CN207603084U - Insulator spanner - Google Patents

Abstract

The utility model discloses an insulator fastening wrench, which belongs to the technical field of power tools. The wrench includes a sleeve, and the upper end of the sleeve has a slot matching the shape of the nut. The key is that the wrench also includes an insulating rod and a connecting sleeve. , the lower end of the connecting sleeve is set on the upper end of the insulating rod and fixedly connected with the insulating rod, the upper end of the connecting sleeve is provided with internal threads, the lower end of the sleeve is provided with external threads, and the sleeve is threadedly connected with the connecting sleeve. The bushing is fixed on the insulating pole by using the connecting sleeve, and maintenance personnel can maintain the nuts used to fix the insulator without climbing the pole tower. The structure is simple, the operation is convenient and fast, saving time and effort, and greatly improving work efficiency. The threaded connection between the casing and the connecting sleeve is firm and reliable, and the disassembly and assembly are convenient and quick, saving time and effort.

Description

Insulator tightening wrench

technical field

The utility model belongs to the technical field of electric tools and relates to an insulator fastening wrench.

Background technique

The cross arm is an important part of the pole tower. Its function is to install insulators and fittings to support the wires and lightning conductors and keep them at a certain safe distance according to the regulations. The insulators are used at the ends of the cross arms. The wires that support the wires are easy to shake due to the wind force, and the nuts used to fix the insulators become loose after a long time. In order to prevent the insulators from falling off due to loose nuts, electric maintenance personnel need to check regularly and tighten the loose nuts. During the inspection, maintenance personnel need to climb up and down the pole tower, which is time-consuming and laborious. Moreover, not all nuts on the insulators are loose during inspection and maintenance, but maintenance personnel cannot be sure if they do not climb up to see, so even if the nuts are not loose. Maintenance personnel need to climb up the pole tower to check it, which is time-consuming and labor-intensive, and the work efficiency is low.

Contents of the invention

In order to overcome the defects of the prior art, the utility model designs an insulator fastening wrench. The maintenance personnel can maintain the nuts used to fix the insulator without climbing the pole tower. work efficiency.

The specific technical solution adopted by the utility model is: the insulator tightening wrench includes a sleeve, and the upper end of the sleeve has a slot matching the shape of the nut. The key is: the wrench also includes an insulating rod and a connecting sleeve, The lower end of the connecting sleeve is set on the upper end of the insulating rod and is fixedly connected with the insulating rod. The upper end of the connecting sleeve is provided with internal threads, the lower end of the sleeve is provided with external threads, and the sleeve is threadedly connected with the connecting sleeve.

The casing is a vertical tubular structure.

The sleeve includes an upper fastening part, a lower connecting part, and an inclined part arranged between the upper fastening part and the lower connecting part. Both the upper fastening part and the lower connecting part are vertically arranged, and the upper end of the upper fastening part With a card slot, the lower end of the lower connecting part is provided with an external thread, and the angle α between the inclined part and the lower connecting part is an obtuse angle.

The angle α between the inclined portion and the lower connecting portion is 120°-150°.

The depth of the slot at the upper end of the sleeve is equal to the height of the nut along the axial direction, and the inner diameter of the sleeve below the slot is smaller than the radius of the inscribed circle of the slot.

The connecting sleeve is fixedly connected with the insulating rod by means of screws.

The outer wall of the upper end of the insulating rod is provided with vertically arranged dovetail grooves, the number of dovetail grooves is at least two, all the dovetail grooves are arranged along the circumferential direction, and a raised dovetail groove is arranged on the inner wall of the lower end of the connecting sleeve The connecting sleeve is plugged and fixed with the insulating rod by means of the cooperation of the dovetail strip and the dovetail groove.

The length of described dovetail bar and dovetail groove is equal, all is 4-5cm.

