Flange bolt fixer

Abstract

The utility model discloses a flange bolt fixator which comprises a connecting block, and limiting holes are formed in the two sides of the upper end of the connecting block respectively. The tail part of the first nut sleeve is matched with one of the limiting holes and is connected with the connecting block; the tail part of the second nut sleeve is matched with the other limiting hole and is rotationally connected with the connecting block; the flange is convenient to install, the first nut sleeve and the second nut sleeve are connected to the heads of the two corresponding bolts in a sleeved mode to form a whole, the situation that the upper portion of the flange rotates together with the corresponding bolts when a lower nut is screwed is avoided, and the flange is convenient to install. And an operator can finish the operation by using a tool with one hand.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas pipeline maintenance, and in particular relates to a flange bolt fixer. Background Art

[0002] Gas flanges are part of the gas pipeline system. The main function of gas flanges is to concentrically connect the gas pipe with various other pipe fittings so that the pipeline system between the various pipe fittings can be connected and separated, thereby achieving the reasonable flow and supply of gas.

[0003] The maintenance requirements for gas pipelines are generally strict, and professional construction personnel should be responsible for the installation or removal of flanges. When installing, you need to pay attention to the size of the flange to ensure the accuracy of the size to prevent damage to the pipeline system. You should also pay attention to tightening the bolts to ensure tightness to prevent the flange from loosening.

[0004] In their daily work, maintenance personnel often find it difficult to effectively disassemble and assemble flange bolts with a single tool due to problems with the screws, nuts, and nuts (such as thick paint, damaged threads, etc. that are not conducive to operation). They need to use two wrenches with both hands at the same time. For example, to prevent the bolts from rotating as the nut is turned during disassembly, one wrench is used to fix the bolts and the other is used to turn the nut.

[0005] The disadvantages of this operation are that when the disassembly and assembly reaches a certain level, if the bolt cannot be turned, the wrench must be picked up again, and the hands must be switched back and forth, which is very inconvenient. However, if the wrench is used all the time, the speed of disassembling and assembling the bolts is very slow, which affects the progress of the operation. If the equipment is large, the bolts are large, and the tools required are also large. The weight of the tools themselves increases. Not only do you have to disassemble and assemble, but you also have to keep the wrench balanced. It will feel very strenuous and inconvenient to work with both hands. Utility Model Content

[0006] In order to solve the above technical problems, the utility model installs the fixer on the flange to connect the bolt to be removed with the bolt next to it. When the nut is removed, the corresponding bolt will not rotate, and there is no need for two-handed operation, which brings convenience to the operator.

[0007] The utility model adopts the following technical solutions:

[0008] Flange bolt retainer, including:

[0009] A connecting block, wherein limiting holes are respectively provided on both sides of the upper end of the connecting block;

[0010] A first nut sleeve, the tail of which matches one of the limiting holes and is connected to the connecting block;

[0011] The second nut sleeve, the tail of which is matched with another of the limiting holes and is rotatably connected with the connecting block;

[0012] The first nut sleeve and the second nut sleeve are located on the same side of the connecting block, and the openings of the two nut sleeves are in the same direction.

[0013] Furthermore, at least one of the two limiting holes is a polygonal through hole or a racetrack-shaped through hole.

[0014] Furthermore, at least one tail portion of the first nut sleeve and the second nut sleeve has a limiting portion that matches the polygonal through hole.

[0015] Furthermore, at least one tail portion of the first nut sleeve and the second nut sleeve is connected to a tightening member that matches the racetrack-shaped through hole.

[0016] Furthermore, the tightening member is threadedly connected to the first nut sleeve and / or the second nut sleeve.

[0017] Furthermore, the two limiting holes are respectively a polygonal through hole and a racetrack-shaped through hole.

[0018] Furthermore, the polygonal through hole is a hexagonal through hole.

[0019] Furthermore, the connecting block is rectangular.

[0020] Furthermore, the side edges of the connection block are rounded.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] By using the fixing device, the nut or nut on one side of the bolt can be locked, and only one wrench is needed to disassemble and assemble the other side. There is no need to change hands back and forth during the process. In addition, when it is difficult to disassemble and assemble a larger bolt, a larger wrench can be operated with both hands to increase the force acting on the wrench for effective disassembly and assembly. There is no need to consider the balance of the screw fixation on the other end. This solves the inconvenience of having to use two wrenches at the same time when disassembling and installing the bolt, thereby saving time, effort and worry.

