CN108599003B - Overhead line electrical inspection grounding ring clamp shield live installation tool - Google Patents

Abstract

The invention discloses an overhead line electricity-testing grounding loop clamp shield mounting tool, which comprises an insulating hollow rod, wherein the upper end of the insulating hollow rod is penetrated with a diagonal draw bar; the shield storage device comprises a left shield storage device and a right shield storage device which are hinged, the left shield storage device is fixedly connected with the insulating hollow rod, and the right shield storage device is fixedly connected with the connecting bracket; the insulation pull rod is positioned in the insulation hollow rod, the upper end of the insulation pull rod is fixedly connected with a pull rope, and the pull rope is fixedly connected with the diagonal draw rod hinged with the connecting bracket; the insulating pull rod is freely sleeved with a lower limiting part, the lower limiting part is axially fixed on the insulating hollow rod, and the insulating pull rod is fixedly provided with an upper limiting part; two ends of the first elastic element are respectively connected to the diagonal draw bar and the connecting bracket; the second elastic element is sleeved on the insulating pull rod and is positioned between the upper limiting piece and the lower limiting piece; the insulating handle freely wears to locate the lower extreme of insulating hollow pole, and insulating pull rod's lower extreme is articulated with insulating handle, and insulating handle's head end articulates in a fixed first clamp that sets up on insulating hollow pole through first pivot.

Description

Overhead line electrical inspection grounding ring clamp shield live installation tool

technical field

The invention relates to an overhead line maintenance tool, in particular to a live installation tool for an overhead line electric inspection grounding loop clamp shield.

Background technique

The two ends of the electrical test grounding ring are exposed respectively, and the exposed part of one end is connected with the stripped overhead wire using a connecting block, and the exposed part of the other end is used for connecting the grounding wire clamp during safety inspection.

In the current medium and low voltage lines of the urban distribution network (that is, the voltage level of 10 kV and below), overhead insulated wires are generally used to lay. The grounding protection line is set, which requires that the grounding wire clamp and the wire must be in reliable contact when the grounding wire is hung, and the insulated wire cannot be hung with the grounding wire, so the grounding ring for electrical inspection is generally installed on the insulated overhead line. When it is verified that the line is dead.

During the short-circuit fault of 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 electrical testing grounding ring installed on the wire to deflect around the wire itself, and cannot return to the vertical state with the ground, which not only affects the appearance of the line, but also adds additional torque to the wire. When the line is powered off and the ground wire is added, the torque damage to the wire is greater.

In order to reset the twisted grounding ring for electrical testing, it is necessary to provide an installation tool for the clamp shield of the grounding ring for electrical testing of overhead lines, which can be used to install the insulating shield of the clamp for the grounding ring for electrical testing with electricity, and to eliminate the torsion of the grounding ring for electrical testing The influence of the generated torque on the safe operation of the conductor improves the safety of the overhead line.

Contents of the invention

The purpose of the present invention is to provide an installation tool for the wire clip shield of the electrical inspection grounding ring of overhead lines, to solve the problem that the electrical inspection grounding ring can only be reset when the power is off, to realize the live installation of the wire clamp insulation shield of the electrical inspection grounding ring, and to eliminate The influence of the torque generated by the torsion of the electrical grounding ring on the safe operation of the conductor improves the safety of the overhead line.

To achieve the above object, the present invention provides the following scheme:

The invention provides a tool for installing the shield of the grounding loop clip for the electrical inspection of overhead lines, which includes an insulating hollow rod, a shield storage device, an insulating pull rod, a first elastic element, a second elastic element and an insulating handle. The upper end of the insulating hollow rod is free A diagonal tie rod is worn; the shield storage device includes a left shield storage device and a right shield storage device, one end of the left shield storage device is fixedly connected to the insulating hollow rod, and the left shield storage device The other end of the shield storage device is hinged to one end of the right shield storage device, and the other end of the right shield storage device is fixedly connected with a connecting bracket; the insulating pull rod is located in the insulating hollow rod and along the The axial arrangement of the insulating hollow rod, the upper end of the insulating rod is fixedly connected to one end of a stay rope, the other end of the stay rope is fixedly connected to one end of the diagonal stay rod, the other end of the diagonal stay rod is connected to the The connecting bracket is hinged; the insulating pull rod is freely sleeved with a lower limiter, the lower limiter is axially fixed on the insulating hollow rod, and an upper limiter is fixedly arranged on the insulating pull rod, the upper limit The positioning piece is located above the lower limiting piece; the two ends of the first elastic element are respectively connected to the diagonal stay rod and the connecting bracket; the second elastic element is sleeved on the insulating pull rod and located on the between the upper limiter and the lower limiter; the insulating handle is freely passed through the lower end of the insulating hollow rod, and the head end and the tail end of the insulating handle protrude from the insulating hollow rod, so The lower end of the insulating pull rod is hinged to the insulating handle, and the head end of the insulating handle is hinged to a first hoop fixed on the insulating hollow rod through a first rotating shaft; hold the tail of the insulating handle end and the lower end of the insulating hollow rod, the insulating handle can rotate around the first rotating shaft and drive the insulating pull rod to move down in the insulating hollow rod, and the insulating pull rod passes through the pull rope, the The diagonal stay rod and the connecting bracket drive the right shield storage device to move and form an opening angle with the left shield storage device; when the insulating handle is released, the insulating pull rod is supported by the first The elastic force exerted by the two elastic elements on the upper limit member moves up in the insulating hollow rod, so that the right shield storage device falls back and forms a closed state with the left shield storage device.

Preferably, the upper end of the right side cover storage device is hinged to the upper end of the left side cover storage device through a connecting hinge.

Preferably, the upper limit member is an upper limit tube, and the upper limit member is sleeved on the outside of the insulating pull rod and fixedly connected to the insulating pull rod through a fixed connector.

Preferably, the lower limiter includes a limiter body and a fixed handle, the limiter body is sleeved outside the insulating pull rod, the limiter body is connected to the inner end of the fixed handle, the The outer end of the fixing handle protrudes from a limited reserved hole on the side wall of the insulating hollow rod and is axially fixed on the insulating hollow rod by a positioning block installed in the limited reserved hole .

Preferably, the left shield storage device is fixedly connected with a second clamp, and the second clamp is fixedly sleeved on the insulating hollow rod.

Preferably, the upper end of the insulating hollow rod is provided with a reserved hole for the left tie rod and a reserved hole for the right tie rod, and the reserved hole for the left tie rod and the reserved hole for the right tie rod are oppositely arranged along the radial direction of the insulating hollow rod , the diagonal stay rod is free to pass through the insulating hollow rod through the reserved hole of the left stay rod and the reserved hole of the right stay rod, and both ends of the stay rod along the length direction protrude from the insulating hollow Outside the rod; the lower end of the insulating hollow rod is provided with a reserved hole for the left handle and a reserved hole for the right handle, and the reserved hole for the left handle and the reserved hole for the right handle are arranged oppositely along the radial direction of the insulating hollow rod , the insulating handle freely passes through the insulating hollow rod through the reserved hole of the left handle and the reserved hole of the right handle.

Preferably, a pulley is installed in the insulating hollow rod, the pulley is located above the insulating pull rod, and the stay rope is connected to the diagonal stay rod after bypassing the pulley.

Preferably, both the first elastic element and the second elastic element are springs.

Preferably, an insulating plug is embedded in the lower end of the insulating hollow rod.

Preferably, a limit screw is fixed on the insulating hollow rod, and the limit screw is located on the periphery of the insulating pull rod and supported on the bottom surface of the lower limit member to prevent the lower limit member from moving downward.

Compared with the prior art, the present invention has achieved the following technical effects:

After the wire clip shield is opened and returned to the vertical state with the ground, use the installation tool for the wire clip shield of the electrical inspection grounding ring of the overhead line in the present invention to install the wire clip shield so that the twisted electric inspection grounding ring can be reset. Use the installation tool The working process is:

The operator holds the lower end of the insulating hollow rod, aligns the storage device on the left side of the installation tool with the adjusted electric test grounding ring and the wire clip shield connected to the wire, and when holding the insulating handle tightly, the first elastic element is Compression deformation, the insulation pull rod moves down, so that the stay rope moves down, the diagonal stay rod receives the tension from the stay rope and moves upward to the right, and at the same time, the first elastic element is stretched by the tension. During the oblique movement of the diagonal stay rod under the combined force of the pull rope and the insulating pull rod, the connecting bracket of the right guard storage device and the right guard storage device are driven to move, and the right guard storage device is opened and aligned with the left side. The shield storage device forms an opening angle capable of accommodating the wire clip shield, so that the left shield storage device is close to the wire clip shield connected to the electric test grounding ring and the wire, and the wire clip shield is placed on the right shield. The cover storage device is opened and connected with the left cover storage device; loosen the insulating handle, the first elastic element restores its original length, and under the action of the recovery deformation force of the second elastic element, the insulating pull rod moves up, making the pull cord move up , the inclined stay rod releases the pulling force from the stay rope and is subjected to the pulling force of the first elastic element and has a tendency to move upward to the left. The connecting bracket of the right side shield storage device is moved to the lower left by the pulling force of the first elastic element, driving the right side shield storage device connected to it to move, the left side shield storage device and the right side shield storage device begin to close, and the right side shield storage device starts to close. The side shroud storage rotates and approaches the left shroud storage, closing the cord clip guards in the left shroud storage and right shroud storage and completing the installation; when the insulated handle is gripped again, the cord clip guard Leave the cover on the clamp, lift the insulating hollow rod and remove the installation tool.

The installation tool for the wire clip shield of the electrical inspection grounding ring of the overhead line in the present invention can conveniently and safely realize the live installation of the wire clip insulation shield of the electrical inspection grounding ring, and can be used in the case of a 10 kV overhead line without power failure. Manual direct contact with the overhead line, install and adjust the electric test grounding ring clamp shield, eliminate the influence of the torque generated by the torsion of the electric test grounding ring on the safe operation of the wire, eliminate the torsion angle of the electric test grounding ring reaching 90° and above, and the electric test grounding The exposed part of the ring is affected by line short circuit or ground fault caused by suspended conductive garbage from top to bottom (such as metal wrapping paper near buildings, low-voltage stripped wires, exposed linear conductors, etc.), which improves the safety of overhead lines. Avoid power failure operation, ensure the reliability of power supply, and ensure the safety of operators.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is a schematic diagram of the state of the overhead line electric test grounding ring clamp shield installation tool gripping the insulating handle provided by the present invention;

Fig. 2 is a schematic diagram of a state in which the insulating handle is loosened by the installation tool of the overhead line electric test grounding ring clamp shield provided by the present invention;

Fig. 3 is a kind of structural representation of the insulating pull rod in the installation tool of the overhead line electric test grounding loop clamp shield provided by the present invention;

Fig. 4 is a schematic structural view of the diagonal stay rod in the installation tool of the overhead line electric test grounding loop clamp shield provided by the present invention;

Fig. 5 is a kind of structural representation of the connecting bracket in the installation tool of the overhead line electric test grounding loop clamp shield provided by the present invention;

Fig. 6 is a schematic structural view of the upper limit member in the installation tool for the electrical inspection grounding loop clamp shield of the overhead line provided by the present invention;

Fig. 7 is a schematic structural view of the lower limiter in the installation tool for the electrical inspection grounding loop clamp shield of the overhead line provided by the present invention;

Fig. 8 is a schematic structural view of the insulating handle in the installation tool of the overhead line electric test grounding ring clamp shield provided by the present invention;

Fig. 9 is a schematic structural view of the first hoop in the installation tool for the electrical inspection grounding ring clamp shield of the overhead line provided by the present invention;

Fig. 10 is a front view of an insulating hollow rod in the installation tool of the overhead line electric test grounding ring clamp shield provided by the present invention;

Fig. 11 is the right side view of the insulating hollow rod in the installation tool of the overhead line electric test grounding ring clamp shield installation tool in Fig. 10;

Fig. 12 is a front view of a connection hinge in the installation tool of the overhead line electric test grounding ring clamp shield provided by the present invention;

Fig. 13 is a schematic structural view of the second hoop in the installation tool for the overhead line electrical inspection grounding loop clamp shield provided by the present invention;

