Large-diameter flange spreader

Abstract

The utility model relates to the technical field of flange distraction devices, in particular to a large-diameter flange distraction device which comprises a main distraction mechanism and an auxiliary distraction mechanism, the main distraction mechanism comprises two sets of first supporting plates, and hydraulic cylinders are installed on the outer sides of the first supporting plates. The hydraulic cylinders penetrate through the first supporting plates through hydraulic rods and are connected with pressing discs, first bolts are connected to the outer sides of the first supporting plates in a threaded mode, first nuts are connected to the outer sides of the first bolts in a threaded mode, limiting assemblies are installed on the outer sides of the two first supporting plates, and the limiting assemblies are connected with auxiliary opening mechanisms in an inserted mode. Compared with the prior art, the large-diameter flange opening device is reasonable in structural design and high in practicability, large-diameter flanges of different sizes can be conveniently opened, practicability is effectively improved, and the working efficiency and safety of large-diameter flange opening operation are conveniently and effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange spreader technical field especially relates to a big diameter flange spreader. BACKGROUND

[0002] Flange is the part of mutual connection between the shaft and the shaft, is used for the connection between pipe end etc.

[0003] And the prior art in taking down the connecting bolt on two flanges, use crowbar to insert the gap between two flanges to pry open two flanges, because the pipeline connected with the flange is small in deformation, when using crowbar to pry open two flanges, its stress point is small, easy to slip, there is a security hidden danger, and some big diameter flange spreader of prior art cannot be adjusted, leading to unable to spread open the big diameter flange of different sizes, for this, we provide a big diameter flange spreader to solve this problem. SUMMARY

[0004] The utility model discloses a big diameter flange spreader to solve the problem in the prior art.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] Design a kind of big diameter flange spreader, including main spreader mechanism and auxiliary spreader mechanism, the main spreader mechanism includes two groups of first support plate, the outer side of first support plate is equipped with hydraulic cylinder, the hydraulic cylinder is all through the first support plate and is connected with pressure disc by hydraulic rod, the outer side of first support plate is all screwed with first bolt, the outer side of first bolt is screwed with first nut, the outer side of two groups of first support plate is equipped with limiting component, the limiting component is inserted between auxiliary spreader mechanism, the limiting component is connected with first adjusting assembly.

[0007] Further, the limiting component includes first fixed rod installed on both sides of one first support plate and second fixed rod installed on both sides of another first support plate, one side of the first fixed rod and the second fixed rod is connected with limiting post, the outer side of the limiting post is all screwed with limiting nut.

[0008] Further, one side of the first fixed rod and the second fixed rod is connected with first reinforcing rib, and both sides of each first support plate are connected with the first reinforcing rib.

[0009] Further, the first adjusting assembly comprises first threaded columns rotatably connected with lower ends of the first fixing rods, first supporting barrels screwed with lower ends of the first threaded columns, and second fixing rods fixedly inserted between the first supporting barrels.

[0010] Further, the auxiliary supporting opening mechanism comprises two groups of second supporting plates, third fixing rods connected with two sides of the second supporting plates, limiting holes provided on outer sides of the third fixing rods and inserted with limiting columns, second bolts inserted with outer sides of the second supporting plates, second nuts screwed with outer sides of the second bolts, pressing sleeves corresponding to positions of the pressing plates and mounted with outer sides of the second supporting plates, and second adjusting assemblies arranged between the third fixing rods.

[0011] Further, the second adjusting assembly comprises second threaded columns rotatably connected with lower ends of two third fixing rods, second supporting barrels mounted with upper ends of the two third fixing rods, and inner cavities of the second supporting barrels screwed with the second threaded columns.

[0012] Further, second reinforcing ribs are mounted with outer sides of the third fixing rods, and two sides of each second supporting plate are connected with one end of the second reinforcing rib.

[0013] The large-diameter flange supporting opening device has the advantages that:

[0014] 1. The first adjusting assembly is inserted and fixed with the main supporting opening mechanism through the ground nails, so that the supporting effect is improved, the height position between the two first supporting plates can be adjusted, the large-diameter flange with different sizes can be conveniently supported and opened, and the practicability is improved.

