摆动组件,包括第一摆动架以及设置在所述第一摆动架上的第一管托架,第一管托架上形成有供所述弧形管道穿过的第一夹持口；和第二摆动组件,包括第二摆动架以及设置在所述第二摆动架上的第二管托架,第二管托架上形成有供所述弧形管道穿过的第二夹持口,第二摆动架与所述第一摆动架枢接,以调节第二摆动架与所述第一摆动架之间的开合角度。根据本发明可满足弧形管道不同角度的测量和/或画线。(The invention provides an auxiliary device of an arc-shaped pipeline, which comprises: the first swinging assembly comprises a first swinging frame and a first pipe bracket arranged on the first swinging frame, and a first clamping opening for the arc-shaped pipeline to pass through is formed in the first pipe bracket; and the second swinging assembly comprises a second swinging frame and a second pipe bracket arranged on the second swinging frame, a second clamping opening for the arc-shaped pipeline to pass through is formed on the second pipe bracket, and the second swinging frame is pivoted with the first swinging frame so as to adjust the opening and closing angle between the second swinging frame and the first swinging frame. The invention can meet the measurement and/or line drawing of different angles of the arc-shaped pipeline.)

1. An auxiliary device for an arcuate duct, said auxiliary device comprising:

the first swinging assembly comprises a first swinging frame and a first pipe bracket arranged on the first swinging frame, and a first clamping opening for the arc-shaped pipeline to pass through is formed in the first pipe bracket; and

the second swing assembly comprises a second swing frame and a second pipe bracket arranged on the second swing frame, wherein the second pipe bracket is formed with a second clamping port through which the arc-shaped pipeline passes, the second swing frame is pivoted with the first swing frame so as to adjust the opening and closing angle between the second swing frame and the first swing frame, and measurement and/or line drawing of different angles of the arc-shaped pipeline are met.

2. The auxiliary device of the arc tube as claimed in claim 1, further comprising an angle adjustment guide unit, the angle adjustment guide unit comprising:

a rotating shaft provided on one of the second pipe bracket and the first swing frame;

a guide shaft provided on the other of the second tube bracket and the first swing frame; and

the limiting frame, the one end of limiting frame with the pivot is rotationally connected, be formed with the guiding groove on the limiting frame, the guiding axle inserts in the guiding groove and slide in the guiding groove and set up.

3. The arcuate duct assist of claim 2, wherein said stop comprises:

the first end of the first guide rod is rotatably connected with the rotating shaft; and

the first end of the second guide rod is connected with the second end of the first guide rod, an included angle is formed between the second guide rod and the first guide rod, the guide groove is formed in the second guide rod along the length direction, the included angle can ensure that the guide shaft slides relatively along the length direction in the guide groove when the opening and closing angle between the second swing frame and the first swing frame is adjusted, and the included angle is 60-120 degrees;

the angle adjustment guiding unit further comprises a locking piece used for locking the guiding shaft and the guiding groove to slide relatively, and the locking piece is sleeved on the nut on the guiding shaft.

4. The arcuate duct assist device of claim 1, further comprising:

the first radial moving unit is used for driving the first pipe bracket to move back and forth relative to the first swing frame along the bending radius direction of the arc-shaped pipeline; and/or

And the second radial moving unit is used for driving the second pipe bracket to move back and forth relative to the second swing frame along the bending radius direction of the arc-shaped pipeline.

5. The arcuate duct assist device as set forth in claim 4, wherein said first radial moving unit comprises: the first lead screw is arranged along the direction of the bending radius, the first end of the first lead screw is fixedly connected to the first pipe bracket, and the second end of the first lead screw is in threaded connection with the first swing frame;

the second radial movement unit includes: and the second lead screw is arranged along the direction of the bending radius, the first end of the second lead screw is fixedly connected to the second pipe bracket, and the second end of the second lead screw is in threaded connection with the second swing frame.

6. The auxiliary device for the arc-shaped pipeline according to claim 5, wherein a first mounting groove is formed on the first swing frame, a first adjusting hand wheel is arranged in the first mounting groove, the first adjusting hand wheel is sleeved on the first lead screw, and a threaded hole in threaded connection with the first lead screw is formed in the first adjusting hand wheel;

and a second mounting groove is formed in the second swing frame, a second adjusting hand wheel is arranged in the second mounting groove, and a threaded hole in threaded connection with the second lead screw is formed in the second adjusting hand wheel which is sleeved on the second lead screw.

7. The arcuate duct assist of claim 1, wherein said first tube carriage is disposed on said first swing frame by a first stop assembly, said first stop assembly including a first guide rail and a first rail slot extending in a direction of a radius of curvature of the arcuate duct, the first guide rail being formed on one of said first tube carriage and said first swing frame, the first rail slot being formed on the other of said first tube carriage and said first swing frame and being movable relative to said first guide rail;

the second pipe bracket is disposed on the second swing frame by a second stopper assembly including a second guide rail and a second rail groove extending in a bending radius direction of the arc-shaped pipe and engaged with each other, the second guide rail being formed on one of the second pipe bracket and the second swing frame, the second rail groove being formed on the other of the second pipe bracket and the second swing frame and being movable relative to the second guide rail.

