CN212032979U

CN212032979U - Auxiliary tool for replacing high-voltage fuse

Info

Publication number: CN212032979U
Application number: CN202020085850.7U
Authority: CN
Inventors: 刘浩
Original assignee: Hengte Electric Co ltd
Current assignee: Hengte Electric Co ltd
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-11-27
Anticipated expiration: 2030-01-15

Abstract

The utility model discloses a high-voltage fuse replacement auxiliary tool in the technical field of fuse maintenance tools, which comprises a framework plate and a fuse, wherein the fuse comprises an insulator, a shed, an inner spring and an end cap, the shed is distributed on the insulator, the framework plate is a long strip-shaped plate, one side of the surface of the framework plate is provided with a shed clamping ring, the shed clamping ring consists of a pair of arc rods, the arc rods are rotationally connected with the surface of the framework plate through pin shafts, the other end of the shed clamping ring is connected with an end plate, the end plate is provided with a U-shaped pull rod, when the high-voltage fuse replacement auxiliary tool is used, one hand folds the shed clamping ring on the insulator of the fuse, the end cap is arranged in the cap, the other hand rotates a knob, and a screw pushes the cap forwards to enable the end cap to be close to a flange on the insulator, thereby facilitating the installation of the cap after replacement, simple structure, convenient operation and carrying, practicability and popularization value.

Description

Auxiliary tool for replacing high-voltage fuse

Technical Field

The utility model relates to a fuse repair tools technical field specifically is a high-voltage fuse changes appurtenance.

Background

The high-voltage current-limiting fuse is suitable for a system with the AC 50HZ and the rated voltages of 10KV and 35KV, and can also be used for overload or short-circuit protection of electric power equipment such as a motor, a transformer, a capacitor, a power cable and the like. The high-voltage current-limiting fuse has a simple structure and comprises a porcelain sleeve, a fuse tube, a spring and a wiring end cap. The insulator includes that both ends open-ended hollow insulated column and the outside annular of insulated column are protruding, and the annular is protruding to be called the full skirt, and the effect of full skirt makes insulator surface protruding, improves creepage distance, reduces and attaches the filth volume, protection insulated column. The fuse tube is installed in the porcelain bushing, the two ends of the fuse tube are pressed into the porcelain bushing through the wiring end caps, the spring is pressed into the fuse tube, and the wiring end caps are locked with the clamps on the insulating columns through bolts.

When the high-voltage current-limiting fuse is overloaded, the fuse tube of the high-voltage current-limiting fuse is fused, and the protection function is achieved. After the fuse tube of the high-voltage current-limiting fuse is fused, maintenance personnel are required to manually replace the fuse tube, the replacement operation is not difficult, and the fuse tube inside can be taken out and replaced only by opening the wiring end cap at one end of the porcelain sleeve. The replacement process is as follows: the bolt on the end cap of will working a telephone switchboard of instrument is unscrewed commonly, makes the end cap of working a telephone switchboard and the porcelain bushing separation, takes out spring and fuse tube in proper order, changes new fuse tube, puts into the porcelain bushing, puts into the spring again, and the manual work compresses tightly the end cap of working a telephone switchboard on the porcelain bushing with the hand, here is in order to overcome the elasticity of spring, and last alone when compressing tightly with the hand, another person need be rapidly with two bolts with the end cover and clamp tightening atress at least, 4 bolts of tightening again, change the completion.

The fuse tube of changing high pressure current-limiting fuse at present all is manually operation to there is not specialized tool, it is great that it changes in-process spring force, the mode that spring force was overcome to the crimping line end cap of palm messenger's strength is very inconvenient, just can't compress tightly the wiring end cap to the less maintenance personal of strength, still need two people to cooperate to accomplish under the normal condition, thereby often make wiring end cap, clamp production move the position because of need overcoming spring force at the change in-process and lead to the screw eye to inaccurate, the bolt drops. In addition, the force can be applied only after at least two bolts are simultaneously tightened, the bolt can be flicked off by carelessness after one bolt is tightened, and the bolt falls and flicks.