Among the figure: 1-shield storage device; 101-left side shroud storage device; 102-right side shroud storage device; 103-connection hinge; 2-diagonal tie rod; 23-eye hole of the third diagonal stay rod; 3-stay rope; 31-stay rope upper bolt; 32-stay rope lower bolt; 4-insulation tie rod; 41-first insulation tie rod eye hole; 42 - the second insulating rod eye; 43- the third insulating rod eye; 5- the first hoop; 51- the first hoop eye; 52- the second hoop eye; 53- hoop connecting rod; 6 -upper limiter; 61-upper limiter entity; 62-upper limiter eye; 7-set screw; 8-second elastic element; 9-lower limiter; 91 limiter holder; 92-fixed handle; 10 -limit screw; 11-clamp bolt; 12-second rotating shaft; 13-first rotating shaft; 14-insulating handle; 15-insulating hollow rod; 151-fixed pulley mounting hole; -Reserved hole for right tie rod; 153-Reserved hole for limit; 1541-Reserved hole for limit screw; 1551-Reserved hole for left handle; 1552-Reserved hole for right handle; 16-Insulation plug; 17-Second card hoop; 18-connecting bracket; 19-pulley; 20-first elastic element.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The purpose of the present invention is to provide an installation tool for the wire clip shield of the electrical inspection grounding ring of overhead lines, to solve the problem that the electrical inspection grounding ring can only be reset when the power is off, to realize the live installation of the wire clamp insulation shield of the electrical inspection grounding ring, and to eliminate The influence of the torque generated by the torsion of the electrical grounding ring on the safe operation of the conductor improves the safety of the overhead line.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The present invention provides an installation tool for the electric test grounding ring clip shield of overhead lines. In a specific embodiment of the present invention, as shown in Figures 1-2, the installation tool for the overhead line electric test grounding ring clamp shield includes an insulating hollow rod 15. The shield storage device 1, the insulating pull rod 4, the first elastic element 20, the second elastic element 8 and the insulating handle 14, the upper end of the insulating hollow rod 15 is freely pierced with a diagonal pull rod 2; the shield storage device 1 includes a left side The shield storage device 101 and the right shield storage device 102, one end of the left shield storage device 101 is fixedly connected to the insulating hollow rod 15, the other end of the left shield storage device 101 is connected to the right shield storage device 102. One end is hinged, and the other end of the right shield storage device 102 is fixedly connected with a connecting bracket 18, as shown in Figure 5; the insulating pull rod 4 is located in the insulating hollow rod 15 and is arranged along the axial direction of the insulating hollow rod 15, and the upper end of the insulating pull rod 4 One end of a stay cord 3 is fixedly connected, and the other end of the stay cord 3 is fixedly connected to one end of the diagonal stay rod 20, and the other end of the stay cord 2 is hinged with the connecting bracket 18; the insulating stay rod 4 is freely sleeved with a lower limiter 9, The lower limiting member 9 is axially fixed on the insulating hollow rod 15, and an upper limiting member 6 is fixedly arranged on the insulating pull rod 4, and the upper limiting member 6 is located above the lower limiting member 9; the two ends of the first elastic element 20 are respectively connected to the inclined On the pull rod 2 and the connecting bracket 18; the second elastic element 8 is sleeved on the insulating pull rod 4 and is located between the upper limit member 6 and the lower limit member 9; the insulating handle 4 is freely passed through the lower end of the insulating hollow rod 15, and is insulated The head end and the tail end of the handle 14 all protrude from the insulating hollow rod 15, the lower end of the insulating pull rod 4 is hinged with the insulating handle 14 through the second rotating shaft 12, and the head end of the insulating handle 14 is hinged to a fixedly arranged insulating handle 14 through the first rotating shaft 13. On the first clamp 5 on the hollow rod 15, the first rotating shaft 13 and the second rotating shaft 12 are bolts; Rotate and drive the insulating pull rod 4 to move down in the insulating hollow rod 15, and the insulating pull rod 4 drives the right shield storage device 102 to move through the stay rope 3, the diagonal stay rod 2 and the connecting bracket 18 in turn and forms with the left shield storage device 101 An opening angle is used to accommodate the wire clip shield in an open state; when the insulating handle 14 is released, the insulating pull rod 4 is moved up in the insulating hollow rod 15 by the elastic force applied by the second elastic element 8 to the upper limit member 6 , so that the right side shield storage device 102 falls back and forms a closed state with the left side shield storage device 101 so that the clamp shield is closed and fixed on the electrotest ground ring.