8. The arcuate duct assist device as set forth in claim 7, wherein said first swing frame is formed with a first mounting opening, said first pipe bracket is placed in said first mounting opening, said first rail groove is formed on a top surface and a bottom surface of said first pipe bracket, said first rail groove is of a groove structure, said first guide rail is formed as a projection structure which is received in the groove structure and is slidable relative thereto;

the second swing frame is provided with a second mounting opening, the second pipe bracket is arranged in the second mounting opening, the second track groove is formed in the top surface and the bottom surface of the second pipe bracket, the second track groove is of a groove structure, and the second guide rail is of a protruding structure which can be accommodated in the groove structure and can slide relatively.

9. An auxiliary device for an arcuate duct as claimed in claim 8, wherein the first pipe bracket has a first catch plate and a second catch plate formed on both the top and bottom surfaces thereof, the first catch plate and the second catch plate being spaced apart to form said first track groove, wherein one of the first catch plate and the second catch plate is removably connected to the first pipe bracket;

and a third clamping plate and a fourth clamping plate are formed on the top surface and the bottom surface of the second pipe bracket, the third clamping plate and the fourth clamping plate are spaced to form the second track groove, and one of the third clamping plate and the fourth clamping plate is detachably connected with the second pipe bracket.

10. The arcuate tube assist device as set forth in claim 1, wherein said first grip opening and said second grip opening are formed in a ring shape corresponding to said arcuate tube,

the auxiliary device further comprises a fastening unit, the fastening unit comprises a fastening piece, a through hole for the fastening piece to pass through is formed in the first pipe bracket and the second pipe bracket, and the fastening piece is propped against the outer wall of the arc-shaped pipeline after passing through the through hole.

11. The auxiliary device for the arc-shaped pipeline according to claim 2, wherein the second swing frame is pivoted with the first swing frame through a hinge, and scales are formed on the hinge and used for reading the angle of the arc-shaped pipeline;

scales are formed on the limiting frame and used for reading the angle of the arc-shaped pipeline;

scales are formed on the first swinging frame and/or the second swinging frame.

12. An aid according to any one of claims 1 to 11 further including cutting and line marking tools.

Technical Field

The invention relates to the technical field of auxiliary processing tools of pipelines, in particular to an auxiliary device for an arc-shaped pipeline.

Background

At present, pipelines are applied to industries such as petroleum, chemical industry, electric power, ships, metallurgy, machinery, construction, pharmacy and the like, and the requirements on the pipelines are more and more strict, especially arc-shaped pipelines. In the process of blanking of the arc-shaped pipeline, the angle required by the arc-shaped pipeline needs to be drawn, and then cutting is carried out along the drawn line. There are two common line drawing processes. The first is to measure the required angle with an angle ruler manually, draw a plurality of positioning points, further surround the outer wall of the pipeline with a ring belt, draw a line along the ring belt with a special stone pen, and finally cut along the drawn line. When the pipe diameter is great, must two people concurrent operation just can accomplish the setting-out work, extravagant manpower, lack the line that effectual instrument leads to drawing moreover and often can't guarantee the parallel and level, influence the precision of follow-up cutting. The second is lofting with a template. That is, cut out of a relatively stiff paper into a desired shape, and then the cardboard is wrapped around the pipe to draw the cut trace.

The accuracy of an angle is difficult to guarantee in the existing line drawing process, and a large manual error exists. And the arc-shaped pipeline is not fixed in the line drawing process, so that the arc-shaped pipeline can deflect axially and radially in the line drawing process, and the error is further increased.

Disclosure of Invention

The present invention aims to address at least one of the above-mentioned deficiencies of the prior art. For example, it is an object of the present invention to provide an auxiliary device that can be used to measure and/or draw lines at different angles of an arcuate conduit.

In order to achieve the above object, the present invention provides an auxiliary device for an arc pipe, the auxiliary device comprising: the first swinging assembly comprises a first swinging frame and a first pipe bracket arranged on the first swinging frame, and a first clamping opening for the arc-shaped pipeline to pass through is formed in the first pipe bracket; and the second swing assembly comprises a second swing frame and a second pipe bracket arranged on the second swing frame, wherein the second pipe bracket is formed with a second clamping port through which the arc-shaped pipeline passes, the second swing frame is pivoted with the first swing frame so as to adjust the opening and closing angle between the second swing frame and the first swing frame, and the measurement and/or line drawing of different angles of the arc-shaped pipeline are met.

