Flange expander device

Abstract

The utility model belongs to the field of mechanical maintenance and installation, and relates to a flange expander device. Comprising an electric wrench, the output end of the electric wrench is fixedly connected with a threaded rod, the threaded rod is in threaded connection with a mounting plate, the top end of the threaded rod penetrates through the mounting plate, the top end of the threaded rod is detachably connected with a flat chisel head, two limiting pieces are arranged on the mounting plate, and the two limiting pieces are arranged on the two sides of the threaded rod. According to the utility model, the flange gap can be effectively and safely expanded in a limited space.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of mechanical maintenance and installation relates to a flange expander device. BACKGROUND

[0002] In the field of industrial production, replacing flange gaskets is a frequent and extremely challenging maintenance task. The traditional operation method mainly relies on crowbars or knocking chisels to increase the gap between the flanges in order to replace the gaskets. However, when facing narrow operation space or extremely small flange gap, this traditional method is not effective. Due to the limited space, the use of crowbars becomes extremely difficult and is easily broken due to excessive force; and the knocking operation not only has low efficiency, but also may cause injury to the operator, which seriously restricts the progress of the project.

[0003] More seriously, these safety hazards threaten the safety of on-site personnel at all times and bring great challenges to the safety production of enterprises. Therefore, exploring a more safe and efficient flange gasket replacement method suitable for narrow space has become a problem to be solved in industrial production. SUMMARY

[0004] The utility model aims at providing a flange expander device, which solves the problem of effectively and safely expanding the flange gap in limited space.

[0005] The utility model adopts the technical scheme of a flange expander device, which comprises an electric wrench, the output end of the electric wrench is fixedly connected with a threaded rod, the threaded rod is threadedly connected with a mounting plate, the top end of the threaded rod penetrates through the mounting plate, the top end of the threaded rod is detachably connected with a chisel head, two limiting pieces are arranged on the mounting plate, and the two limiting pieces are arranged on the two sides of the threaded rod.

[0006] The utility model has the characteristics that:

[0007] Further, a slot is formed in the bottom end of the chisel head, and the top end of the threaded rod is threadedly connected in the slot.

[0008] Further, two sliding grooves are formed in the surface of the mounting plate, the two sliding grooves are symmetrically arranged on the two sides of the threaded rod, and the limiting pieces are slidingly connected in the sliding grooves.

[0009] Further, the bottom end of the limiting piece penetrates through the sliding groove, and a limiting block is arranged at the bottom end of the limiting piece.

[0010] Further, an installation hole is formed in the surface of the mounting plate, and the bottom end of the limiting piece is inserted in the installation hole.

[0011] Further, the installation holes are uniformly arranged on the surface of the mounting plate.

[0012] Further, the top end of the limiting piece is fixedly connected with a clamping piece.

[0013] Further, the clamping piece is in U-shaped structure or ring-shaped structure.

[0014] The utility model discloses beneficial effect lies in:

[0015] 1, the utility model discloses use electric wrench as power source, install flat chisel head on electric wrench output end, utilize flat chisel head flange clearance expansion, completely discard traditional crowbar and knock mode, avoid the occurrence of the safety accidents such as crowbar fracture and bruise, guarantee the safety of operating personnel.

[0016] 2, the utility model discloses especially suitable for narrow space and the occasion of smaller flange clearance, through electric wrench auxiliary, alleviate the manual labor intensity, improve the operation efficiency.

[0017] 3, the utility model discloses the gradual in-depth of flat chisel head and the efficient drive of electric wrench are combined, make the expansion process of flange clearance more rapid and accurate, significantly shorten the time of replacing gasket. DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, below will be to the embodiment or prior art description needed to use the drawing briefly introduced, obviously, the drawing in the following description only some embodiments of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0019] Figure 1 It is the front view of the utility model embodiment 1;

[0020] Figure 2 It is the side view of the utility model embodiment 1;

[0021] Figure 3 It is the top view of the installation plate of the utility model embodiment 1;

[0022] Figure 4 It is the upper structure schematic diagram of the utility model embodiment 2;

[0023] Figure 5 It is the top view of the installation plate of the utility model embodiment 2;

[0024] Figure 6 It is the working state diagram of the utility model embodiment 2;

[0025] In the drawing, 1, electric wrench, 2, threaded rod, 3, installation plate, 4, flat chisel head, 5, limiting piece, 6, limiting block, 7, clamping piece, 8, sliding slot, 9, mounting hole, 10, slot. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative work belong to the protection scope of the utility model.

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative work belong to the protection scope of the utility model. Figure 1 The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative work belong to the protection scope of the utility model. Figure 5 The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative work belong to the protection scope of the utility model.

[0028] Embodiment 1

[0029] Reference Figure 1 , 2 A flange expander device, comprising an electric wrench 1, the output end of the electric wrench 1 is fixedly connected with a threaded rod 2, the threaded rod 2 is threadedly connected with a mounting plate 3, the top end of the threaded rod 2 penetrates through the mounting plate 3, the top end of the threaded rod 2 is detachably connected with a flat chisel head 4, two limiting pieces 5 are arranged on the mounting plate 3, the two limiting pieces 5 are arranged on the two sides of the threaded rod 2, and the limiting pieces 5 are used for stabilizing the device during expansion and adapting to flanges of different thicknesses.

[0030] The device uses an electric wrench as a power source, an adjustable flat chisel head 4 is arranged on the output end of the electric wrench, and the flat chisel head 4 is used for expanding the gap between flanges.

