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CN-224209836-U - Nut auxiliary fastening device

CN224209836UCN 224209836 UCN224209836 UCN 224209836UCN-224209836-U

Abstract

The utility model discloses an auxiliary nut fastening device, and relates to the technical field of power distribution maintenance tools. The fastening assembly comprises a first fastening piece and a second fastening piece which are arranged at intervals along a first direction and extend along a second direction, a first arc-shaped surface is arranged on one side, facing the second fastening piece, of the first fastening piece, a second arc-shaped surface is arranged on one side, facing the first fastening piece, of the second fastening piece, a first accommodating space is formed between the first arc-shaped surface and the second arc-shaped surface, a bolt penetrates through the first accommodating space along the second direction, the first direction is vertical, an included angle is formed between the first direction and the second direction, a pressing assembly is sleeved on the fastening assembly, the central line of the pressing assembly is parallel to the axis of the bolt, and the pressing assembly can enable the first fastening piece and the second fastening piece to move towards the direction close to the axis of the bolt so as to press the bolt. The nut auxiliary fastening device is used for assisting the fastening of the nut on the outer side of the power bridge, simplifying the replacement step of the connecting wire and improving the working efficiency.

Inventors

  • ZHANG FAN
  • TONG LEI
  • QI SHIYANG
  • JIANG YUNBING
  • LEI ZHENYU
  • ZHU HEHUI
  • HU MINGTAO
  • HU KEGANG
  • ZHANG DAWEI
  • LV CHENG

Assignees

  • 红云红河烟草(集团)有限责任公司

Dates

Publication Date
20260508
Application Date
20250528

Claims (10)

  1. 1. A nut-assisted fastening device for fixing a bolt (10) during fastening of a nut to the bolt (10), characterized by comprising: The fastening assembly (1) comprises a first fastening piece (11) and a second fastening piece (12) which are arranged at intervals along a first direction (X1) and extend along a second direction (X2), wherein a first arc-shaped surface (111) is arranged on one side of the first fastening piece (11) facing the second fastening piece (12), a second arc-shaped surface (121) is arranged on one side of the second fastening piece (12) facing the first fastening piece (11), a first accommodating space (13) is formed between the first arc-shaped surface (111) and the second arc-shaped surface (121), the bolt (10) penetrates through the first accommodating space (13) along the second direction (X2), the first direction (X1) is a vertical direction, and the first direction (X1) and the second direction (X2) form an included angle; the pressing assembly (2) is sleeved on the fastening assembly (1), the center line of the pressing assembly (2) is parallel to the axis of the bolt (10), and the pressing assembly (2) can enable the first fastening piece (11) and the second fastening piece (12) to move towards the direction close to the axis of the bolt (10) so as to press the bolt (10).
  2. 2. Nut auxiliary tightening device according to claim 1, characterized in that the pressure application assembly (2) comprises a pressure application ring (21) and an adjustment member (22); The pressing ring (21) is sleeved on the first fastening piece (11) and the second fastening piece (12) at the same time, the pressing ring (21) comprises an open end (211) and a closed end (212), the adjusting piece (22) penetrates through the open end (211), the adjusting piece (22) can enable the inner diameter of the pressing ring (21) to be reduced, and then the pressing ring (21) can compress the first fastening piece (11) and the second fastening piece (12) to enable the first fastening piece (11) and the second fastening piece (12) to move towards the direction close to the axis of the bolt (10).
  3. 3. Nut auxiliary fastening device according to claim 2, characterized in that the open end (211) of the pressing ring (21) is symmetrically provided with a first connection portion (213) and a second connection portion (214), the first connection portion (213) and the second connection portion (214) both extend in the radial direction of the pressing ring (21), and the adjusting member (22) is simultaneously threaded through the first connection portion (213) and the second connection portion (214).
  4. 4. Nut auxiliary fastening device according to claim 2, characterized in that the first fastening member (11) comprises a plurality of first fastening sub-portions (112) arranged in the second direction (X2), the plurality of first fastening sub-portions (112) being arranged in an increasing or decreasing size in the first direction (X1), the pressing ring (21) being arranged around the first fastening sub-portions (112).
  5. 5. The nut supplemental tightening device according to claim 4, wherein the second fastener (12) comprises a plurality of second tightening sub-portions (122) arranged in the second direction (X2), the plurality of second tightening sub-portions (122) being incrementally or decrementally sized in the first direction (X1); The second fastening sub-parts (122) and the first fastening sub-parts (112) are symmetrically arranged by taking the axis of the bolt (10) as a symmetrical axis, and the pressing ring (21) is sleeved on the first fastening sub-parts (112) and the second fastening sub-parts (122).
  6. 6. Nut auxiliary tightening device according to claim 1, characterized in that the number of pressing members (2) is plural, a plurality of the pressing members (2) being arranged at intervals along the second direction (X2).
  7. 7. Nut auxiliary tightening device according to claim 1, characterized in that the cross-section of the tightening assembly (1) is semi-elliptical in shape, the direction of the cross-section being perpendicular to the second direction (X2) and parallel to the first direction (X1).
  8. 8. Nut auxiliary tightening device according to claim 1, characterized in that the cross-section of the tightening assembly (1) is polygonal in shape, the direction of which is perpendicular to the second direction (X2) and parallel to the first direction (X1).
  9. 9. The nut auxiliary fastening device according to any one of claims 1 to 7, further comprising a lining component (3) sleeved on the bolt (10), wherein the lining component (3) penetrates through the first accommodating space (13) along the second direction (X2).
  10. 10. Nut auxiliary fastening device according to claim 9, characterized in that the lining assembly (3) comprises a first lining part (31) and a second lining part (32) which are arranged at intervals along the first direction (X1) and extend along the second direction (X2), wherein a third arc-shaped surface (311) is arranged on one side of the first lining part (31) facing the second lining part (32), a fourth arc-shaped surface (321) is arranged on one side of the second lining part (32) facing the first lining part (31), a second accommodating space (33) is formed between the third arc-shaped surface (311) and the fourth arc-shaped surface (321), and the bolt (10) penetrates the second accommodating space (33) along the second direction (X2).

