Pipe expander for PE pipeline

Abstract

The utility model relates to the technical field of pipe expanders, and discloses a PE pipeline pipe expander which comprises a fixed installation block, a hydraulic rod is arranged on one side of the fixed installation block, the other side of the fixed installation block is fixedly connected with a fixed connection guide rail, the output end of the hydraulic rod is fixedly connected with a connecting column, and the output end of the connecting column is fixedly connected with a connecting rod. A pipe expanding mechanism is fixedly connected to the outer side of the surface of the fixed connecting guide rail, a connecting extrusion block is fixedly connected to the outer side of the surface of the connecting column, a connecting bottom plate is fixedly connected to the bottom of a fixed mounting block, and universal wheels are fixedly connected to the bottom end of the connecting bottom plate. A connecting column and a connecting extrusion block are pushed through an arranged hydraulic rod, so that the connecting extrusion block can be in pushing fit with the pipe expanding mechanism, and when a pipeline is arranged on the outer side of the surface of the pipe expanding mechanism in a sleeving manner, internal parts of the pipe expanding mechanism can expand outwards to extrude the inner wall of the pipeline; therefore, the pipe can be expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe expanders, and more specifically to a pipe expander for a PE pipeline. Background Art

[0002] PE is polyethylene. The application range of general PE pipe water supply pipeline is below 40℃, and it cannot be used for hot water delivery pipeline. PE pipe is a highly crystalline, non-polar thermoplastic resin. The appearance of original HDPE is milky white, and it is translucent to a certain extent in thin cross-section. Polyethylene (PE) pipe is widely used in building water supply, building drainage, buried drainage pipes, building heating, gas transmission and distribution, gas pipelines, electrical and telecommunications protective casings, industrial pipes, agricultural pipes, etc. due to its unique advantages. PE pipes are widely used in life. During the use of PE pipes, it is often necessary to expand the pipe mouth of the PE pipe so that the PE pipes can be connected together, which requires a pipe expander.

[0003] After searching, a pipe expander for PE pipes disclosed in publication number CN211363468U includes a positioning outer cylinder, a fixed cylinder, a fixed bearing, a rotating column, a rotating handle, a positioning inner column, an extrusion block, a positioning block, a curved top rod and a curved extrusion plate, the top of the positioning outer cylinder is embedded and welded with a fixed cylinder, the bottom and top of the inner wall of the fixed cylinder are both embedded and welded with fixed bearings, the middle of the fixed bearings are penetrated and welded by the rotating column, two rotating handles are welded on the top of the rotating column, the bottom of the fixed cylinder is embedded and welded on the top of the positioning inner column, and the rotating column is movably embedded in the interior of the positioning inner column, four extrusion blocks are welded on the bottom of the rotating column, the surfaces of the extrusion blocks are welded with positioning blocks, four curved top rods are movably embedded in the interior of the positioning inner column, and one end of the curved top rod is welded with a curved extrusion plate.

[0004] The above-mentioned technical solution has certain beneficial effects, but in actual use, since the PE pipe itself has a certain strength, it is difficult to manually rotate the rotating handle to drive the rotating column to rotate during pipe expansion, and the effect of expanding the PE pipe is poor. For this reason, we propose a pipe expander for PE pipes. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a pipe expander for PE pipes to solve the problems existing in the above-mentioned background technology.

[0006] The utility model provides the following technical solution: a pipe expander for a PE pipe, comprising a fixed mounting block, a hydraulic rod is provided on one side of the fixed mounting block, a fixed connecting guide rail is fixedly connected to the other side of the fixed mounting block, a connecting column is fixedly connected to the output end of the hydraulic rod, a pipe expanding mechanism is fixedly connected to the outer surface of the fixed connecting guide rail, and a connecting extrusion block is fixedly connected to the outer surface of the connecting column;

[0007] Furthermore, the bottom of the fixed mounting block is fixedly connected to a connecting base plate, the bottom end of the connecting base plate is fixedly connected to a universal wheel, and the top end of the connecting base plate is fixedly connected to a connecting push-pull rod.

[0008] Furthermore, the pipe expansion mechanism includes a fixed limit block, the inner side of the fixed limit block is movably connected to a movable mounting block, the outer side of the surface of the movable mounting block is symmetrically provided with connecting guide rods, the surface end of the fixed limit block is provided with a fixed limit guide groove, and the end of the movable mounting block away from the fixed connecting guide rail is fixedly connected to a connecting support block.

