Centering aid for laying heating pipes

Abstract

The utility model relates to a kind of centering auxiliary devices for heating pipeline laying, including bottom plate, bracket for the heating pipeline is passed in is equipped on the bottom plate, bracket is equipped with connecting disc, the connecting disc is spliced into by base and link portion, the base is installed in bracket, the link portion is equipped with the guide slot of radial arrangement, the guide slot is multiple and evenly distributed according to circumference, centering block is equipped in the guide slot, detachable clamping block is equipped in the end of centering block towards the center of circle, arc face that is compatible with the radian of heating pipeline is equipped on the clamping block, rotatable cam disc is equipped on the connecting disc, the cam disc is slid along the path of guide slot by rotating, to push heating pipeline towards the center of circle, realize the centering of heating pipeline.The utility model has the following advantages and effects: adjacent heating pipeline can be centered when connecting, to ensure that the port of adjacent heating pipeline can be aligned.

Description

Technical Field

[0001] This utility model relates to the field of pipeline laying technology, specifically to a centering auxiliary device for laying heating pipelines. Background Technology

[0002] In pipeline installation, longer pipelines are usually composed of multiple pipe sections connected together. Pipe connection methods include welding, threaded joint connection, and grooved pipe fitting connection. During the connection operation, the two pipe sections to be connected need to be clamped with auxiliary devices to avoid accidental movement between the two pipes during the connection.

[0003] For example, Chinese patent document CN220463673U discloses a pipeline laying auxiliary device, including a base plate and a pipeline body. A centering block is slidably connected to the top of the base plate, and a fixing block is bolted to the top of the centering block. A bidirectional threaded rod is rotatably connected to the inner wall of the fixing block, and a clamping mechanism is threadedly connected to the surface of the bidirectional threaded rod. The pipeline body is clamped in the inner wall of the clamping mechanism. The clamping mechanism includes a clamping block, a supporting block, and a movable block. The top of the movable block is bolted to the bottom of the supporting block, and the inner wall of the movable block is threadedly connected to the surface of the bidirectional threaded rod.

[0004] In the above technical solution, when connecting pipes, the clamping blocks on both sides can be moved towards or away from each other to clamp pipes of different specifications and prevent the pipes from shifting during the connection process. However, when connecting adjacent pipes, the two pipe ends need to be aligned, otherwise it will be difficult to weld or the connectors will be damaged. However, the above solution can only prevent pipe shifting and cannot assist in the alignment between pipes, which may cause adjacent pipes to be out of sync, thus affecting the accuracy of connecting adjacent pipes. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a centering auxiliary device for laying heating pipelines, which can center adjacent heating pipelines when they are connected, so as to ensure that the ports of adjacent heating pipelines can be aligned.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a centering auxiliary device for laying heating pipelines, comprising a base plate, a bracket for the heating pipeline to pass through on the base plate, a connecting plate on the bracket, the connecting plate being assembled from a base and a connecting part, the base being installed on the bracket, and a radially arranged guide groove on the connecting part, the guide groove being multiple and evenly distributed around the circumference, a centering block being provided in the guide groove, the centering block having a detachable clamping block at one end facing the center, the clamping block having an arc surface adapted to the curvature of the heating pipeline, and a rotatable cam disk on the connecting plate, the cam disk rotating to drive the centering block to slide along the path of the guide groove, thereby pushing the heating pipeline toward the center and achieving centering of the heating pipeline.

[0007] The present invention is further configured such that: the outer periphery of the connecting disk is provided with an arc-shaped groove, the arc-shaped groove is multiple and evenly distributed around the circumference, the outer periphery of the cam disk is provided with a protruding guide flange, the guide flange is disposed in the arc-shaped groove and can move along the path of the arc-shaped groove.

[0008] The present invention is further configured such that: the base is provided with a protruding connecting block between adjacent arc-shaped grooves, the connecting block is provided with a first threaded hole, the connecting part is provided with a second threaded hole opposite to the first threaded hole, and the second threaded hole and the first threaded hole are fixed together by fasteners.

[0009] The present invention is further configured such that: the cam disk is provided with an arc-shaped guide opening, the outer side of the arc-shaped guide opening gradually shifts towards the center along the inner side, the centering block is provided with a push rod, one end of the push rod extends to the arc-shaped guide opening and is coupled with the arc-shaped guide opening, and the bracket is provided with a driving mechanism on the outer side, the driving mechanism being used to drive the cam disk to rotate.

