Flange fixing device

Abstract

The utility model relates to the technical field of ship construction, in particular to a flange fixing device which comprises a fixing plate, a first connecting bolt and a second connecting bolt, and a first positioning assembly and a second positioning assembly which can be close to each other or away from each other are arranged on the fixing plate. The first positioning assembly and the second positioning assembly are provided with a first threaded hole and a second threaded hole respectively. The threaded end of the first connecting bolt sequentially penetrates through one bolt hole of the flange and is in threaded connection with the interior of the first threaded hole. The threaded end of the second connecting bolt sequentially penetrates through the other bolt hole of the flange and is screwed in the second threaded hole, the flange can be connected to the fixing plate by screwing a nut of the first connecting bolt and the second connecting bolt, two-hand operation of an operator is not needed, the labor intensity is reduced, and operation is convenient; moreover, the distance between the first threaded hole and the second threaded hole can be adjusted by moving the first positioning assembly and the second positioning assembly, so that the flange fixing device can be suitable for flanges of different specifications.

Description

Technical Field

[0001] The utility model relates to the technical field of shipbuilding, in particular to a flange fixing device. Background Art

[0002] A large number of pipes are needed in the shipbuilding process, and the ends of the pipes need to be connected to the box body or to achieve a detachable connection between two pipes by welding flanges. When welding the flanges to the ends of the pipes, the flanges need to be fixed to the fixtures to facilitate the operation.

[0003] At present, the commonly used flange fixing device includes a fixing plate, in which a plurality of slide grooves are arranged in a divergent shape from the center of the fixing plate. Each connecting bolt passes through the bolt hole of the flange and each slide groove in turn, and then connects to the locking nut. Tightening the locking nut can connect the flange to the fixing plate. When tightening the locking nut, in order to prevent the bolt from rotating when the locking nut is screwed, the operator needs to hold a wrench in one hand to clamp the nut of the bolt, and hold another wrench in the other hand to rotate the locking nut before tightening the locking nut. A large number of flanges need to be welded during the manufacturing process of a ship. When fixing the flange, the operator needs to operate with both hands, which is inconvenient and labor-intensive, and is not conducive to efficient welding of flanges. Utility Model Content

[0004] The technical problem to be solved by the utility model is that currently, when fixing the flange on the fixing plate, the operator needs to use both hands to simultaneously screw the locking nut and the bolt, which is inconvenient and labor-intensive.

[0005] In order to solve the above technical problems, the purpose of the utility model is to provide a flange fixing device for fixing a flange, wherein the flange has a plurality of bolt holes arranged at intervals, and the flange fixing device comprises:

[0006] A fixing plate, wherein the fixing plate is provided with a first positioning component and a second positioning component which can be moved closer to or farther from each other, the first positioning component is provided with a first threaded hole, and the second positioning component is provided with a second threaded hole;

[0007] A first connecting bolt, wherein a threaded end of the first connecting bolt passes through one of the bolt holes of the flange in sequence and is screwed into the first threaded hole;

[0008] A second connecting bolt, wherein the threaded end of the second connecting bolt passes through another bolt hole of the flange in sequence and is screwed into the second threaded hole.

[0009] As a preferred solution, the fixed plate has a first slide groove and a second slide groove which are arranged in a divergent shape with the same center, the first positioning component is movably disposed in the first slide groove, and the second positioning component is movably disposed in the second slide groove.

[0010] As a preferred solution, the first positioning assembly includes a first positioning bolt and a first positioning nut, the first threaded hole is arranged in the first positioning bolt, and the screw rod of the first positioning bolt passes through the first sliding groove and is threadedly connected to the first positioning nut;

[0011] The second positioning assembly includes a second positioning bolt and a second positioning nut. The second threaded hole is arranged in the second positioning bolt. The screw rod of the second positioning bolt passes through the second sliding groove and is threadedly connected with the second positioning nut.

