Expanding device for PSP steel-plastic composite pipe

Abstract

The utility model provides a PSP steel-plastic composite pipe expanding device which comprises a bottom plate, a clamping assembly, a heating ring and an expanding assembly, and the clamping assembly, the heating ring and the expanding assembly are sequentially arranged on the bottom plate. The clamping assembly comprises a lower clamping plate, an upper clamping plate, a supporting plate, a top plate, a first air cylinder and a plurality of abutting assemblies, the lower clamping plate is arranged above the bottom plate, the bottom of the supporting plate is arranged above the bottom plate, the supporting plate is arranged on one side of the lower clamping plate, one end of the top plate is arranged on the top of the supporting plate, and the top plate is arranged above the lower clamping plate; the mounting end of the first air cylinder is connected with the bottom center of the top plate, the output end of the first air cylinder is connected with the top center of the upper clamping plate, and the abutting assemblies are arranged at the bottom of the upper clamping plate. The clamping assembly can be suitable for pipes with different diameters, the expanding head assembly is provided with expanding columns with different diameters, the expanding head assembly can ascend and descend through the lifting plate, the expanding head assembly can also be suitable for pipes with different diameters, the adaptability of the device is higher, and cost is saved.

Description

Technical Field

[0001] This utility model belongs to the field of pipe diameter expansion technology, and in particular relates to a PSP steel-plastic composite pipe diameter expansion device. Background Technology

[0002] Currently, PSP steel-plastic composite pipes are connected using mechanical connections and electromagnetic induction heat fusion connections. Both methods have drawbacks. First, regardless of the method used, the inner diameter of the fittings used for connecting the pipes is smaller than the pipe itself, resulting in a lower water flow rate. Second, mechanical connections have poorer sealing performance compared to heat fusion connections, posing a risk of leakage due to mechanical vibration or prolonged use. While electromagnetic induction heat fusion connections offer better sealing, they require even higher dimensional accuracy in both the pipes and fittings. Excessive deviation in accuracy can lead to insufficient weld strength or over-welding.

[0003] Therefore, a pipe expansion device is needed to obtain high-precision dimensions through mechanical expansion, and to connect fittings that match the expanded pipe size for socket connection. Then, electromagnetic induction heat fusion connection is used to ensure welding strength and that the fittings and pipes have the same diameter, so as to achieve a connection method that does not reduce water flow. Utility Model Content

[0004] In view of this, the present invention aims to propose a PSP steel-plastic composite pipe diameter expansion device to solve the problems of reduced water flow and easy leakage after pipe connection in the prior art.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A PSP steel-plastic composite pipe diameter expansion device includes a base plate, a clamping assembly, a heating ring, and a diameter expansion assembly, wherein the clamping assembly, the heating ring, and the diameter expansion assembly are sequentially arranged on the base plate.

[0007] The clamping assembly includes a lower clamping plate, an upper clamping plate, a support plate, a top plate, a first cylinder, and several abutment components. The lower clamping plate is positioned above the bottom plate, the bottom of the support plate is positioned above the bottom plate, and the support plate is positioned on one side of the lower clamping plate. One end of the top plate is positioned on top of the support plate, and the top plate is positioned above the lower clamping plate. The mounting end of the first cylinder is connected to the center of the bottom of the top plate, and the output end of the first cylinder is connected to the center of the top of the upper clamping plate. Several abutment components are evenly arranged along the bottom of the upper clamping plate along an arc-shaped groove. Each abutment component includes an abutment post and an arc-shaped abutment plate. One end of the abutment post is connected to the bottom of the upper clamping plate, and the other end of the abutment post is connected to the center of the convex surface of the arc-shaped abutment plate.

[0008] Furthermore, the lower clamping plate has an arc-shaped groove in the middle, which corresponds to the position of the heating ring.

[0009] Further, the upper corners of the lower clamping plate are provided with guide columns, the four corners of the upper clamping plate are provided with guide holes corresponding to the guide columns, and the upper clamping plate is slidably arranged on the guide columns through the first cylinder. The guide column plays a guiding role in the lifting of the upper clamping plate, so that the upper clamping plate rises and falls along the guide column, and the clamping of the pipe will not be offset.

[0010] Further, the end of the arc-shaped abutting plate away from the abutting column is provided with a rubber pad. The rubber pad contacts the pipe to avoid damage to the pipe caused by the direct abutment of the arc-shaped abutting plate on the pipe.

[0011] Further, the arc-shaped groove is used for placing the pipe, and the end of the pipe can extend into the heating ring. When the pipe is expanded, the pipe is placed in the arc-shaped groove, and the end of the pipe to be expanded is placed in the heating ring. The upper clamping plate is lowered by the first cylinder, so that the arc-shaped abutting plate abuts against the pipe, and the pipe is clamped. The clamping assembly can be applied to pipes of different diameters, has higher adaptability, and saves costs.

