Flange bolt anti-rotation wrench

Abstract

The utility model relates to a flange bolt anti-rotation wrench which structurally comprises a wrench sleeve, a wrench handle, a pressing plate and an adjusting mechanism, the wrench handle is located on one side of the wrench sleeve, the length direction of the wrench handle is perpendicular to the axis direction of the wrench sleeve, a sliding sleeve is connected to the wrench handle in a sleeved mode, and the pressing plate is arranged on the sliding sleeve. The pressing plate is connected with the sliding sleeve, the extending direction of the pressing plate is parallel to the axis direction of the wrench sleeve, the adjusting mechanism comprises a propelling lead screw and a rotating handle which are arranged on the wrench handle, the axis direction of the propelling lead screw is consistent with the length direction of the wrench handle, and the rotating handle is arranged on the rotating handle. The pushing lead screw is in threaded connection with the sliding sleeve, the rotating handle is connected with the pushing lead screw, and the pushing lead screw can be driven to rotate through the rotating handle. According to the utility model, the bolt head or the nut of the flange bolt can be fixed and prevented from rotating, so that the flange bolt can be conveniently fastened or disassembled.

Description

Technical Field

[0001] The utility model relates to a flange construction auxiliary tool, in particular to a flange bolt anti-rotation wrench. Background Art

[0002] Gas pipelines and pipelines and equipment are connected by flanges. The two flanges are docked and fixed by bolts. In order to ensure the sealing and stability of the flange bolts, the nuts need to be tightened, resulting in the need to use a lot of force to screw the bolts or nuts when tightening or removing the bolts. Sometimes a percussion wrench is even used to convert the striking force into torque to tighten the bolts and nuts. Since the torque on the bolt is very large, in order to prevent the bolt from rotating, an auxiliary wrench is now installed on the other side of the bolt. The auxiliary wrench is generally fixed by another operator or directly against the adjacent bolt. If the auxiliary wrench is fixed by the operator, it is difficult to ensure that the position of the auxiliary wrench remains unchanged. If the auxiliary wrench is directly against the adjacent bolt, after the bolt is tightened, the bolt cannot rotate and the auxiliary wrench will be stuck on the adjacent bolt and difficult to remove. Therefore, there is an urgent need for a wrench that can prevent the flange bolt from rotating and can be easily removed. Utility Model Content

[0003] The utility model aims to provide a flange bolt anti-rotation wrench to solve the problem that it is difficult to ensure that the flange bolts do not rotate during tightening and disassembling of the flange bolts.

[0004] The utility model is implemented as follows: a flange bolt anti-rotation wrench comprises a wrench sleeve, a wrench handle, a pressure plate and an adjusting mechanism, wherein the wrench handle is located at one side of the wrench sleeve and the length direction of the wrench handle is perpendicular to the axial direction of the wrench sleeve, a sliding sleeve is sleeved on the wrench handle, the pressure plate is connected to the sliding sleeve, the extension direction of the pressure plate is parallel to the axial direction of the wrench sleeve, the adjusting mechanism comprises a pushing screw and a rotating handle arranged on the wrench handle, the axial direction of the pushing screw is consistent with the length direction of the wrench handle, the pushing screw is threadedly connected to the sliding sleeve, the rotating handle is connected to the pushing screw, and the rotation of the pushing screw can be driven by rotating the handle.

[0005] As a further improvement of the flange bolt anti-rotation wrench of the utility model, a sliding groove or a sliding hole is opened on the wrench handle, the length direction of the sliding groove or the sliding hole is consistent with the length direction of the wrench handle, and the push screw is located in the sliding groove or the sliding hole.

[0006] As a further improvement of the flange bolt anti-rotation wrench of the utility model, the sliding sleeve includes a rectangular sleeve and a slider located in the rectangular sleeve, the rectangular sleeve and the slider are fixedly connected by screws, the rectangular sleeve is sleeved on the outside of the wrench handle, the slider is located in the sliding groove or sliding hole, and the advancement screw passes through the slider and is threadedly connected to the slider.

[0007] As a further improvement of the flange bolt anti-rotation wrench of the utility model, a cover plate is provided at the outer end of the wrench handle, and semicircular grooves are respectively opened on the cover plate and the outer ends of the wrench handle. After the cover plate is buckled on the wrench handle, the two semicircular grooves form a mounting hole, and the rotating shaft at the end of the advancement screw is installed in the mounting hole.

