Auxiliary fastening device for small space

Abstract

The utility model discloses an auxiliary fastening device for small space, which comprises a bolt connecting component, the bolt connecting component is used for being connected with a nut, the bolt connecting component comprises a bolt connecting side wall and a bolt connecting bottom, and the inner side of the bolt connecting side wall is also provided with an anti-skidding bulge; the anti-skid protrusions are used for preventing sliding between the bolt connecting side wall and the nut. An abutting assembly is arranged on the bolt connecting assembly and used for abutting against the side wall of the periphery of the to-be-tightened bolt. Due to the fact that the abutting assembly is arranged on the bolt connecting assembly, when the screw head or the nut in the small space rotates, the abutting assembly can abut against the side wall around the bolt, the side wall can prevent the abutting assembly from further advancing, namely the bolt connecting assembly is prevented from rotating, and therefore the screw head or the nut in the small space is prevented from further rotating. The problem that bolts are not fastened in place is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of fastening device, specifically relates to a fastening auxiliary device for small space. BACKGROUND

[0002] In production and life, there are scenes of fastening bolts. In some cases, the space around the fastened bolt is relatively small, especially the nut or the head of the bolt may be located in a small space that the operator cannot see or operate.

[0003] For example, there are various situations of installing bolts on the inner locking turnout on the railway track, especially installing the bolt of the "L" iron vertically arranged for connecting the track and the angle steel. The shank of the bolt passes through the angle steel vertically from bottom to top. In this case, the nut is on the top, that is, facing the operator, at this time, various wrenches can be used to tighten the nut. However, the head of the bolt is on the lower side of the angle steel, and the space is relatively small, and the operator is not convenient to observe. Moreover, there are sleepers on both sides of this place, and it is very inconvenient to use the commonly used adjustable wrench and other commonly used wrenches to clamp the head of the bolt for operation, so after the nut is fastened to a certain extent, the bolt also rotates with the nut, resulting in that the fastening is not in place. SUMMARY

[0004] The utility model aims at providing a fastening auxiliary device for small space to solve the problem that the current fastening tool is difficult to fasten the head of the bolt or the nut in the small space, resulting in that the bolt or the nut rotates synchronously when fastening the nut or the head of the bolt on the other side, causing the fastening not in place.

[0005] In order to solve the above technical problem, the utility model provides a fastening auxiliary device for small space, which comprises a bolt connecting assembly, the bolt connecting assembly is used for connecting with the nut, the bolt connecting assembly comprises a bolt connecting side wall and a bolt connecting bottom, and the inner side of the bolt connecting side wall is further provided with an anti-skid convex, which is used for preventing sliding between the bolt connecting side wall and the nut.

[0006] The bolt connecting assembly is provided with an abutting assembly, which is used for abutting against the side wall around the bolt to be tightened.

[0007] Further, the bolt connecting assembly comprises an abutting rod fixing part, the abutting rod fixing part is arranged on the outer side of the bolt connecting side wall, and the abutting rod fixing part is detachably connected with an abutting long rod, and the axis direction of the abutting long rod is perpendicular to the bolt connecting side wall.

[0008] Further, the bolt connecting side wall and / or the bolt connecting bottom have magnetism.

[0009] Further, the bolt connecting side wall and the bolt connecting bottom are detachably connected.

[0010] Further, the abutting rod fixing part is provided with an internal thread, the abutting long rod is provided with an external thread, and the abutting long rod is threadedly connected with the abutting rod fixing part.

[0011] Further, the abutting rod fixing part is detachably fixedly connected with the abutting long rod through buckling.

[0012] Further, the bolt connecting side wall comprises a side wall first part and a side wall second part, and the side wall first part is movably connected with the side wall second part.

[0013] Further, the abutting assembly comprises an abutting screw rod, the abutting screw rod is fixedly connected with the side wall second part, a connecting through hole is arranged on the side wall first part, the abutting screw rod passes through the connecting through hole, and the abutting assembly further comprises an abutting nut, the abutting nut is threadedly connected with the abutting screw rod, and the abutting nut is arranged on the side wall first part, away from the side wall second part.

[0014] The beneficial effect of the fastening auxiliary device for a small space provided by the utility model lies in that: because the bolt connecting assembly is designed, the bolt connecting assembly is connected together with the screw rod head or the nut in the small space. When the nut or the screw rod head on the other side is rotated and fastened, because the abutting assembly is arranged on the bolt connecting assembly, when the screw rod head or the nut in the small space is rotated, the abutting assembly abuts against the side wall around the bolt, the side wall prevents the further advancement of the abutting assembly, that is, prevents the rotation of the bolt connecting assembly, thereby preventing the further rotation of the screw rod head or the nut in the small space, and the problem that the bolt fastening is not in place is solved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a schematic view of the fastening auxiliary device for a small space in the first embodiment;

[0016] Fig. 2 It is a schematic view of the fastening auxiliary device for a small space in the second embodiment. DETAILED DESCRIPTION

[0017] In order to better understand the purpose, structure and function of the utility model, the following will be combined with the accompanying drawings to further describe the utility model in detail. Figs. 1-2 The utility model discloses a fastening auxiliary device for a small space.