[0012] As a preferred solution, a first anti-rotation groove is provided at a position of the fixing plate opposite to the first sliding groove, the groove width of the first anti-rotation groove matches the distance between opposite sides of the nut of the first positioning bolt, and the nut of the first positioning bolt is slidably arranged in the first anti-rotation groove;

[0013] A second anti-rotation groove is provided at a position where the fixing plate is opposite to the second sliding groove. The groove width of the second anti-rotation groove matches the opposite side distance of the nut of the second positioning bolt. The nut of the second positioning bolt is slidably arranged in the second anti-rotation groove.

[0014] As a preferred solution, the groove depth of the first anti-rotation groove is greater than the thickness of the nut of the first positioning bolt; the groove depth of the second anti-rotation groove is greater than the thickness of the nut of the second positioning bolt.

[0015] As a preferred solution, the groove width of the first slide groove is smaller than the screw diameter of the first positioning bolt, first grinding planes are provided on both sides of the screw of the first positioning bolt, and the distance between the two first grinding planes matches the groove width of the first slide groove;

[0016] The groove width of the second slide groove is smaller than the screw diameter of the second positioning bolt, and second grinding planes are provided on both sides of the screw of the second positioning bolt. The distance between the two second grinding planes matches the groove width of the second slide groove.

[0017] As a preferred solution, the fixing plate is further provided with a third positioning assembly that can move up and down, the third positioning assembly is provided with a third threaded hole, and the flange fixing device further includes a third connecting bolt, the threaded end of the third connecting bolt sequentially passes through the bolt hole of the flange and is screwed into the third threaded hole;

[0018] The first positioning assembly and the second positioning assembly are arranged on the left and right sides of the third positioning assembly, respectively.

[0019] As a preferred solution, the fixing plate is further provided with a fourth positioning component which can move up and down, and the fourth positioning component and the third positioning component are arranged symmetrically up and down.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The flange fixing device of the utility model comprises a fixing plate, a first connecting bolt and a second connecting bolt. The fixing plate is provided with a first positioning component and a second positioning component which can be close to or far away from each other. The first positioning component is provided with a first threaded hole, and the second positioning component is provided with a second threaded hole. The threaded end of the first connecting bolt passes through one of the bolt holes of the flange in sequence and is screwed in the first threaded hole. The threaded end of the second connecting bolt passes through another bolt hole of the flange in sequence and is screwed in the second threaded hole. The flange can be connected to the fixing plate by screwing the nut of the first connecting bolt and the nut of the second connecting bolt. The operator does not need to work with both hands, which reduces the labor intensity and facilitates the operation. Moreover, by moving the first positioning component and the second positioning component, the spacing between the first threaded hole and the second threaded hole can be adjusted, so that the flange fixing device of the utility model can be suitable for flanges of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 An axonometric view of the first locating bolt and the second locating bolt before being assembled on the fixing plate;

[0023] Figure 2 An axonometric view of the first retaining nut and the second retaining nut before being assembled with the first retaining bolt and the second retaining bolt;

[0024] Figure 3 Axonometric view of the flange before the fixing plate is attached;

[0025] Figure 4 It is an axonometric view when the flange is connected to the fixing plate and the first connecting bolt and the second connecting bolt are not installed;

[0026] Figure 5 An axonometric view after the first connecting bolt and the second connecting bolt are assembled;

[0027] In the figure, 100, flange, 101, bolt hole, 1, fixing plate, 11, first slide groove, 111, first anti-rotation groove, 12, second slide groove, 121, second anti-rotation groove, 21, first positioning assembly, 211, first positioning bolt, 2111, first threaded hole, 2112, first grinding plane, 212, first positioning nut, 22, second positioning assembly, 221, second positioning bolt, 2211, second threaded hole, 2212, second grinding plane, 222, second positioning nut, 23, third positioning assembly, 24, fourth positioning assembly, 31, first connecting bolt, 32, second connecting bolt. DETAILED DESCRIPTION

[0028] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. It should be understood that the terms "first", "second", etc. are used in the present utility model to describe various information, but such information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present utility model, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information.