[0008] As a further improvement of the flange bolt anti-rotation wrench of the utility model, the mounting hole is divided into two sections with different diameters, the first section is used to install the rotating shaft at the end of the advancement screw rod, and the other section is used to install the connecting sleeve, and polygonal holes are respectively provided at both ends of the connecting sleeve, and the rotating shaft at the end of the advancement screw rod and the end of the rotating handle are respectively inserted into the polygonal holes at both ends of the connecting sleeve.

[0009] As a further improvement of the flange bolt anti-rotation wrench of the utility model, the thickness of the pressure plate is smaller than the length of the sleeve, the inner side surface of the pressure plate is flush with the inner end surface of the sleeve, and there is an arc transition between the outer side surface of the pressure plate and the outer wall of the sleeve.

[0010] As a further improvement of the flange bolt anti-rotation wrench of the utility model, the center of the wrench sleeve is a hexagonal hole or a plum blossom hole.

[0011] The utility model is a tool for assisting in fixing bolts and preventing bolts from rotating when installing or removing flange bolts. When in use, the wrench sleeve of the utility model is connected to the bolt head or nut, so that the wrench handle is close to the end surface of the flange, and the position of the pressure plate is adjusted by rotating the handle so that the pressure plate presses the surface of the flange, thereby fixing the utility model on the flange, and then the bolt is screwed at the other end of the bolt. When the bolt is subjected to a large torque, the nut or bolt head is fixed by the utility model, so that the nut or bolt can be prevented from rotating. After the bolt is tightened or removed, the position of the pressure plate is adjusted by rotating the handle so that the pressure plate is away from the surface of the flange, thereby loosening the utility model and easily removing the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model.

[0013] Figure 2 It is a side view of the utility model.

[0014] Figure 3It is a structural diagram of the utility model wrench handle end after the cover plate is removed.

[0015] Figure 4 yes Figure 1 AA view.

[0016] Figure 5 It is a use schematic diagram of the utility model.

[0017] In the figure: 1. spanner sleeve; 2. spanner handle; 3. sliding sleeve; 4. sliding hole; 5. push screw; 6. cover plate; 7. rotating handle; 8. pressure plate; 9. mounting hole; 10. connecting sleeve; 11. flange bolt; 12. flange plate; 3-1. rectangular sleeve; 3-2. slider. DETAILED DESCRIPTION

[0018] The specific implementation of the utility model is described below in conjunction with the accompanying drawings.

[0019] like Figure 1 , Figure 2 As shown, the utility model is a flange bolt 11 anti-rotation wrench, and its structure mainly includes a wrench cover 1, a wrench handle 2, a pressing plate 8 and an adjusting mechanism.

[0020] The wrench handle 2 is located on one side of the wrench sleeve 1 and the length direction of the wrench handle 2 is perpendicular to the axial direction of the wrench sleeve 1. A sliding sleeve 3 is sleeved on the wrench handle 2, and the sliding sleeve 3 can move along the wrench handle 2. The pressure plate 8 is connected to the sliding sleeve 3, and the extension direction of the pressure plate 8 is parallel to the axial direction of the wrench sleeve 1. The adjustment mechanism includes a pushing screw 5 and a rotating handle arranged on the wrench handle 2. The axial direction of the pushing screw 5 is consistent with the length direction of the wrench handle 2. The pushing screw 5 is threadedly connected to the sliding sleeve 3, and the rotating handle is connected to the pushing screw 5. The rotation of the pushing screw 5 can be driven by rotating the handle 7, thereby adjusting the position of the sliding sleeve 3 and the pressure plate 8.

[0021] The adjustment mechanism can be located outside the wrench handle 2 or inside the wrench handle 2. In order to reduce the volume of the utility model and to protect the threaded advancement screw 5, the adjustment mechanism is generally arranged inside the wrench handle 2. The specific structure is that a slide groove or slide hole 4 is provided on the wrench handle 2, the length direction of the slide groove or slide hole 4 is consistent with the length direction of the wrench handle 2, and the advancement screw 5 is located in the slide groove or slide hole 4.

