Dimension-adjustable expanding device

Abstract

The utility model relates to the technical field of diameter expanding devices, in particular to a size-adjustable diameter expanding device which comprises a base, a mounting part, a sliding rod, a fixing plate, a diameter expanding part, a mounting seat and a pipe fitting. The base is provided with a clamping mechanism used for clamping a pipe fitting. The fixing plate is connected with the base, the sliding rod is connected with the mounting base and slidably connected with the fixing plate, and the fixing plate is provided with a hydraulic cylinder connected with the mounting base; the mounting part is rotationally connected with the mounting seat, and the mounting seat is provided with a driving motor which is in transmission connection with the mounting part; the multiple expanding parts are slidably connected with the mounting part, the mounting part is provided with an adjusting mechanism used for driving the multiple expanding parts to synchronously move, and the ends, away from the mounting part, of the expanding parts are each provided with a guide slope. The positions of the multiple diameter expanding parts are adjusted through the adjusting mechanism, the diameter expanding size can be adjusted, and the steel frame is flexible and convenient to use.

Description

Technical Field

[0001] This utility model relates to the technical field of diameter expansion devices, specifically a diameter expansion device with adjustable size. Background Technology

[0002] Steel pipes are widely used in daily life and production. They are an economical steel material and play a vital role in oil and gas pipeline transportation. They can be used to transport fluids and powdery solids, exchange heat energy, and manufacture mechanical parts and containers. Pipe expansion involves increasing the diameter of one end of the pipe. Currently, a common expansion method is to use a cylinder to push a corresponding expansion cone into the fixed pipe, thereby expanding the diameter of one end.

[0003] Chinese Patent CN221388545U discloses a pipe expansion device, relating to the field of pipe expansion technology. It includes an L-shaped operating table with an expansion structure. The expansion structure comprises an expansion component and a fixing component. The expansion component includes an expansion assembly and a limiting assembly, while the fixing component includes a shifting assembly and a fixing assembly. The L-shaped operating table has a slide groove with openings on both sides. A scale is provided on one side of the slide groove. The expansion assembly includes a lead screw rotatably connected to the L-shaped operating table. A motor is fixedly connected to one side of the L-shaped operating table. An expansion block and an L-shaped limiting plate are threaded onto the outer surface of the lead screw. A stop block is fixedly connected to the other end of the L-shaped limiting plate. This invention allows for arbitrary adjustment of the positions of the upper and lower clamping plates, thereby changing the expansion length and enabling precise control of the expansion length. It also facilitates alignment between the expansion block and the pipe, preventing misalignment that could damage the pipe and affect the expansion effect.

[0004] However, the above technical solution has the following drawbacks: the above pipe expansion device uses an expansion component to squeeze the inner wall of the pipe to expand the diameter. The size of the expansion component is fixed, the expansion size of the steel pipe cannot be adjusted, and the device is inconvenient to use. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a diameter expansion device with adjustable dimensions.

[0006] The technical solution of this utility model is: an adjustable diameter expansion device, comprising a base, a mounting part, a slide rod, a fixing plate, an expansion part, a mounting seat, and pipe fittings;

[0007] The base is equipped with multiple clamping mechanisms for fixing pipe fittings, which are arranged side by side on the base;

[0008] The fixed plate is connected to the surface of the base, and the slide rod is provided with multiple rods and connected to the mounting base. The slide rod is slidably connected to the fixed plate, and the fixed plate is provided with a hydraulic cylinder. The end of the hydraulic cylinder is connected to the surface of the mounting base.

[0009] The mounting part is rotationally connected with the mounting base, the mounting base is provided with a driving motor, the driving motor is transmissionally connected with the mounting part, and the mounting part is coaxially distributed with the pipe fitting;

[0010] The plurality of expansion sections are circumferentially and evenly distributed on the mounting part, and the mounting part is provided with an adjusting mechanism for driving the plurality of expansion sections to move synchronously.

[0011] Preferably, the surface of the mounting part is provided with a plurality of sliding grooves which are circumferentially and evenly distributed on the mounting part, and the sliding grooves are distributed along the radial direction of the mounting part.

[0012] The sliding grooves correspond to the expansion sections one by one, the plurality of expansion sections are provided with sliding blocks at the ends thereof, and the sliding blocks are slidingly connected with the corresponding sliding grooves.

[0013] Preferably, the adjusting mechanism comprises a connecting rod, a sleeve, a fixed block a, a fixed block b and a mounting shaft.

[0014] The mounting shaft is connected with the mounting part and coaxially distributed with the mounting part, the sleeve is slidingly connected with the mounting shaft and is sleeved outside the mounting shaft, and the mounting part is provided with a cylinder for driving the sleeve to move.

