Auxiliary tool for disassembling and assembling bolt in narrow space

Abstract

The utility model provides an auxiliary tool for dismounting and mounting a bolt in a narrow space, which comprises an L-shaped plate body, one end of the plate body is detachably connected with a connecting plate, and the connecting plate is provided with a first hexagonal hole; a second hexagonal hole is formed in the face, perpendicular to the connecting plate, of the plate body, and the inner diameter of the second hexagonal hole is larger than that of the first hexagonal hole. The bolt dismounting device is easy to operate and high in practicability, only the plate body needs to be placed in place, manual fixation is not needed, the bolt fixing effect is good, nuts are not affected during dismounting, the labor intensity of workers during bolt dismounting is reduced, the working efficiency can be greatly improved, and the maintenance time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary tools, in particular to an auxiliary tool for disassembling and assembling bolts in a narrow space. Background Art

[0002] The bottom valve of the discharge tank of the reactor in chemical production equipment is connected to the equipment body by a flange. The reactor is usually provided with a temperature control jacket on the outside. At the installation position of the tank bottom valve, the connecting flanges are all lower than the jacket due to the bulging jacket around it. When installing or removing the connecting flange bolts, the staff can only operate the nut on the end of the bolt close to the opening of the jacket, while the end of the bolt far from the opening of the jacket cannot be inserted with an existing ordinary wrench due to the narrow position inside the jacket, making it extremely difficult to remove the flange bolts. Utility Model Content

[0003] The utility model discloses an auxiliary tool for disassembling and assembling bolts in a narrow space, which solves the problem that the internal position of a jacket is narrow and an existing common spanner cannot be inserted, resulting in extremely difficult disassembly of flange bolts.

[0004] In order to solve the above technical problems, the utility model specifically adopts the following technical solutions:

[0005] An auxiliary tool for disassembling and assembling bolts in a narrow space comprises an L-shaped plate body, one end of the plate body is detachably connected to a connecting plate, and a No. 1 hexagonal hole is provided on the connecting plate; a No. 2 hexagonal hole is provided on a surface of the plate body perpendicular to the connecting plate, and the inner diameter of the No. 2 hexagonal hole is greater than the inner diameter of the No. 1 hexagonal hole.

[0006] Compared with the prior art, the utility model has the following beneficial effects:

[0007] After the plate body is placed in the jacket, according to the size of the bolt head, a No. 1 hexagonal hole or a No. 2 hexagonal hole is selected to cover the head of the bolt to fix the bolt, and then the nut on the bolt is removed using an external tool. During the removal of the nut, the bolt will not rotate with the nut; the No. 1 hexagonal hole and the No. 2 hexagonal hole have different inner diameters, so that two bolts of different sizes can be fixed, and according to the sizes of other different bolt heads, the staff can replace different connecting plates after disassembling the connecting plate and the plate body so that the No. 1 hexagonal hole on the connecting plate is adapted to the size of the bolt head; the utility model is simple to operate and has strong practicality. It only needs to put the plate body in place without manual fixation, and the fixing effect of the bolt is good. The nut is not affected during disassembly, which reduces the labor intensity of the staff when removing the bolt, can greatly improve the work efficiency, and shorten the maintenance time. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the utility model in front view and section;

[0009] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at point A;

[0010] Figure 3 It is a structural schematic diagram of the side view of the plate body of the utility model;

[0011] Figure 4 It is a schematic diagram of the structure displayed when the board of the utility model is in use.

[0012] In the figure: 1. plate body; 2. connecting plate; 21. No. 1 hexagonal hole; 22. protrusion; 23. screw; 3. No. 1 hexagonal hole; 4. magnet; 5. nut; 6. jacket; 7. upper flange; 8. lower flange; 9. bolt. DETAILED DESCRIPTION

[0013] The specific contents of the utility model are described in detail below with reference to the accompanying drawings and embodiments.

[0014] like Figure 1 , Figure 3 and Figure 4 As shown, the utility model provides an auxiliary tool for disassembling and assembling bolts in a narrow space, comprising an L-shaped plate body 1, one end of the plate body 1 is detachably connected to a connecting plate 2, and a No. 1 hexagonal hole 21 is provided on the connecting plate 2; a No. 2 hexagonal hole 3 is provided on a surface of the plate body 1 that is perpendicular to the connecting plate 2, and the inner diameter of the No. 2 hexagonal hole 3 is greater than the inner diameter of the No. 1 hexagonal hole 21.