After the wire clip shield is opened and returned to the vertical state with the ground, use the installation tool for the wire clip shield of the electrical inspection grounding ring of the overhead line in the present invention to install the wire clip shield so that the twisted electric inspection grounding ring can be reset. Use the installation tool The working process is:

The operator holds the lower end of the insulating hollow rod 15, aligns the left side shield storage device 101 of the installation tool with the wire clip shield connected with the adjusted electric test grounding ring, and when holding the insulating handle 14 tightly, the first The elastic element 8 is compressed and deformed, the insulating pull rod 4 moves down, so that the stay rope 3 moves down, and the diagonal stay rod 2 is subjected to the tension from the stay rope 3 to move to the upper right, while the first elastic element 20 is stretched under the tension. When the diagonal stay rod 2 moves obliquely under the resultant force of the stay rope 3 and the insulating pull rod 4, it drives the connecting bracket 18 of the right shield storage device 102 and the right shield storage device 102 to move, and the right shield storage device 102 opens and forms an opening angle capable of accommodating the wire clip shield with the left shield storage device 101, so that the left shield storage device 101 is attached to the wire clip shield connected to the electrical test grounding ring and the wire, so that The wire clip shield is placed on the right shield storage device 102 and is opened with the left shield storage device 101 .

Loosen the insulating handle 14, the first elastic element 20 returns to its original length, under the action of the second elastic element 8 recovering deformation force, the insulating pull rod 4 moves up, so that the stay rope 3 moves up, and the diagonal stay rod 2 releases the force from the stay rope 3. The pulling force is subjected to the pulling force of the first elastic element 20 and has a tendency to move upward to the left. The connecting bracket 18 of the right side shield storage device 102 is moved downward to the left by the pulling force of the first elastic element 20, driving the right side shield storage device 102 connected to it to move, and the left side shield storage device 101 and the right side shield storage device The device 102 starts to close, and the right side shield storage device 102 rotates and approaches the left side shield storage device 101, so that the wire clip shields in the left side shield storage device 101 and the right side shield storage device 102 are closed and the installation is completed.

When holding the insulating handle tightly again, the wire clip guard stays on the wire clip, and the insulating hollow rod is lifted up and the installation tool is removed.

The installation tool for the wire clip shield of the electrical inspection grounding ring of the overhead line in the present invention can conveniently realize the live installation of the wire clip insulation shield of the electrical inspection grounding ring, eliminate the influence of the torque generated by the torsion of the electrical inspection grounding ring on the safe operation of the wire, and eliminate the The torsion angle of the electrical inspection grounding ring reaches 90° and above, and the exposed part of the electrical inspection grounding ring is caused by suspended conductive garbage from top to bottom (such as metal wrapping paper near buildings, low-voltage stripped wires, exposed linear conductors, etc.) The effect of line short circuit or ground fault improves the safety of overhead lines.

In another specific embodiment of the present invention, the upper end of the right shield storage device 102 is hinged to the upper end of the left shield storage device 101 through a connecting hinge 103 (as shown in FIG. 12 ).

As shown in Figure 4, the two ends of the diagonal stay rod 2 are respectively provided with a first diagonal stay rod eye 21 and a second diagonal stay rod eye 22, and the part of the diagonal stay rod 2 close to the second diagonal stay rod eye 22 is also provided with a second Three inclined tie rod eyelets 23, the first inclined stay rod eyelet 21 is used to form a hinge with the connecting bracket 18, the second inclined stay rod eyelet 22 is pierced with a stay rope upper bolt 31, and the stay rope 3 is connected to the stay rope upper bolt 31 On, the third oblique tie rod eyelet 23 is used to connect the first elastic element 20, and the stay rope 3 is connected to the insulating pull rod 4 by the stay rope lower bolt 32.

