CN220444861U

CN220444861U - Tube expander

Info

Publication number: CN220444861U
Application number: CN202320643700.7U
Authority: CN
Inventors: 张萍
Original assignee: Changzhou Shenghui Hydraulic Equipment Co ltd
Current assignee: Changzhou Shenghui Hydraulic Equipment Co ltd
Priority date: 2023-03-29
Filing date: 2023-03-29
Publication date: 2024-02-06
Anticipated expiration: 2033-03-29

Abstract

The utility model discloses a tube expander, relates to the technical field of tube expanders, and solves the technical problems that the thickness of part of the existing steel tube is thicker, and the expansion is performed manually, so that the expansion treatment of the inner diameter and the outer diameter of the steel tube is inconvenient due to the strength of the steel tube, and the expansion efficiency of the steel tube is further reduced; the movable sleeve is movably sleeved with a movable sleeve rod, two ends of the movable sleeve rod penetrate through the movable sleeve rod, the bottom end of the movable sleeve rod is fixedly sleeved with a connecting frame, two switching support plates are fixedly arranged at the bottom of the connecting frame, and the interiors of the two switching support plates are fixedly sleeved with a sleeved rotating rod; the utility model can separate the two ends of the expansion plates outwards, so that the ends of the steel pipes can be expanded rapidly and conveniently, and the two expansion plates can be restored to the horizontal state rapidly and conveniently when the hydraulic cylinder is canceled to press down by the movable sleeve rod, thereby being convenient for expanding the ends of the plurality of steel pipes.

Description

Tube expander

Technical Field

The utility model relates to the technical field of tube expander, in particular to a tube expander.

Background

When the boiler is manufactured and maintained, the expansion pipe is used for expanding the inner diameter and the outer diameter of the end part of the steel pipe, so that the contact part of the end part of the steel pipe and the boiler tube plate is tightly expanded, and water leakage and air leakage can be avoided. The flanging type pipe expander can be used for flanging the end part of the steel pipe while expanding the pipe. The tube expander is divided into an expanding tube expander and a flanging tube expander according to different purposes; according to the manual pipe expander provided by Chinese patent grant publication No. CN204747303U, a left pipe expanding column is connected with a left handle through a bolt, a right pipe expanding column is connected with a right handle through a bolt, and the left handle is connected with the right handle through a pin shaft; the upper half parts of the contact surfaces of the left handle and the left expansion pipe column and the contact surfaces of the right handle and the right expansion pipe column are arc surfaces, and the lower half parts are planes intersecting the arc surfaces; however, the thickness of a part of the steel pipe is relatively thick, and the steel pipe is manually expanded, so that the expansion treatment of the inner diameter and the outer diameter of the steel pipe is inconvenient due to the strength of the steel pipe, and the expansion efficiency of the steel pipe is further affected and reduced.

For this purpose, the expander is designed to solve the above-mentioned problems.

Disclosure of Invention

The utility model provides a pipe expander, which solves the technical problems that the expansion treatment of the inner diameter and the outer diameter of a steel pipe is inconvenient due to the strength of the steel pipe by manually expanding the steel pipe due to thicker thickness of part of the steel pipe, and the expansion efficiency of the steel pipe is further reduced.

In order to solve the technical problems, the pipe expander provided by the utility model comprises a movable sleeve, wherein the inside of the movable sleeve is movably sleeved with a movable sleeve rod, two ends of the movable sleeve rod penetrate through the movable sleeve, the bottom end of the movable sleeve rod is fixedly sleeved with a connecting frame, the bottom of the connecting frame is fixedly provided with two connecting support plates, the inside of the two connecting support plates is fixedly sleeved with a sleeved rotating rod, the outside of the two connecting support plates is fixedly sleeved with an expanding plate, the two expanding plates are positioned on the same horizontal plane, two sides of the movable sleeve are fixedly provided with first connecting frames, the outside of the two expanding plates is fixedly provided with second connecting frames, a limiting plate is rotatably sleeved between each first connecting frame and each second connecting frame, two sides of the movable sleeve rod are fixedly provided with spring support plates, the outside of the movable sleeve rod is movably sleeved with a supporting spring, two sides of the movable sleeve rod are fixedly provided with upright posts, the outside of the upright post rods are fixedly provided with fixing supports through connecting screws, the two corresponding upright post supports are respectively, and the two upright post supports are respectively fixedly provided with a hydraulic cylinder.

Preferably, two fixing screws are arranged in the connecting frame, and the bottom end of the movable loop bar is fixedly connected with the connecting frame through the two fixing screws.

Preferably, the first switching frame and the second switching frame are rotatably sleeved with a connecting rotating rod, and the two ends of the limiting switching plate are rotatably sleeved with the corresponding first switching frame and second switching frame through the connecting rotating rod.

