CN216991698U

CN216991698U - Lightning arrester sheath mounting tool

Info

Publication number: CN216991698U
Application number: CN202120839599.3U
Authority: CN
Inventors: 张雨利; 张远; 刘峰; 王威; 刘宗杰; 魏超; 李�浩; 江政; 许毅然; 杨治中
Original assignee: State Grid Corp of China SGCC; Jining Power Supply Co
Current assignee: State Grid Corp of China SGCC; Jining Power Supply Co
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2022-07-19
Anticipated expiration: 2031-04-22

Abstract

The utility model relates to a lightning arrester sheath mounting tool, which comprises a plate body, wherein a mounting surface is formed on one side surface of the plate body, a groove is formed in the mounting surface and used for inserting a sheath bottom skirt part, a through groove is formed in the plate body and used for accommodating a sheath protruding part, the through groove penetrates through the plate body and is communicated with the groove, the through groove penetrates through the mounting surface, and the plate body is fixed with an insulating rod piece. The utility model is convenient for realizing the installation of the sheath in the lightning arrester, improves the installation efficiency of the protective cover and reduces the probability of safety accidents.

Description

Lightning arrester sheath mounting tool

Technical Field

The utility model belongs to the technical field of power equipment, and particularly relates to an arrester sheath mounting tool.

Background

The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.

Along with the rapid development of a power distribution network, the number of the switches on the column is more and more, and the number of the lightning arresters also rises linearly. Due to the influence of a plurality of external factors such as long commissioning time, wind, sunshine and the like, the lightning arrester sheath falls off, the probability of circuit tripping, short circuit and grounding is increased, and the power supply reliability is seriously influenced. The lightning arrester sheath is installed in an electrified mode, the lightning arrester is installed on a column through an insulating bucket arm vehicle, an operator needs to operate the insulating bucket arm vehicle, and the lightning arrester is installed on the top end of the lightning arrester through insulating gloves.

The inventor knows that the structure of the lightning arrester sheath (mainly used in distribution networks with voltage class of 10kV and below) mainly comprises a bottom skirt part, a convex part, a conical sleeve part and a bonding part. However, the installation position of the lightning arrester adapted to the sheath is uncertain, the lightning arrester is not suitable for direct installation by an insulating glove method, live lines around some lightning arresters are messy, and if an operator directly inserts an arm into the messy lines for installation, electric shock danger can be caused; tree barriers exist around some lightning arresters, and operators cannot directly install the sheath; some lightning arresters are far away, the small bucket of the insulating bucket arm truck cannot touch the lightning arrester, and operators cannot install the lightning arrester.

Under the above-mentioned complicated operating mode, only can stop the circuit that live working can't install arrester sheath place, adopt modes such as pole climbing to install the arrester sheath, increased the operation degree of difficulty like this, because of having a power failure caused economic loss, reduced the perception degree of user's power consumption, all cause harmful effects to power supply company's economy and reputation.

SUMMERY OF THE UTILITY MODEL

The present invention aims to provide a lightning arrester sheath installation tool which can solve at least one of the technical problems.

In order to achieve the above object, one or more embodiments of the present invention provide an arrester sheath installation tool, which includes a plate body, wherein a mounting surface is formed on one side surface of the plate body, and a groove is formed at the mounting surface for inserting a sheath bottom skirt; a through groove is arranged in the plate body and used for accommodating the sheath bulge; the through groove penetrates through the plate body and is communicated with the groove, the through groove penetrates through the mounting surface, and the plate body is fixed with the insulating rod piece.

As a further improvement, the plate body structure further comprises a clamp connected with the plate body, and the clamp can clamp the protruding portion in the through groove.

As a further improvement, the protective sleeve further comprises a positioning pin, one end of the positioning pin is hinged with the plate body, the other end of the positioning pin can move to the through groove, and the protective sleeve is limited to be separated from the through groove.

As a further improvement, the insulating rod piece is provided with a sliding block capable of sliding along the axis direction of the insulating rod piece, one end, far away from the installation surface, of each clamping rod is hinged with a connecting rod, one end of each connecting rod is hinged with the sliding block, and the other end of each connecting rod is hinged with one end, far away from the installation surface, of each clamping rod.