[0030] The flange fixing device of the utility model is used to fix the flange 100, and the flange 100 has a plurality of bolt holes 101 arranged at intervals, such as Figures 1 to 5 As shown, the flange fixing device of the utility model comprises:

[0031] A fixing plate 1, on which a first positioning component 21 and a second positioning component 22 that can move closer to or farther from each other are provided, the first positioning component 21 is provided with a first threaded hole 2111, and the second positioning component 22 is provided with a second threaded hole 2211;

[0032] A first connecting bolt 31, the threaded end of which passes through one of the bolt holes 101 of the flange 100 in turn and is screwed into the first threaded hole 2111;

[0033] The second connecting bolt 32 , the threaded end of the second connecting bolt 32 passes through the other bolt hole 101 of the flange 100 in sequence and is screwed into the second threaded hole 2211 .

[0034] Specifically, the flange 100 can be connected to the fixing plate 1 by screwing the nut of the first connecting bolt 31 and the nut of the second connecting bolt 32. The operator does not need to use both hands to work, which reduces labor intensity and facilitates operation. Moreover, by moving the first positioning component 21 and the second positioning component 22, the spacing between the first threaded hole 2111 and the second threaded hole 2211 can be adjusted, so that the flange fixing device of the utility model can be suitable for flanges 100 of different specifications.

[0035] Among them, there are many ways to movably set the first positioning component 21 and the second positioning component 22 on the fixed plate 1, such as setting a guide rail on the fixed plate 1, and slidingly guiding the first positioning component 21 and the second positioning component 22 on the guide rail. In this embodiment, the fixed plate 1 has a first slide groove 11 and a second slide groove 12 arranged in a divergent shape with the same center, the first positioning component 21 is movably set in the first slide groove 11, and the second positioning component 22 is movably set in the second slide groove 12.

[0036] In order to facilitate fixing the adjusted first positioning assembly 21 and the second positioning assembly 22 at the desired positions of the fixing plate 1, in this embodiment, the first positioning assembly 21 includes a first positioning bolt 211 and a first positioning nut 212, and a first threaded hole 2111 is set in the first positioning bolt 211, and the screw rod of the first positioning bolt 211 passes through the first slide groove 11 and is threadedly connected to the first positioning nut 212; specifically, when it is necessary to switch the specifications of the flange 100, the first positioning bolt 211 and the first positioning nut 212 can be moved by loosening the first positioning nut 212, so as to adjust the position of the first threaded hole 2111, and after the position of the first threaded hole 2111 is adjusted to the desired position, the first positioning nut 212 is screwed, and the first positioning bolt 211 and the first positioning nut 212 clamp the first fixing plate 1, so as to fix the first positioning bolt 211;

[0037] The second positioning assembly 22 includes a second positioning bolt 221 and a second positioning nut 222. The second threaded hole 2211 is set in the second positioning bolt 221. The screw rod of the second positioning bolt 221 passes through the second slide groove 12 and is screwed with the second positioning nut 222. By loosening the second positioning nut 222, the second positioning bolt 221 and the second positioning nut 222 can be moved to adjust the position of the second threaded hole 2211. After the position of the second threaded hole 2211 is adjusted to the right position, the second positioning nut 222 is screwed, and the second positioning bolt 221 and the second positioning nut 222 clamp the first fixing plate 1, so that the second positioning bolt 221 is fixed; after the first positioning component 21 and the second positioning component 22 are adjusted into place and fixed, the flange 100 of the same specification can be fixed. When the specification of the flange 100 needs to be switched, the positions of the first positioning component 21 and the second positioning component 22 are adjusted. When the flange fixing device of the utility model is used to fix the flange 100 of the same specification, there is no need to adjust the positions of the first positioning component 21 and the second positioning component 22. The first positioning component 21 and the second positioning component 22 are kept fixed, and the disassembly and fixation of each flange 100 can be achieved by screwing the first connecting bolt 31 and the second connecting bolt 32.