As shown in Figure 3 and Figure 6, the upper end of the insulating rod 4 is provided with a first insulating rod eye 41, and the lower end is provided with a second insulating rod eye 42, and the first insulating rod eye 41 is used for installing the lower bolt 32 of the stay rope. To be connected with the stay cord 3, the second insulating pull rod eye 42 is used to install the second rotating shaft 12 to form a hinge with the insulating handle 14, the insulating pull rod 4 is also provided with a third insulating pull rod eye 43, and the upper limit member 6 includes an upper limit Position member entity 61, the upper limit member entity 61 is provided with an upper limit member eye hole 62, and the fixing screw 7 passes through the upper limit member eye hole 62 and the third insulating rod eye hole 43 to install the upper limit member 6 on the insulating hollow rod 15 on.

As shown in Figures 8 and 9, a first clamp eye hole 51 is provided on the two clamp joints of the clamp 5, and the first clamp eye hole 51 is used to pass through the clamp bolt 11 to clamp the clamp 5 tightly. on the insulating hollow rod 15; the clamp 5 is also fixedly connected with a clamp connecting rod 53, and the clamp connecting rod 53 is provided with a second clamp eye 52, and the second clamp eye 52 is used for piercing The first rotating shaft 13 is hinged with the head end of the insulating handle 14 .

In another specific embodiment of the present invention, the upper limit member 6 is an upper limit tube, and the upper limit member 6 is sheathed outside the insulating pull rod 4 and fixedly connected to the insulating pull rod 4 by fixing screws 7 . In the installation tool for the overhead line electric test grounding ring clamp shield in the present invention, the upper limit member 6 is not limited to being fixedly connected to the insulating pull rod 4 by fixing screws, and other fixed connections between the upper limit member 6 and the insulating pull rod 4 can be realized. Parts are also available, such as fixing bolts.

As shown in Figure 7, in another specific embodiment of the present invention, the lower limit member 9 includes a limit support body 91 and a fixed handle 92, the limit support body 91 is sleeved outside the insulating pull rod 4, and the limit support body 91 It is connected with the inner end of the fixed handle 92, and the outer end of the fixed handle 92 protrudes from a space-limiting reserved hole 153 provided on the side wall of the insulating hollow rod 15 and is pivoted by a positioning block installed in the space-limiting reserved hole 153. To be fixed on the insulating hollow rod 15.

In another specific embodiment of the present invention, as shown in FIG. 13 , the left shield storage device 101 is fixedly connected to the insulating hollow rod 15 through the second clip 17 . The second hoop 17 is fixedly sleeved on the insulating hollow rod 15, and the second hoop 17 is connected to the left shield storage device 101 by insulating bolts and bonded.

In another specific embodiment of the present invention, as shown in Figures 10-11, the upper end of the insulating hollow rod 15 is provided with a reserved hole 1521 for the left tie rod and a reserved hole 1522 for the right tie rod, and the reserved hole 1521 for the left tie rod and the right tie rod The reserved holes 1522 are set opposite to each other along the radial direction of the insulating hollow rod 15, and the diagonal stay rod 2 is freely penetrated on the insulating hollow rod 15 through the left stay rod reserved hole 1521 and the right stay rod reserved hole 1522, and the diagonal stay rod 2 is arranged along the length direction. Both ends extend out of the insulating hollow rod 15; the lower end of the insulating hollow rod 15 is provided with a left handle reserved hole 1551 and a right handle reserved hole 1552, and the left handle reserved hole 1551 and the right handle reserved hole 1552 are arranged along the insulating hollow rod. 15 is arranged radially opposite to each other, and the insulating handle 14 is freely threaded on the insulating hollow rod 15 through the left handle reserved hole 1551 and the right handle reserved hole 1552 .

In another specific embodiment of the present invention, in order to reduce the friction force suffered during the movement of the stay cord 3, a pulley 19 is installed in the insulating hollow rod 15, the pulley 19 is located above the insulating pull rod 4, and the stay cord 3 walks around the pulley After 19, it is connected with the diagonal stay rod 2. The pulley 19 is installed on the insulating hollow rod 15 by bolts.

In another specific embodiment of the present invention, both the first elastic element 20 and the second elastic element 8 are springs.