The beneficial effects of one or more of the above technical schemes are as follows:

(1) adopt the structural grouping of insulating member and plate body, insulating member can increase operating length, even when the electrified circuit around the arrester is mixed and disorderly, has the tree obstacle around, insulating member also can pass in the environment of degree complicacy, and operating personnel's arm also can not touch corresponding obstacle. The plate body department sets up the recess and leads to the groove that are linked together, can insert the recess with the end skirt of sheath, and the bellying inserts and leads to the groove, and then realizes the sheath for mounting tool's location, is convenient for shift it to the arrester top and further install.

(2) Adopt anchor clamps structure, after utilizing recess and logical groove in the plate body to realize the location of lag, anchor clamps structure can further fix lag and plate body, reduces the probability that the lag is fallen by the collision from the plate body when the installation.

(3) By adopting the positioning pin structure, after the positioning of the protective sleeve is realized by utilizing the groove and the through groove in the plate body, the protective sleeve and the plate body can be further fixed by the positioning pin, and the probability that the protective sleeve is collided and falls off from the plate body when the protective sleeve is installed is reduced.

(4) The mode that the sliding blocks, the connecting rods and the clamping rods are hinged to each other to form a quadrilateral structure is adopted, so that the sliding of the sliding blocks is convenient to change the included angle between every two adjacent clamping rods, and the opening and closing of the clamp are realized.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

FIG. 1 is a schematic view of an embodiment of the present invention showing the overall structure with two jaws open;

FIG. 2 is a schematic view of the overall structure of an embodiment of the present invention with two jaws closed;

FIG. 3 is a schematic view of a through groove provided at a pole sleeve in an embodiment of the present invention

FIG. 4 is a schematic structural view of a plate member according to an embodiment of the present invention;

FIG. 5 is an axial view of a shield to be installed in an embodiment of the present invention;

fig. 6 is a schematic bottom view of a shield to be installed in an embodiment of the present invention.

In the figure, 1, a plate; 101. a groove; 102. a through groove; 2. positioning pins; 3. a chuck; 4. a straight rod; 5. a fixed seat; 6. a connecting rod; 7. a slider; 8. a second rod sleeve; 9. a through groove; 10. a pull rod; 11. a first rod cover; 12. a hoop plate; 13. a bottom skirt portion; 14. a tapered sleeve portion; 15. a boss portion; 16. and a bonding portion.

Detailed Description

As shown in fig. 5-6, a schematic structural diagram of a sheath (also referred to as a protective sheath or a protective cover) for a lightning arrester in the present embodiment is given, and the sheath is generally made of a silica gel material, and includes a bottom skirt portion 13, a protruding portion 15 is disposed above the bottom skirt portion 13, the bottom skirt portion 13 and the protruding portion 15 enclose to form a cavity, an upper end of the lightning arrester is inserted into the cavity to realize protection, and an external lead is disposed at the lightning arrester, so that a tapered sleeve portion 14 is disposed at one side of the protruding portion 15, the lead is wrapped in the tapered sleeve portion 14, in order to realize installation of the lead, an opening penetrating through both end portions is disposed at the tapered sleeve portion 14, and a magic tape for bonding is disposed at the opening to form a bonding portion 16.

As shown in fig. 1 to 4, in an exemplary embodiment of the present invention, there is provided a lightning arrester sheath installation tool, including a plate body, one side surface of which forms an installation surface, and the installation surface is provided with a groove 101 for inserting a sheath bottom skirt 13; a through groove 102 is arranged in the plate body and used for accommodating the sheath convex part 15; the through groove 102 penetrates through the plate body and is communicated with the groove 101, the through groove 102 penetrates through the mounting surface, the plate body is fixed with the insulating rod piece, and the plate body is of a flat plate structure. In the case that the body is a flat plate-shaped structure, it may be a rectangular plate or a circular plate or a diamond-shaped plate structure. The figure shows a schematic diagram of the plate body which is a rectangular plate.

In order to realize the installation of the arrester sheath, each part of the sheath is inserted into the corresponding structure of the plate body, if only the groove 101 is arranged, the bulge part 15 is clamped at the installation surface of the plate body, therefore, the through groove 102 communicated with the groove 101 is arranged at the plate body, the through groove 102 penetrates through the installation surface and the plate body, and when the bottom skirt part 13 is inserted into the groove 101, the bulge is clamped into the through groove 102 from the installation surface. And the inner cavity of the sheath can be exposed at the through groove 102 so as to be sleeved on the upper end of the lightning arrester.