[0015] 2. The hydraulic cylinder drives the pressing plate to move towards the position of the pressing sleeve through the hydraulic rod until the pressing plate is inserted into the inner cavity of the pressing sleeve and is attached to the second supporting plate, then the second supporting plate is pushed to make the second supporting plate with the flange plate screwed therewith move a small distance away from the main supporting opening mechanism, so that the two flange plates have a gap, the flange gasket can be conveniently disassembled and replaced, and the working efficiency and safety are improved.

[0016] 3. The limiting assembly in the main supporting opening mechanism is inserted with the limiting hole in the auxiliary supporting opening mechanism, so that when the hydraulic cylinder drives the pressing plate to push the second supporting plate through the hydraulic rod, the second supporting plate is stably limited and moved outside the limiting column through the limiting hole outside the third fixing rod, and the stability of the flange supporting opening operation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1The whole three-dimensional structure schematic diagram provided by the utility model;

[0018] Figure 2 The whole three-dimensional structure schematic diagram provided by the utility model is split;

[0019] Figure 3 The whole three-dimensional structure schematic diagram provided by the utility model is split; Figure 2 The A part device amplification structure schematic diagram in the middle;

[0020] Figure 4 The whole three-dimensional structure schematic diagram provided by the utility model is split;

[0021] Figure 5 The whole three-dimensional structure schematic diagram provided by the utility model is split; Figure 4 The B part device amplification structure schematic diagram in the middle;

[0022] Figure 6 The whole three-dimensional structure schematic diagram provided by the utility model is split;

[0023] Figure 7 The whole three-dimensional structure schematic diagram provided by the utility model is split.

[0024] In the drawing: main support opening mechanism 1, first support cylinder 11, first threaded column 12, first fixed rod 13, second fixed rod 14, first support plate 15, hydraulic cylinder 16, pressing disc 17, first bolt 18, first nut 19, limiting column 110, limiting nut 111, bottom plate 112, ground nail 113, first reinforcing rib 114, auxiliary support opening mechanism 2, second support cylinder 21, second threaded column 22, third fixed rod 23, limiting hole 24, second support plate 25, second reinforcing rib 26, pressing sleeve 27, second bolt 28, second nut 29. Specific implementation

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0026] Refer to Figures 1-7The utility model provides a large diameter flange spreader, including main spreader 1 and auxiliary spreader 2, main spreader 1 includes two groups of first support plate 15, and the outside of first support plate 15 is equipped with hydraulic cylinder 16, and hydraulic cylinder 16 is connected with pressure plate 17 through hydraulic rod and passes through first support plate 15, and the outside of first support plate 15 is screwed with first bolt 18, and the outside of first bolt 18 is screwed with first nut 19, and the outside of two groups of first support plate 15 is equipped with limiting assembly, and limiting assembly includes first fixed rod 13 installed on both sides of one first support plate 15 and second fixed rod 14 installed on both sides of another first support plate 15, and one side of first fixed rod 13 and second fixed rod 14 is connected with limiting column 110, and the outside of limiting column 110 is screwed with limiting nut 111.

[0027] Limiting assembly is connected with first adjusting assembly, and first adjusting assembly includes first threaded column 12 rotationally connected with the lower end of first fixed rod 13, and the lower end of first threaded column 12 is screwed with first support cylinder 11, and first support cylinder 11 is fixedly inserted between second fixed rod 14, and the lower end of first support cylinder 11 is equipped with bottom plate 112, and the upper end of bottom plate 112 is inserted with ground nail 113.

[0028] Place bottom plate 112 on the ground, and pass through bottom plate 112 and nail into the ground through ground nail 113, which is convenient for effectively inserting and fixing main spreader 1, improves its support effect, then insert two first threaded columns 12 into the inner cavity of two first support cylinders 11 and screw, then one end of first threaded column 12 gradually moves towards the depth of the inner cavity of first support cylinder 11, so that first threaded column 12 drives first fixed rod 13 and a group of first support plate 15, hydraulic cylinder 16 to move downward synchronously, so that first support plate 15 and one flange plate on the pipeline are attached, and the other group of first support plate 15 is located on the outside of the flange plate and attached, then screw first nut 19 after passing through the through hole on one side of the flange through first bolt 18 on the outside of two first support plates 15, which is convenient for effectively installing main spreader 1, facilitating the use of flange plates and pipelines of different sizes, effectively improving practicality, then insert auxiliary spreader 2 with limiting column 110, which is convenient for effectively limiting auxiliary spreader 2 and facilitating subsequent stable flange plate spreading work.