[0022] In this embodiment, a sliding hole 4 is provided on the wrench handle 2 . The sliding hole 4 is located on the center line of the wrench handle 2 and is in the shape of an elongated strip. The advancing screw rod 5 is entirely located in the sliding hole 4 .

[0023] like Figure 4As shown, the sliding sleeve 3 needs to be threadedly connected with the advancing screw 5 located in the sliding hole 4 or the sliding groove, so the sliding sleeve 3 includes a rectangular sleeve 3-1 and a slider 3-2 located in the rectangular sleeve 3-1, and the rectangular sleeve 3-1 and the slider 3-2 are fixedly connected by screws. The rectangular sleeve 3-1 is sleeved on the outside of the wrench handle 2, and the slider 3-2 is located in the sliding hole 4 or the sliding groove. The advancing screw 5 passes through the slider 3-2 and is threadedly connected to the slider 3-2.

[0024] The rectangular sleeve 3-1 and the slider 3-2 are separate structures. During installation, the slider 3-2 installed on the advancing screw 5 is first placed in the sliding hole 4, and then the rectangular sleeve 3-1 is sleeved on the wrench handle 2, the rectangular sleeve 3-1 is moved so that the two overlap, and the rectangular sleeve 3-1 and the slider 3-2 are fixed with screws.

[0025] When the push screw 5 rotates, it can drive the slider 3-2 to move in the slide hole 4, so that the rectangular sleeve 3-1 moves along the wrench handle 2. Since the push screw 5 and the slider 3-2 are threadedly connected, and the threaded connection has self-locking properties, after the pressure rod is adjusted to a certain position, unless the push screw 5 is rotated, the position of the pressure plate 8 will not move, thereby ensuring the stability of the utility model after being fixed on the flange 12.

[0026] like Figure 3 As shown, in order to facilitate the installation of the advancement screw 5, a cover plate 6 is provided at the outer end of the wrench handle 2, the cover plate 6 is located on the side where the pressure plate 8 is located or on the back side of the side where the pressure plate 8 is located, and the cover plate 6 is fixed to the body of the wrench handle 2 by screws. Semicircular grooves are respectively provided at the outer ends of the cover plate 6 and the wrench handle 2. After the cover plate 6 is buckled on the wrench handle 2, the two semicircular grooves form a mounting hole 9, and the rotating shaft at the end of the advancement screw 5 is installed in the mounting hole 9.

[0027] When installing the advancement screw 5, first remove the cover plate 6 at the end of the wrench handle 2, then insert one end of the advancement screw 5 into the hole on the slide hole 4 or the slide groove close to one end of the wrench sleeve 1, place the other end of the advancement screw 5 in the installation hole 9, and then fix the cover plate 6 on the wrench handle 2 with screws.

[0028] The rotating handle 7 can be directly welded to the end of the advancing screw rod 5. At this time, the two are an integrated structure, and the rotating handle 7 cannot be removed from the utility model.

[0029] The rotating handle 7 can also be designed as a detachable structure. The rotating handle 7 needs to be connected to the end of the advancing screw 5 through the connecting sleeve 10. In this case, the mounting hole 9 needs to be divided into two sections with different diameters. The first section is arranged close to the sliding hole 4 or the sliding groove, and is used to install the rotating shaft at the end of the advancing screw 5. The other section is far away from the sliding hole 4 or the sliding groove, and is used to install the connecting sleeve 10. The rotating shaft at the end of the advancing screw 5 passes through the first section of the mounting hole 9 and is then connected to the connecting sleeve 10. The rotating handle 7 is inserted into the other end of the connecting sleeve 10 and connected to the connecting sleeve 10.

[0030] Specifically, polygonal holes are respectively provided at both ends of the connecting sleeve 10, and the rotating shaft at the end of the advancing screw rod 5 and the end of the rotating handle 7 are respectively inserted into the polygonal holes at both ends of the connecting sleeve 10, and the end of the rotating shaft of the advancing screw rod 5 and the end of the rotating handle 7 are both polygonal columns that match the polygonal holes. In this case, the rotating handle 7 can be a common hexagonal wrench on the market, and the polygonal hole on the connecting sleeve 10 for connecting the rotating handle 7 is a hexagonal hole.