[0010] The present invention is further configured such that: the connecting part is provided with a downwardly recessed installation space on both sides of the guide groove; a limiting plate is provided in the installation space; one end of the limiting plate is installed in the installation space, and the other end extends toward the centering block and contacts the surface of the centering block; a third threaded hole is provided in the installation space; a fourth threaded hole is provided on the limiting plate opposite to the third threaded hole; and the fourth threaded hole and the third threaded hole are fixed together by fasteners.

[0011] The present invention is further configured such that: the centering block is provided with a connecting hole for inserting a push rod; the centering block is provided with an integrally formed connecting sleeve at the connecting hole; one end of the connecting sleeve is provided with a clamping claw inclined toward the axis of the connecting hole; there are multiple clamping claws evenly distributed around the circumference; a locking sleeve is fitted around the outer circumference of the connecting sleeve to form a threaded engagement with the connecting sleeve; the inner side of the locking sleeve is provided with an inclined surface that contacts the outer side of the clamping claw; the inclined surface contacts the outer side of the clamping claw to push the clamping claw toward the axis of the connecting hole, thereby fixing the push rod inserted into the connecting hole.

[0012] The present invention is further configured such that: the driving mechanism includes a cylinder, a connecting flange is provided on the outer side of the cam disc, the output end of the cylinder is movably connected to the connecting flange, and the bottom of the cylinder is movably connected to the bracket.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] When welding adjacent heating pipes, the cam disc rotates, causing the centering block to move radially. This allows the centering opening formed on the inner side of the centering block to be fitted with the heating pipe to be welded. After the adjacent heating pipes are inserted into the centering openings from both sides, it ensures that the centers of the adjacent heating pipes are on the same axis. Furthermore, the arc surface on the clamping block, which matches the curvature of the heating pipe, can form line contact with the outer periphery of the heating pipe when the heating pipe is pushed to the center of the centering opening, thereby improving the stability of the heating pipe during support and centering. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial structural diagram of the present invention;

[0017] Figure 3 This is a partial exploded view of the present invention;

[0018] Figure 4 This is an exploded view of the connection between the push rod and the centering block in this utility model;

[0019] Figure 5 This is a cross-sectional view of the connection between the push rod and the centering block in this utility model.

[0020] In the figure: base plate 1; bracket 2; connecting plate 3; base 31; arc groove 311; connecting block 312; first threaded hole 312a; connecting part 32; guide groove 321; second threaded hole 322; installation space 323; third threaded hole 323a; centering block 4; clamping block 5; cam plate 6; guide flange 61; arc guide opening 62; push rod 7; limit plate 8; fourth threaded hole 81; connecting sleeve 9; clamp 91; locking sleeve 10; inclined surface 101; cylinder 11; connecting flange 12; heating pipe 100; centering opening 200. Detailed Implementation

[0021] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] like Figures 1 to 5As shown, this utility model discloses a centering auxiliary device for laying heating pipes, including a base plate 1, a bracket 2 for the heating pipe 100 to pass through on the base plate 1, a connecting plate 3 on the bracket 2, the connecting plate 3 being spliced ​​from a base 31 and a connecting part 32, the base 31 being installed on the bracket 2, the connecting part 32 having radially arranged guide grooves 321, multiple guide grooves 321 being evenly distributed circumferentially, a centering block 4 being provided in the guide groove 321, the end of the centering block 4 facing the center having a detachable clamping block 5, and a rotatable cam disk 6 being provided on the connecting plate 3, the cam disk 6 rotating to drive the centering block 4 to slide along the path of the guide groove 321, thereby pushing the heating pipe 100 towards the center, achieving centering... The centering of the heating pipe 100 is achieved by rotating the cam disk 6 during welding of adjacent heating pipes 100, which in turn causes the centering block 4 to move radially. This allows the centering opening 200 formed on the inner side of the centering block 4 to be fitted with the heating pipe 100 to be welded. After the adjacent heating pipes 100 are inserted into the centering openings 200 on both sides, it ensures that the centers of the adjacent heating pipes 100 are on the same axis. Furthermore, the arc surface on the clamping block 5, which is adapted to the curvature of the heating pipe 100, can form line contact with the outer periphery of the heating pipe 100 when the heating pipe 100 is pushed to the center of the centering opening 200, thereby improving the stability of the heating pipe 100 during centering and support.

