CN208206000U - A kind of grounding-for-lightning device is from windup-degree measuring instrument - Google Patents

Abstract

The utility model discloses a self-torsion angle measuring instrument for a lightning protection grounding device, which comprises a half-circle meter, a movable positioning plate, an insulating rod and an insulating pull rope. The middle part of the movable positioning plate is fixed to the eye hole at the center of the semicircle, and the lengths of the arms at both ends of the movable positioning plate are greater than the radius of the semicircle, and the movable positioning plate is located between the outer circle and the diameter of the semicircle through the eye. The hole is connected with an insulating stay cord, and the other end of the insulating stay cord is connected with an insulating stay plate after bypassing a fixed pulley fixed on the insulating rod. The lightning protection grounding device self-torsion angle measuring instrument provided by the utility model enables the operator to use the tool to measure the self-torsion angle of the lightning protection grounding device and the self-torsion of the grounding ring without directly contacting the overhead wire with hands. Angle, to make preparations for adjusting the torsion angle of the lightning protection electric test grounding device and the self-twist angle of the electric test ground ring.

Description

A self-torsion angle measuring instrument for lightning protection and grounding device

technical field

The utility model relates to the technical field of lightning protection and grounding devices, in particular to a self-torsion angle measuring instrument for lightning protection and grounding devices.

Background technique

The discharge distance of lightning protection and grounding devices for 10kV overhead lines (such as arc-proof clamps, arc-strike rods, lightning-proof grounding rings, arc-proof fittings, etc.) If the distance between the lightning protection and electrical testing grounding device is not perpendicular to the ground, the discharge distance will be increased, and if it is too large, the lightning protection and electrical testing grounding device will lose its protective line function.

During the short-circuit fault process of 10kV insulated overhead lines, there will be mutual attraction or mutual repulsion electromotive forces between the conductors, and the conductors will be twisted and deformed. Some torsional deformations exceed the range of elastic deformation, and cannot return to their original shape when the electromotive force disappears. This phenomenon causes the lightning protection grounding device installed on the wire to deflect around the wire itself, and cannot return to the vertical state with the ground, which increases the actual distance between the lightning protection grounding device and the grounding body on the pole.

In order to reset the reversed lightning protection and electrical testing grounding device (ring), various tools such as live elastic lightning protection and electrical testing grounding device (ring) and wire clamp wrench have been developed successively. If a kind of lightning protection (electricity test) grounding device self-torsion angle measuring instrument is developed again, and it is used to realize the self-torsion angle measurement of lightning protection electric test grounding device (ring), it solves the problem of lightning protection electric test grounding device (ring) , The self-twisting angle of the electrical inspection grounding ring resets the problem without power failure, to eliminate the influence of the increased discharge distance caused by the self-twisting of the lightning protection electrical inspection grounding device (ring), and to eliminate the influence of the external torque caused by the self-twisting of the electrical inspection grounding ring on the safety of the wire , Improve the existing lightning protection level and safety level of overhead lines.

Utility model content

The purpose of this utility model is to provide a lightning protection grounding device self-torsion angle measuring instrument to solve the above-mentioned problems in the prior art, so that the operator can measure the lightning protection without directly contacting the overhead line with the help of the tool. The self-twisting angle of the electric test grounding device and the self-twisting angle of the electric test grounding ring are prepared to adjust the torsion angle of the lightning protection electric test grounding device and the self-twisting angle of the electric test grounding ring.

In order to achieve the above object, the utility model provides the following scheme: the utility model provides a self-torsion angle measuring instrument for a lightning protection grounding device, including a semicircle instrument, a swimming positioning plate, an insulating rod and an insulating pull rope, and the semicircle instrument passes through The half-circle instrument fixed bracket is installed on the upper fixed eyehole of described insulation rod, and the middle part of described swimming positioning plate is fixed with the eyehole at the center of circle of described semicircle instrument, and the length of the two ends arm of described swimming positioning plate is equal to greater than the radius of the semicircle, the floating positioning plate is located between the outer circle and the diameter of the semicircle and is connected with the insulating pull rope through the eyelet, and the other end of the insulating pull rope is fixed on the The fixed pulley on the insulating rod is connected with an insulating pull plate behind it.

Optionally, black solid lines are engraved on the swimming positioning plate.

Optionally, the fixed pulley is fixed on a fixed pulley fixing bracket on the insulating rod.

Optionally, a first limit hoop and a second limit hoop are sequentially arranged on the insulating rod from top to bottom, and the insulating pull plate passes through the first limit hoop and the second limit hoop. Position hoop for fixed limit.

Optionally, a supporting plate is fixed at the bottom end of the insulating rod.

Optionally, a level is fixed on the insulating rod at the top of the supporting plate.