In one exemplary embodiment, the auxiliary device may further include an angle adjustment guide unit, and the angle adjustment guide unit may include: a rotating shaft provided on one of the second pipe bracket and the first swing frame; a guide shaft provided on the other of the second tube bracket and the first swing frame; and the limiting frame, the one end of limiting frame with the pivot is rotationally connected, be formed with the guiding groove on the limiting frame, the guiding axle inserts in the guiding groove and slide in the guiding groove and set up.

In one exemplary embodiment, the spacing frame may include: the first end of the first guide rod is rotatably connected with the rotating shaft; and the first end of the second guide rod is connected with the second end of the first guide rod, an included angle is formed between the second guide rod and the first guide rod, the guide groove is formed along the length direction on the second guide rod, the angle of the included angle can ensure that the second swing frame is adjusted and the opening and closing angle between the first swing frames is adjusted, and the guide shaft is arranged in the guide groove and is along the relative sliding of the length direction.

In an exemplary embodiment, the included angle may be 60 to 120 °.

In an exemplary embodiment, the angle adjustment guide unit may further include a locking member for locking relative sliding between the guide shaft and the guide groove, the locking member being a nut fitted over the guide shaft.

In one exemplary embodiment, the assisting apparatus may further include: the first radial moving unit is used for driving the first pipe bracket to move back and forth relative to the first swing frame along the bending radius direction of the arc-shaped pipeline; and/or a second radial moving unit for driving the second pipe bracket to move back and forth relative to the second swing frame along the bending radius direction of the arc-shaped pipe.

In one exemplary embodiment, the first radial moving unit may include: the first lead screw is arranged along the direction of the bending radius, the first end of the first lead screw is fixedly connected to the first pipe bracket, and the second end of the first lead screw is in threaded connection with the first swing frame.

In one exemplary embodiment, the second radial moving unit may include: and the second lead screw is arranged along the direction of the bending radius, the first end of the second lead screw is fixedly connected to the second pipe bracket, and the second end of the second lead screw is in threaded connection with the second swing frame.

In an exemplary embodiment, the first swing frame may be provided with a first mounting groove, the first adjusting hand wheel may be disposed in the first mounting groove, the first adjusting hand wheel may be sleeved on the first lead screw, and a threaded hole in threaded connection with the first lead screw is formed in the first adjusting hand wheel.

In an exemplary embodiment, a second mounting groove may be disposed on the second swing frame, a second adjusting handwheel may be disposed in the second mounting groove, the second adjusting handwheel may be sleeved on the second lead screw, and a threaded hole in threaded connection with the second lead screw is formed on the second adjusting handwheel.

In one exemplary embodiment, the first pipe bracket may be disposed on the first swing frame by a first stopper assembly, the first stopper assembly may include a first guide rail and a first rail groove extending in a bending radius direction of the arc-shaped pipe, the first guide rail may be formed on one of the first pipe bracket and the first swing frame, and the first rail groove may be formed on the other of the first pipe bracket and the first swing frame and may be movable with respect to the first guide rail.

In one exemplary embodiment, the second pipe bracket may be disposed on the second swing frame by a second limit assembly, the second limit assembly may include a second guide rail and a second rail groove extending in a bending radius direction of the arc-shaped pipe and cooperating with each other, the second guide rail may be formed on one of the second pipe bracket and the second swing frame, and the second rail groove may be formed on the other of the second pipe bracket and the second swing frame and movable relative to the second guide rail.

In an exemplary embodiment, the first swing frame may be formed with a first mounting opening in which the first pipe bracket may be seated, the first rail groove may be formed on top and bottom surfaces of the first pipe bracket, the first rail groove may have a groove structure, and the first guide rail may be formed in a protrusion structure that is received in the groove structure and is relatively slidable.

In an exemplary embodiment, the second swing frame may be formed with a second mounting opening in which the second pipe bracket may be seated, the second rail groove may be formed on top and bottom surfaces of the second pipe bracket, the second rail groove may have a groove structure, and the second guide rail may be formed in a protrusion structure that is received in the groove structure and is relatively slidable.

In an exemplary embodiment, the first pipe carriage may have a first catch plate and a second catch plate formed on both a top surface and a bottom surface thereof, the first catch plate and the second catch plate being spaced apart to form the first track groove, wherein a detachable connection between one of the first catch plate and the second catch plate and the first pipe carriage is provided.

In an exemplary embodiment, the second pipe carriage may have a third and a fourth clamping plate formed on both the top and bottom surfaces thereof, the third and fourth clamping plates being spaced apart to form the second track groove, wherein one of the third and fourth clamping plates is detachably connected to the second pipe carriage.

In one exemplary embodiment, the first clamping port and the second clamping port may be formed in a ring shape corresponding to the arc tube.

In an exemplary embodiment, the auxiliary device may further include a fastening unit including a fastening member, through holes through which the fastening member passes are provided on the first pipe bracket and the second pipe bracket, and the fastening member abuts against an outer wall of the arc-shaped pipe after passing through the through holes.

In an exemplary embodiment, the second swing frame and the first swing frame may be pivotally connected by a hinge.

