A kind of auxiliary device for drilling positioning circle drawing on pipeline

Abstract

This utility model discloses an auxiliary device for drilling, positioning, and drawing circles on a pipe. It includes a pipe, a horizontal plate at the top of which a bearing is fixedly inserted near the left side. A central column is fixedly inserted through the inner cavity of the bearing. A first top plate is fixedly connected to the top of the central column. A first limiting groove is formed at the top of the horizontal plate. In this auxiliary device, one hand is placed on the first top plate, and the other hand on a second top plate. Pressure is applied downwards to the second top plate, causing chalk to move downwards until it touches the pipe. The second top plate is then pushed, causing the horizontal plate to rotate around the central column via a movable rod. During this process, the chalk also rotates with the horizontal plate and the movable rod, drawing a positioning hole on the pipe. This completes the auxiliary operation of drilling, positioning, and drawing circles. The operation is not only simple but also greatly improves accuracy, making it suitable for widespread use.

Description

Technical Field

[0001] This utility model relates to the field of pipeline processing technology, specifically to an auxiliary device for drilling, positioning, and drawing circles on a pipeline. Background Technology

[0002] With the increasing development of the pipeline manufacturing industry, the technical requirements for the equipment and tools used in pipeline fabrication are also becoming higher. In existing technologies, the compasses used for drilling, boring, positioning, and drawing circles on pipelines are mainly ordinary compasses consisting of a fixed leg and a movable leg connected by a coupling. However, due to their structural limitations, the operation of drilling, boring, positioning, and drawing circles on pipelines is complex, labor-intensive, and time-consuming. This is especially true for hot-drawn nozzles used in nuclear power plant main steam superpipelines, where drilling pre-drilled holes (which also serve as positioning holes) on the main pipe requires drawing two concentric circles first. Drawing circles on the curved surface of the pipe with high precision is difficult to achieve, causing inconvenience in use. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, one of the objectives of this utility model is to provide an auxiliary device for drilling, positioning and drawing circles on a pipeline.

[0004] One of the objectives of this utility model is achieved through the following technical solution:

[0005] An auxiliary device for drilling, positioning, and drawing circles on a pipe includes a pipe, a horizontal plate at the top of the pipe, a bearing fixedly inserted near the left side of the horizontal plate, a central column fixedly passing through the inner cavity of the bearing, a first top plate fixedly connected to the top of the central column, a first limiting groove at the top of the horizontal plate extending to the bottom of the horizontal plate, a movable block movably inserted into the inner cavity of the first limiting groove, a threaded rod fixedly connected to the front side of the movable block, a second limiting groove at the front side of the first limiting groove, the front end of the threaded rod movably passing through the second limiting groove and fitted with a nut, a through hole on the movable block, a movable rod movably passing through the inner cavity of the through hole, a spring movably fitted to the outer edge of the movable rod, a second top plate fixedly connected to the top of the movable rod, a fixed cylinder fixedly connected to the bottom end of the movable rod, chalk movably inserted into the bottom end of the fixed cylinder, a screw hole on the right side of the fixed cylinder, and a locking screw inserted into the inner cavity of the screw hole.

[0006] Preferably, a conical head is fixedly connected to the bottom end of the central column, and the bottom end of the conical head is in contact with the top of the pipe.

[0007] Preferably, a rubber head is fixedly connected to the left end of the locking screw, and the rubber head is in contact with the side wall of the chalk.

[0008] Preferably, the bottom end of the spring is fixedly connected to the movable block, and the top end of the spring is fixedly connected to the second top plate.

[0009] Preferably, a limiting block is fixedly connected to the rear side of the movable block, and a third limiting groove is provided on the rear side of the first limiting groove, with the rear side of the limiting block movably passing through the third limiting groove.

[0010] Preferably, the nut is threadedly connected to the threaded rod, and two first paddles are fixedly connected to the front side of the nut.

[0011] Preferably, the locking screw is threaded to the screw hole, and two second levers are fixedly connected to the right side of the locking screw.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model discloses an auxiliary device for drilling, positioning, and drawing circles on pipes. One hand is placed on the first top plate, and the other hand is placed on the second top plate. Pressure is applied downward to the second top plate, causing the chalk to move downward until it touches the pipe. Then, the second top plate is pushed, and the second top plate drives the horizontal plate to rotate around the central column through the movable rod. During this process, the chalk also rotates with the horizontal plate and the movable rod. The chalk draws the positioning hole on the pipe, thus completing the auxiliary operation of drilling, positioning, and drawing circles. The operation is not only simple, but also greatly improves the accuracy, making it suitable for widespread use.