Description

Nut auxiliary fastening device Technical Field The utility model relates to the technical field of power distribution maintenance tools, in particular to an auxiliary nut fastening device. Background The power bridge connecting wire has the functions of electric conduction and grounding protection, and after long-time use, the metal part of the power bridge connecting wire generally needs to be replaced due to rust and corrosion, damage caused by mechanical stress, contact resistance increase and the like. In addition, in order to avoid that the sharp end or protruding portion of the bolt directly contacts the cable insulation layer, or that the tip of the bolt breaks the cable jacket in the telescopic or vibrating environment of the bridge caused by cable movement and temperature change, resulting in short circuit or leakage risk, when the bolt is used to fix the power bridge connection wire, the head of the bolt (i.e. one end of the hexagonal shape) is generally located inside the power bridge, and the nut is located outside the power bridge. This makes it necessary to make a power bridge use a handle to fix the head of the bolt from the inside of the power bridge during the replacement of the power bridge connection line, so that the nut located outside the power bridge can be fastened to the shank of the bolt, and the power bridge connection line is then re-fixed to the bolt. In the replacement process, the power bridge needs to be opened, so that the operation is troublesome, and the risk of damaging cables in the power bridge is increased. The external threads on the rod body can be damaged by directly clamping the rod body part of the bolt by using tools such as a wrench, pliers and the like, so that the fastening of the nut is affected. Accordingly, there is a need for a nut assist fastening device that addresses the above-described issues. Disclosure of utility model The utility model aims to provide an auxiliary nut fastening device which is used for assisting in fastening a nut on the outer side of a power bridge, simplifying the replacement step of a connecting wire of the power bridge, improving the working efficiency, reducing the risk of damaging an internal cable of the power bridge in the process of replacing the connecting wire, and reducing the risk of damaging external threads of a bolt body part. To achieve the purpose, the utility model adopts the following technical scheme: The utility model provides a nut auxiliary fastening device which is used for fixing a bolt in the process of fastening the nut on the bolt, and comprises a fastening component and a pressing component, wherein the fastening component comprises a first fastening piece and a second fastening piece which are arranged at intervals along a first direction and extend along a second direction, one side of the first fastening piece, which faces the second fastening piece, is provided with a first arc-shaped surface, one side of the second fastening piece, which faces the first fastening piece, is provided with a second arc-shaped surface, a first accommodating space is formed between the first arc-shaped surface and the second arc-shaped surface, the bolt penetrates through the first accommodating space along the second direction, the first direction is in a vertical direction, the first direction and the second direction form an included angle, the pressing component is sleeved on the fastening component, the central line of the pressing component is parallel to the axis of the bolt, and the pressing component can enable the first fastening piece and the second fastening piece to move towards the direction close to the axis of the bolt so as to press the bolt. In some embodiments, the pressing assembly comprises a pressing ring and an adjusting piece, the pressing ring is sleeved on the first fastening piece and the second fastening piece at the same time, the pressing ring comprises an open end and a closed end, the adjusting piece penetrates through the open end, the adjusting piece can enable the inner diameter of the pressing ring to be smaller, and therefore the pressing ring can press the first fastening piece and the second fastening piece, and the first fastening piece and the second fastening piece can move towards the direction close to the axis of the bolt. In some embodiments, the opening end of the pressing ring is symmetrically provided with a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion extend along the radial direction of the pressing ring, and the adjusting piece is simultaneously arranged on the first connecting portion and the second connecting portion in a penetrating mode. In some embodiments, the first fastening member includes a plurality of first fastening sub-portions arranged along the second direction, the size of the plurality of first fastening sub-portions in the first direction is increased or decreased, and the pre