[0012] Further, the expanding assembly comprises two height adjusting plates, a lifting plate, a second cylinder, and an expanding head assembly. The two height adjusting plates are arranged on both sides of one end of the bottom plate, and each of the two height adjusting plates is provided with a plurality of first threaded holes uniformly distributed thereon.

[0013] The lifting plate is arranged between the two height adjusting plates, and the two ends of the lifting plate are provided with second threaded holes corresponding to the first threaded holes.

[0014] The lifting plate can be fixed between the two height adjusting plates by bolts, and the height of the lifting plate can be adjusted according to different first threaded holes, so as to be applicable to pipes of different diameters.

[0015] The mounting end of the second cylinder is arranged on one side of the lifting plate, the output end of the second cylinder extends through the lifting plate to the side of the lifting plate close to the clamping assembly and is connected with the expanding head assembly.

[0016] Further, the expanding head assembly comprises a first expanding column, a second expanding column, and a third expanding column, and the diameters of the first, second, and third expanding columns decrease in sequence.

[0017] The diameters of the first, second, and third expanding columns are different, so that the pipe can be expanded to different diameters, and the applicability is higher.

[0018] One end of the first expanding column is detachably connected with the output end of the second cylinder, the other end of the first expanding column is connected with one end of the second expanding column through a first connecting portion, and the other end of the second expanding column is connected with the third expanding column through a second connecting portion.

[0019] The first expanding column is detachably connected with the output end of the second cylinder, and the function is to replace the expanding head assembly of different specifications, so as to be suitable for more types of pipes.

[0020] Further, the first expanding column, the second expanding column and the third expanding column can be extended into the heating ring by the second cylinder.

[0021] The output end of the second cylinder is extended, so that the expanding head assembly is extended into the heating ring, and the pipe in the heating ring is expanded, and the pipe is heated by the heating ring during the expanding process, so that the expanding efficiency is improved.

[0022] Further, the heating ring is internally provided with a plurality of heating pipes, and the heating ring, the first cylinder, the second cylinder and the controller are electrically connected.

[0023] Compared with the prior art, the PSP steel-plastic composite pipe expanding device has the following advantages:

[0024] (1) The clamping assembly utilizes the first cylinder to lower the upper clamping plate, so that the arc-shaped abutting plate abuts against the pipe, and the arc-shaped abutting plate and the arc-shaped groove realize clamping of the pipe, and the guide column plays a guiding role in lifting of the upper clamping plate, so that the upper clamping plate is lifted along the guide column, and the clamping of the pipe will not be deviated, the clamping assembly can be suitable for pipes of different diameters, and the adaptability is stronger, and the cost is saved.

[0025] (2) The lifting plate can be fixed between the two height adjusting plates by bolts, and the height of the lifting plate can be adjusted according to different first threaded holes, so that pipes of different diameters can be used.

[0026] (3) The diameters of the first expanding column, the second expanding column and the third expanding column are different, so that the pipe can be expanded to different diameters, and the adaptability is stronger.

[0027] (4) The pipe after expanding not only improves the water flux, but also is more safe and reliable through electromagnetic induction heat fusion connection of the high-precision pipe and the connecting pipe. BRIEF DESCRIPTION OF DRAWINGS

[0028] The drawings that form a part of this application provide further understanding of the present application, and the illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0029] Fig. 1 The drawings that form a part of this application provide further understanding of the present application, and the illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0030] Fig. 2A clamping assembly side view schematic drawing of a PSP steel plastic composite pipe expanding device is described in the embodiment of the utility model.

[0031] Fig. 3 A diameter expanding assembly top view schematic drawing of a PSP steel plastic composite pipe expanding device is described in the embodiment of the utility model.

[0032] Mark explanation:

[0033] 1, bottom plate;2, heating ring;3, lower clamping plate;4, upper clamping plate;5, support plate;6, top plate;7, first cylinder;8, arc-shaped groove;9, guide column;10, abutment column;11, arc-shaped abutment plate;12, rubber pad;13, height adjusting plate;14, lifting plate;15, second cylinder;16, first threaded hole;17, first expanding column;18, second expanding column;19, third expanding column;20, first connecting part;21, second connecting part. Specific implementation

[0034] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0035] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0036] In the description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0037] The utility model discloses below will refer to the drawing and combine the embodiment to explain in detail.

