Tool for self-tightening and screwing track bolt

Abstract

The utility model discloses a self-tightening tool for screwing a track bolt, which comprises a connecting rod, a fixed tong head and a movable tong head, the fixed tong head is arranged at the end part of the connecting rod, the movable tong head is a C-shaped tong head, one end of the C-shaped tong head is hinged on the fixed tong head through a pin shaft, jaws of the fixed tong head and the movable tong head correspond to each other, and the other end of the C-shaped tong head is connected with the connecting rod. A jaw of the fixed plier head is an arc-shaped jaw, a jaw of the C-shaped plier head is an obtuse-angle jaw, the arc-shaped jaw and the obtuse-angle jaw are oppositely arranged, and a track bolt is clamped through the obtuse-angle jaw and the arc-shaped jaw to be mounted and dismounted; according to the wrench, rail bolts of different models can be disassembled and assembled, the situation that a large number of wrenches of multiple specifications and models need to be carried in daily work is avoided, operation is convenient and easy, potential safety hazards are low, and the working efficiency of screwing the rail bolts can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to railway engineering technical field, concretely relates to a tool of self-tightening and twisting track bolt, and is mainly used for the tightening or loosening of many models of screw such as line joint silk, station silk, insulating joint silk and track gauge pole silk. BACKGROUND

[0002] The existing track bolt needs to carry various models of wrench, sleeve and force bar in order to operate in the process of installation, disassembly and maintenance, and the operation time is long and the efficiency is low, and various models of wrench, sleeve and force bar also need to be collected and carried when moving from one work point to another, which is time-consuming and laborious and further reduces the operation efficiency. UTILITARIAN CONTENT

[0003] In view of the problems existing in the prior art, the utility model provides a tool of self-tightening and twisting track bolt, which satisfies the disassembly and assembly of track bolts of different models, avoids the need to carry a large number of wrenches of different specifications and models in daily operation, is convenient and simple to operate, has low safety hazards, and helps to improve the operation efficiency of twisting track bolts.

[0004] In order to achieve the above purpose, the utility model adopts the technical scheme of a tool of self-tightening and twisting track bolt, which comprises a connecting rod, a fixed jaw and a movable jaw, the fixed jaw is installed at the end of the connecting rod, the movable jaw is a C-shaped jaw, one end of the C-shaped jaw is hinged to the fixed jaw by a pin shaft, so that the jaws of the fixed jaw and the movable jaw correspond to each other, the jaw of the fixed jaw is an arc-shaped jaw, the jaw of the C-shaped jaw is an obtuse-angle jaw, the arc-shaped jaw and the obtuse-angle jaw are oppositely arranged, and the track bolt is clamped by the obtuse-angle jaw and the arc-shaped jaw for installation and disassembly.

[0005] Further, a plurality of tooth-shaped protrusions are arranged on the tightening surfaces of the obtuse-angle jaw and the arc-shaped jaw.

[0006] Further, a torsional spring is arranged between the fixed jaw and the movable jaw, the torsional spring is installed on the pin shaft between the movable jaw and the fixed jaw, and the two ends of the torsional spring are connected to the fixed jaw and the movable jaw respectively, the track bolt is clamped between the fixed jaw and the movable jaw by the torsional spring.

[0007] Further, an elastic sheet is arranged between the fixed jaw and the movable jaw, one end of the elastic sheet is fixed to the movable jaw, the other end of the elastic sheet is connected to the movable jaw, the elastic sheet is deformed by the rotation of the movable jaw, a restoring force is generated, and the track bolt is clamped between the fixed jaw and the movable jaw by the elastic sheet.

[0008] Further, the movable clamp head is provided with a through hole, a limiting pin is installed in the through hole, and the limiting pin is used for connecting and limiting the elastic sheet.

[0009] Further, the end of the connecting rod away from the fixed clamp head is a handle end, and the handle is provided with an anti-skid sleeve.

[0010] Further, the obtuse angle clamp opening is 110-145°.

[0011] The utility model discloses the beneficial effect is: through the arc shape clamp opening and obtuse angle clamp opening carry out the triangle positioning to the nut or cap nut of track bolt, realize the dismounting requirement of track bolt, avoid daily operation need to carry a large number of multi -specification, multi -model spanner, also satisfy the dismounting of different model track bolt, through increasing torsional spring or elastic sheet can make the clamp opening have elasticity, make it have automatic clamping effect, make its operation more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is normal state structure schematic diagram of the utility model;

[0013] Fig. 2 It is clamp opening opening structure schematic diagram of the utility model;

[0014] In the drawing: 1, connecting rod;11, handle;2, fixed clamp head;21, obtuse angle clamp opening;3, movable clamp head;31, arc shape clamp opening;4, pin shaft. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and advantage of the utility model more clear and obvious, below, through the drawing and example, the utility model is further detailedly explained.But it should be understood, the specific embodiment described here is only used to explain the utility model, and is not used to limit the scope of the utility model.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs, and the terminology used in the specification herein is only for the purpose of describing the specific embodiments of the utility model, and is not intended to limit the utility model.

[0017] As Figs. 1-2As shown, a tool for self-tightening rail bolt, comprising: a connecting rod 1, a fixed jaw 2, a movable jaw 3, the fixed jaw 2 is installed at the end of the connecting rod 1, the movable jaw 3 is a C-shaped jaw, one end of the C-shaped jaw is hinged to the fixed jaw 2 through a pin shaft 4, so that the jaws of the fixed jaw 2 and the movable jaw 3 correspond to each other, the jaw of the fixed jaw 2 is an arc-shaped jaw 31, the jaw of the C-shaped jaw is an obtuse angle jaw 21, the arc-shaped jaw 31 and the obtuse angle jaw 21 are oppositely arranged, and the rail bolt is clamped and installed or dismounted through the obtuse angle jaw 21 and the arc-shaped jaw 31.