In an exemplary embodiment, the hinge may be formed with a scale for reading an angle of the arc pipe.

In an exemplary embodiment, the stop frame may be formed with a scale for reading an angle of the arc pipe.

In an exemplary embodiment, the first and/or second swing frame has a scale formed thereon.

In one exemplary embodiment, the auxiliary device may further include a cutting tool and a line drawing tool.

Compared with the prior art, the invention has the beneficial effects that: the accuracy of arc pipeline angle measurement and the accuracy of setting-out can be promoted.

Drawings

FIG. 1 is a schematic view illustrating an operation state of an auxiliary device of an arc pipe according to an exemplary embodiment of the present invention;

FIG. 2 is a schematic view illustrating a closed state of an auxiliary device of an arc pipe according to an exemplary embodiment of the present invention;

FIG. 3 shows a schematic structural view of the first swing frame of FIG. 1;

FIG. 4 shows a schematic structural view of the first pipe bracket of FIG. 1;

fig. 5 shows a schematic structural view of the stop block in fig. 1.

Description of reference numerals:

1-arc duct, 100-first swing assembly, 110-first swing frame, 111-first mounting beam, 112-first beam of first swing frame, 113-second beam of first swing frame, 114-third beam of first swing frame, 115-fourth beam of first swing frame, 116-fifth beam of first swing frame, 117-first mounting opening, 118-first mounting groove, 119-scale on first swing frame, 120-first pipe bracket, 121-first clamping opening, 122-first clamping plate, 123-second clamping plate, 124-connecting pin, 125-connecting pin hole, 126-threaded hole, 200-second swing assembly, 210-second swing frame, 220-second pipe bracket, 221-second clamping opening, 222-third clamping plate, 300-angle adjustment guide unit, 310-rotating shaft, 320-guide shaft, 330-limiting frame, 331-guide groove, 332-first guide rod, 333-second guide rod, 334-scale on the limiting frame, 400-first radial movement unit, 410-first lead screw, 420-first adjustment hand wheel, 500-second radial movement unit, 510-second lead screw, 520-second adjustment hand wheel, 610-first guide rail, 620-second guide rail, 710-jackscrew, 800-hinge, 801-scale on the hinge, 900-fastening bolt.

Detailed Description

Hereinafter, the auxiliary device for the arc tube of the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

In the present application, the "first end" of each component may be an "upper end" as shown in the drawings, the "second end" may be a "lower end" as shown in the drawings, the "upper end" and the "lower end" are in accordance with the up-and-down direction of the drawings, but do not limit the structure of the assembly of the present disclosure, for example, after the direction of the assembly shown in the drawings is changed, the "first end" may also be a "left end" as shown in the drawings, the "second end" may be a "right end" as shown in the drawings, and the like.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

It should also be noted that, unless expressly stated or limited otherwise, the terms "mounted" and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.

Aiming at the problems that the arc-shaped pipeline is difficult to measure the angle and further difficult to draw a cutting line on the arc surface, the invention provides an auxiliary device of the arc-shaped pipeline, which comprises a first swinging assembly and a second swinging assembly. The first swing assembly comprises a first swing frame and a first pipe bracket arranged on the first swing frame, and a first clamping opening for the arc-shaped pipeline to pass through is formed in the first pipe bracket; the second swing assembly comprises a second swing frame and a second pipe bracket arranged on the second swing frame, a second clamping opening for the arc-shaped pipeline to pass through is formed in the second pipe bracket, the second swing frame is pivoted with the first swing frame to adjust the opening and closing angle between the second swing frame and the first swing frame, and measurement and/or line drawing of different angles of the arc-shaped pipeline are met.

According to the invention, the angle of the arc-shaped pipeline can be accurately measured by measuring the rotation angle between the first swing frame and the second swing frame, and the problem that the angle cannot be accurately ensured by drawing the line of the arc-shaped pipeline is solved.

FIG. 1 is a schematic view illustrating an operation state of an auxiliary device of an arc pipe according to an exemplary embodiment of the present invention; FIG. 2 is a schematic view illustrating a closed state of an auxiliary device of an arc pipe according to an exemplary embodiment of the present invention; FIG. 3 shows a schematic structural view of the first swing frame of FIG. 1; FIG. 4 shows a schematic structural view of the first pipe bracket of FIG. 1; fig. 5 shows a schematic structural view of the stop block in fig. 1.

As shown in fig. 1 to 5, in one exemplary embodiment, the auxiliary device for an arc-shaped pipe may include a first swing assembly 100, a second swing assembly 200, an angle adjustment guide unit 300, a first radial moving unit 400, a second radial moving unit 500, a first stopper assembly, and a fastening unit.

The first swing assembly 100 and the second swing assembly 200 have the same structure. Therefore, in the following description, a detailed description will be given mainly taking the structure of the first swing assembly 100 as an example.

The first swing assembly 100 may include a first swing frame 110 and a first pipe bracket 120 disposed on the first swing frame 110.