[0038] In order to improve the convenience of fixing the first positioning assembly 21 and the second positioning assembly 22 after adjusting them, in this embodiment, a first anti-rotation groove 111 is provided at the position where the fixing plate 1 is opposite to the first slide groove 11, the groove width of the first anti-rotation groove 111 matches the distance between the opposite sides of the nut of the first positioning bolt 211, and the nut of the first positioning bolt 211 is slidably arranged in the first anti-rotation groove 111; a second anti-rotation groove 121 is provided at the position where the fixing plate 1 is opposite to the second slide groove 12, the groove width of the second anti-rotation groove 121 matches the distance between the opposite sides of the nut of the second positioning bolt 221, and the nut of the second positioning bolt 221 is slidably arranged in the second anti-rotation groove 121. The first positioning bolt 211 can move along the first anti-rotation groove 111, and cannot rotate by itself due to the blocking effect of the first anti-rotation groove 111. Therefore, when it is necessary to tighten the first connecting bolt 31, it is only necessary to rotate the first positioning nut 212, and the operator does not need to use the other hand to tighten the first positioning bolt 211.

[0039] In this embodiment, the groove depth of the first anti-rotation groove 111 is greater than the thickness of the nut of the first positioning bolt 211; the groove depth of the second anti-rotation groove 121 is greater than the thickness of the nut of the second positioning bolt 221. Since the groove depth of the first anti-rotation groove 111 is greater than the thickness of the nut of the first positioning bolt 211; the groove depth of the second anti-rotation groove 121 is greater than the thickness of the nut of the second positioning bolt 221, the end of the flange 100 can be flush with the end surface of the fixing plate 1, avoiding the tilt of the flange 100 during welding, and ensuring the welding quality of the flange 100.

[0040] Further, the groove width of the first chute 11 is smaller than the screw diameter of the first positioning bolt 211, and first grinding planes 2112 are provided on both sides of the screw of the first positioning bolt 211, and the distance between the two first grinding planes 2112 matches the groove width of the first chute 11; the groove width of the second chute 12 is smaller than the screw diameter of the second positioning bolt 221, and second grinding planes 2212 are provided on both sides of the screw of the second positioning bolt 221, and the distance between the two second grinding planes 2212 matches the groove width of the second chute 12. The first chute 11 can block the screw of the first positioning bolt 211 from rotating, and the second chute 12 can block the screw of the second positioning bolt 221 from rotating, further ensuring that the first positioning bolt 211 and the second positioning bolt 221 will not rotate when the first connecting bolt 31 and the second connecting bolt 32 are screwed.

[0041] In this embodiment, in order to ensure the stable fixation of the flange 100, a third positioning component 23 that can move up and down is also provided on the fixing plate 1, and the third positioning component 23 is provided with a third threaded hole. The flange fixing device also includes a third connecting bolt, and the threaded end of the third connecting bolt passes through the bolt hole 101 of the flange 100 in sequence and is screwed in the third threaded hole; the first positioning component 21 and the second positioning component 22 are respectively arranged on the left and right sides of the third positioning component 23.

[0042] Furthermore, the fixing plate 1 is provided with a fourth positioning assembly 24 that can move up and down, and the fourth positioning assembly 24 and the third positioning assembly 23 are arranged symmetrically up and down. The third positioning assembly 23 and the fourth positioning assembly 24 are arranged in a similar manner to the first positioning assembly 21 and the second positioning assembly 22.

[0043] In summary, the flange fixing device of the utility model comprises a fixing plate 1, a first connecting bolt 31 and a second connecting bolt 32. The fixing plate 1 is provided with a first positioning component 21 and a second positioning component 22 which can be close to or far away from each other. The first positioning component 21 is provided with a first threaded hole 2111, and the second positioning component 22 is provided with a second threaded hole 2211; the threaded end of the first connecting bolt 31 sequentially passes through one of the bolt holes 101 of the flange 100 and is screwed in the first threaded hole 2111; the threaded end of the second connecting bolt 32 sequentially passes through another bolt hole 101 of the flange 100 and is screwed in the second threaded hole 2211. The flange 100 can be connected to the fixing plate 1 by screwing the nut of the first connecting bolt 31 and the nut of the second connecting bolt 32, which does not require the operator to work with both hands, reduces the labor intensity and is easy to operate; and, by moving the first positioning component 21 and the second positioning component 22, the distance between the first threaded hole 2111 and the second threaded hole 2211 can be adjusted, so that the flange fixing device of the utility model can be applicable to flanges 100 of different specifications.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A flange fixing device for fixing a flange (100), wherein the flange (100) has a plurality of bolt holes (101) arranged at intervals, characterized in that: include: A fixing plate (1), wherein the fixing plate (1) is provided with a first positioning component (21) and a second positioning component (22) which can move closer to or farther from each other, the first positioning component (21) is provided with a first threaded hole (2111), and the second positioning component (22) is provided with a second threaded hole (2211); A first connecting bolt (31), wherein a threaded end of the first connecting bolt (31) passes through one of the bolt holes (101) of the flange (100) in turn and is screwed into the first threaded hole (2111); A second connecting bolt (32), wherein the threaded end of the second connecting bolt (32) passes through another bolt hole (101) of the flange (100) in sequence and is screwed into the second threaded hole (2211).