The beneficial effect of the utility model is: the bushing is fixed on the insulating pole by using the connecting sleeve, and the maintenance personnel can maintain the nuts used for fixing the insulator without climbing the pole tower, the structure is simple, the operation is convenient and quick, and time and effort are saved , greatly improving work efficiency. The threaded connection between the casing and the connecting sleeve is firm and reliable, and the disassembly and assembly are convenient and quick, saving time and effort.

Description of drawings

Fig. 1 is a schematic structural view of the first embodiment of the utility model.

Fig. 2 is a schematic structural diagram of the casing in Fig. 1 .

FIG. 3 is a top view of FIG. 1 .

Fig. 4 is a schematic structural diagram of the second embodiment of the present invention.

FIG. 5 is a schematic structural diagram of the casing in FIG. 4 .

In the drawings, 1 represents the sleeve, 1-1 represents the upper fastening part, 1-2 represents the lower connection part, 1-3 represents the inclined part, 2 represents the insulating rod, and 3 represents the connecting sleeve.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in detail:

In a specific embodiment, an insulator tightening wrench includes a sleeve 1, the upper end of which has a slot matching the shape of the nut, and the wrench also includes an insulating rod 2, a connecting sleeve 3, and the lower end of the connecting sleeve 3 Set on the upper end of the insulating rod 2 and fixedly connected with the insulating rod 2, the upper end of the connecting sleeve 3 is provided with an internal thread, the lower end of the sleeve 1 is provided with an external thread, and the sleeve 1 and the connecting sleeve 3 are threaded. The bushing 1 is fixed on the insulating rod 2 by using the connecting sleeve 3, and the maintenance personnel can maintain the nuts used to fix the insulator without climbing the pole tower. efficiency. The sleeve pipe 1 and the connecting sleeve 3 are threadedly connected, the connection is firm and reliable, the disassembly and assembly are convenient and fast, and time and effort are saved. Sleeve 1 is a tubular structure made of heating pipes, which is convenient to obtain materials and low in cost.

Embodiment 1, as shown in Fig. 1, Fig. 2 and Fig. 3, the casing 1 is a vertical tubular structure with a simple structure and easy and convenient manufacture. The insulating rod 2 is a telescopic rod, and the length of the insulating rod 2 can be adjusted according to actual needs to meet the fastening requirements of insulators of different heights. The end faces of existing nuts are generally regular hexagons, so the end faces of the clamping grooves are regular hexagons.

As a further improvement to the utility model, the depth of the groove at the upper end of the sleeve 1 is equal to the height of the nut in the axial direction, and the inner diameter of the sleeve 1 below the groove is smaller than the radius of the inscribed circle in the groove. In this way, a convex edge will be formed under the card slot, as shown in Figure 3, when the sleeve 1 is put on the nut, the convex edge can function as a limit, reminding the maintenance personnel that the wrench has been inserted in place, and at the same time can increase The contact area between the large nut and the bushing 1 makes the connection more firm and reliable.

As a further improvement of the utility model, the connecting sleeve 3 is fixedly connected with the insulating rod 2 by means of screws, and the connection is firm and reliable. The connecting sleeve 3 and the insulating rod 2 can also be inserted. For example, the outer wall of the upper end of the insulating rod 2 is provided with vertically arranged dovetail grooves. The number of dovetail grooves is at least two, and all the dovetail grooves are arranged along the circumferential direction. , the inner wall of the lower end of the connecting sleeve 3 is provided with a raised dovetail strip, and the connecting sleeve 3 is plugged and fixed with the insulating rod 2 by means of the cooperation of the dovetail strip and the dovetail groove, so that the connecting parts cannot be seen from the outside, and the whole is more neat and beautiful , and the disassembly and assembly are convenient and fast, saving time and effort, and no special tools are required.