[0024] In this embodiment, the connection structure between the cam disk 6 and the connecting disk 3 is as follows: an arc-shaped groove 311 is provided on the outer periphery of the connecting disk 3. There are multiple arc-shaped grooves 311 and they are evenly distributed around the circumference. A protruding guide flange 61 is provided on the outer periphery of the cam disk 6. By setting the guide flange 61 in the arc-shaped groove 311, the cam disk 6 is limited to prevent it from detaching from the connecting disk 3. By driving the guide flange 61 to move along the path of the arc-shaped groove 311, the cam disk 6 can be driven to rotate around the axis of the connecting disk 3.

[0025] The connecting disc 3, which is formed by splicing a base 31 and a connecting part 32, has the following specific structure: the base 31 has a protruding connecting block 312 located between adjacent arc-shaped grooves 311, and the connecting block 312 has a first threaded hole 312a. The connecting part 32 has a second threaded hole 322 opposite to the first threaded hole 312a. The second threaded hole 322 and the first threaded hole 312a are fixed together by fasteners (such as screws). When assembling the cam disc 6 and the connecting disc 3, the guide flange 61 is first placed into the base 31. Inside the arc-shaped groove 311, the second threaded hole 322 on the connecting part 32 is aligned with the first threaded hole 312a on the connecting block 312. Then, the base 31 and the connecting part 32 are fixed together by screwing in fasteners to form the connecting disc 3. After the connecting part 32 is connected to the base 31, the arc-shaped groove 311 can be axially closed to prevent the guide flange 61 from detaching from the arc-shaped groove 311. Therefore, by setting the base 31 and the connecting part 32 to be detachable, the convenience of connecting the cam disc 6 and the connecting disc 3 can be effectively improved.

[0026] In this embodiment, the structure in which the cam disk 6 rotates to drive the centering block 4 to move along the guide groove 321 is as follows: the cam disk 6 is provided with an arc-shaped guide opening 62, and the outer side of the arc-shaped guide opening 62 gradually shifts towards the center along the inner side. The centering block 4 is provided with a push rod 7, one end of which extends to the arc-shaped guide opening 62 and is coupled with the arc-shaped guide opening 62. The bracket 2 is provided with a driving mechanism on the outside. The driving mechanism is used to drive the cam disk 6 to rotate. After the cam disk 6 rotates, it can push the push rod 7 through the arc-shaped guide opening 62 to drive the centering block 4 to move along the guide groove 321, so that the clamping block 5 connected to the centering block 4 can move away from or closer to the center of the centering opening 200.

[0027] Furthermore, the connecting part 32 has recessed mounting spaces 323 on both sides of the guide groove 321. A limiting plate 8 is provided in the mounting space 323. One end of the limiting plate 8 is installed in the mounting space 323, and the other end extends toward the centering block 4 and contacts the surface of the centering block 4. This can limit the centering block 4 axially and prevent the centering block 4 from falling off the guide groove 321, thereby improving the stability of the centering block 4 moving along the guide groove 321. A third threaded hole 323a is provided in the mounting space 323. A fourth threaded hole 81 is provided on the limiting plate 8 opposite to the third threaded hole 323a. The fourth threaded hole 81 and the third threaded hole 323a are fixed by fasteners (such as screws). After the centering block 4 is assembled into the guide groove 321, the limiting plate 8 can be installed into the mounting space 323 by fasteners. This can prevent the positioning block from falling off while not affecting the convenience of assembling the centering block 4.

[0028] In this embodiment, the connection structure between the push rod 7 and the centering block 4 is as follows: the centering block 4 is provided with a connection hole for the push rod 7 to be inserted, and the centering block 4 is provided with an integrally formed connecting sleeve 9 at the connection hole. One end of the connecting sleeve 9 is provided with a clamping claw 91 that is inclined toward the axis of the connection hole. There are multiple clamping claws 91 and they are evenly distributed around the circumference. A locking sleeve 10 that can form a threaded engagement with the connecting sleeve 9 is fitted on the outer circumference of the connecting sleeve 9. After the centering block 4 is assembled into the guide groove 321, the push rod 7 is inserted from the connection hole into the arc-shaped guide opening 62. By rotating the locking sleeve 10, the clamping claws 91 can be pressed against the outer circumference of the push rod 7, thereby realizing the quick fixation of the push rod 7 and the centering block 4, which can effectively improve the overall assembly convenience. Specifically, the inner side of the locking sleeve 10 is provided with an inclined surface 101 that contacts the outer side of the gripper 91. The inclined surface 101 contacts the outer side of the gripper 91 to push the gripper 91 toward the axis of the connecting hole, thereby fixing the push rod 7 inserted into the connecting hole. Similarly, after reversing the locking sleeve 10, the pressure on the gripper 91 can be released, thereby reducing the positive pressure applied by the gripper 91 to the push rod 7, and thus the push rod 7 can be pulled out from the connecting hole.