[0009] Furthermore, a fixed guide groove is provided on the surface of the fixed connecting guide rail, and the inner side of the fixed guide groove is in contact with the outer side of the surface of the connecting extrusion block.

[0010] Furthermore, the surface end of the connecting extrusion block and the bottom end of the movable mounting block are in contact with each other, and the inner side of the fixed limiting guide groove and the outer side of the surface of the connecting guide rod are in contact with each other.

[0011] Furthermore, the other end of the top of the connecting bottom plate is fixedly connected with a fixed bracket.

[0012] Furthermore, a fixed support plate is provided at the top of the connecting bottom plate near the hydraulic rod, and the top of the fixed support plate is in contact with the outer side of one end of the hydraulic rod away from the fixed mounting block.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model pushes the connecting column and the connecting extrusion block through the provided hydraulic rod, so that the connecting extrusion block can push and cooperate with the pipe expansion mechanism, so that when the pipe is sleeved on the outer surface of the pipe expansion mechanism, the internal components of the pipe expansion mechanism can expand outward and squeeze the inner wall of the pipe, thereby expanding the pipe.

[0015] 2. The utility model can quickly move the entire device through the connecting bottom plate, universal wheels and connecting push-pull rods, and can quickly and conveniently move the device to the desired position, thereby improving the practicality of the device and facilitating carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 This is a schematic diagram of the connecting column structure of the utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the connecting extrusion block of the utility model.

[0019] Figure 4 It is a schematic diagram of the structure of the pipe expansion mechanism of the utility model.

[0020] The accompanying drawings are marked as follows: 1. fixed mounting block; 2. hydraulic rod; 3. fixed connecting guide rail; 4. connecting column; 5. pipe expansion mechanism; 6. connecting extrusion block; 7. connecting base plate; 8. universal wheel; 9. connecting push-pull rod; 10. fixed limit block; 11. fixed limit guide groove; 12. movable mounting block; 13. connecting guide rod; 14. fixed guide groove; 15. fixed support block; 16. fixed support plate; 17. connecting support block. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0022] Reference Figure 1-4 The utility model provides a pipe expander for PE pipes, comprising a fixed mounting block 1, a hydraulic rod 2 is provided on one side of the fixed mounting block 1, a fixed connecting guide rail 3 is fixedly connected to the other side of the fixed mounting block 1, a connecting column 4 is fixedly connected to the output end of the hydraulic rod 2, a pipe expanding mechanism 5 is fixedly connected to the outer surface of the fixed connecting guide rail 3, and a connecting extrusion block 6 is fixedly connected to the outer surface of the connecting column 4;

[0023] Among them, the bottom of the fixed installation block 1 is fixedly connected to a connecting base plate 7, the bottom end of the connecting base plate 7 is fixedly connected to a universal wheel 8, and the top end of the connecting base plate 7 is fixedly connected to a connecting push-pull rod 9.

[0024] Among them, the pipe expansion mechanism 5 includes a fixed limit block 10, and a movable mounting block 12 is movably connected to the inner side of the fixed limit block 10, and a connecting guide rod 13 is symmetrically arranged on the outer side of the surface of the movable mounting block 12. A fixed limit guide groove 11 is opened on the surface end of the fixed limit block 10, and a connecting support block 17 is fixedly connected to the end of the movable mounting block 12 away from the fixed connecting guide rail 3, so that when the hydraulic rod 2 pushes the connecting column 4 and the connecting extrusion block 6, the connecting extrusion block 6 can squeeze and push the end of the movable mounting block 12 away from the connecting support block 17, so that the movable mounting block 12 can move in the direction of the connecting support block 17. At the same time, the movable mounting block 12 drives the connecting guide rod 13 to move on the inner side of the fixed limit guide groove 11, and the connecting support block 17 is opened to the outside, so that the PE pipe can be expanded.

[0025] Among them, a fixed guide groove 14 is opened on the surface of the fixed connecting guide rail 3, and the inner side of the fixed guide groove 14 is in contact with the outer side of the surface of the connecting extrusion block 6, so that when the connecting column 4 drives the connecting extrusion block 6 to move, the connecting extrusion block 6 can move along the inner side of the fixed guide groove 14, which is easy to operate.