Optionally, the bottom end of the insulating rod is fixed with a protractor fixing clip, and the protractor is fixed on the protractor fixing clip.

Optionally, the protrusion at the bottom end of the insulating pull plate is used in conjunction with the radian.

Compared with the prior art, the utility model has achieved the following technical effects:

The self-torsion angle measuring instrument of the lightning protection grounding device in the utility model can safely measure the self-torsion angle of the lightning protection (electricity inspection) grounding device and the self-torsion angle of the electric inspection grounding ring when the overhead line is charged, so as to ensure the safety of personnel. Keep away from electric shock hazard.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only the present invention. For some embodiments of the present invention, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

Fig. 1 is a schematic structural diagram of a self-torsion angle measuring instrument of a lightning protection grounding device according to Embodiment 1 of the present invention;

Figures 2a and 2b are three views of the semicircle;

Figures 3a and 3b are schematic diagrams of the semicircular instrument fixing bracket;

Fig. 4 is the schematic diagram of swimming positioning plate;

Fig. 5 is a schematic diagram of a vertical drawing plate;

Fig. 6 is three views of pallet;

Fig. 7 is three views of fixed pulley;

Fig. 8 is a three-view view of the first limit hoop;

Fig. 9 is a three-view view of the second limit hoop;

Figure 10 is a three-view view of the fixed pulley fixed bracket;

Figures 11a and 11b are schematic diagrams of insulating rods;

Fig. 12 is a structural schematic diagram of a self-torsion angle measuring instrument of a lightning protection grounding device according to Embodiment 2 of the utility model;

Fig. 13 is three views of the radian ruler fixing clamp;

Fig. 14 is the schematic diagram of radian ruler;

Among them, 1 semicircle instrument; 2 semicircle instrument fixed between; 3 swimming positioning plate; 4 fixed pulley fixed support; 41 round tube entity on the support; Hole; 44 eyelets on the circular tube entity; 5 the first limit hoop; 6 the second limit hoop; 61 the square tubular entity of the limit hoop; 62 the circular tubular entity of the limit hoop; 63 screws; 64 spring; 65 bullet; 66 built-in nut; 67 special-shaped entity; 7 insulating pull plate; 8 supporting plate; 81 square tubular entity of supporting plate; ; 9 insulating stay rope; 10 level; 11 fixed pulley; 12 solid line; 13 hinged screw; 14 insulating rod; 1401 upper plug; 1402 lower plug; The fixing eye of the bracket on the insulating rod; 1405 the fixing eye of the first limit hoop on the insulating rod; 1406 the fixing eye of the second limiting hoop on the insulating rod; 1407 the fixing eye of the supporting plate on the insulating rod ; 15 the connection screw of semicircle instrument and its support; 16 radian ruler fixed clip; 161 the circular tube entity of fixed clamp; 162 the angular entity of fixed clamp; 163 the eye hole on the angular entity; Eyelet; 17 radian ruler; 18 actual electric test grounding device (ring) on site.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The purpose of this utility model is to provide a lightning protection grounding device self-torsion angle measuring instrument to solve the above-mentioned problems in the prior art, so that the operator can measure the lightning protection without directly contacting the overhead line with the help of the tool. The self-twisting angle of the electrical inspection grounding device and the self-twisting angle of the electrical inspection grounding ring are prepared to adjust the torsion angle of the lightning protection electrical inspection grounding device and the self-twisting angle of the electrical inspection grounding ring.

The self-torsion angle measuring instrument for lightning protection and grounding device provided by the utility model includes a half-circle meter, a swimming positioning plate, an insulating rod and an insulating pull rope. The middle part of the positioning plate is fixed to the eyehole at the center of the semicircle, and the length of the arms at both ends of the movable positioning plate is greater than the radius of the semicircle, and the movable positioning plate is located between the outer circle and the diameter of the semicircle through the eyehole An insulating stay rope is connected, and the other end of the insulating stay rope is connected with an insulating pull plate after bypassing a fixed pulley fixed on the insulating rod.

In order to make the above purpose, features and advantages of the utility model more obvious and understandable, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Please refer to Figures 1-14, wherein Figure 1 is a schematic structural diagram of a self-torsion angle measuring instrument for a lightning protection grounding device in Embodiment 1 of the present utility model; Figures 2a and 2b are three views of the semicircle instrument; Figures 3a and 3b are the semicircle instrument Fig. 4 is a schematic diagram of a floating positioning plate; Fig. 5 is a schematic diagram of a vertical pull plate; Fig. 6 is a three-view view of a supporting plate; Fig. 7 is a three-view view of a fixed pulley; Fig. 8 is a three-view view of the first limit hoop; 9 is the three views of the second limit hoop; Figure 10 is the three views of the fixed pulley fixed bracket; Figures 11a and 11b are schematic diagrams of insulating rods; Schematic diagram of the structure of the measuring instrument; Figure 13 is a three-view view of the fixing clamp of the arc scale; Figure 14 is a schematic diagram of the arc scale.

