CN203019275U - Insulation torque wrench for fastening antivibrator bolts in electrified state - Google Patents

Abstract

The utility model discloses an insulated torque wrench for fastening bolts of a live anti-vibration device, which comprises a sleeve with an inner hexagonal cavity and an insulating disk with a handle for driving the sleeve to rotate. The outer surface of the middle part of the sleeve is provided with a Ratchet, the outer surface of the ratchet is fixedly sleeved with a ring-shaped insulating washer, and an insulating disc is respectively installed on both sides of the insulating washer; the insulating disc is divided into a driving insulating disc and a supporting insulating disc, and the driving insulating disc is hinged with a The pawl matched with the ratchet, the driving insulating disc and the supporting insulating disc are movably connected with the insulating washer and the casing; the handles of the driving insulating disc and the supporting insulating disc are connected with extended insulating arms. The utility model can work with live electricity, avoids many inconveniences caused by power outages to users, is easy to operate, has high safety, and ensures the reliable operation of the power system and the personal safety of operators.

Description

Insulated torque wrench for live fastening shock absorber bolts

technical field

The utility model relates to a tool used in the electric power construction field, in particular to a torque wrench.

Background technique

In order to prevent the transmission line from resonating due to the breeze, which will cause accidents such as fatigue and broken strands of the transmission line, anti-vibration devices are installed on the power transmission line. Because the anti-vibration device is exposed to the field for a long time, it is easily affected by various factors, so the bolts of the anti-vibration device are prone to loosening. When the bolts of the anti-vibration device are not fastened in time, it is easy to cause the anti-vibration device to deviate from the original installation position and cause the phenomenon of displacement. Once the anti-vibration device moves, it will not only fail to prevent vibration, but will also cause new hazards. For example: the transmission line vibrates and dances, and the end of the line is fatigued and broken; when the anti-vibration device moves to the vicinity of the clamp, it will also increase the wear of the wire at the exit of the clamp; the final consequence of the above situation will be a power outage, thus It will endanger the safe operation of the power system and even cause safety accidents. Therefore, during the line inspection, it is necessary to tighten the loose nut in time or recover the anti-vibration device that has moved. At present, ordinary casing wrenches are often used to fasten the anti-vibration nuts, which can only be carried out under the condition of power failure, which will cause many inconveniences such as power failure and production stoppage to power users. Moreover, when high-altitude operations are required, tools such as flying cars are required, which is very risky. Therefore, considering three aspects of safety, economy and reliability, it is necessary to develop a vibration isolator bolt fastening tool under the live working situation.

Contents of the invention

The technical problem to be solved by the utility model is to provide a convenient and safe torque wrench for fastening the bolts of the anti-vibration device with electricity.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: an insulated torque wrench for fastening the shock absorber bolts with electricity, including a sleeve with an inner hexagonal cavity and a handle-mounted insulating wrench that drives the sleeve to rotate. A ratchet is provided on the outer surface of the middle part of the bushing, and a ring-shaped insulating washer is fixedly sleeved outside the ratchet, and an insulating disc is respectively installed on both sides of the insulating washer; the insulating disc is divided into a driving insulating disc and a supporting insulating disc. The driving insulating disc is hinged with ratchet pawls that cooperate with the ratchet, and the driving insulating disc, the supporting insulating disc are movably connected with the insulating washer and the bushing; the handles of the driving insulating disc and the supporting insulating disc are connected with extended insulating arms .

The further improvement of the specific structure of the utility model lies in that: the side of the drive insulation disk and the support insulation disk connected to the insulation gasket is provided with a stepped circular groove matching the insulation disk, and there are three ratchets, which are evenly distributed on the drive insulation disk. In the stepped circular groove of the disc, the thickness of the ratchet is consistent with the depth of the stepped circular groove.

The further improvement of the specific structure of the utility model lies in that: the sleeves on the outer sides of the drive insulation disk and the support insulation disk are provided with spring clips that are clamped in the slots on the outer surface of the sleeves.

The further improvement of the specific structure of the utility model lies in that: the driving insulating disk and the extending insulating arm are hinged through hinge shafts; the supporting insulating disk and the extending insulating arm are fixedly connected.

Due to the adoption of the above-mentioned technical scheme, the technical progress achieved by the utility model lies in that the utility model can fasten the anti-vibration bolts under the electrified state, and the operation is convenient, safe and reliable, and solves the problem of fastening the anti-vibration bolts. The problem of power failure operation eliminates the movement of the shock absorber caused by loose bolts of the shock absorber, which eventually leads to problems such as line wear and power outages, ensuring the reliable operation of the power system; and greatly improving the safety of operators. The time is also greatly shortened, saving manpower and material resources.

The utility model has three pawls, which are evenly distributed in the stepped circular groove. The height of the pawl is consistent with the height of the stepped circular groove, which can better realize the driving and braking effect of the ratchet mechanism. The height of the groove is consistent, which reduces the resistance when the pawl drives the ratchet to rotate.

The utility model utilizes a spring clamp to connect the insulating disc, the insulating washer and the casing into a whole, so as to prevent the insulating disc from running out of position when the live fastening anti-vibration device bolt insulating torque wrench is used, thereby making the ratchet and the ratchet not tightly occluded. The problem that ultimately makes torque wrenches useless.