[0018] As shown in the drawings, the utility model embodiment is a fastening auxiliary device for a small space, which comprises a bolt connecting assembly for connecting with a nut. Figs. 1-2 Embodiment 1

[0019] As shown in the drawings, the utility model embodiment is a fastening auxiliary device for a small space, which comprises a bolt connecting assembly for connecting with a nut.

[0020] Fig. 1 ​As shown, the bolt connecting assembly comprises a bolt connecting side wall 110 and a bolt connecting bottom 120, and the inner side of the bolt connecting side wall 110 is further provided with anti-skid protrusions 111 for preventing sliding between the bolt connecting side wall 110 and the nut. The bolt connecting assembly is provided with an abutting assembly for abutting against the side wall around the bolt to be tightened. The bolt connecting assembly comprises an abutting rod fixing portion 210 provided on the outer side of the bolt connecting side wall 110, and the abutting rod fixing portion 210 is detachably connected with an abutting long rod 220, and the axis direction of the abutting long rod 220 is perpendicular to the bolt connecting side wall 110.

[0021] In use, the bolt connecting assembly is sleeved on the screw head or the nut in a small space, and the bolt connecting side wall 110 is connected with the screw head or the nut. Since the bolt connecting assembly is a bowl type and the outer diameter is only slightly larger than that of the screw head or the nut, the bolt connecting assembly can be conveniently sleeved on the screw head or the nut, and even in some small spaces or inconvenient observation places, the bolt connecting assembly can be conveniently sleeved on the screw head or the nut.

[0022] When the nut or the screw head on the other side relative to the screw head or the nut in the small space is rotated, if the screw head or the nut in the small space also rotates synchronously, the bolt connecting assembly will be driven to rotate, and after rotating by a certain angle, the abutting assembly will abut against the side wall of the small space, thereby preventing the further advancement of the abutting assembly. At the same time, the bolt connecting assembly will also stop rotating, so that the screw head or the nut in the small space also stops rotating. In this way, the screw head or the nut in the small space does not rotate when the nut or the screw head on the other side relative to the screw head or the nut in the small space is rotated, and the screw can be fastened. After the screw is fastened, when the bolt connecting assembly is disassembled, since the abutting assembly is always in abutting state with the side wall of the small space during the fastening process. If the bolt connecting assembly is directly disassembled, it can be more difficult, therefore, the abutting rod fixing portion 210 and the abutting long rod 220 in the abutting assembly are designed to be detachable, so that the bolt connecting assembly can be conveniently disassembled from the screw head or the nut in the small space.

[0023] In the utility model, the anti-skid protrusions 111 provided on the inner side of the bolt connecting side wall 110 can make the bolt connecting side wall 110 more stably contact with the screw head or the nut in the small space. For example, the anti-skid protrusions 111 can be designed as hexagonal, that is, the cavity in the bolt connecting side wall 110 is a hexagonal cavity, so that the bolt connecting assembly can be well matched with the screw head or the nut in the small space.

[0024] It can be understood that, because the bolt connecting side wall 110 inner cavity and the screw head or nut in the small space do not necessarily match completely, there is still a gap between the bolt connecting side wall 110 inner cavity and the screw head or nut in the small space after the bolt connecting assembly is sleeved, and the bolt connecting assembly can fall off the screw head or nut in the small space before the abutting assembly abuts, thereby causing interference to operation. When the bolt connecting side wall 110 and / or the bolt connecting bottom 120 have magnetism, after the bolt connecting assembly is sleeved on the screw head or nut in the small space, the bolt connecting assembly will not fall off the screw head or nut in the small space before the abutting assembly abuts due to the action of magnetic force.

[0025] When the nut in the small space needs to be operated, the screw connected with the nut can be relatively long, and if the bolt connecting assembly has a bottom at this time, the bolt connecting assembly can not be sleeved on the nut. Therefore, the bolt connecting side wall 110 and the bolt connecting bottom 120 are designed to be detachably connected. When the bolt connecting bottom 120 is not needed, it can be detached, so that the bolt connecting side wall 110 can be better sleeved on the nut in the small space. When the bolt connecting bottom 120 can be installed, it is installed, which can increase the strength of the bolt connecting assembly.