[0023] The technical solution is easy to install. The first nut sleeve is sleeved on the corresponding two bolt heads to make them one body, avoiding the situation where the corresponding bolts on the upper part of the flange rotate together when the lower nut is screwed. The operator only needs one hand to use the tool to complete the operation.

[0024] The first nut sleeve and the second nut sleeve in this solution are detachably connected to the connecting block. The corresponding first nut sleeve and the second nut can be replaced according to the size of the bolts on the flange, which has better applicability.

[0025] Due to the different sizes of flanges, the distance between the two bolts varies. To adapt to this change, a track-shaped through hole is used in this solution. At least one of the first nut sleeve and the second nut sleeve can be moved on the connecting block to reduce or increase the distance between the first nut sleeve and the second nut sleeve, thereby ensuring the sleeve connection of the bolts and enhancing the versatility of the present fastener for flanges.

[0026] Due to the different number and distribution of bolts on each flange, the relative angles of adjacent bolts are different. To adapt to the difference, the fixture adopts the setting of a rotating part to restrict the first nut sleeve or the second nut sleeve on the connecting block. The first nut sleeve or the second nut sleeve can not only move on the runway-shaped through hole, but also rotate to adjust the angle of the nut sleeve so that the nut sleeve opening can cooperate with the bolt head. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a left-side structural schematic diagram of the first embodiment of the utility model;

[0028] Figure 2 It is a partial structural schematic diagram of the first embodiment of the utility model;

[0029] Figure 3 This is a partial structural diagram of the second embodiment of the utility model;

[0030] Figure 4 This is a schematic diagram of the top view of the structure of the second embodiment of the utility model;

[0031] Figure 5 It is a structural schematic diagram of a left view of the second embodiment of the utility model;

[0032] The reference numerals in the drawings of the specification include:

[0033] Connecting block 1, fillet 10, first nut sleeve 2, second nut sleeve 3, stud 30, polygonal through hole 4, racetrack-shaped through hole 5, limiting portion 6, tightening member 7, flange 8, bolt 9, nut 90. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0035] Among them, the drawings are only used for exemplary explanations, and they only show schematic diagrams rather than actual drawings, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted, and the same or similar reference numerals in the drawings of the embodiments of the utility model correspond to the same or similar parts; in the description of the utility model, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer" and the like appear, the directions or positional relationships indicated are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, so the terms describing the positional relationship in the drawings are only used for exemplary explanations, and cannot be understood as limitations on this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0036] Embodiment 1:

[0037] like Figure 1 , Figure 2 As shown, the flange bolt fastener of the utility model comprises a connecting block 1, a first nut sleeve 2, and a second nut sleeve 3:

[0038] The connecting block 1 has long strip-shaped through holes on both sides of its upper end. The long strip-shaped through holes may be racetrack-shaped through holes 5 .

[0039] The tails of the first nut sleeve 2 and the second nut sleeve 3 are inserted into the racetrack-shaped through hole 5 and are respectively threadedly connected with the tightening member 7 provided on the other side of the connecting block 1;

[0040] The first nut sleeve 2 and the second nut sleeve 3 are located on the same side of the connecting block 1, and the openings of the two nut sleeves are in the same direction.

[0041] In a specific implementation, the fixture is placed on the top of the flange 8 on the upper side, and the first nut sleeve 2 and the second nut sleeve 3 are respectively sleeved on the bolts 9 in the flange. The operator uses a wrench to turn the nut 90 at the bottom of the lower flange. In this operation, it is avoided that the corresponding bolt 9 rotates together when the nut 90 is turned, and the operator only needs one hand to use the tool to complete the operation.

[0042] The first nut sleeve 2 and the second nut sleeve 3 in this solution are detachably connected to the connecting block 1. The corresponding first nut sleeve 2 and the second nut sleeve 3 can be replaced according to the size of the bolt 9 on the flange 8, which has better applicability.

[0043] The limiting holes on both sides are set in the form of runway-shaped through holes 5, and the tightness of the two nut sleeves is adjusted by using the tightening piece 7, so that the two nut sleeves can move on the connecting block 1 and change the distance between the two nut sleeves. This setting can better adapt to the distance between the flange bolts 9 according to the different sizes of the flange 8, thereby ensuring the sleeve connection of the flange bolts and enhancing the versatility of the present fixer for the flange.