As a further improvement to the utility model, the number of dovetail strips and dovetail grooves is equal, three, and the three dovetail strips are evenly arranged along the circumferential direction of the inner wall of the connecting sleeve 3, which has better stability. The length of the dovetail bar and the dovetail groove is equal, all 4-5cm and preferably 4.6cm, so that there is a large enough contact area between the insulating rod 2 and the connecting sleeve 3, and there is a large enough space between the dovetail bar and the dovetail groove. The contact area is larger, and the plug connection is more firm and reliable.

Embodiment 2, as shown in Figure 4 and Figure 5, is different from Embodiment 1 in that the sleeve 1 includes an upper fastening part 1-1, a lower connecting part 1-2, and a The inclined part 1-3 between the lower connecting part 1-2, the upper fastening part 1-1 and the lower connecting part 1-2 are all vertically arranged, and the upper end of the upper fastening part 1-1 has a card slot, and the lower connecting part The lower end of the part 1-2 is provided with an external thread, and the angle α between the inclined part 1-3 and the lower connecting part 1-2 is an obtuse angle. When there are other components directly under the nut, the wrench shown in Example 1 cannot be inserted into the nut for rotation operation, but the wrench with the inclined part 1-3 can use the inclined part 1-3 to bypass the parts directly under the nut The position is so that the upper fastening part 1-1 can still be inserted into the nut, and the insulating rod 2 deviates from the position directly below the nut, and the wrench can still be rotated, which can better meet the needs of maintenance personnel. . In order to save more effort when rotating, the angle α between the inclined part 1-3 and the lower connecting part 1-2 is set to 120°-150°, preferably 140°.

Claims (8)

1. Insulator tightening wrench, including a sleeve (1), the upper end of the sleeve (1) has a slot that matches the shape of the nut, and it is characterized in that: the wrench also includes an insulating rod (2), a connecting sleeve (3), the lower end of the connecting sleeve (3) is set on the upper end of the insulating rod (2) and fixedly connected with the insulating rod (2). The upper end of the connecting sleeve (3) is provided with internal threads, and the lower end of the sleeve (1) is provided with External thread, sleeve pipe (1) is threadedly connected with connecting sleeve (3). 2. The insulator fastening wrench according to claim 1, characterized in that: the sleeve (1) is a vertically arranged tubular structure. 3. The insulator fastening wrench according to claim 1, characterized in that: the sleeve (1) includes an upper fastening part (1-1), a lower connecting part (1-2), and a The inclined part (1-3) between the fastening part (1-1) and the lower connecting part (1-2), the upper fastening part (1-1) and the lower connecting part (1-2) are all arranged vertically , the upper end of the upper fastening part (1-1) has a card slot, the lower end of the lower connecting part (1-2) is provided with external threads, and the clip between the inclined part (1-3) and the lower connecting part (1-2) Angle α is an obtuse angle. 4. The insulator fastening wrench according to claim 3, characterized in that: the angle α between the inclined portion (1-3) and the lower connecting portion (1-2) is 120°-150°. 5. The insulator tightening wrench according to claim 1, characterized in that: the depth of the groove at the upper end of the sleeve (1) is equal to the height of the nut along the axial direction, and the depth of the sleeve (1) located below the groove The inner diameter is smaller than the radius of the inscribed circle of the slot. 6. The insulator fastening wrench according to claim 1, characterized in that: the connecting sleeve (3) is fixedly connected to the insulating rod (2) by means of screws. 7. The insulator tightening wrench according to claim 1, characterized in that: the outer wall of the upper end of the insulating rod (2) is provided with vertically arranged dovetail grooves, the number of dovetail grooves is at least two, and all The dovetail grooves are arranged along the circumferential direction, and the inner wall of the lower end of the connecting sleeve (3) is provided with a raised dovetail bar, and the connecting sleeve (3) is plugged and fixed with the insulating rod (2) by means of the dovetail bar and the dovetail groove. 8. The insulator fastening wrench according to claim 7, characterized in that: the dovetail strip and the dovetail groove have the same length, both being 4-5cm.