[0031] A slot 10 is formed in the bottom end of the flat chisel head 4, and the top end of the threaded rod 2 is threadedly connected in the slot 10. The flat chisel head 4 has multiple specifications, the flat chisel head 4 corresponding to the gap between flanges is replaced according to the gap between flanges, the flat chisel head 4 can be replaced to flexibly face different specifications of flange application scenarios, and the design greatly improves the flexibility and applicability of the device.

[0032] Reference Figure 3 Two sliding grooves 8 are formed in the surface of the mounting plate 3, the two sliding grooves 8 are symmetrically arranged on the two sides of the threaded rod 2, the limiting pieces 5 are slidably connected in the sliding grooves 8, and the limiting pieces 5 are used for adapting to the change of the thickness of different flanges. The two limiting pieces 5 are clamped on the side surfaces of two flanges, the thicknesses of different specifications of flanges are different, the device needs to adjust the distance between the two limiting pieces 5 according to the sum of the thicknesses of the two flanges, therefore, the limiting pieces 5 in the sliding grooves 8 can be pulled apart or reduced in distance.

[0033] The bottom end of the limiting piece 5 penetrates through the sliding groove, a limiting block 6 is arranged at the bottom end of the limiting piece 5, the limiting block 6 prevents the limiting piece 5 from accidentally falling off from the sliding groove 8 during sliding, and operation safety is ensured.

[0034] Embodiment 2

[0035] Reference Figure 4 、 5 On the basis of embodiment 1, embodiment 2 optimizes the limiting mechanism, as shown in Figure 4 、 5 The surface of the mounting plate 3 is no longer designed with a sliding groove, but is uniformly distributed with a plurality of mounting holes 9. The bottom of the limiting piece 5 is fixed in the selected mounting hole 9 by inserting, and this design makes the spacing adjustment of the limiting piece 5 more intuitive and stable.

[0036] The surface of the mounting plate 3 is provided with mounting holes 9, and a plurality of mounting holes 9 are uniformly arranged on the surface of the mounting plate 3. The bottom end of the limiting piece 5 is inserted into the mounting hole 9. The limiting piece 5 selects the mounting hole 9 with a large spacing to pull apart the spacing; otherwise, the spacing is reduced. Two limiting pieces 5 are inserted into the mounting hole 9, and the top ends of the two limiting pieces 5 are placed outside the two flanges. The spacing of the two limiting pieces 5 is reduced, the outer side of the limiting piece 5 contacts the outer side of the flange and applies pressure inward, the two limiting pieces 5 clamp the flange inward, keep the mounting plate 3 stable, and the two limiting pieces and the mounting plate 3 form a stable structure, which provides a stable fulcrum for the threaded rod 2.

[0037] The top end of the limiting piece 5 is fixedly connected with a clamping piece 7, the clamping piece 7 is a U-shaped structure or a ring-shaped structure, the side surface of the flange has protruding bolts and nuts, and is designed to be clamped to the edge of the bolts or nuts on the side surface of the flange. The existing structure is used as an additional fixed fulcrum, which further enhances the stability of the whole device. This design is especially suitable for the case where the bolts and nuts on the flange are protruding, which effectively prevents the device from loosening due to vibration during expansion.

[0038] The working process of the flange expander device is as follows: Figure 6 When in use, first, according to the specification of the flange, select the appropriate flat chisel head 4 and install it on the threaded rod 2. Then, according to the thickness of the flange, adjust the distance between the limiting pieces 5 by sliding the limiting pieces 5 (embodiment 1) or selecting the appropriate mounting hole 9 to insert the limiting piece 5 (embodiment 2). Then, place the device between the two flanges to be expanded, and ensure that the limiting pieces 5 and / or the clamping pieces 7 are correctly clamped or clamped on the flange. Start the electric wrench 1, and the threaded rod 2 drives the flat chisel head 4 to rotate and gradually penetrate into the flange gap, and uses its mechanical force to stably and uniformly expand the flange gap until the space required for replacing the gasket is reached. This process does not require manual knocking, greatly reducing the operation difficulty and safety hazard.

[0039] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be understood as the limitation of the essence and range of the utility model, and various modifications made by the ordinary skilled in the art after reading the above embodiments belong to the range protected by the utility model.

Claims

1. A flange spreader device, characterized by, The utility model relates to an electric wrench (1), the output end of electric wrench (1) is fixed with threaded rod (2), threaded rod (2) is threadedly connected with mounting plate (3), the top of threaded rod (2) passes through mounting plate (3), the top of threaded rod (2) is detachably connected with flat chisel head (4), mounting plate (3) is provided with two limiters (5), two limiters (5) are arranged on the both sides of threaded rod (2).

2. The flange spreader device of claim 1, wherein, The bottom of flat chisel head (4) is provided with a slot (10), and the top of threaded rod (2) is threadedly connected in the slot (10).

3. The flange spreader device of claim 1 or 2, wherein, The surface of mounting plate (3) is provided with two sliding grooves (8), and the two sliding grooves (8) are symmetrically arranged on the both sides of threaded rod (2), and the limiter (5) is slidably connected in the sliding groove (8).

4. The flange spreader device of claim 3, wherein, The bottom of limiter (5) passes through the sliding groove, and the bottom of limiter (5) is provided with a limiting block (6).

5. The flange spreader device of claim 1 or 2, wherein, The surface of mounting plate (3) is provided with a mounting hole (9), and the bottom of limiter (5) is inserted in the mounting hole (9).

6. The flange spreader device of claim 5, wherein, Several mounting holes (9) are evenly arranged on the surface of mounting plate (3).

7. The flange spreader apparatus of claim 3, wherein, The top of limiter (5) is fixedly connected with a clamping piece (7).

8. The flange spreader device of claim 7, wherein, The clamping piece (7) is a U-shaped structure or a ring-shaped structure.

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