[0038] As Figs. 1 to 3 The utility model discloses a PSP steel plastic composite pipe expanding device, including bottom plate 1, clamping subassembly, heating ring 2, expanding subassembly, clamping subassembly, heating ring 2, expanding subassembly are sequentially arranged on bottom plate 1,

[0039] Clamping subassembly includes lower clamping plate 3, upper clamping plate 4, support plate 5, top plate 6, first cylinder 7, a plurality of abutting components, lower clamping plate 3 sets up above bottom plate 1, the bottom of support plate 5 sets up above bottom plate 1, and support plate 5 sets up at one side of lower clamping plate 3, one end of top plate 6 sets up at the top of support plate 5, and top plate 6 sets up above lower clamping plate 3, the mounting end of first cylinder 7 is connected with the bottom center of top plate 6, and the output end of first cylinder 7 is connected with the top center of upper clamping plate 4, a plurality of abutting components are evenly arranged and set up in the bottom of upper clamping plate 4 along arc groove 8, and the abutting component includes abutting column 10, arc abutting plate 11, one end of abutting column 10 is connected with the bottom of upper clamping plate 4, and the other end of abutting column 10 is connected with the convex surface middle part of arc abutting plate 11.

[0040] The middle part of the lower clamping plate 3 is provided with an arc-shaped groove 8, and the arc-shaped groove 8 corresponds to the position of the heating ring 2.

[0041] The upper corners of the lower clamping plate 3 are provided with guide columns 9, and the four corners of the upper clamping plate 4 are provided with guide holes corresponding to the guide columns 9. The upper clamping plate 4 is slidably arranged on the guide columns 9 through the first cylinder 7. The guide columns 9 guide the lifting of the upper clamping plate 4, so that the upper clamping plate 4 lifts along the guide columns 9, and the clamping of the pipe does not deviate.

[0042] The end of the arc-shaped abutting plate 11 away from the abutting column 10 is provided with a rubber pad 12. The rubber pad 12 contacts the pipe to prevent the arc-shaped abutting plate 11 from directly abutting on the pipe and damaging the pipe.

[0043] The arc-shaped groove 8 is used to place the pipe, and the end of the pipe can extend into the heating ring 2. When expanding the pipe, the pipe is placed in the arc-shaped groove 8, and the end of the pipe to be expanded is placed in the heating ring 2. The upper clamping plate 4 is lowered through the first cylinder 7, so that the arc-shaped abutting plate 11 abuts on the pipe, realizing the clamping of the pipe. The clamping assembly can be applied to pipes of different diameters, has higher adaptability, and saves costs.

[0044] The expanding assembly includes two height adjusting plates 13, a lifting plate 14, a second cylinder 15, and an expanding head assembly. The two height adjusting plates 13 are arranged on both sides of one end of the bottom plate 1. A plurality of first threaded holes 16 are evenly distributed on the two height adjusting plates 13.

[0045] The lifting plate 14 is arranged between the two height adjusting plates 13, and the two ends of the lifting plate 14 are provided with second threaded holes corresponding to the first threaded holes 16.

[0046] The lifting plate 14 can be fixed between the two height adjusting plates 13 by bolts, and the height of the lifting plate 14 can be adjusted according to the first threaded holes 16 of different heights or positions, so as to be applicable to pipe materials of different diameters.

[0047] The mounting end of the second cylinder 15 is arranged on one side of the lifting plate 14, and the output end of the second cylinder 15 extends through the lifting plate 14 to the side of the lifting plate 14 close to the clamping assembly and is connected with the expanding head assembly.

[0048] The expanding head assembly includes a first expanding column 17, a second expanding column 18 and a third expanding column 19, and the diameters of the first expanding column 17, the second expanding column 18 and the third expanding column 19 decrease in turn.

[0049] The diameters of the first expanding column 17, the second expanding column 18 and the third expanding column 19 are different, so that the pipe material can be expanded to different diameters, and the applicability is stronger.

[0050] One end of the first expanding column 17 is detachably connected with the output end of the second cylinder 15, the other end of the first expanding column 17 is connected with one end of the second expanding column 18 through a first connecting part 20, and the other end of the second expanding column 18 is connected with the third expanding column 19 through a second connecting part 21.

[0051] The first expanding column 17 is detachably connected with the output end of the second cylinder 15, which can replace expanding head assemblies of different specifications, so as to be applicable to more types of pipe materials.

[0052] The first expanding column 17, the second expanding column 18 and the third expanding column 19 can be extended into the inside of the heating ring 2 by the second cylinder 15.

[0053] The output end of the second cylinder 15 extends out, so that the expanding head assembly extends into the heating ring 2 and expands the pipe material located in the heating ring 2, and the heating ring 2 is used for heating during the expanding process, so as to increase the expanding efficiency.

[0054] The heating ring 2 is internally provided with a plurality of heating pipes, and the heating ring 2, the first cylinder 7 and the second cylinder 15 are electrically connected with the controller.