[0026] In some embodiments, the abutting rod fixing part 210 is provided with an internal thread, the abutting long rod 220 is provided with an external thread, and the abutting long rod 220 is threadedly connected with the abutting rod fixing part 210. In this way, after the bolt is fastened, when the bolt connecting assembly needs to be detached, only the abutting long rod 220 needs to be rotated, so that the abutting long rod 220 is away from the abutting side wall, and the bolt connecting assembly can be conveniently detached.

[0027] In other embodiments, the abutting rod fixing part 210 is detachably fixedly connected with the abutting long rod 220 through buckling. When the bolt connecting assembly needs to be detached, only the buckling needs to be opened, and the abutting rod fixing part 210 is detached from the abutting rod fixing part 210, so that the bolt connecting assembly can be detached from the screw head or nut in the small space.

[0028] Embodiment 2

[0029] As shown in Fig. 2 In order to adapt to screw heads or nuts in small spaces of various sizes, the bolt connecting side wall 110 is designed to have a split structure, that is, the bolt connecting side wall 110 includes a side wall first part 112 and a side wall second part 113, and the side wall first part 112 is movably connected with the side wall second part 113.

[0030] The utility model discloses, and the abutment screw 230 is fixedly connected with the second part 113 of side wall, and the first part 112 of side wall is provided with the connecting through -hole, and the abut touch screw 230 passes the connecting through -hole, and the abutment nut 240 is still included to the abutment screw 230, and the abutment nut 240 is connected with the abutment screw 230 with the thread, and the abutment nut 240 is set up the first part 112 of side wall on the abutment screw 230 and is away from the one side of the second part 113 of side wall.

[0031] When using, after the first part 112 of side wall is sleeved to the abutment screw 230 of the second part 113 of side wall, then screw on the abutment nut 240, place the screw head or nut in small space between the first part 112 of side wall and the second part 113 of side wall, and then rotate the abutment nut 240, so that the first part 112 of side wall and the second part 113 of side wall clamp the screw head or nut in small space. In the subsequent fastening process, the abutment screw 230 abuts to the nearby side wall, and the rotation of the screw head or nut in small space is prevented, so that the fastening work can be carried out smoothly. When the bolt connection assembly needs to be disassembled, only the abutment screw 230 is rotated to make the first part 112 of side wall and the second part 113 of side wall loosen the clamping of the screw head or nut in small space.

[0032] Finally, it should be noted that: the above only for the preferred embodiment of the utility model has described, and does not limit the protection scope of the utility model. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A fastening aid for small spaces, characterized in that The bolt connecting assembly is used for connecting with a nut, and the bolt connecting assembly comprises a bolt connecting side wall (110) and a bolt connecting bottom (120), and an anti-skid protrusion (111) is further arranged inside the bolt connecting side wall (110), and the anti-skid protrusion (111) is used for preventing sliding between the bolt connecting side wall (110) and the nut. An abutting assembly is arranged on the bolt connecting assembly, and the abutting assembly is used for abutting against a side wall around a bolt to be tightened.

2. The fastening aid of claim 1, wherein The bolt connecting assembly comprises an abutting rod fixing portion (210), the abutting rod fixing portion (210) is arranged outside the bolt connecting side wall (110), and the abutting rod fixing portion (210) is detachably connected with an abutting long rod (220), and an axis direction of the abutting long rod (220) is perpendicular to the bolt connecting side wall (110).

3. The fastening aid of claim 2, wherein, The bolt connecting side wall (110) and / or the bolt connecting bottom (120) have magnetism.

4. The fastening aid of claim 3, wherein The bolt connecting side wall (110) and the bolt connecting bottom (120) are detachably connected.

5. The fastening aid of claim 4, wherein, The abutting rod fixing portion (210) is provided with an internal thread, the abutting long rod (220) is provided with an external thread, and the abutting long rod (220) is threadedly connected with the abutting rod fixing portion (210).

6. The fastening aid device of claim 2, wherein, The abutting rod fixing portion (210) is detachably fixedly connected with the abutting long rod (220) through a buckle.

7. The fastening aid device of claim 1, wherein, The bolt connecting side wall (110) comprises a side wall first portion (112) and a side wall second portion (113), and the side wall first portion (112) is movably connected with the side wall second portion (113).

8. The fastening aid device of claim 7, wherein, The abutting assembly comprises an abutting screw rod (230), the abutting screw rod (230) is fixedly connected with the side wall second portion (113), a connecting through hole is arranged on the side wall first portion (112), the abutting screw rod (230) passes through the connecting through hole, the abutting assembly further comprises an abutting nut (240), the abutting nut (240) is threadedly connected with the abutting screw rod (230), and the abutting nut (240) is arranged on a side, away from the side wall second portion (113), of the side wall first portion (112) of the abutting screw rod (230).

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