[0015] The fixed block a is provided with a plurality of fixed blocks a which are connected with the plurality of expansion sections respectively, the fixed block b is provided with a plurality of fixed blocks b which are connected with the outer circumferential surface of the sleeve, and the plurality of fixed blocks b correspond to the fixed block a one by one.

[0016] The connecting rod is provided with a plurality of connecting rods, and the two ends of the connecting rod are rotationally connected with the corresponding fixed block a and fixed block b respectively.

[0017] Preferably, the clamping mechanism comprises a fixed frame, a double-threaded rod, a mounting plate and a guide rod.

[0018] The fixed frame is connected with the base, the double-threaded rod is connected with the base and the fixed frame, the guide rod is connected with the base and the fixed frame, the double-threaded rod and the guide rod are distributed side by side, the base is provided with a driving assembly, and the driving assembly is transmissionally connected with the double-threaded rod.

[0019] The mounting plate is provided with two mounting plates, the two mounting plates are each provided with two mounting blocks, one mounting block is slidingly connected with the guide rod, the other mounting block is threadedly connected with the double-threaded rod, and the two mounting plates are symmetrically distributed on the double-threaded rod.

[0020] The surface of the mounting plate is provided with clamping blocks, and the mutually close surfaces of the two clamping blocks are provided with arc-shaped grooves.

[0021] Preferably, the mounting plate is provided with a plurality of bolts, and the bolts are threadedly connected with the corresponding clamping blocks.

[0022] Preferably, the grooves in the clamping blocks are each provided with a rubber pad.

[0023] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0024] 1. In this utility model, the positions of multiple expanding parts can be adjusted by adjusting the adjustment mechanism, so that the expanding size can be adjusted flexibly and conveniently using the steel frame.

[0025] 2. In this utility model, the cylinder drives the sleeve to slide on the mounting shaft. The sleeve moves away from the mounting part, and multiple connecting rods drive multiple expansion parts to move closer to each other. The sleeve gradually moves closer to the mounting part, and the connecting rods drive multiple expansion parts to move away from the mounting shaft simultaneously.

[0026] 3. In this utility model, the drive component drives the double threaded rod to rotate, and the two mounting plates drive the corresponding clamping blocks to move closer to each other to clamp the pipe fittings. The clamping blocks can be removed from the mounting plates for replacement, making the clamping mechanism suitable for pipe fittings of different sizes. Attached Figure Description

[0027] Figure 1 This is a perspective view of an adjustable diameter expansion device proposed in this utility model.

[0028] Figure 2 This is a schematic diagram of the clamping mechanism in one embodiment of the present invention.

[0029] Figure 3 This is a schematic diagram of the structure of an adjustable diameter expansion device proposed in this utility model.

[0030] Figure 4 This is a schematic diagram of the adjustment mechanism in one embodiment of the present invention.

[0031] Reference numerals: 1. Base; 2. Fixing frame; 3. Drive assembly; 4. Double threaded rod; 5. Mounting block; 6. Mounting plate; 7. Bolt; 8. Clamping block; 9. Rubber pad; 10. Guide rod; 11. Hydraulic cylinder; 12. Mounting part; 13. Slide rod; 14. Fixing plate; 15. Drive motor; 16. Expanding diameter part; 17. Connecting rod; 18. Sleeve; 19. Mounting seat; 20. Pipe fitting; 21. Fixing block a; 22. Fixing block b; 23. Mounting shaft; 24. Slider; 25. Slide groove. Detailed Implementation

[0032] Example 1

[0033] like Figures 1-4 As shown, the present invention proposes an adjustable diameter expansion device, which includes a base 1, a mounting part 12, a sliding rod 13, a fixing plate 14, an expansion part 16, a mounting seat 19, and a pipe fitting 20.

[0034] The base 1 is provided with multiple clamping mechanisms for fixing the pipe fitting 20, and the clamping mechanisms are arranged side by side on the base 1;

[0035] The fixed plate 14 is connected to the surface of the base 1. The slide rod 13 is provided with multiple rods and connected to the mounting base 19. The slide rod 13 is slidably connected to the fixed plate 14. The fixed plate 14 is provided with a hydraulic cylinder 11. The end of the hydraulic cylinder 11 is connected to the surface of the mounting base 19.

[0036] The mounting part 12 is rotatably connected to the mounting base 19. The mounting base 19 is equipped with a drive motor 15, which is connected to the mounting part 12. The mounting part 12 and the pipe fitting 20 are coaxially distributed.