In another specific embodiment of the present invention, in order to prevent moisture and prevent the insulating hollow rod 15 from being knocked and damaged by external force, the lower end of the insulating hollow rod 15 is embedded with an insulating plug 16 .

In another specific embodiment of the present invention, a limit screw 10 is fixedly arranged on the insulating hollow rod 15, and the limit screw 10 is located on the periphery of the insulating pull rod 4 and supported on the bottom surface of the lower limiter 9 to prevent the lower limiter 9 from moving downward. , the limit screw 10 is installed in the limit screw mounting hole 1541 provided on the insulating hollow rod 15. When the insulated handle 14 is pulled, the spring 8 is pressed to produce a tendency to move downward and press the limiting plate 9 downward. At this time, the limiting screw 10 plays a role in preventing the downward movement of the limiting plate 9 to generate displacement.

Between the second elastic element 8 upper end and the upper limit piece 6, and between the second elastic element 8 and the lower limit piece 9, it is possible to be fixedly connected or not to be connected.

Except for the springs used in the first elastic element and the second elastic element, the installation tool is made of epoxy glass fiber reinforced plastic or other insulating materials.

The distances from the reserved hole 1521 of the left tie rod and the reserved hole 1522 of the right tie rod to the upper end of the insulating hollow rod are H1 and H2 respectively, and H1 and H2 should meet the requirements of the oblique pull rod 2 when the shield storage device is opened and can be put into the wire clamp shield. The mobile space requirements; H1>0, can be set to 10 cm, H2>H1.

The heights of the left tie rod reserved hole 1521 and the right tie rod reserved hole 1522 are h1, h2 respectively, and the widths are k1, k2 respectively. The height and width of the left tie rod reserved hole 1521 and the right tie rod reserved hole 1522 are limited: h1, k1, h2, and k2 should meet the requirements of the normal working space of the diagonal tie rod 2, and h1, h2 should keep the shield storage device 1 normally opened and closed. h1 and h2 are greater than the width of the diagonal stay rod 2 , and k1 and k2 are greater than the thickness of the diagonal stay rod 2 .

Similarly, the height and width of the left handle reserved hole 1551 and the right handle reserved hole 1552 should also meet the needs of the normal working space of the insulating handle 14, and the shield storage device 1 can be kept open normally when the insulating handle 14 is gripped or loosened or closed. The height of the left handle reserved hole 1551 and the right handle reserved hole 1552 is greater than the width of the insulating handle 14 , and the width of the left handle reserved hole 1551 and the right handle reserved hole 1552 is greater than the thickness of the insulating handle 14 .

It should be noted that the installation tool for the overhead line electric test grounding ring clip shield provided by the present invention does not limit the fixed connection method between the connecting bracket and the right shield storage device, and the two adopt bolts, bonding or other fixed connection methods Both can be used; the fixed connection method between the storage device on the left side shield and the insulating hollow rod is also not limited, and bolts, bonding or other fixed connection methods can be used for both. There is also no limitation on the fixed connection method between the connecting bracket and the storage device of the right shield, both of which can be fixedly connected by bonding, integral molding, bolt or screw connection.

In the present invention, specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method and core idea of the present invention; meanwhile, for those of ordinary skill in the art, according to the present invention The idea of the invention will have changes in the specific implementation and scope of application. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (8)