Preferably, both sides of the movable sleeve are fixedly provided with fixed sleeves, and the two spring support plates are fixedly connected with the outer wall of the movable sleeve through the fixed sleeves.

Preferably, the inside of two spring extension boards has all fixedly cup jointed extension sleeve, and two stand round bars all cup jointed with the spring extension board activity through extension sleeve.

Preferably, two handles are fixedly arranged outside the movable sleeve, and the two handles are positioned on the same horizontal plane.

Compared with the related art, the pipe expander provided by the utility model has the following beneficial effects:

the utility model provides a pipe expander, which is characterized in that a movable sleeve rod is movably sleeved in a movable sleeve, a connecting frame is fixedly sleeved at the bottom of the movable sleeve rod, two switching support plates are fixedly arranged at the bottom of the connecting frame in a matched manner, so that the two expansion plates are rotatably supported, a limiting adapter plate is rotatably sleeved between the expansion plates and the movable sleeve, the two fixed brackets are further connected through upright column round rods at the two sides of the movable sleeve, so that a hydraulic cylinder is fixedly supported, the movable sleeve rod is pressed down by operating the hydraulic cylinder, and the two expansion plates are limited by the limiting adapter plate, so that the two ends of the expansion plates are separated outwards, and the ends of a steel pipe can be rapidly and conveniently expanded; through all fixed mounting in movable telescopic both sides have fixed sleeve, cup joint two spring extension boards from this, the cooperation cup joints spring extension board and stand round bar activity, makes movable loop bar more steady in the lift in-process from this, and the outside activity of the movable loop bar of the cooperation has cup jointed supporting spring again, makes movable loop bar cancel down when pushing down at the pneumatic cylinder from this, can be fast convenient with two expansion boards resume the horizontality, be convenient for expand a plurality of steel pipe tip and handle.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a partial top view of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of the present utility model A;

fig. 4 is an enlarged schematic view of the structure of the present utility model at B.

Reference numerals in the drawings: 1. a movable sleeve; 2. a first transfer rack; 3. a limit adapter plate; 4. a fixed bracket; 5. a hydraulic cylinder; 6. a handle; 7. a swelling plate; 8. a second transfer frame; 9. a movable loop bar; 10. a connecting frame; 11. a set screw; 12. a transfer support plate; 13. sleeving a rotating rod; 14. a column round bar; 15. a fixed sleeve; 16. a spring support plate; 17. an extension sleeve; 18. a support spring; 19. a connecting screw; 20. and a rotating rod is connected.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The first embodiment is shown in fig. 1-4, the utility model comprises a movable sleeve 1, wherein the inside of the movable sleeve 1 is movably sleeved with a movable sleeve rod 9, two ends of the movable sleeve rod 9 penetrate through the movable sleeve 1, the bottom end of the movable sleeve rod 9 is fixedly sleeved with a connecting frame 10, two switching support plates 12 are fixedly arranged at the bottom of the connecting frame 10, the inside of the two switching support plates 12 is fixedly sleeved with a sleeved rotating rod 13, the outside of the two sleeved rotating rod 13 is rotatably sleeved with an expansion plate 7, the two expansion plates 7 are positioned on the same horizontal plane, two sides of the movable sleeve 1 are fixedly provided with a first switching frame 2, the outside of the two expansion plates 7 is fixedly provided with a second switching frame 8, a limiting plate 3 is rotatably sleeved between each first switching frame 2 and the second switching frame 8, two sides of the movable sleeve rod 9 are fixedly provided with spring support plates 16, the outside of the movable sleeve rod 9 is movably sleeved with a supporting spring 18, two sides of the movable sleeve 1 are fixedly provided with upright column round rods 14, the outside of the two upright column round rods 14 are fixedly provided with fixed support plates 4 through connecting screws 19, the two upright support plates 16 are fixedly provided with corresponding hydraulic support rods 5, and the two upright support rods 5 are fixedly sleeved with the same hydraulic support rods 5, and the hydraulic support rods 5 are fixedly arranged between the two upright support rods 5 are respectively.

In the second embodiment, on the basis of the first embodiment, two fixing screws 11 are provided in the connecting frame 10, and the bottom end of the movable loop bar 9 is fixedly connected with the connecting frame 10 through the two fixing screws 11, so that the connecting frame 10 can be fixed at the bottom end of the movable loop bar 9.

In the third embodiment, on the basis of the first embodiment, the inside of each first adapter frame 2 and each second adapter frame 8 are rotatably sleeved with a connecting rotating rod 20, and two ends of each limiting adapter plate 3 are rotatably sleeved with the corresponding first adapter frame 2 and second adapter frame 8 through the connecting rotating rod 20, so that the connecting limiting adapter plates 3 can rotate.