[0037] The enlarged diameter section 16 is provided with multiple surfaces of the mounting section 12 that are slidably connected to the mounting base 19. The multiple enlarged diameter sections 16 are evenly distributed around the circumference of the mounting section 12. The mounting section 12 is provided with an adjustment mechanism for driving the multiple enlarged diameter sections 16 to move synchronously. The end of each enlarged diameter section 16 away from the mounting section 12 is provided with a guide slope.

[0038] Furthermore, the surface of the mounting part 12 is provided with a plurality of sliding grooves 25 and is evenly distributed around the circumference of the mounting part 12, and the sliding grooves 25 are all distributed along the radial direction of the mounting part 12;

[0039] The groove 25 corresponds one-to-one with the diameter expansion section 16. Each end of the multiple diameter expansion sections 16 is provided with a slider 24, and the slider 24 is slidably connected to the corresponding groove 25.

[0040] In this invention, multiple clamping mechanisms fix the pipe fitting 20 during use. The drive motor 15 starts and drives the mounting part 12 and the expansion part 16 on it to rotate. The ends of the multiple expansion parts 16 extend into the pipe fitting 20. The hydraulic cylinder 11 drives the mounting seat 19 to gradually approach the end of the pipe fitting 20. The guide slope of the expansion part 16 first squeezes the end of the pipe fitting 20, gradually expanding the inner diameter of the pipe fitting 20 until the expansion part 16 enters the pipe fitting 20. In this invention, the multiple expansion parts 16 can be adjusted in position by the adjustment mechanism, so the expansion size can be adjusted flexibly and conveniently using the steel frame.

[0041] Example 2

[0042] like Figures 3-4 As shown, the adjustable diameter expansion device proposed in this utility model, compared with the first embodiment, the adjustment mechanism in this embodiment includes a connecting rod 17, a sleeve 18, a fixing block a21, a fixing block b22 and a mounting shaft 23;

[0043] The mounting shaft 23 is connected to the mounting part 12 and is coaxially distributed with the mounting part 12. The sleeve 18 is slidably connected to the mounting shaft 23 and sleeved on the outside of the mounting shaft 23. The mounting part 12 is provided with a cylinder to drive the sleeve 18 to move.

[0044] The fixing block a21 is provided with multiple and is respectively connected to multiple expansion sections 16, and the fixing block b22 is provided with multiple and is connected to the outer peripheral surface of the sleeve 18. The multiple fixing blocks b22 correspond one-to-one with the fixing block a21.

[0045] The plurality of connecting rods 17 are provided, and two ends of the connecting rod 17 are rotatably connected with the corresponding fixed block a21 and the fixed block b22 respectively.

[0046] In the embodiment, the sleeve 18 is driven by the cylinder to slide on the mounting shaft 23, when the sleeve 18 is away from the mounting part 12, the plurality of connecting rods 17 drive the plurality of expanding parts 16 to approach each other, when the sleeve 18 gradually approaches the mounting part 12, the connecting rods 17 drive the plurality of expanding parts 16 to synchronously move away from the mounting shaft 23.

[0047] Embodiment three

[0048] As shown in Figures 1-3 The utility model discloses a size adjustable expanding device, compared with embodiment one, the clamping mechanism of this embodiment includes fixed frame 2, double -threaded rod 4, mounting plate 6 and guide rod 10, and the clamping mechanism of this embodiment is improved on the basis of the clamping mechanism of embodiment one.

[0049] The fixed frame 2 is connected with the base 1, the double -threaded rod 4 is connected with the base 1 and the fixed frame 2, the guide rod 10 is connected with the base 1 and the fixed frame 2, the double -threaded rod 4 and the guide rod 10 are distributed side by side, the base 1 is equipped with drive assembly 3, and the drive assembly 3 is transmission connection double -threaded rod 4.

[0050] The mounting plate 6 is equipped with two, and the two mounting plates 6 are all equipped with two mounting blocks 5, one mounting block 5 is slidably connected with the guide rod 10, and the other mounting block 5 is threadedly connected with the double -threaded rod 4, and the two mounting plates 6 are symmetrically distributed on the double -threaded rod 4.

[0051] The surface of the mounting plate 6 is equipped with clamping block 8, and the surface of the two clamping blocks 8 that approach each other is equipped with arc-shaped groove.

[0052] Further, a plurality of bolts 7 are arranged on the mounting plate 6, and the bolts 7 are threadedly connected with the corresponding clamping blocks 8.

[0053] Further, the rubber pads 9 are arranged in the grooves of the clamping blocks 8.