[0018] A plurality of tooth-shaped protrusions are arranged on the tightening surfaces of the obtuse angle jaw 21 and the arc-shaped jaw 31, the tooth-shaped protrusions increase the fixation of the rail bolt and increase the friction, so that the obtuse angle jaw 21 and the arc-shaped jaw 31 are more easily fixed to the rail bolt.

[0019] The nut or cap of the rail bolt is triangularly positioned by the arc-shaped jaw 31 and the obtuse angle jaw 21, the dismounting or installing requirements are met, and this way is also suitable for various types of rail bolts, so that one tool meets the needs of dismounting or installing various rail bolts.

[0020] The obtuse angle jaw 21 is preferably a jaw with an angle of 120°, 125°, 130°, 135°, 140° or 145°, which can further increase the dismounting of various types of bolts and improve the applicability. The end of the connecting rod 1 away from the fixed jaw 2 is a handle 11, and the handle 11 is provided with an anti-slip sleeve to facilitate holding and prevent slipping.

[0021] The work is to clamp the obtuse angle jaw 21 on two surfaces of the cap or nut of the rail bolt at the same angle, clamp the arc-shaped jaw 31 on a local position of one surface of the cap or nut of the rail bolt, form a triangle with three points, realize clamping of the rail bolt, and realize installation or dismounting of the rail bolt by pushing the connecting rod 1.

[0022] However, the above-mentioned way needs to manually clamp the fixed jaw 2 and the movable jaw 3 on the rail bolt, first apply a force to the connecting rod 1 to ensure that the fixed jaw 2 and the movable jaw 3 are clamped on the rail bolt, and then loosen the fixed jaw 2 and the movable jaw 3. This way is not simple and causes cumbersome use, therefore, a torsional spring or elastic sheet is added, which can release the hand from manually clamping the fixed jaw 2 and the movable jaw 3 on the rail bolt, so that the operation is more convenient.

[0023] A torsion spring is arranged between the fixed jaw 2 and the movable jaw 3, the torsion spring is installed on the pin shaft 4 of the movable jaw 3 and the fixed jaw 2, and the two ends of the torsion spring are connected with the fixed jaw 2 and the movable jaw 3 respectively, the torsion spring provides elastic force for the opening and closing of the fixed jaw 2 and the movable jaw 3, and the torsion spring controls the clamping of the rail bolt between the fixed jaw 2 and the movable jaw 3.

[0024] Or an elastic sheet is arranged between the fixed jaw 2 and the movable jaw 3, one end of the elastic sheet is fixed to the movable jaw 3, the other end of the elastic sheet is connected with the movable jaw 3, the elastic sheet is deformed by the rotation of the movable jaw 3, a reset elastic force is generated, and the elastic sheet controls the clamping of the rail bolt between the fixed jaw 2 and the movable jaw 3.

[0025] A through hole is arranged on the movable jaw 3, a limiting pin is installed in the through hole, the limiting pin is used for limiting the elastic sheet and can be used for installing the torsion spring.

[0026] The self-tightening rail bolt tool with the torsion spring or the elastic sheet, the jaw is in a closed state by default, when the tool is used, the fixed jaw 2 and the movable jaw 3 are opened and are sleeved on the rail bolt, so that the nut is self-tightened and is not loosened.

[0027] The surface of the self-tightening rail bolt tool is coated with rust-proof paint.

[0028] The length of the connecting rod 1 is set according to the working requirement, the longer the connecting rod 1 is, the more labor-saving the installation and dismounting are, and vice versa.

[0029] The connecting rod 1 can be used as a file, so that the polishing effect is increased and the applicability is further improved.

[0030] The connecting rod 1, the fixed jaw 2 and the movable jaw 3 are made of high manganese steel, so that the strength and the service life of the tool are ensured.

[0031] The jaw opening of the self-tightening rail bolt tool is 22mm-44mm, the tool meets the nuts of various types of lines and turnouts, the tool avoids the need to carry various types of wrenches, sleeves and force rods during daily outdoor work, reduces the weight of the tools carried during the work, improves the work efficiency, and is mainly used for tightening or loosening various types of screws such as line joint wires, station wires, insulating joint wires and track gauge rod wires.

[0032] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, any modification, equivalent replacement or improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A tool for self-tightening a track bolt, characterized in that, The utility model relates to a rail bolt clamp, which comprises a connecting rod, a fixed jaw and a movable jaw. The jaw of the fixed jaw is arc-shaped, and the jaw of the C-shaped movable jaw is obtuse-angled.

2. A tool for self-tightening a track bolt according to claim 1, characterized in that The tightening surface of the obtuse-angled jaw and the arc-shaped jaw is provided with a plurality of tooth-shaped protrusions.

3. A tool for self-tightening a track bolt according to claim 1, characterized in that A torsional spring is arranged between the fixed jaw and the movable jaw.

4. A tool for self-tightening a track bolt according to claim 1, characterized in that, The movable jaw is provided with a through hole, and a limiting pin is arranged in the through hole.

5. A tool for self-tightening a track bolt according to claim 4, characterized in that The limiting pin is used for limiting the elastic sheet.

6. A tool for self-tightening a track bolt according to claim 1, characterized in that The end of the connecting rod away from the fixed jaw is a handle end.

7. A tool for self-tightening a track bolt according to claim 1, characterized in that The obtuse-angled jaw is a 110-145° jaw.

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