As shown in fig. 2 and 3, the first swing frame 110 may include a hollowed-out first swing frame body and a first mounting beam 111 disposed within the first swing frame body. The first swing frame body is composed of five beams connected end to end, that is, the first swing frame 110 is composed of a frame structure formed by connecting a first beam 112, a second beam 113, a third beam 114, a fourth beam 115 and a fifth beam 116. A first end of the first mounting beam 111 is connected to a connection of the first beam 112 and the second beam 113, and a second end of the first mounting beam 111 is connected to a connection of the fourth beam 115 and the fifth beam 116. The first mounting beam 111 divides the first swing frame body into two parts. Wherein the first part is a triangular frame structure formed by the first beam 112, the fifth beam 116 and the first mounting beam 111. The second part is a rectangular frame structure consisting of a second beam 113, a third beam 114, a fourth beam 115 and a first mounting beam 111. The rectangular frame structure forms a first mounting opening 117 for mounting a first pipe bracket 120.

The first mounting beam 111 is provided with a through hole through which a first lead screw 410 (to be described later) passes and a first mounting groove 118. The first mounting groove 118 is used to mount a first adjusting handwheel 420 (to be described later).

The first pipe bracket 120 is disposed in the first mounting opening 117 and functions to carry the arc-shaped pipe. As shown in fig. 4, the first pipe bracket 120 is formed with a first clamping opening 121 through which the arc tube passes. The first clamping opening 121 is formed in a ring shape corresponding to the arc tube. The first pipe bracket body is of a square structure, the central part of the first pipe bracket body is provided with a hole, and an annular clamping space (namely, a first clamping opening) is formed. The arcuate tube may pass through and be placed in the first clamping opening 121.

As shown in fig. 1, after the arc tube is placed in the first clamping opening 121, in order to more firmly clamp the arc tube, the arc tube 1 may be fixed with respect to the first tube bracket 120 by a fastening unit. The fastening unit may comprise one or more fasteners. The fastener may be a jackscrew 710. The second pipe bracket 220 is provided with a through hole through which the jack screw 710 passes. The jackscrew 710 may have a pointed end that passes through the through hole and abuts against the outer wall of the arc tube 1. The arc-shaped pipeline 1 can be fixed by screwing the jackscrew 710, and the accuracy of line drawing is improved. Besides the fixing function, the size of the inner diameter of the first clamping opening 121 can be changed by rotating the jackscrew 710, so that the requirements of arc-shaped pipelines 1 with different pipe diameters can be met. In the present embodiment, four top threads 710 are uniformly spaced along the circumferential direction, but the present invention is not limited thereto, and besides the top threads 710, other fastening members may be used, and the number and arrangement of the top threads 710 may be adjusted as needed.

The first radial moving unit 400 is configured to move the first pipe bracket 120 back and forth relative to the first swing frame 110 along the bending radius direction R of the arc pipes 1 to meet the requirement of arc pipes with different bending radii.

The first radial moving unit 400 may include a first lead screw 410. The first lead screw 410 is disposed along the bending radius direction R and a first end of the first lead screw 410 is fixedly connected to the first pipe bracket 120, and a second end of the first lead screw 410 is threadedly connected to the first swing frame 110. The first pipe bracket 120 can be moved back and forth on the first swing frame 110 by the rotation of the first lead screw 410.

A first adjusting handwheel 420 may also be provided for ease of operation. As mentioned above, the first swing frame 110 is provided with the first mounting groove 118, the first adjusting handwheel 420 can be disposed in the first mounting groove 118, the first adjusting handwheel 420 is sleeved on the first lead screw 410, and the first adjusting handwheel 420 is provided with the threaded hole 126 for being in threaded connection with the first lead screw 410. By rotating the first adjusting handwheel 420, the first lead screw 410 is driven to rotate, and the first pipe bracket 120 is driven to move to a proper position relative to the first swing frame 110.

That is, the first lead screw 410 functions to connect the first swing frame 110, the first pipe bracket 120, and the first adjustment hand wheel 420, and to translate rotation of the first adjustment hand wheel 420 into movement of the first pipe bracket 120 relative to the first swing frame 110. However, the present invention is not limited thereto, and the first radial moving unit 400 may also be other driving elements for realizing radial movement, which can drive the first pipe bracket 120 and the first swing frame 110 to move relatively, so as to adapt to the arc pipes 1 with different bending radii, for example, an air cylinder, an electric lead screw, or a bolt with a nut, etc.

The first swing frame 110 may have a scale formed thereon. For example, the second beam 113 may be formed with a scale 119 on the side thereof to visually and accurately determine the moving distance of the first pipe bracket 120 with respect to the first swing frame 110, so that the auxiliary device is suitable for arc pipes 1 having different bending radii.