The plate body in the embodiment can only realize the insertion and the positioning of the sheath, and if the sheath is not further fixed by other structures, the mounting surface needs to be inclined upwards, so that the sheath tends to be inserted into the plate body under the self gravity. Keeping the installation face and inclining the gesture upwards, utilizing insulating rod to remove plate body and sheath to the top of arrester, transferring the sheath and making it cup joint in the arrester upper end, then pull insulating rod for plate 1 and sheath separation can.

Under the condition that the groove 101, the through groove 102 and the sheath self-gravity are adopted in the plate body, the installation surface needs to be inclined upwards, the operation posture of the installation tool is limited, and the sheath can be greatly knocked off when the installation tool collides with a cable and branches. In order to solve the above problem, a structure of providing a jig and/or a positioning pin 2 on the surface of the plate is adopted.

In this embodiment, a clamp is provided on the surface of the plate body, and the clamp can clamp the protruding portion 15 in the through groove 102. The clamp comprises two clamping rods hinged to the middle, the two clamping rods form a scissor-fork type structure, and one ends, close to the mounting surface, of the clamping rods form clamping heads 3 used for clamping the protruding portions 15. The chuck 3 is the semicircle annular structure, and every chuck 3 keeps away from the fixed straight-bar 4 of one end of installation face, and the supporting rod comprises the straight-bar 4 of body structure and the chuck 3 of semicircle annular structure, and the pin joint of two supporting rods is in the junction of chuck 3 and straight-bar 4. The chuck 3 can also adopt other structural forms such as an L-shaped rod or a bending rod with one end fixedly connected at a set included angle.

In this embodiment, set up locating pin 2 on the body surface, the one end and the plate body of locating pin 2 are articulated, and the other end of locating pin 2 forms the free end, and the free end can move to logical groove 102 department to the restriction sheath breaks away from logical groove 102. In fig. 2, the number of the positioning pins 2 is two, and the positioning pins 2 are respectively located on two sides of the through groove 102, and the rotation axis of the positioning pin 2 is parallel to the extending direction of the through groove 102. Locating pin 2 should satisfy the length requirement of setting for, just can make the free end can move to logical groove 102's position, and behind the bellying 15 of sheath inserted logical groove 102, locating pin 2 is in the position of bellying 15 and the 14 junctions of toper cover portion, and if the sheath should break away from, needs promote locating pin 2 earlier and rotates. The required damping can provide the resistance that the sheath breaks away from when rotating between locating pin 2 and the plate body, and when the sheath received the collision not big, locating pin 2 can prevent that it from dropping from the plate body.

Above-mentioned 2 structures of locating pin and anchor clamps structure can use simultaneously in order to improve the fixed effect of plate body and sheath, under the circumstances that reduces fixed effect, also can the exclusive use.

The above-mentioned two holding rods that have given form and cut fork structure, and the opening and closing of chuck 3 can be realized to the rotation each other between two holding rods. In order to drive the two clamping rods to rotate mutually, a sliding block 7 capable of sliding along the axis direction of the insulating rod is arranged at the position of the insulating rod, one end, far away from the installation surface, of each clamping rod is hinged with a connecting rod 6, one end of each connecting rod 6 is hinged with the sliding block 7, and the other end of each connecting rod is hinged with one end, far away from the installation surface, of each clamping rod. Through two connecting rods 6, two supporting rods keep away from each other articulated of installation face one end and slider 7, form a quadrangle structure, two connecting rods 6's size is the same, and two supporting rods's size is the same, and slider 7 can drive this quadrangle structure deformation along the slip of insulating rod spare, and then makes two supporting rod support take place relative rotation.

For driving the sliding along the insulating rod, said slider 7 is arranged in the cavity of the rod sleeve, the side wall of which is provided with a notch for passing the connecting rod 6. The pull rod 10 is nested in the rod sleeve, one end of the pull rod 10 is fixed with the sliding block 7, and the other end of the pull rod extends out of the rod sleeve.

It is also possible to provide the insulating operating rod with a sliding groove, such as a dovetail groove and a T-shaped groove, along its axial direction on the outside, to place the slider 7 in the sliding groove, and the link 6 on the outside of the insulating rod.

Or the pull rod 10 can be replaced by a pull rope, when the slide block 7 is positioned in the inner cavity of the rod sleeve, one end of the pull rope extends into the inner cavity of the rod sleeve and is fixed with the slide block 7, and the other end of the pull rope extends out of the rod sleeve. When the clamp needs to be closed, the pull rope is tensioned; the clamp needs to be opened, the pull cord is released, and the insulating rod is pulled back so that the sheath pushes the clamp to open.