[0055] In the specific implementation, the pipe is placed on the arc-shaped groove 8, and one end of the pipe which needs to be expanded is placed in the heating ring 2, the first cylinder 7 is started, the output end of the first cylinder 7 is extended downward, so that the upper clamping plate 4 is lowered along the guide column 9 until the rubber pad 12 abuts against the pipe, and the pipe is clamped; the pipe is expanded according to the specification of the pipe, the height of the lifting plate 14 is adjusted according to the diameter of the pipe, the second threaded hole on the lifting plate 14 is aligned with the center of the corresponding first threaded hole 16, and the lifting plate 14 is fixed by using the bolt, the heating ring 2 and the second cylinder 15 are started, the output end of the second cylinder 15 is extended, so that the expanding head assembly is extended into the pipe, under the heating action of the heating ring 2 and the expanding action of the expanding head assembly, the diameter of the pipe is increased, and the pipe is expanded.

[0056] After the expansion is completed, the pipe end is connected with the socket of the connecting pipe, and then the welding is performed by electromagnetic induction heat melting.

[0057] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A device for expanding the diameter of a PSP steel-plastic composite pipe, characterized in that: It comprises a base plate (1), a clamping assembly, a heating ring (2) and a diameter expanding assembly, which are sequentially arranged on the base plate (1); The clamping assembly comprises a lower clamping plate (3), an upper clamping plate (4), a support plate (5), a top plate (6), a first air cylinder (7) and a plurality of abutting assemblies, the lower clamping plate (3) is arranged above the base plate (1), the bottom of the support plate (5) is arranged above the base plate (1), the support plate (5) is arranged on one side of the lower clamping plate (3), one end of the top plate (6) is arranged on the top of the support plate (5), and the top plate (6) is arranged above the lower clamping plate (3), the mounting end of the first air cylinder (7) is connected with the center of the bottom of the top plate (6), the output end of the first air cylinder (7) is connected with the center of the top of the upper clamping plate (4), and the plurality of abutting assemblies are arranged on the bottom of the upper clamping plate (4) along the arc-shaped groove (8) and are evenly arranged, the abutting assembly comprises an abutting column (10) and an arc-shaped abutting plate (11), one end of the abutting column (10) is connected with the bottom of the upper clamping plate (4), and the other end of the abutting column (10) is connected with the middle of the convex surface of the arc-shaped abutting plate (11).

2. The device according to claim 1, characterized in that: The middle of the lower clamping plate (3) is provided with an arc-shaped groove (8) corresponding to the position of the heating ring (2).

3. The device according to claim 1, characterized in that: The upper corners of the lower clamping plate (3) are provided with guide columns (9), the four corners of the upper clamping plate (4) are provided with guide holes corresponding to the guide columns (9), and the upper clamping plate (4) is slidably arranged on the guide columns (9) through the first air cylinder (7).

4. The device according to claim 1, characterized in that: The end of the arc-shaped abutting plate (11) away from the abutting column (10) is provided with a rubber pad (12).

5. The device according to claim 2, characterized in that: The arc-shaped groove (8) is used for placing a pipe, and the end of the pipe can extend into the heating ring (2).

6. The PSP steel-plastic composite pipe expanding device according to claim 1, characterized in that: The diameter expanding assembly comprises two height adjusting plates (13), a lifting plate (14), a second air cylinder (15) and a diameter expanding head assembly, the two height adjusting plates (13) are arranged on both sides of one end of the base plate (1), and a plurality of first threaded holes (16) are evenly arranged on the two height adjusting plates (13); The lifting plate (14) is arranged between the two height adjusting plates (13), and the two ends of the lifting plate (14) are provided with second threaded holes corresponding to the first threaded holes (16); The mounting end of the second air cylinder (15) is arranged on one side of the lifting plate (14), the output end of the second air cylinder (15) extends to the side of the lifting plate (14) close to the clamping assembly and is connected with the diameter expanding head assembly.

7. The device according to claim 6, characterized in that: The diameter expanding head assembly comprises a first diameter expanding column (17), a second diameter expanding column (18) and a third diameter expanding column (19), and the diameters of the first diameter expanding column (17), the second diameter expanding column (18) and the third diameter expanding column (19) decrease in sequence. One end of the first diameter expanding column (17) is detachably connected with the output end of the second air cylinder (15), the other end of the first diameter expanding column (17) is connected with one end of the second diameter expanding column (18) through a first connecting portion (20), and the other end of the second diameter expanding column (18) is connected with the third diameter expanding column (19) through a second connecting portion (21).

8. The PSP steel-plastic composite pipe expanding device according to claim 7, characterized in that: The first diameter expansion column (17), the second diameter expansion column (18) and the third diameter expansion column (19) can extend to the inside of the heating ring (2) through the second cylinder (15).

9. The device according to claim 1, characterized in that: The heating ring (2) is internally provided with a plurality of heating pipes, and the heating ring (2), the first cylinder (7) and the second cylinder (15) are electrically connected with the controller.

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