To ensure that the first pipe bracket 120 moves in a predetermined trajectory relative to the first swing frame 110. The first pipe bracket 120 may be disposed on the first swing frame 110 by a first stop assembly. The first limit stop assembly may include a first guide rail 610 and a first rail groove extending in a bending radius direction of the arc-shaped duct 1 and engaged with each other, the first guide rail 610 being formed on one of the first pipe bracket 120 and the first swing frame 110, the first rail groove being formed on the other one of the first pipe bracket 120 and the first swing frame 110 and being movable with respect to the first guide rail 610.

In the embodiment shown in the drawings, the first rail groove may be formed on the top and bottom surfaces of the first pipe bracket 120. The first rail groove may have a groove structure. The first rail 610 may be formed in a protruding structure that can be received in the groove structure and can slide relative thereto, and the first rail 610 may be formed in a linear shape.

The first guide rail 610 and the first track groove are nested with each other, and the arrangement positions thereof are interchangeable. The first guide rail 610 is engaged with the first rail groove, so that the first pipe bracket 120 can play a role of auxiliary guide during moving relative to the first swing frame 110, and the degree of freedom of movement is restricted.

In the present embodiment, as shown in fig. 1 and 4, the top surface of the first pipe bracket 120 faces the second beam 113 of the first swing frame, and the first guide rail 610 is formed on the second beam 113 of the first swing frame. Two cards (i.e., a first card 122 and a second card 123) may be formed on the top surface of the first pipe carriage 120. The first and second seizing plates 122 and 123 face and are spaced apart from each other to form a first track groove.

Wherein one of the first catch plate 122 and the second catch plate 123 is detachably connected with the first pipe bracket 120. In this embodiment, the first catch plate 122 may be integrally formed on the top surface of the first pipe bracket 120. The second catch plate 123 and the first pipe bracket 120 are detachably connected together by a connecting pin 124. The number of the connecting pins 124 may be four. The first pipe bracket body may be formed with coupling pin holes 125 corresponding to the coupling pins 124.

When the first pipe bracket 120 is installed in the first installation opening 117, the first clamping plate 122 is attached to one side wall of the first guide rail 610, the first clamping plate 122 is attached to the other side wall of the first guide rail 610, and the connecting pin 124 is inserted into the connecting pin hole 125, so that the second clamping plate 123 and the first pipe bracket 120 are connected together, a first rail groove is formed between the first clamping plate 122 and the second clamping plate 123, and the first guide rail 610 can be nested in the first rail groove, so that the first guide rail 610 and the first rail groove cannot be separated from each other in the direction of the bending radius of the arc-shaped rail. When it is desired to remove the first pipe bracket 120 from the first swing frame 110, the connecting pin 124 can be removed from the connecting pin hole 125 and the second catch plate 123 can be removed to facilitate the disengagement of the first pipe bracket 120 from the first guide rail 610.

Similarly, the fourth beam 115 of the first swing frame may also have a guide rail formed thereon, and two clamping plates spaced apart from each other may be further provided on the bottom surface (the side facing the fourth beam 115) of the first pipe bracket 120 to form a rail groove. So that the upper and lower sides of the first pipe bracket 120 are engaged with the guide rails and the rail grooves to guide and restrict the first pipe bracket 120 from moving in the bending radius direction R of the arc-shaped duct 1 with respect to the first swing beam.

The second swing assembly 200 may include a second swing frame 210 and a second pipe bracket 220 disposed on the second swing frame 210. The second pipe bracket 220 is formed with a second clamping opening 221 through which the arc tube 1 passes. The second clamping port 221 may be formed in a ring shape corresponding to the arc tube 1. The second swing frame 210 may be formed with a second mounting opening therein, and the second pipe bracket 220 is seated in the second mounting opening. The second pipe bracket 220 is provided with a through hole for a fastening member (e.g., a jackscrew) to pass through, and the jackscrew passes through the through hole and then butts against the outer wall of the arc-shaped pipe 1. Through rotating the jackscrew and then changing the internal diameter size of second centre gripping mouth 221 on second pipe bracket 220 to satisfy the arc pipeline 1 of different pipe diameters, and the jackscrew can be fixed arc pipeline 1 to the accessible is screwed up, promotes the accuracy of setting-out. The second swing frame 210 is provided with a second mounting groove. The structure of the second swing frame 210 is the same as that of the first swing frame 110 and will not be described in detail.

The second radial moving unit 500 may be used to move the second pipe bracket 220 back and forth in the bending radius direction R of the arc-shaped pipe with respect to the second swing frame 210. The second radial direction moving unit 500 is similar in structure and function to the first radial direction moving unit 400.

For example, the second radial moving unit 500 may include a second lead screw 510. The second lead screw 510 is disposed along the bending radius direction, a first end of the second lead screw 510 is fixedly connected to the second pipe bracket 220, and a second end of the second lead screw 510 is in threaded connection with the second swing frame 210.

A second mounting groove is formed in the second swing frame 210, a second adjusting hand wheel 520 is arranged in the second mounting groove, the second adjusting hand wheel 520 is sleeved on the second lead screw 510, and a threaded hole in threaded connection with the second lead screw 510 is formed in the second adjusting hand wheel 520.