The utility model has an extended insulating arm connected to the handle-shaped part of the driving insulating disk and the supporting insulating disk, which can greatly extend the live working distance, provide a sufficient safety distance for live working, and further improve the safety factor during live working. Moreover, the drive insulation disc and the extension insulation arm are hingedly connected, and the casing wrench can be driven to rotate by pulling the extension insulation arm, which is more convenient to use.

Description of drawings

Fig. 1 is a schematic diagram of the main view structure of the utility model;

Fig. 2 is a schematic view of the structure of the utility model;

Fig. 3 is a schematic diagram of the cross-sectional structure of A-A in Fig. 1 of the utility model.

In the figure: 1. Extended insulating arm, 2. Hinge shaft, 3. Insulating disc, 3-A, Rotating insulating disc, 3-B, Supporting insulating disc, 3-1, Step circular groove, 3-2, Handle, 4 , Sleeve, 4-1, ratchet, 4-2, pawl, 4-3, inner hexagon cavity, 4-4, draw-in slot, 5, insulating washer, 6, spring clamp.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

An insulated torque wrench for fastening anti-vibration bolts with electricity, including a sleeve 4, the inner hole of which is an inner hexagonal cavity 4-3 that matches the nut of the anti-vibration bolt, and the outer middle of the sleeve 4 is There is a ratchet 4-1 on the surface, the diameter of the ratchet 4-1 is consistent with the outer diameter of the casing 4, and the outer surface of the ratchet 4-1 is fixedly sleeved with a ring-shaped insulating washer 5, and the thickness of the insulating washer 5 is the same as that of the teeth of the ratchet 4-1. The thickness in the vertical direction is consistent, and the two sides of the insulating washer 5 are respectively equipped with an insulating disk 3 with a handle 3-2, and the insulating disk 3 is movably connected with the insulating washer 5 and the casing 4. The insulating disk 3 is divided into a rotatable driving insulating disk 3-A and a supporting insulating disk 3-B, and the driving insulating disk 3-A and the supporting insulating disk 3-B are opened on the side where the insulating washer 5 is connected. There is a stepped circular groove 3-1 matched with the insulating disk 3, the outer diameter of the insulating washer 5 is consistent with the inner diameter of the stepped circular groove 3-1, and the driving insulating disk 3-A and the supporting insulating disk 3-B are snap-fitted on the insulating washer 5 sides. The stepped circular groove 3-1 of the drive insulating disc 3-A is hinged with a ratchet 4-2 cooperating with the ratchet 4-1, and there are three pawls 4-2, which are evenly distributed in the stepped circular groove 3-1 , the thickness of the ratchet 4-2 is consistent with the depth of the stepped circular groove 3-1. The handle 3-2 of the driving insulating disc 3-A and the supporting insulating disc 3-B are respectively connected to an extended insulating arm 1, and the handle 3-2 of the driving insulating disc 3-A is connected to the extending insulating arm 1 through a hinge shaft 2 hinged; the handle 3-2 of the supporting insulating disc 3-B is fixedly connected with the extension insulating arm 1. On the outer surfaces of the sleeves 4 on both sides of the drive insulating disk 3-A and the supporting insulating disk 3-B, a locking groove 4-4 is provided, and a spring clip 6 is clamped in the locking groove 4-4.

Buckle the inner hexagonal cavity 4-3 of the casing wrench on the loose nut, push and pull the extended insulating arm 1 hinged on the driving insulating plate 3-A, and the rotating casing wrench can be driven to rotate in one direction to achieve fastening The purpose of the shock absorber bolt.

Claims (4)

1. An insulated torque wrench for tightening anti-vibration device bolts with electricity, characterized in that: it includes a sleeve (4) with an inner hexagonal cavity (4-3) and a handle ( 3-2) the insulating disk (3), the outer surface of the middle part of the casing (4) is provided with a ratchet (4-1), and the outer surface of the ratchet (4-1) is fixedly sleeved with a ring-shaped insulating washer (5) , install an insulating disk (3) on both sides of the insulating washer (5); the insulating disk (3) is divided into a driving insulating disk (3-A) and a supporting insulating disk (3-B), and the driving insulating disk (3-B) The disc (3-A) is hinged with a ratchet (4-2) that matches the ratchet (4-1), drives the insulating disc (3-A), supports the insulating disc (3-B) and the insulating washer (5) and The bushing (4) is flexibly connected; the handle (3-2) of the driving insulating disc (3-A) and the supporting insulating disc (3-B) is connected with an extended insulating arm (1). the 2. The insulated torque wrench for live fastening vibration isolator bolts according to claim 1, characterized in that: the driving insulating disc (3-A) and the supporting insulating disc (3-B) are in phase with the insulating washer (5) There are stepped circular grooves (3-1) on the connected side to match the insulating disc (3), and there are three pawls (4-2), which are evenly distributed in the stepped circular grooves of the driving insulating disc (3-A). In (3-1), the thickness of the ratchet (4-2) is consistent with the depth of the stepped circular groove (3-1). the 3. The insulated torque wrench for live fastening vibration isolator bolts according to any one of claims 1 or 2, characterized in that: the drive insulating disc (3-A) and the outer side of the supporting insulating disc (3-B) The sleeve (4) is provided with a spring clamp (6) which is clamped in the groove (4-4) on the outer surface of the sleeve (4). the 4. The insulated torque wrench for live fastening vibration isolator bolts according to claim 1, characterized in that: the driving insulating disc (3-A) is hinged to the extended insulating arm (1) through a hinge shaft (2) ; The supporting insulating disc (3-B) is fixedly connected with the extended insulating arm (1). the

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