[0015] like Figure 1 and Figure 2 As shown, a protrusion 22 is fixed on the connecting plate 2, a groove matching the protrusion 22 is provided at one end of the plate body 1 away from the No. 2 hexagonal hole 3, a screw 23 is threadedly connected to the plate body 1, and a screw hole matching the screw 23 is provided on the protrusion 22. When different bolts 9 need to be fixed, the screw 23 can be separated from the plate body 1, the protrusion 22 can be separated from the groove on the plate body 1, and then a different connecting plate 2 can be replaced, so that the No. 1 hexagonal hole 21 on the connecting plate 2 is matched with the head of the bolt 9, and then the connecting plate 2 is placed in the jacket 6, so that the No. 1 hexagonal hole 21 on the connecting plate 2 covers the head of the bolt 9, and the bolt 9 is fixed; by replacing different connecting plates 2, more bolts 9 of different models can be fixed.

[0016] like Figure 1 and Figure 4As shown, the distance from the end of the plate body 1 away from the connecting plate 2 to the bending part of the plate body 1 is the same as the distance from the end of the connecting plate 2 away from the plate body 1 to the bending part of the plate body 1. The distance from the end of the connecting plate 2 not in contact with the plate body 1 to the bending part of the plate body 1 is the same as the distance from the end of the plate body 1 not in contact with the connecting plate 2 to the bending part of the plate body 1, so that whether the bolt 9 is fixed by using the No. 1 hexagonal hole 21 or the No. 2 hexagonal hole 3, it will not be affected by the narrow space in the jacket 6.

[0017] like Figure 1 , Figure 2 and Figure 4 As shown, both sides of the inner side of the plate body 1 are inlaid with magnets 4. When the plate body 1 is placed on the upper flange 7, the magnets 4 in contact with the top surface of the upper flange 7 can be adsorbed on the upper flange 7 to increase the stability of the plate body 1.

[0018] When in use, the plate body 1 is made of steel, and the total length of the plate body 1 plus the connecting plate 2 is about six centimeters. The plate body 1 is bent to make the plate body 1 at a right angle, and can clamp the edges of the upper flange 7 and the lower flange 8 when rotated, so that the bolt 9 is fixed; since the plate body 1 is only used for fixing, there is no need for an overly long torque handle, and the shorter plate body 1 and connecting plate 2 can just extend into the narrow area of ​​the equipment; according to the size of the head of the bolt 9, after the plate body 1 enters the narrow space in the jacket 6, use the No. 1 hexagonal hole 21 or the No. 2 hexagonal hole 3 to cover the head of the bolt 9 to complete the fixing of the bolt 9, and then the staff uses an external tool to remove the nut 5 from the bolt 9. During the removal of the nut 5, after the bolt 9 is fixed, it will not rotate with the nut 5.

[0019] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An auxiliary tool for disassembling and assembling bolts in a narrow space, characterized in that: The invention comprises an L-shaped plate body (1), one end of which is detachably connected to a connecting plate (2), and a No. 1 hexagonal hole (21) is provided on the connecting plate (2); a No. 2 hexagonal hole (3) is provided on a surface of the plate body (1) perpendicular to the connecting plate (2), and the inner diameter of the No. 2 hexagonal hole (3) is greater than the inner diameter of the No. 1 hexagonal hole (21).

2. The auxiliary tool for disassembling and assembling bolts in a narrow space according to claim 1, characterized in that: A protrusion (22) is fixed on the connecting plate (2); a groove matching the protrusion (22) is provided at one end of the plate body (1) away from the No. 2 hexagonal hole (3); a screw (23) is threadedly connected to the plate body (1); and a screw hole matching the screw (23) is provided on the protrusion (22).

3. The auxiliary tool for disassembling and assembling bolts in a narrow space according to claim 1, characterized in that: The distance from one end of the plate body (1) away from the connecting plate (2) to the bending point of the plate body (1) is the same as the distance from one end of the connecting plate (2) away from the plate body (1) to the bending point of the plate body (1).

4. The auxiliary tool for disassembling and assembling bolts in a narrow space according to claim 1, characterized in that: Magnets (4) are embedded on both inner surfaces of the plate body (1).

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