[0014] 2. This utility model provides an auxiliary device for positioning and drawing circles when drilling holes on a pipe. When it is necessary to replace the chalk, the locking screw is loosened by using the second lever. The locking screw drives the rubber head to move away from the chalk, thereby releasing the chalk from its fixation. Then, a new chalk is replaced. The locking screw is then tightened by using the second lever again, so that the rubber head fits tightly with the chalk, thereby fixing the chalk in place. This completes the chalk replacement. The operation is simple and convenient for positioning and auxiliary operations.

[0015] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a frontal perspective view of the present invention;

[0017] Figure 2 This is a front perspective view of the central column of the component of this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4This is a front perspective view of the movable rod of this utility model component;

[0020] Figure 5 This is a front perspective view of the movable block of this utility model component;

[0021] Figure 6 This is a front perspective view of the fixing cylinder of this utility model;

[0022] Figure 7 This is a bottom perspective view of the fixing cylinder of the present invention;

[0023] Figure 8 This is a frontal perspective view of the rubber head component of this utility model;

[0024] Figure 9 This is a front perspective view of the horizontal plate of the component of this utility model;

[0025] Figure 10 This is a rear perspective view of the horizontal plate of the component of this utility model.

[0026] The following are the labels in the diagram: 1. Pipe; 2. Horizontal plate; 3. Bearing; 4. Central column; 5. Conical head; 6. First top plate; 7. First limiting groove; 8. Movable block; 9. Threaded rod; 10. Second limiting groove; 11. Nut; 12. First lever; 13. Through hole; 14. Movable rod; 15. Spring; 16. Second top plate; 17. Fixed cylinder; 18. Chalk; 19. Locking screw; 20. Second lever; 21. Screw hole; 22. Rubber head; 23. Limiting block; 24. Third limiting groove. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Please see Figure 1-10 This utility model provides a technical solution: an auxiliary device for drilling and positioning circles on a pipe, including a pipe 1, a horizontal plate 2 at the top of the pipe 1, a bearing 3 fixedly inserted into the horizontal plate 2 near the left side, a central column 4 fixedly passing through the inner cavity of the bearing 3, a conical head 5 fixedly connected to the bottom end of the central column 4, the bottom end of the conical head 5 fitting against the top of the pipe 1, a first top plate 6 fixedly connected to the top of the central column 4, a first limiting groove 7 opened at the top of the horizontal plate 2, and the first limiting groove 7 extending to the bottom of the horizontal plate 2. A movable block 8 is movably inserted into the inner cavity of the first limiting groove 7. A threaded rod 9 is fixedly connected to the front side of the movable block 8. A second limiting groove 10 is opened on the front side of the first limiting groove 7. The front end of the threaded rod 9 moves through the second limiting groove 10 and is fitted with a nut 11. The nut 11 is threadedly connected to the threaded rod 9. Two first paddles 12 are fixedly connected to the front side of the nut 11. A limiting block 23 is fixedly connected to the rear side of the movable block 8. A third limiting groove 24 is opened on the rear side of the first limiting groove 7. The rear side of the limiting block 23 moves through the third limiting groove 24.

[0031] A through hole 13 is provided on the movable block 8. A movable rod 14 is movably inserted through the inner cavity of the through hole 13. A spring 15 is movably sleeved on the outer edge of the movable rod 14. A second top plate 16 is fixedly connected to the top of the movable rod 14. The bottom end of the spring 15 is fixedly connected to the movable block 8. The top end of the spring 15 is fixedly connected to the second top plate 16. A fixed cylinder 17 is fixedly connected to the bottom end of the movable rod 14. A piece of chalk 18 is movably inserted into the bottom end of the fixed cylinder 17. A screw hole 21 is provided on the right side of the fixed cylinder 17. A locking screw 19 is inserted into the inner cavity of the screw hole 21. A rubber head 22 is fixedly connected to the left end of the locking screw 19. The rubber head 22 fits against the side wall of the chalk 18. The locking screw 19 and the screw hole 21 are connected by a thread. Two second levers 20 are fixedly connected to the right side of the locking screw 19.

[0032] Working principle: This utility model is an auxiliary device for drilling and positioning circles on pipes. During use, when it is necessary to draw positioning holes on pipe 1, first adjust the horizontal distance between chalk 18 and central column 4 according to the diameter of the positioning hole. During this process, the nut 11 is loosened by the first lever 12, thereby releasing the fixation of movable block 8. Then, the movable block 8 is moved horizontally. The movable block 8 moves in the inner cavity of the first limiting groove 7. The movable block 8 drives the threaded rod 9 to move in the inner cavity of the second limiting groove 10. The movable block 8 drives the limiting block 23 to move in the inner cavity of the third limiting groove 24. The movable block 8 drives the chalk 18 to move. When the horizontal distance between chalk 18 and central column 4 is the same as the diameter of the positioning hole, the nut 11 is tightened by the first lever 12, thereby fixing the movable block 8 in the inner cavity of the first limiting groove 7.