[0029] One side of first fixed rod 13 and second fixed rod 14 is connected with first reinforcing rib 114, and the two sides of each first support plate 15 are connected with first reinforcing rib 114, and the designed first reinforcing rib 114 effectively improves the connection firmness between first fixed rod 13, second fixed rod 14 and first support plate 15, increases the strength and effectively improves the use stability.

[0030] The limiting assembly is inserted between the auxiliary support opening mechanism 2, the auxiliary support opening mechanism 2 comprises two groups of second support plates 25, the two sides of the second support plate 25 are connected with the third fixed rod 23, the outer side of the third fixed rod 23 is provided with the limiting hole 24 which is inserted with the limiting column 110, the outer side of the second support plate 25 is inserted with the second bolt 28, the outer side of the second bolt 28 is screwed with the second nut 29, the outer side of the second support plate 25 is installed with the pressing sleeve 27 which corresponds to the position of the pressing disc 17, the second adjusting assembly is arranged between the third fixed rods 23, the second adjusting assembly comprises the second threaded column 22 which is rotatably connected with the lower end of the two third fixed rods 23, the upper end of the two third fixed rods 23 is installed with the second support cylinder 21, the inner cavity of the second support cylinder 21 is screwed with the second threaded column 22.

[0031] By moving the group of second support plates 25 and other components in the lower part of the auxiliary support opening mechanism 2 to the lower part of the other flange plate of the pipeline connection, and at this time, the second support plate 25 corresponds to the position of the other flange, by screwing the second threaded column 22 into the inner cavity of the second support cylinder 21, then the second threaded column 22 drives the group of third fixed rods 23 and the second support plate 25 to move downward, and until close to the other flange plate, then the limiting hole 24 on the outer side of the third fixed rod 23 is inserted with the limiting column 110, the auxiliary support opening mechanism 2 is effectively limited and supported, then the limiting nut 111 is screwed, and the limiting nut 111 is spaced apart from the second support plate 25 by a distance, then the second bolt 28 on the outer side of the two second support plates 25 is screwed tightly through the through hole on the outer side of the flange, so as to effectively install the auxiliary support opening mechanism 2, when the flange plate is opened, the hydraulic equipment is used to supply oil to the two hydraulic cylinders 16, and the controller is used to start the hydraulic cylinder 16, and then the hydraulic cylinder 16 drives the pressing disc 17 to move towards the position of the pressing sleeve 27 through the hydraulic rod, until the pressing disc 17 is inserted into the inner cavity of the pressing sleeve 27 and is attached to the second support plate 25, then the second support plate 25 is pushed, so that the second support plate 25 drives the flange plate which is fixed with it to move a small distance away from the main support opening mechanism 1, so that the two flange plates have a gap, which is convenient for disassembling and replacing the flange gasket, and effectively improves the work efficiency and safety.

[0032] The outer side of the third fixed rod 23 is installed with the second reinforcing rib 26, the two sides of each second support plate 25 are connected with one end of the second reinforcing rib 26, the second reinforcing rib 26 is designed, which effectively improves the connection firmness between the third fixed rod 23 and the second support plate 25, and further improves the use stability.