1. A tool for installing an overhead line electric test grounding ring clamp shield, characterized in that: comprising: Insulated hollow rod, the upper end of the insulating hollow rod is freely pierced with a diagonal stay; A shield storage device, the shield storage device includes a left shield storage device and a right shield storage device, one end of the left shield storage device is fixedly connected to the insulating hollow rod, and the left shield storage device The other end of the cover storage device is hinged to one end of the right side cover storage device, and the other end of the right side cover storage device is fixedly connected to a connecting bracket; An insulating pull rod, the insulating pull rod is located in the insulating hollow rod and arranged along the axial direction of the insulating hollow rod, the upper end of the insulating pull rod is fixedly connected to one end of a pull rope, and the other end of the pull rope is fixedly connected to the One end of the diagonal stay rod, the other end of the diagonal stay rod is hinged to the connecting bracket; a lower limiter is freely sleeved on the insulating rod, and the lower limiter is axially fixed on the insulating hollow rod, An upper limiter is also fixedly arranged on the insulating pull rod, and the upper limiter is located above the lower limiter; a first elastic element, the two ends of the first elastic element are respectively connected to the diagonal stay rod and the connecting bracket; a second elastic element, the second elastic element is sleeved on the insulating pull rod and located between the upper limiter and the lower limiter; and an insulating handle, the insulating handle freely passes through the lower end of the insulating hollow rod, and the head and tail ends of the insulating handle protrude from the insulating hollow rod, and the lower end of the insulating pull rod is insulated from the insulating rod. The handle is hinged, and the head end of the insulating handle is hinged to a first hoop fixed on the insulating hollow rod through a first rotating shaft; when holding the tail end of the insulating handle and the lower end of the insulating hollow rod , the insulating handle can rotate around the first rotating shaft and drive the insulating pull rod to move down in the insulating hollow rod, and the insulating pull rod is sequentially driven by the pull rope, the diagonal stay rod and the connecting bracket The right shield storage device moves and forms an opening angle with the left shield storage device; when the insulating handle is released, the insulating pull rod is applied to the upper limit by the second elastic element The elastic force of the part moves up in the insulating hollow rod, so that the right side shield storage device falls back and forms a closed state with the left side shield storage device; The upper end of the right shield storage device is hinged to the upper end of the left shield storage device through a connecting hinge; The upper limit member is an upper limit tube, and the upper limit member is sleeved on the outside of the insulating pull rod and fixedly connected to the insulating pull rod through a fixed connector. 2. The tool for installing the protective cover of the grounding ring clamp for the electrical inspection of overhead lines according to claim 1, wherein the lower limiting member includes a limiting bracket and a fixing handle, and the limiting bracket is sleeved on the Outside the insulating pull rod, the limit holder is connected to the inner end of the fixed handle, and the outer end of the fixed handle protrudes from a limit reserved hole on the side wall of the insulating hollow rod and is installed by a The positioning block in the reserved hole is axially fixed on the insulating hollow rod. 3. The installation tool for the protective cover of the grounding ring clamp for the electrical inspection of the overhead line according to claim 1, characterized in that: the left side protective cover storage device is fixedly connected with a second clamp, and the second clamp is fixedly sleeved on the insulating hollow rod. 4. The installation tool for the electric inspection grounding loop clamp shield of overhead line according to claim 1, characterized in that: the upper end of the insulating hollow rod is provided with a reserved hole for the left tie rod and a reserved hole for the right tie rod, and the left tie rod The reserved hole and the reserved hole of the right tie rod are arranged opposite to each other along the radial direction of the insulating hollow rod, and the diagonal stay rod freely passes through the insulating hollow rod through the reserved hole of the left tie rod and the reserved hole of the right tie rod. on the hollow rod, and both ends of the diagonal stay rod extend out of the insulating hollow rod along the length direction; the lower end of the insulating hollow rod is provided with a reserved hole for the left handle and a reserved hole for the right handle, and the left handle The reserved hole and the reserved hole for the right handle are arranged opposite to each other along the radial direction of the insulating hollow rod, and the insulating handle freely passes through the insulating handle through the reserved hole for the left handle and the reserved hole for the right handle. on the hollow rod. 5. The tool for installing the protective cover of the grounding ring clamp for electrical testing of overhead lines according to claim 1, wherein a pulley is installed in the insulating hollow rod, the pulley is located above the insulating pull rod, and the pull rope is wound After passing the pulley, it is connected with the diagonal stay rod. 6 . The tool for installing the protective cover of the grounding ring clamp for electrometric testing of overhead lines according to claim 1 , wherein both the first elastic element and the second elastic element are springs. 7 . 7 . The tool for installing the protective cover of the grounding ring clamp for electrical testing of overhead lines according to claim 1 , wherein an insulating plug is embedded in the lower end of the insulating hollow rod. 8 . 8. The tool for installing the protective cover of the grounding ring clamp for the electrical inspection of the overhead line according to claim 1, characterized in that: a limit screw is fixed on the insulating hollow rod, and the limit screw is located on the periphery of the insulating pull rod and supports on the bottom surface of the lower limiting member to prevent the lower limiting member from moving downward.

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