[0044] Embodiment 2:

[0045] like Figure 3 , Figure 4 , Figure 5 As shown, the flange bolt fastener of the utility model comprises a connecting block 1, a first nut sleeve 2, and a second nut sleeve 3:

[0046] A polygonal through hole 4 and a racetrack-shaped through hole 5 are respectively formed on both sides of the upper end of the connection block 1 .

[0047] The tails of the first nut sleeve 2 and the second nut sleeve 3 are respectively inserted into the polygonal through hole 4 and the racetrack-shaped through hole 5 to form the connecting block 1 as a whole;

[0048] The first nut sleeve 2 and the second nut sleeve 3 are located on the same side of the connecting block 1, and the openings of the two nut sleeves are in the same direction.

[0049] Among them, the tail of the first nut sleeve 2 has a limiting portion 6 with a shape similar to the polygonal through hole 4, which is connected to the polygonal through hole 4, and the tail of the second nut sleeve 3 is connected with a stud 30. After the stud 30 is inserted into the runway-shaped through hole 5, it is threadedly connected to the tightening member 7 provided on the other side of the connecting block 1. The second nut sleeve 3 and the stud can also be replaced by bolts.

[0050] Specifically, during implementation, the first nut sleeve 2 is inserted into the polygonal through hole 4. In order to prevent the nut sleeve from rotating with the connecting block 1, a limiting portion 6 is provided at the tail of the first nut sleeve 2. The limiting portion 6 is also a polygonal structure and can cooperate with the polygonal through hole 4.

[0051] The difference between implementation example 2 and implementation example 1 is that in implementation example 2, one of the track-shaped through holes 5 is replaced by a polygonal through hole 4, so that the number of track-shaped through holes 5 is reduced without affecting the specific adjustment between the two nut sleeves, thereby enhancing the overall rigidity of the connecting block 1.

[0052] Among them, due to the different number and distribution of bolts 9 on each flange 8, the relative angles of adjacent bolts 9 are different. In order to adapt to the difference, the fixture adopts the setting of a rotating part to restrict the first nut sleeve 2 or the second nut sleeve 3 on the connecting block 1. The first nut sleeve 2 or the second nut sleeve 3 can not only move on the track-shaped through hole 5, but also rotate to adjust the angle of the nut sleeve so that the nut sleeve opening can cooperate with the head of the bolt 9.

[0053] Specifically, the polygonal through hole 4 is not particularly limited in form, and may be a pentagonal through hole, a hexagonal through hole, a square through hole, etc., and may be replaced accordingly according to the style of the flange bolt to be operated.

[0054] In addition, the connection block 1 is rectangular, and the side edges of the connection block 1 are provided with rounded corners 10 .

Claims

1. Flange bolt fastener, characterized in that: include: A connecting block (1), wherein limiting holes are respectively provided on both sides of the upper end of the connecting block (1); A first nut sleeve (2), the tail of which matches one of the limiting holes and is connected to the connecting block (1); The second nut sleeve (3) has a tail portion that matches with another of the limiting holes and is rotatably connected to the connecting block (1); The first nut sleeve (2) and the second nut sleeve (3) are located on the same side of the connecting block (1), and the openings of the two nut sleeves are in the same direction.

2. The flange bolt fastener according to claim 1, characterized in that: Of the two limiting holes, one is a racetrack-shaped through hole (5), and the other is a polygonal through hole (4) or a racetrack-shaped through hole (5).

3. The flange bolt fastener according to claim 2, characterized in that: At least one tail portion of the first nut sleeve (2) and the second nut sleeve (3) is connected to a tightening member (7) that matches the racetrack-shaped through hole (5).

4. The flange bolt fastener according to claim 3, characterized in that: The tightening member (7) is threadedly connected to the first nut sleeve (2) and / or the second nut sleeve (3).

5. The flange bolt fastener according to any one of claims 2 to 4, characterized in that: The polygonal through hole (4) is a pentagonal through hole or a hexagonal through hole.

6. The flange bolt fastener according to any one of claims 1 to 4, characterized in that: The connecting block (1) is rectangular.

7. The flange bolt fastener according to claim 6, characterized in that: The side edges of the connection block (1) are provided with rounded corners (10).

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