[0033] The horizontal plate 2 is moved to bring the conical head 5 into contact with the outside of the pipe 1. Then, the central column 4 and the contact point of the pipe 1 are kept perpendicular to each other. Then, one hand is placed on the first top plate 6 and pressure is applied downward to the first top plate 6. Then, the other hand is placed on the second top plate 16 and pressure is applied downward to the second top plate 16. The second top plate 16 pushes the movable rod 14 downward. The movable rod 14 moves in the inner cavity of the perforation 13. At the same time, the spring 15 is compressed. The movable rod 14 drives the chalk 18 downward to touch the pipe 1. Then, the downward pressure of the second top plate 16 is maintained. Then, the second top plate 16 is pushed. The second top plate 16 drives the horizontal plate 2 to rotate around the central column 4 through the movable rod 14. The horizontal plate 2 rotates on the outer edge of the central column 4 under the action of the bearing 3. During this process, the chalk 18 also rotates with the horizontal plate 2 and the movable rod 14. The chalk 18 draws the positioning hole on the pipe 1, thus completing the drilling positioning and circle drawing auxiliary operation. The operation is not only simple, but also greatly improves the accuracy and is suitable for widespread use.

[0034] When it is necessary to replace the chalk 18, loosen the locking screw 19 by using the second lever 20. The locking screw 19 will move the rubber head 22 away from the chalk 18, thereby releasing the chalk 18 from its fixation. Then replace it with a new chalk 18. Tighten the locking screw 19 again by using the second lever 20 so that the rubber head 22 fits tightly against the chalk 18, thereby fixing the chalk 18 in place. This completes the replacement of the chalk 18. The operation is simple and convenient for positioning and auxiliary operation.

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0040] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An auxiliary device for drilling, positioning, and drawing circles on a pipe, comprising a pipe (1), characterized in that: The top of the pipe (1) is provided with a horizontal plate (2), and a bearing (3) is fixedly inserted into the horizontal plate (2) near the left side. A central column (4) is fixedly inserted through the inner cavity of the bearing (3). A first top plate (6) is fixedly connected to the top of the central column (4). A first limiting groove (7) is opened on the top of the horizontal plate (2), and the first limiting groove (7) extends to the bottom of the horizontal plate (2). A movable block (8) is movably inserted into the inner cavity of the first limiting groove (7). A threaded rod (9) is fixedly connected to the front side of the movable block (8). A second limiting groove (10) is opened on the front side of the first limiting groove (7). The front end of the threaded rod (9) movably passes through the second limiting groove (10) and is fitted with a nut (1). 1) A through hole (13) is provided on the movable block (8). A movable rod (14) is movably inserted through the inner cavity of the through hole (13). A spring (15) is movably sleeved on the outer edge of the movable rod (14). A second top plate (16) is fixedly connected to the top of the movable rod (14). A fixed cylinder (17) is fixedly connected to the bottom of the movable rod (14). A chalk (18) is movably inserted into the bottom of the fixed cylinder (17). A screw hole (21) is provided on the right side of the fixed cylinder (17). A locking screw (19) is inserted into the inner cavity of the screw hole (21). A conical head (5) is fixedly connected to the bottom of the central column (4). The bottom of the conical head (5) is in contact with the top of the pipe (1).

2. The auxiliary device for drilling and positioning circles on a pipeline according to claim 1, characterized in that: A rubber head (22) is fixedly connected to the left end of the locking screw (19), and the rubber head (22) is in contact with the side wall of the chalk (18).

3. The auxiliary device for drilling and positioning circles on a pipeline according to claim 1, characterized in that: The bottom end of the spring (15) is fixedly connected to the movable block (8), and the top end of the spring (15) is fixedly connected to the second top plate (16).

4. The auxiliary device for drilling and positioning circles on a pipeline according to claim 1, characterized in that: The rear side of the movable block (8) is fixedly connected to a limiting block (23), and a third limiting groove (24) is provided on the rear side of the first limiting groove (7). The rear side of the limiting block (23) moves through the third limiting groove (24).

5. The auxiliary device for drilling and positioning circles on a pipeline according to claim 1, characterized in that: The nut (11) is threadedly connected to the threaded rod (9), and two first paddles (12) are fixedly connected to the front side of the nut (11).

6. The auxiliary device for positioning and drawing circles for drilling holes on a pipeline according to claim 1, characterized in that: The locking screw (19) is threaded to the screw hole (21), and two second paddles (20) are fixedly connected to the right side of the locking screw (19).

Images