[0031] In order to enable the sleeve 3 to withstand greater force, the length of the thread connecting the sleeve 3 and the advancement screw 5 should not be too short, so the length of the sleeve 3 should be greater than the thickness of the pressure plate 8. In order to ensure the connection strength between the pressure plate 8 and the sleeve 3, the inner side surface of the pressure plate 8 is flush with the inner end surface of the sleeve 3, and the outer side surface of the pressure plate 8 and the outer wall of the sleeve 3 are in an arc-shaped transition.

[0032] The center of the wrench sleeve 1 is a hexagonal hole or a plum blossom hole.

[0033] The utility model is a tool for assisting in fixing the bolts to prevent the bolts from rotating when installing or removing the flange bolts 11. The method of using the tool is as follows: Figure 5 As shown, when tightening or removing the flange bolt 11, the wrench sleeve 1 of the utility model is sleeved on the nut or bolt sleeve on one side of the flange 12, and then the position of the pressure plate 8 is adjusted by rotating the handle 7 to press it on the surface of the flange 12. The pressure plate 8 is pressed to fix the utility model on the flange 12, and then the bolt is tightened or removed by screwing the bolt at the other end of the flange 12. Since the utility model fixes the bolt head or nut to restrict its rotation, it is no longer necessary for a separate operator to fix the auxiliary wrench. Since the wrench is fixed by pressing the pressure plate 8 on the flange 12, the utility model can be loosened by rotating the handle 7 to keep the pressure plate 8 away from the surface of the flange 12, and then the utility model can be easily removed.

Claims

1. A flange bolt anti-rotation wrench, characterized in that: The invention comprises a wrench cover, a wrench handle, a pressure plate and an adjusting mechanism, wherein the wrench handle is located at one side of the wrench cover and the length direction of the wrench handle is perpendicular to the axial direction of the wrench cover, a sliding sleeve is sleeved on the wrench handle, the pressure plate is connected to the sliding sleeve, the extension direction of the pressure plate is parallel to the axial direction of the wrench cover, the adjusting mechanism comprises a pushing screw and a rotating handle arranged on the wrench handle, the axial direction of the pushing screw is consistent with the length direction of the wrench handle, the pushing screw is threadedly connected to the sliding sleeve, the rotating handle is connected to the pushing screw, and the rotation of the pushing screw can be driven by rotating the handle.

2. The flange bolt anti-rotation wrench according to claim 1, characterized in that: A sliding groove or a sliding hole is provided on the wrench handle, the length direction of the sliding groove or the sliding hole is consistent with the length direction of the wrench handle, and the advancing screw rod is located in the sliding groove or the sliding hole.

3. The flange bolt anti-rotation wrench according to claim 2, characterized in that: The sliding sleeve includes a rectangular sleeve and a slider located in the rectangular sleeve, the rectangular sleeve and the slider are fixedly connected by screws, the rectangular sleeve is sleeved on the outside of the wrench handle, the slider is located in the sliding groove or sliding hole, and the advancing screw passes through the slider and is threadedly connected to the slider.

4. The flange bolt anti-rotation wrench according to claim 2, characterized in that: A cover plate is arranged at the outer end of the wrench handle, and semicircular grooves are respectively opened on the cover plate and the outer ends of the wrench handle. After the cover plate is buckled on the wrench handle, the two semicircular grooves form a mounting hole, and the rotating shaft at the end of the advancement screw is installed in the mounting hole.

5. The flange bolt anti-rotation wrench according to claim 4, characterized in that: The mounting hole is divided into two sections with different diameters. The first section is used to install the rotating shaft at the end of the advancement screw rod, and the other section is used to install the connecting sleeve. Polygonal holes are respectively provided at both ends of the connecting sleeve. The rotating shaft at the end of the advancement screw rod and the end of the rotating handle are respectively inserted into the polygonal holes at both ends of the connecting sleeve.

6. The flange bolt anti-rotation wrench according to claim 1, characterized in that: The thickness of the pressing plate is smaller than the length of the sliding sleeve, the inner side surface of the pressing plate is flush with the inner end surface of the sliding sleeve, and an arc-shaped transition is formed between the outer side surface of the pressing plate and the outer wall of the sliding sleeve.

7. The flange bolt anti-rotation wrench according to claim 1, characterized in that: The center of the wrench sleeve is a hexagonal hole or a plum blossom hole.

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