The second pipe bracket 220 is disposed on the second swing frame 210 by a second spacing assembly. The specific structure of the second limiting assembly is the same as that of the first limiting assembly, and the description is not repeated.

For example, the second limit stop assembly may include a second guide rail 620 and a second rail groove that extend in a bending radius direction of the arc-shaped pipe 1 and are engaged with each other, the second guide rail 620 being formed on one of the second pipe bracket 220 and the second swing frame 210, and the second rail groove being formed on the other of the second pipe bracket 220 and the second swing frame 210 and being movable with respect to the second guide rail 620.

Second rail grooves may be formed on the top and bottom surfaces of the second pipe bracket 220, the second rail grooves may be a groove structure, and the second guide rail 620 may be formed in a protrusion structure that can be received in the groove structure and can slide relative thereto. The second guide rail 620 and the second rail groove are nested with each other, and their positions are interchangeable.

Two blocks of clamping plates, namely, a third clamping plate 222 and a fourth clamping plate, can be formed on the top surface and the bottom surface of the second pipe bracket 220, the third clamping plate 222 and the fourth clamping plate are spaced apart to form a second track groove, wherein one of the third clamping plate 222 and the fourth clamping plate is detachably connected with the second pipe bracket 220. The third card 222 and the fourth card are identical in structure and arrangement to the first card 122 and the second card 123, and are not described in detail herein. In this embodiment, the third clamping plate 222 and the second pipe bracket 220 may be connected by a connecting pin.

The second adjusting handwheel 520 can be rotated to drive the second lead screw 510 to rotate, so as to drive the second pipe bracket 220 to move on the second guide rail 620 of the second swing frame 210, so as to meet the requirements of the arc-shaped pipes 1 with different bending radii.

The second swing frame 210 is pivotally connected to the first swing frame 110 to adjust the opening and closing angle between the second swing frame 210 and the first swing frame 110, so as to satisfy the measurement and/or line drawing of different angles of the arc-shaped pipeline.

In this embodiment, the second swing frame 210 and the first swing frame 110 may be pivotally connected by a hinge 800. The hinge 800 functions to provide a center of rotation for the entire device.

The scale 801 for reading the bending angle of the arc-shaped pipeline can be formed on the hinge 800, generally ranging from 0 degree to 90 degrees, and an angle range can be established according to the bending degree and the size of the arc-shaped pipeline to display the opening and closing angle between the second swing frame 210 and the first swing frame 110, so that the opening and closing angle between the first swing frame 110 and the second swing frame 210 can be measured, and further the angle measurement of the arc-shaped pipeline 1 is realized.

The hinge 800 may be removably connected to the second swing frame 210 and the first swing frame 110 by fasteners, such as bolts. The hinge 800 may be provided with a threaded hole for a bolt to pass through. The hinge 800 is connected to the first swing frame 110 and the second swing frame 210 by fastening bolts 900.

An angle adjustment guide unit 300 may be further included in order to guide and limit the rotation between the second swing frame 210 and the first swing frame 110. The angle adjustment guide unit 300 may play a role of auxiliary guide during the rotation of the first swing frame 110 with respect to the second swing frame 210, restricting the degree of freedom of the rotation.

As shown in fig. 1, 2 and 5, the angle adjustment guide unit 300 may include a rotation shaft 310, a guide shaft 320, and a stopper 330. The hinge 310 may be provided on one of the second pipe bracket 220 and the first swing frame 110. The guide shaft 320 may be provided on the other one of the second tube bracket 220 and the first swing frame 110.

In the present embodiment, the rotation shaft 310 is fixedly provided on the first swing frame 110, and the guide shaft 320 is provided on the second swing frame 210.

One end of the limiting frame 330 is rotatably connected to the rotating shaft 310, a guide groove 331 is formed on the limiting frame 330, and the guide shaft 320 is inserted into the guide groove 331 and slidably disposed in the guide groove 331. With the swing of the second swing frame 210, the guide shaft 320 moves along the guide groove 331 of the stopper frame 330.

The spacing frame 330 may include a first guide rod 332 and a second guide rod 333. A first end of the first guide lever 332 is rotatably coupled to the rotation shaft 310. A first end of the second guide rod 333 is connected to a second end of the first guide rod 332, and the second guide rod 333 forms an angle θ with the first guide rod 332. The guide groove 331 is formed on the second guide rod 333 in a length direction. The angle of the included angle θ ensures that the guide shaft 320 slides relatively in the longitudinal direction in the guide groove 331 when adjusting the opening and closing angle between the second swing frame 210 and the first swing frame 110. For example, the included angle θ may be 60 to 120 °. Considering that it is portable after being folded up, as shown in fig. 5, the angle θ may preferably be 90 °, that is, the second guide rod 333 and the first guide rod 332 are perpendicular to each other, so that the volume occupied by the auxiliary device when it is folded up is small in the closed state as shown in fig. 2. The invention is not limited thereto and the angle of the included angle may also vary depending on the size of the curved pipe being measured.