[0054] In the embodiment, the drive assembly 3 drives the double -threaded rod 4 to rotate, the mounting blocks 5 on the two mounting plates 6 are threadedly connected with the double -threaded rod 4, the two mounting plates 6 drive the corresponding clamping blocks 8 to approach each other and clamp on the outer circumferential surface of the pipe 20, the rubber pads 9 are arranged in the grooves of the clamping blocks 8 to prevent the pipe 20 from being damaged, and the clamping blocks 8 can be detached from the mounting plates 6 for replacement, so that the clamping mechanism is suitable for pipes 20 of different sizes.

[0055] The embodiments of the utility model are described in detail in combination with the drawings above, but the utility model is not limited to this, and various changes can be made within the knowledge range possessed by the person skilled in the art without departing from the purpose of the utility model.

Claims

1. A size-adjustable diameter-expanding device, characterized by, The base (1), the mounting part (12), the sliding rod (13), the fixed plate (14), the diameter expansion part (16), the mounting seat (19) and the pipe fitting (20) are included. A plurality of clamping mechanisms for fixing the pipe fitting (20) are arranged on the base (1) in parallel. The fixed plate (14) is connected to the surface of the base (1), the sliding rod (13) is provided with a plurality of mounting seats (19), the sliding rod (13) is slidingly connected to the fixed plate (14), the fixed plate (14) is provided with a hydraulic cylinder (11), and the end of the hydraulic cylinder (11) is connected to the surface of the mounting seat (19). The mounting part (12) is rotatably connected to the mounting seat (19), the mounting seat (19) is provided with a driving motor (15), the driving motor (15) is drivingly connected to the mounting part (12), and the mounting part (12) is coaxially arranged with the pipe fitting (20). The diameter expansion part (16) is provided with a plurality of surfaces slidingly connected to the surface of the mounting part (12) away from the mounting seat (19), the plurality of diameter expansion parts (16) are circumferentially and uniformly arranged on the mounting part (12), and the mounting part (12) is provided with an adjusting mechanism for driving the plurality of diameter expansion parts (16) to move synchronously.

2. A device according to claim 1, wherein, The surface of the mounting part (12) is provided with a plurality of sliding grooves (25) arranged in a circumferential direction, and the sliding grooves (25) are arranged along the radial direction of the mounting part (12). The sliding groove (25) corresponds to the diameter expansion part (16), the end of the plurality of diameter expansion parts (16) is provided with a sliding block (24), and the sliding block (24) is slidingly connected to the corresponding sliding groove (25).

3. A device according to claim 1, wherein, The adjusting mechanism includes a connecting rod (17), a sleeve (18), a fixed block a (21), a fixed block b (22) and a mounting shaft (23). The mounting shaft (23) is connected to the mounting part (12) and coaxially arranged with the mounting part (12), the sleeve (18) is slidingly connected to the mounting shaft (23) and sleeved on the outer side of the mounting shaft (23), and the mounting part (12) is provided with a cylinder for driving the sleeve (18) to move. The fixed block a (21) is provided with a plurality of fixed blocks a (21) connected to the plurality of diameter expansion parts (16), respectively, the fixed block b (22) is provided with a plurality of fixed blocks b (22) connected to the outer circumferential surface of the sleeve (18), and the plurality of fixed blocks b (22) correspond to the fixed block a (21) one by one. The connecting rod (17) is provided with a plurality of connecting rods (17), and the two ends of the connecting rod (17) are rotatably connected to the corresponding fixed block a (21) and fixed block b (22), respectively.

4. The adjustable size reamer of claim 1 wherein, The clamping mechanism includes a fixed frame (2), a double-threaded rod (4), a mounting plate (6) and a guide rod (10). The fixed frame (2) is connected to the base (1), the double-threaded rod (4) is connected to the base (1) and the fixed frame (2), the guide rod (10) is connected to the base (1) and the fixed frame (2), the double-threaded rod (4) and the guide rod (10) are arranged in parallel, and the base (1) is provided with a driving assembly (3) drivingly connected to the double-threaded rod (4). Two installation plates (6) are arranged, and each of the two installation plates (6) is provided with two installation blocks (5), one installation block (5) is slidably connected with a guide rod (10), and the other installation block (5) is threadedly connected with the double-threaded rod (4); the two installation plates (6) are symmetrically distributed on the double-threaded rod (4); The surface of the installation plate (6) is provided with a clamping block (8), and the mutually close surfaces of the two clamping blocks (8) are provided with arc-shaped grooves.

5. A device according to claim 4, wherein, A plurality of bolts (7) are arranged on the installation plate (6), and the bolt (7) is threadedly connected with the corresponding clamping block (8).

6. A device according to claim 4, wherein, The rubber pad (9) is arranged in the groove of the clamping block (8).

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