Embodiment one

As shown in Figure 1-11, this embodiment provides a lightning protection (electricity inspection) grounding device self-torsion angle measuring instrument, including a semicircle meter 1, a semicircle meter fixed bracket 2, a floating positioning plate 3, and a fixed pulley fixed bracket 4 , the first limit hoop 5, the second limit hoop 6, the insulating pull plate 7, the supporting plate 8, the insulating pull rope 9, the level 10, the fixed pulley 11, the solid line 12 on the swimming positioning plate, the swimming The hinge bolt 13 and insulating rod 14 of positioning plate 3 and semicircle instrument 1, wherein,

In addition to the numbers and dimension lines, the semicircle 1 is also provided with eyelets connected with the movable positioning plate 3, the semicircle fixed bracket 2 and the insulating rod 14 respectively. on the radius. The semicircle fixed bracket 2 is used to fix the semicircle 1 and increase the anti-external strength of the semicircle 1. The vertical radius of the semicircle fixed bracket 2 is provided with connecting eyelets with the semicircle 1 and the insulating rod 14. The middle part of the floating positioning plate 3 is fixed with the eyelet at the center of the semicircle instrument 1, and the length of the arms at both ends of the floating positioning plate 3 is greater than the radius of the semicircle instrument 1; Between the circle and the diameter, an insulating stay cord 9 is connected through an eyelet, and the other end of the insulating stay cord 9 walks around the fixed pulley 11 fixed on the insulating rod 14 and is connected with an insulating stay pulley 7 .

Fixed pulley support 4, comprises the circular tube entity 41 on the support, the square tube entity 42 on the support, the eyelet 43 on the square tube on the support, the eyelet 44 on the circular tube entity.

The first limit hoop 6 of the vertical pull plate includes a square tubular entity 61 of the limit hoop, a round tubular entity 62 of the limit hoop, a screw 63 for controlling the moving position of the vertical pull plate, and a screw 63 for controlling the moving position of the vertical pull plate. Spring 64, the bullet head 65 that controls the moving position of the vertical pull plate, the built-in nut 66 matched with the screw, the special-shaped entity 67 that contains the built-in space for storing the screw, the spring and the bullet head. The combination effect of screw 63, spring 64, bullet 65, built-in nut 66, special-shaped entity 67 is to give vertical insulation pull plate 7 a little pressure, keeps vertical insulation pull plate 7 to move stably.

Vertical insulating pull plate 7, its effect is to control the length of stay cord and its position, to ensure that the operator's body keeps a safe distance from the electrified body.

The supporting plate 8 of the vertical pull plate and the level 10 includes a square cylindrical entity 81 of the supporting plate, a circular tubular entity 82 of the supporting plate, and a rectangular plate 83 on the square cylindrical entity.

Insulated stay cord 9, its effect is to drive and control the swimming positioning plate 3 to rotate on the semicircle instrument 1, so that the black solid line on the positioning plate indicates the angle value.

Level instrument 10, its effect is to make the operator monitor the situation that insulating rod 14 maintains a vertical angle with the ground. During the measurement, once it is found that the level bubble is not in the middle position, adjust the angle between the insulating rod 14 and the ground in time.

Fixed pulley 11, its effect is to change the stressed direction of insulating stay rope 9, is convenient to the operator's indirect drive swimming positioning plate 3 and finishes measuring.

The solid line 12 of black (or other colors) on the swimming positioning plate 3, its effect is the indicator needle, points out the angle value on the semicircle instrument during measurement.

The hinged bolt 13 of the floating positioning plate 3 and the semicircle instrument 1 is to connect the floating positioning plate 3 and the semicircle instrument 1, and keep the traveling positioning plate 3 to have a rotation function on the semicircle instrument 1.

Insulating rod 14 comprises upper plug 1401, lower plug 1402, the fixed eyelet 1403 of the semicircle instrument on the insulating rod, the fixed eyelet 1404 of the fixed pulley support on the insulating rod, the first limit hoop on the insulating rod The fixing eyelet 1405, the fixing eyelet 1406 of the second limit hoop on the insulating rod, and the fixing eyelet 1407 of the supporting plate on the insulating rod. The upper and lower plugs are used to prevent moisture and prevent the insulating hollow rod from being damaged by external force.

There are 3 connecting screws 15 between the semicircle instrument and its support. Its function is to keep the semicircle connected firmly with its bracket.

Preferably, each component of the tool is made of epoxy fiberglass or other insulating materials.