[0029] In this embodiment, the specific structure of the drive mechanism includes a cylinder 11, a connecting flange 12 on the outer side of the cam disk 6, the output end of the cylinder 11 is movably connected to the connecting flange 12, and the bottom of the cylinder 11 is movably connected to the bracket 2, thereby avoiding interference when the cylinder 11 drives the cam disk 6 to rotate. In this way, the extension and retraction of the output end of the cylinder 11 can drive the cam disk 6 to rotate in different directions.

[0030] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A centering auxiliary device for laying heating pipelines, comprising a base plate, characterized in that, The base plate is provided with a bracket for the heating pipe to pass through. The bracket is provided with a connecting plate. The connecting plate is composed of a base and a connecting part. The base is installed on the bracket. The connecting part is provided with radially arranged guide grooves. There are multiple guide grooves and they are evenly distributed around the circumference. A centering block is provided in the guide groove. The end of the centering block facing the center is provided with a detachable clamping block. The clamping block is provided with an arc surface adapted to the curvature of the heating pipe. The connecting plate is provided with a rotatable cam disk. By rotating, the cam disk drives the centering block to slide along the path of the guide groove, so as to push the heating pipe towards the center and realize the centering of the heating pipe.

2. The centering auxiliary device for laying heating pipelines according to claim 1, characterized in that, The connecting disk has an arc-shaped groove on its outer periphery. There are multiple arc-shaped grooves evenly distributed around the circumference. The cam disk has a protruding guide flange on its outer periphery. The guide flange is located in the arc-shaped groove and can move along the path of the arc-shaped groove.

3. The centering auxiliary device for laying heating pipelines according to claim 2, characterized in that, The base is provided with a protruding connecting block between adjacent arc-shaped grooves. The connecting block is provided with a first threaded hole. The connecting part is provided with a second threaded hole opposite to the first threaded hole. The second threaded hole and the first threaded hole are fixed together by fasteners.

4. The centering auxiliary device for laying heating pipelines according to claim 1, characterized in that, The cam disk is provided with an arc-shaped guide opening. The outer side of the arc-shaped guide opening gradually shifts towards the center along the inner direction. The centering block is provided with a push rod. One end of the push rod extends to the arc-shaped guide opening and is coupled to the arc-shaped guide opening. The bracket is provided with a drive mechanism on its outer side. The drive mechanism is used to drive the cam disk to rotate.

5. A centering auxiliary device for laying heating pipelines according to claim 4, characterized in that, The connecting part has a recessed mounting space on both sides of the guide groove. A limiting plate is provided in the mounting space. One end of the limiting plate is installed in the mounting space, and the other end extends toward the centering block and contacts the surface of the centering block. A third threaded hole is provided in the mounting space. A fourth threaded hole is provided on the limiting plate opposite to the third threaded hole. The fourth threaded hole and the third threaded hole are fixed together by fasteners.

6. A centering auxiliary device for laying heating pipelines according to claim 4, characterized in that, The centering block has a connecting hole for inserting a push rod. The centering block has an integrally formed connecting sleeve at the connecting hole. One end of the connecting sleeve has a clamping claw inclined towards the axis of the connecting hole. There are multiple clamping claws evenly distributed around the circumference. A locking sleeve that can form a threaded engagement with the connecting sleeve is fitted on the outer circumference of the connecting sleeve. The inner side of the locking sleeve has an inclined surface that contacts the outer side of the clamping claw. By contacting the outer side of the clamping claw, the inclined surface pushes the clamping claw towards the axis of the connecting hole, thereby fixing the push rod inserted into the connecting hole.

7. A centering auxiliary device for laying heating pipelines according to claim 4, characterized in that, The drive mechanism includes a cylinder, a connecting flange is provided on the outer side of the cam disk, the output end of the cylinder is movably connected to the connecting flange, and the bottom of the cylinder is movably connected to the bracket.

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