[0033] Working principle: the utility model discloses when using, the bottom plate 112 is placed on the ground, and through the ground nail 113 is nailed into the ground through the bottom plate 112, it is convenient to effectively insert and fix main support opening mechanism 1, improve its support effect, then two first threaded columns 12 are inserted into the inner chamber of two first support cylinders 11 and are screwed and rotated, then the one end of first threaded column 12 gradually moves towards the inner chamber depth of first support cylinder 11, so that first threaded column 12 drives first fixed rod 13 and a group of first support plates 15, hydraulic cylinder 16 synchronous downward, so that first support plate 15 and the flange on the pipeline are attached, and another group of first support plates 15 has been located the outside of this flange, and is attached, then after first bolt 18 outside two first support plates 15 passes through the through hole of one flange outside, first nut 19 is screwed, then a group of second support plates 25 etc. parts in auxiliary support opening mechanism 2 below are moved to below another flange plate of pipeline connection, and at this time, this second support plate 25 corresponds with another flange position, by screwing and inserting second threaded column 22 into the inner chamber of second support cylinder 21, then second threaded column 22 drives a group of third fixed rods 23 and second support plate 25 downward, and is close to another flange plate, then through the limiting hole 24 outside third fixed rod 23 and limiting column 110 are inserted and connected, effectively limit and support auxiliary support opening mechanism 2, and then limit nut 111 is screwed, and limit nut 111 and second support plate 25 are spaced apart a distance, then after second bolt 28 outside two second support plates 25 passes through the through hole of this flange outside, second nut 29 is tightened, it is convenient to effectively install auxiliary support opening mechanism 2, when flange plate support opening operation is carried out, utilize external hydraulic equipment to supply oil to two hydraulic cylinders 16, and start hydraulic cylinder 16 through external controller, then hydraulic cylinder 16 moves pressure disc 17 towards the position of pressure sleeve 27 through hydraulic rod, until pressure disc 17 is inserted into the inner chamber of pressure sleeve 27 and is attached with second support plate 25, then push second support plate 25, so that second support plate 25 drives one flange plate fixedly screwed with it to move a small distance away from main support opening mechanism 1, and second support plate 25 moves stably through the limiting hole 24 outside third fixed rod 23 outside limiting column 110, effectively improve the stability of flange support opening operation, and finally make the clearance between two flange plates, facilitate disassembly and replacement flange gasket, effectively improve work efficiency and safety, and it is convenient to support opening operation for different size large diameter flanges, effectively improve practicality.

[0034] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme of the utility model and the utility model concept, equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A large diameter flange spreader comprising a main spreader mechanism (1) and an auxiliary spreader mechanism (2), characterized in that, The main support opening mechanism (1) comprises two groups of first support plates (15), the outer side of the first support plate (15) is provided with a hydraulic cylinder (16), the hydraulic cylinder (16) is penetrated through the first support plate (15) by a hydraulic rod and is connected with a pressure plate (17), the outer side of the first support plate (15) is screwed with a first bolt (18), the outer side of the first bolt (18) is screwed with a first nut (19), the outer side of the first support plate (15) is provided with a limiting assembly, the limiting assembly is inserted between the limiting assembly and the auxiliary support opening mechanism (2), and the limiting assembly is connected with a first adjusting assembly.

2. A large diameter flange spreader according to claim 1, wherein, The limiting assembly comprises a first fixed rod (13) installed on both sides of one of the first support plates (15) and a second fixed rod (14) installed on both sides of the other first support plate (15), one side of the first fixed rod (13) and the second fixed rod (14) is connected with a limiting column (110), and the outer side of the limiting column (110) is screwed with a limiting nut (111).

3. A large diameter flange spreader according to claim 2, wherein, One side of the first fixed rod (13) and the second fixed rod (14) is connected with a first reinforcing rib (114), and the two sides of each first support plate (15) are connected with the first reinforcing rib (114).

4. A large diameter flange spreader according to claim 2, wherein, The first adjusting assembly comprises a first threaded column (12) rotatably connected with the lower end of the first fixed rod (13), the lower end of the first threaded column (12) is screwed with a first support cylinder (11), the first support cylinder (11) is fixedly inserted between the second fixed rod (14), the lower end of the first support cylinder (11) is provided with a bottom plate (112), and the upper end of the bottom plate (112) is inserted with a ground nail (113).

5. A large diameter flange spreader according to claim 2 wherein, The auxiliary support opening mechanism (2) comprises two groups of second support plates (25), the two sides of the second support plate (25) are connected with a third fixed rod (23), the outer side of the third fixed rod (23) is provided with a limiting hole (24) inserted with the limiting column (110), the outer side of the second support plate (25) is inserted with a second bolt (28), the outer side of the second bolt (28) is screwed with a second nut (29), the outer side of the second support plate (25) is provided with a pressure sleeve (27) corresponding to the position of the pressure plate (17), and the second adjusting assembly is arranged between the third fixed rods (23).

6. A large diameter flange spreader according to claim 5, wherein, The second adjusting assembly comprises a second threaded column (22) rotatably connected with the lower end of two third fixed rods (23), and the upper end of the two third fixed rods (23) is provided with a second support cylinder (21) which is screwed with the second threaded column (22) in the inner cavity.

7. A large diameter flange spreader according to claim 6 wherein, The outer side of the third fixed rod (23) is provided with a second reinforcing rib (26), and the two sides of each second support plate (25) are connected with one end of the second reinforcing rib (26).

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