[0026] Among them, the surface end of the connecting extrusion block 6 and the bottom end of the movable mounting block 12 are fitted with each other, and the inner side of the fixed limiting guide groove 11 and the outer side of the surface of the connecting guide rod 13 are fitted with each other, so that when the connecting extrusion block 6 moves, it can be squeezed with the movable mounting block 12, so that the movable mounting block 12 can move outward to perform an expansion operation, and when the movable mounting block 12 moves, the connecting guide rod 13 can be stably moved on the inner side of the fixed limiting guide groove 11, which is easy to operate.

[0027] Among them, the other end of the top of the connecting bottom plate 7 is fixedly connected with a fixed support block 15, so that the fixed support block 15 can lift the pipeline, so that the pipeline can stably receive the pipe expansion process.

[0028] Among them, a fixed support plate 16 is provided at the top of the connecting base plate 7 near the hydraulic rod 2, and the top of the fixed support plate 16 is in contact with the outer side of one end of the hydraulic rod 2 away from the fixed mounting block 1, so that the fixed support plate 16 can lift one end of the hydraulic rod 2 so that the hydraulic rod 2 can be used stably.

[0029] The working principle of the utility model is as follows: during use, the device is first moved to the side of the pipeline under the action of the universal wheel 8, and then the pipeline is placed on the inner side of the top end of the fixed support block 15, and one end of the pipeline can be sleeved on the outer side of the surface of the connecting support block 17, and then the hydraulic rod 2 is started, and the connecting column 4 and the connecting extrusion block 6 are pushed by the hydraulic rod 2. The connecting extrusion block 6 can squeeze and push the end of the movable mounting block 12 away from the connecting support block 17, so that the movable mounting block 12 can move in the direction of the connecting support block 17. At the same time, the movable mounting block 12 drives the connecting guide rod 13 to move on the inner side of the fixed limiting guide groove 11, and the connecting support block 17 is opened to the outside, so that the PE pipeline can be expanded. The overall structure is simple and easy to use.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0031] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A pipe expander for a PE pipe, comprising a fixed mounting block (1), characterized in that: A hydraulic rod (2) is provided on one side of the fixed installation block (1), a fixed connection guide rail (3) is fixedly connected to the other side of the fixed installation block (1), an output end of the hydraulic rod (2) is fixedly connected to a connection column (4), a pipe expansion mechanism (5) is fixedly connected to the outer surface of the fixed connection guide rail (3), and a connection extrusion block (6) is fixedly connected to the outer surface of the connection column (4).

2. A pipe expander for PE pipes according to claim 1, characterized in that: The bottom of the fixed installation block (1) is fixedly connected to a connecting base plate (7), the bottom end of the connecting base plate (7) is fixedly connected to a universal wheel (8), and the top end of the connecting base plate (7) is fixedly connected to a connecting push-pull rod (9).

3. A pipe expander for PE pipe according to claim 1, characterized in that: The pipe expansion mechanism (5) comprises a fixed limit block (10), the inner side of the fixed limit block (10) is movably connected to a movable mounting block (12), the outer side of the surface of the movable mounting block (12) is symmetrically provided with a connecting guide rod (13), the surface end of the fixed limit block (10) is provided with a fixed limit guide groove (11), and the end of the movable mounting block (12) away from the fixed connecting guide rail (3) is fixedly connected to a connecting support block (17).

4. A pipe expander for PE pipe according to claim 1, characterized in that: A fixed guide groove (14) is provided on the surface of the fixed connecting guide rail (3), and the inner side of the fixed guide groove (14) is in contact with the outer side of the surface of the connecting extrusion block (6).

5. A pipe expander for PE pipe according to claim 3, characterized in that: The surface end of the connecting extrusion block (6) and the bottom end of the movable mounting block (12) fit together, and the inner side of the fixed limiting guide groove (11) and the outer side of the surface of the connecting guide rod (13) fit together.

6. A pipe expander for PE pipe according to claim 2, characterized in that: The other end of the top of the connecting bottom plate (7) is fixedly connected to a fixed support block (15).

7. A pipe expander for PE pipes according to claim 2, characterized in that: A fixed support plate (16) is provided at the top of the connecting bottom plate (7) near the hydraulic rod (2), and the top of the fixed support plate (16) is in contact with the outer side of one end of the hydraulic rod (2) away from the fixed mounting block (1).

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