In the case that the slide block 7 is arranged in the rod sleeve and the pull rod 10 is adopted, the rod sleeve at one end where the slide block 7 is arranged is set as a first rod sleeve 11, one end of the pull rod 10 extends out of the first rod sleeve 11 and is coaxially fixed with the second rod sleeve 8, and the cross-sectional shapes and sizes of the first rod sleeve 11 and the second rod sleeve 8 are the same. With the collet 3 fully open, the first sleeve 11 is in contact with the opposite end face of the second sleeve 8.

In order to fix the plate body and the second rod sleeve 8, a fixed seat 5 is arranged at one end of the plate body close to the first rod sleeve 11, and the fixed seat 5 and the rod sleeve are fixedly connected through an arc-shaped hoop plate and a bolt piece.

In this embodiment, the through groove 102 is a U-shaped groove, a bent portion of the U-shaped groove is disposed away from the mounting surface, and the groove 101 is a square groove.

The working principle is as follows: when the device is used, the positioning pin 2 is opened, the positioning pin 2 turns to the outer side from the inner side, and the pull rod 10 is pulled towards the direction close to the plate body, so that the clamp opening is opened to the maximum position.

Break off the end skirt 13 of arrester sheath with fingers and thumb, two magic subsides break away from the contact, are in the state of opening to install the sheath from installation face, end skirt 13 inserts recess 101, and protruding portion 15 inserts logical groove 102, and locating pin 2 turns to the inboard by the outside, prevents that the sheath from droing. The pull rod 10 is pulled so that the clamp is closed and the clamp holds the sheath.

After the insulating gloves are worn by an operator, the operator holds the insulating rod piece by hand, sends the sheath to the position above the arrester terminal without the sheath, aligns the upper skirt of the arrester terminal, and continues to push forwards, so that the arrester sheath is completely attached to the top end of the arrester;

operating the pull rod 10 to open the clamp to the maximum position;

horizontally retreating along the positive direction of the lightning arrester lead wire, withdrawing the installation tool, and leaving the sheath at the original position;

the bonding part 16 of the arrester sheath is clamped by a clamp, and the insulating magic tape of the bonding part 16 of the arrester is firmly bonded, so that the function of fixing the arrester sheath is realized.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the utility model, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive changes in the technical solutions of the present invention.

Claims

1. The lightning arrester sheath mounting tool is characterized by comprising a plate body, wherein a mounting surface is formed on one side surface of the plate body, and a groove is formed in the mounting surface and used for inserting a bottom skirt part; a through groove is arranged in the plate body and used for inserting the bulge part; the through groove penetrates through the plate body and is communicated with the groove, the through groove penetrates through the mounting surface, and the plate body is fixed with the insulating rod piece.

2. The arrester sheath installation tool of claim 1 further comprising a clamp connected to the plate body, the clamp capable of clamping the boss in the through slot.

3. The arrester sheath installation tool of claim 2 wherein the clamp comprises two clamping rods that are hingedly connected at their middle, one end of the clamping rods near the mounting surface forming a gripping head for gripping the boss.

4. The arrester sheath mounting tool according to claim 1 or 3, further comprising a positioning pin having one end hinged to the plate body, the other end of the positioning pin being movable to the through groove and restricting the sheath from being detached from the through groove.

5. The lightning arrester sheath mounting tool according to claim 2, wherein the insulating rod member is provided with a slider capable of sliding along an axial direction thereof, one end of each of the holding rods remote from the mounting surface is hinged with a connecting rod, one end of each connecting rod is hinged with the slider, and the other end of each connecting rod is hinged with one end of each of the holding rods remote from the mounting surface.

6. The arrester sheath installation tool of claim 5 wherein the slide block is disposed in a cavity of a rod sleeve, a side wall of the rod sleeve being provided with a slot for passage of a connecting rod.

7. The arrester sheath installation tool of claim 6, wherein a pull rod is nested in the rod sleeve, one end of the pull rod is fixed with the sliding block, and the other end of the pull rod extends out of the rod sleeve.

8. The arrester sheath installation tool of claim 1, wherein the plate body has a fixing seat at an end thereof adjacent to the rod sleeve, and the fixing seat is fixedly connected to the rod sleeve.

9. The arrester sheath installation tool of claim 1 wherein the through slot is a U-shaped slot with a bend in the U-shaped slot disposed away from the mounting surface, and the recess is a square slot.

10. The arrester sheath installation tool of claim 1 wherein the plate body is a flat plate-shaped structure.