After the opening and closing degree of the first and second swing frames 110 and 210 is properly adjusted, the angle adjustment guide unit 300 may further include a locking member for locking the relative sliding between the guide shaft 320 and the guide groove 331 in order to maintain the adjusted drawn line angle. The locking member may be a nut fitted over the guide shaft 320. When the second swing frame 210 and the first swing frame 110 rotate to a required opening and closing angle, the limiting frame 330 and the second swing frame 210 can be fixed by screwing the nuts, so that the rotation of the second swing frame 210 and the first swing frame 110 is limited, and the accuracy of drawing the line on the arc-shaped pipeline 1 is improved.

The limiting frame 330 can also be formed with a scale 334, and the angle of the arc-shaped pipeline can be verified again by reading the scale 334 on the limiting frame 330.

According to the auxiliary device of the arc-shaped pipeline 1, the sizes of the pipe bracket and the swing frame can be adjusted according to the pipe diameter of the actual arc-shaped pipeline 1.

In addition, the auxiliary device may further include a cutting tool and a line marking tool. The line marking tool may be a stone pen.

Hereinafter, a use process of the auxiliary device according to the exemplary embodiment of the present invention will be described with reference to the accompanying drawings.

And S1, calculating the angle of the arc-shaped pipeline 1 needing drawing lines, horizontally placing the arc-shaped pipeline 1 by using a height gauge, and drawing four reference lines on the arc-shaped pipeline 1. The number of reference lines can be adjusted as desired, for example, to two, three, five or more reference lines.

S2, the first adjusting handwheel 420 and the second adjusting handwheel 520 are rotated to drive the first lead screw 410 and the second lead screw 510, so that the first pipe bracket 120 moves to a proper position along the first guide rail 610 on the first swing frame 110, and the second pipe bracket 220 moves to a proper position along the second guide rail 620 on the second swing frame 210.

S3, the arc-shaped pipeline 1 is put in through the first clamping opening 121 of the first pipe bracket 120 and the second clamping opening 221 of the second pipe bracket 220.

And S4, rotating the first swing frame 110 to a required angle relative to the second swing frame 210 according to the angle scale on the hinge 800.

S5, adjusting the four top wires 710 on the first tube bracket 120 and the second tube bracket 220, and adjusting the tips of the four top wires 710 to align with the four reference lines. Then four top screws 710 are screwed down to fix the arc-shaped pipeline 1.

And S6, checking whether the corresponding angle on the hinge 800 is correct again, and screwing down the bolt to relatively fix the first swing frame 110 and the second swing frame 210 after the corresponding angle is correct.

And S7, drawing the line on the arc-shaped pipeline 1 by using a stone pencil.

And S8, performing cutting operation by using the cutting tool.

According to the auxiliary device for the arc-shaped pipeline, the opening and closing angle of the swing frame can be adjusted, the measurement and line drawing of the arc-shaped pipeline at different angles are met, the angle is engraved on the hinge, the rotating angle of the swing frame can be accurately measured, and the angle of the arc-shaped pipeline can be accurately and quickly determined.

According to the auxiliary device for the arc-shaped pipeline, the adjusting hand wheel is adjusted to rotate, the lead screw is driven to rotate, and the pipe bracket is driven to move back and forth, so that different arc-shaped pipelines are met.

According to the auxiliary device for the arc-shaped pipelines, the scales are arranged on the swing frames, and the moving distance of the pipe bracket on the guide rail can be adjusted through the scales on the two swing frames, so that the arc-shaped pipelines with different bending radiuses can be met.

According to the auxiliary device for the arc-shaped pipeline, the scales can be formed on the limiting frame, and the angle of the arc-shaped pipeline can be verified again by reading the scales on the limiting frame.

According to the auxiliary device for the arc-shaped pipeline, the limit frame is arranged on the swing frame, and the swing frame can be prevented from deflecting when a bolt on the limit frame is screwed down in the line drawing process, so that the required angle of the arc-shaped pipeline is ensured, and the line drawing precision is improved.

According to the auxiliary device of the arc-shaped pipeline, each pipe bracket is provided with the jackscrew, and the arc-shaped pipeline can not rotate in the line drawing process by rotating the jackscrews, so that the line drawing accuracy is ensured, and the requirement for arc-shaped pipelines with different pipe diameters can be met.

The auxiliary device of the arc-shaped pipeline provided by the exemplary embodiment of the invention can be used for measuring and drawing the angle of the arc-shaped pipeline, improves the accuracy of angle measurement and the accuracy of drawing, is simple to operate, can be operated by one person, occupies a small space and is convenient to carry.

Although the present invention has been described above in connection with exemplary embodiments, it will be apparent to those skilled in the art that various modifications and changes may be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the invention as defined in the appended claims.