In the fourth embodiment, on the basis of the first embodiment, the two sides of the movable sleeve 1 are fixedly provided with the fixed sleeve 15, and the two spring support plates 16 are fixedly connected with the outer wall of the movable sleeve 1 through the fixed sleeve 15, so that the spring support plates 16 are fixed outside the movable sleeve 1.

On the basis of the fifth embodiment, the inside of the two spring support plates 16 is fixedly sleeved with the extension sleeve 17, and the two upright column round rods 14 are movably sleeved with the spring support plates 16 through the extension sleeve 17, so that the spring support plates 16 can be movably sleeved with the upright column round rods 14, and the movable sleeve rod 9 is more stable in the lifting process.

In the sixth embodiment, on the basis of the first embodiment, two handles 6 are fixedly installed on the outer portion of the movable sleeve 1, and the two handles 6 are located on the same horizontal plane, so that the movable sleeve 1 can be conveniently held and grabbed by hand.

Working principle: firstly, a movable sleeve rod 9 is movably sleeved in the movable sleeve 1, a connecting frame 10 is fixedly sleeved at the bottom of the movable sleeve rod 9, two switching support plates 12 are fixedly installed at the bottom of the connecting frame 10 in a matched mode, further, two expansion plates 7 are rotatably supported, a limiting adapter plate 3 is rotatably sleeved between the expansion plates 7 and the movable sleeve 1 in a matched mode, two fixing supports 4 are further connected through upright column round rods 14 at two sides of the movable sleeve 1, therefore, a hydraulic cylinder 5 is fixedly supported, the movable sleeve rod 9 is pressed down through operating the hydraulic cylinder 5, two expansion plates 7 are outwards separated through the limitation of the limiting adapter plate 3, and further, the ends of a steel pipe can be rapidly and conveniently expanded; through all fixed mounting has fixed sleeve 15 in the both sides of movable sleeve 1, cup joint two spring extension boards 16 from this, the cooperation cup joints spring extension board 16 and stand round bar 14 activity, make movable loop bar 9 more steady in the lift process from this, the support spring 18 has been cup jointed in the outside activity of movable loop bar 9 again to the cooperation, when making movable loop bar 9 cancel the pushing down at pneumatic cylinder 5 from this, can be fast convenient with two expansion boards 7 resume the horizontality, be convenient for expand a plurality of steel pipe ends and handle.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The pipe expander comprises a movable sleeve (1), and is characterized in that: the inside of movable sleeve (1) has all movably sleeved movable sleeve pole (9), the both ends of movable sleeve pole (9) have all run through movable sleeve (1), and the bottom fixed joint of movable sleeve pole (9) has linked up frame (10), the bottom fixed mounting of linking frame (10) has two switching extension boards (12), two the inside of switching extension boards (12) has all fixedly sleeved cup jointed bull stick (13), two the outside of cup jointing bull stick (13) has all rotated and has cup jointed expanded board (7), two expanded board (7) are located same horizontal plane, the both sides of movable sleeve (1) all fixed mounting has first switching frame (2), two the outside of expanded board (7) all fixed mounting has second switching frame (8), every between first switching frame (2) and second switching frame (8) all rotate cup joint limiting plate (3), the both sides of movable sleeve pole (9) all fixed mounting has spring extension board (16), the outside of movable sleeve pole (9) has rotated the outside of cup jointing bull stick (18), two movable sleeve poles (14) have both sides to connect through two round stand (14) fixed mounting round stand (14), the two spring support plates (16) are movably sleeved with corresponding upright column round rods (14), a hydraulic cylinder (5) is fixedly arranged between the two fixed supports (4), and the hydraulic support rods in the hydraulic cylinder (5) and the movable sleeve rods (9) are located on the same vertical plane.

2. Tube expander according to claim 1, characterized in that the inside of the engagement frame (10) is provided with two fixing screws (11), the bottom end of the movable sleeve rod (9) is fixedly connected with the engagement frame (10) through the two fixing screws (11).

3. The pipe expander according to claim 1, wherein the inside of each first switching frame (2) and each second switching frame (8) is rotatably sleeved with a connecting rotating rod (20), and two ends of each limiting switching plate (3) are rotatably sleeved with the corresponding first switching frame (2) and second switching frame (8) through the connecting rotating rod (20).

4. Tube expander according to claim 1, characterized in that both sides of the movable sleeve (1) are fixedly provided with a fixed sleeve (15), and both spring support plates (16) are fixedly connected with the outer wall of the movable sleeve (1) through the fixed sleeve (15).

5. Tube expander according to claim 1, characterized in that the inside of both spring support plates (16) is fixedly sleeved with an extension sleeve (17), and both column round bars (14) are movably sleeved with the spring support plates (16) through the extension sleeve (17).

6. Tube expander according to claim 1, characterized in that the outside of the movable sleeve (1) is fixedly fitted with two handles (6), both handles (6) being located at the same level.