2. The flange fixing device according to claim 1, characterized in that: The fixed plate (1) has a first slide groove (11) and a second slide groove (12) which are arranged in a divergent manner with the same center; the first positioning component (21) is movably arranged in the first slide groove (11); and the second positioning component (22) is movably arranged in the second slide groove (12).

3. The flange fixing device according to claim 2, characterized in that: The first positioning assembly (21) comprises a first positioning bolt (211) and a first positioning nut (212); the first threaded hole (2111) is arranged in the first positioning bolt (211); the screw rod of the first positioning bolt (211) passes through the first sliding groove (11) and is threadedly connected to the first positioning nut (212); The second positioning assembly (22) comprises a second positioning bolt (221) and a second positioning nut (222); the second threaded hole (2211) is arranged in the second positioning bolt (221); the screw rod of the second positioning bolt (221) passes through the second sliding groove (12) and is threadedly connected to the second positioning nut (222).

4. The flange fixing device according to claim 3, characterized in that: A first anti-rotation groove (111) is provided at a position where the fixing plate (1) is opposite to the first sliding groove (11); the groove width of the first anti-rotation groove (111) matches the distance between opposite sides of the nut of the first positioning bolt (211); and the nut of the first positioning bolt (211) is slidably arranged in the first anti-rotation groove (111); A second anti-rotation groove (121) is provided at a position where the fixing plate (1) is opposite to the second sliding groove (12); the groove width of the second anti-rotation groove (121) matches the opposite side distance of the nut of the second positioning bolt (221); and the nut of the second positioning bolt (221) is slidably arranged in the second anti-rotation groove (121).

5. The flange fixing device according to claim 4, characterized in that: The groove depth of the first anti-rotation groove (111) is greater than the thickness of the nut of the first positioning bolt (211); the groove depth of the second anti-rotation groove (121) is greater than the thickness of the nut of the second positioning bolt (221).

6. The flange fixing device according to claim 4, characterized in that: The groove width of the first slide groove (11) is smaller than the screw diameter of the first positioning bolt (211), and first grinding planes (2112) are provided on both sides of the screw of the first positioning bolt (211), and the distance between the two first grinding planes (2112) matches the groove width of the first slide groove (11); The groove width of the second slide groove (12) is smaller than the screw diameter of the second positioning bolt (221), and second grinding planes (2212) are provided on both sides of the screw of the second positioning bolt (221), and the distance between the two second grinding planes (2212) matches the groove width of the second slide groove (12).

7. The flange fixing device according to claim 1, characterized in that: The fixing plate (1) is also provided with a third positioning assembly (23) that can move up and down, and the third positioning assembly (23) is provided with a third threaded hole. The flange fixing device also includes a third connecting bolt, and the threaded end of the third connecting bolt passes through the bolt hole (101) of the flange (100) in sequence and is screwed into the third threaded hole. The first positioning component (21) and the second positioning component (22) are arranged on the left and right sides of the third positioning component (23), respectively.

8. The flange fixing device according to claim 7, characterized in that: The fixing plate (1) is also provided with a fourth positioning component (24) which is movable up and down, and the fourth positioning component (24) and the third positioning component (23) are arranged symmetrically up and down.

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