As shown in Figures 1 to 11, the working process of the self-torsion angle measuring instrument using a lightning protection (electricity inspection) grounding device of Embodiment 1 is as follows:

When the lightning protection electrical inspection grounding device (ring) self-torsion angle is less than 90°:

The operator holds the lower end of the insulating rod 14, first makes the movable positioning plate 3 of the tool close to point at 90°, pulls the insulating pull plate 7 and the insulating pull rope 9, as shown in Figure 1, adjusts the movable positioning plate 3 to make them parallel The actual lightning protection and electrical testing grounding device (ring) 18 on site, and observe the bubble of the level 10 to make it point to the horizontal position. ) at 18 o'clock, read out the angle β between the mobile positioning plate 3 and the semicircle 1, and the angle β less than 90° is the obtained angle.

When the self-torsion angle of the lightning protection electrical inspection grounding device (ring) is greater than 90°:

The operator holds the lower end of the insulating rod 14, first makes the movable positioning plate 3 of the tool close to point at 90°, adjusts and pulls the insulating pull plate 7 and the insulating pull rope 9 downwards, and adjusts the movable positioning plate 3 to make it parallel to the actual on-site Lightning protection and electrical testing grounding device (ring) 18, and observe the air bubble of level 10 to make it point to the horizontal position, when the bubble points to the horizontal position and the floating positioning plate 3 is parallel to the actual lightning protection and electrical testing grounding device (ring) 18 on site , read out the angle β between the mobile positioning plate 3 and the semicircle 1, and the angle β greater than 90° is the obtained angle.

Embodiment two

As shown in Figures 11-14, this embodiment provides a self-torsion angle measuring instrument for a lightning protection grounding device. On the basis of Embodiment 1, the angle measuring instrument of this embodiment also has the following characteristics:

Also include radian ruler 17, radian ruler fixing clip 16.

When the solid line 12 on the floating positioning plate 3 is used as a pointer to point to a specific torsion angle, the convex body of the vertical insulating pull plate 7 also indicates the same torsion angle through the scale on the radian 17 .

The fixed clip 16 of the radian includes a circular pipe entity 161 of the fixed clip, an angular entity 162 of the fixed clip, an eyelet 163 on the angular entity, and an eyelet 164 on the circular tube entity.

In the utility model, specific examples have been used to illustrate the principle and implementation of the utility model, and the descriptions of the above examples are only used to help understand the method of the utility model and its core idea; meanwhile, for those of ordinary skill in the art , according to the idea of the utility model, there will be changes in the specific implementation and application range. To sum up, the contents of this specification should not be understood as limiting the utility model.

Claims (8)

1. a kind of grounding-for-lightning device is from windup-degree measuring instrument, it is characterised in that: including graphometer, travelling positioning plate, insulation Bar and insulation drawstring, the graphometer is mounted on the fixed eyelet in top of the insulating bar by the fixed bracket of graphometer, described The middle part of travelling positioning plate and the center point eyelet of the graphometer are fixed, and the length of two end arms of the travelling positioning plate is equal Greater than the radius of the graphometer, it is located between the outer circle and diameter of the graphometer on the travelling positioning plate and is connected by eyelet It is connected to the insulation drawstring, the other end of the insulation drawstring is connected with absolutely after bypassing the fixed pulley being fixed on the insulating bar Edge pulling plate.

2. grounding-for-lightning device according to claim 1 is from windup-degree measuring instrument, it is characterised in that: the travelling positioning Entity lines are carved on plate.

3. grounding-for-lightning device according to claim 1 is from windup-degree measuring instrument, it is characterised in that: the fixed pulley is solid It is scheduled on the fixed bracket of the fixed pulley on the insulating bar.

4. grounding-for-lightning device according to claim 1 is from windup-degree measuring instrument, it is characterised in that: on the insulating bar It is also disposed with the first limit anchor ear and the second limit anchor ear from top to bottom, the insulation pulling plate is limited by described first Limit is fixed in anchor ear and the second limit anchor ear.

5. grounding-for-lightning device according to claim 1 is from windup-degree measuring instrument, it is characterised in that: the insulating bar Bottom end is fixed with supporting plate.

6. grounding-for-lightning device according to claim 5 is from windup-degree measuring instrument, it is characterised in that: on the insulating bar Level is further fixed on positioned at the supporting plate top.

7. grounding-for-lightning device according to claim 1 is from windup-degree measuring instrument, it is characterised in that: the insulating bar The fixed cambered ruler fixing hoop in bottom end, radian ruler are fixed on the radian ruler fixing hoop.

8. grounding-for-lightning device according to claim 7 is from windup-degree measuring instrument, it is characterised in that: the insulation pulling plate The convex body of bottom end is used in combination with the radian ruler.