Based on this, the utility model designs a high-voltage fuse changes appurtenance to solve the above-mentioned problem that appears.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-voltage fuse changes appurtenance to solve the problem in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a high-voltage fuse replacement auxiliary tool comprises a framework plate and a fuse, wherein the fuse comprises an insulator, an umbrella skirt, an inner spring and an end cap, the umbrella skirt is distributed on the insulator, the framework plate is a long strip-shaped plate, an umbrella skirt clamping ring is arranged on one side of the surface of the framework plate and consists of a pair of arc rods, the arc rods are rotatably connected with the surface of the framework plate through pin shafts, the other end of the umbrella skirt clamping ring is connected with an end plate, a U-shaped pull rod is arranged on the end plate, the replacement auxiliary tool is clamped between the umbrella skirts of the fuse by folding the umbrella skirt clamping ring, a connecting plate is arranged at the right end of the surface of the framework plate, a screw rod penetrates through the middle part of the connecting plate, a knob is arranged at the outer end of the screw rod, a slide rail is arranged on one side of the middle part of the surface of the connecting plate, a cap is mounted on, the end cap is disposed within the slot of the cap and the inner spring is abutted between the end cap and the fuse.

Preferably, the shed clamping rings are provided with a plurality of groups, and the intervals among the shed clamping rings are adapted to the position of the shed on the fuse.

Preferably, a buffer rubber pad is arranged on the inner arc surface of the arc rod.

Preferably, the U-shaped pull rod is sleeved with a rubber sleeve.

Preferably, the shed clamping ring is made of hard plastics.

Preferably, the cap comprises a cylindrical block, a cap groove is formed in the middle of the circular surface on one side of the cylindrical block, a limiting block is arranged on the outer annular wall of the cylindrical block, and an isosceles trapezoid groove is formed in the limiting block.

Preferably, the cross section of the slide rail is isosceles trapezoid matched with the isosceles trapezoid groove.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses during the use, one hand folds the full skirt clamp ring on the insulator of fuse, arranges the cap in, and the rotatory knob of another hand promotes the cap forward for the cap is close to flange on the insulator, thereby is convenient for install the cap after changing, and simple structure, operation and carry are all very convenient, have the practicality, are worth promoting.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the present invention;

FIG. 3 is a schematic view of the retaining ring and the frame plate of the umbrella skirt of the present invention;

fig. 4 is a schematic view of the cap of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-framework plate, 2-arc rod, 3-first end plate, 4-U-shaped pull rod, 5-insulator, 6-umbrella skirt, 7-inner spring, 8-end cap, 9-connecting plate, 10-screw, 11-knob, 12-cap, 13-sliding rail, 21-buffer rubber pad, 41-rubber sleeve, 121-cylindrical block, 122-cap groove, 123-limiting block and 124-isosceles trapezoid groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: a high-voltage fuse replacement auxiliary tool comprises a framework plate 1 and a fuse, the fuse comprises an insulator 5, an umbrella skirt 6, an inner spring 7 and an end cap 8, the umbrella skirt 6 is distributed on the insulator 5, the framework plate 1 is a long-strip-shaped plate, an umbrella skirt clamping ring is arranged on one side of the surface of the framework plate 1 and consists of a pair of arc rods 2, the arc rods 2 are rotatably connected with the surface of the framework plate 1 through pin shafts, the other end of the umbrella skirt clamping ring is connected with an end plate 3, a U-shaped pull rod 4 is arranged on the end plate 3, the replacement auxiliary tool is clamped between the umbrella skirts 6 of the fuse through closing the umbrella skirt clamping ring, a connecting plate 9 is arranged at the right end of the surface of the framework plate 1, a screw rod 10 is arranged in the middle of the connecting plate 9 in a penetrating mode, a knob 11 is arranged at the outer end of the screw rod 10, a slide rail 13, the inner end of the screw 10 abuts against the back surface of the cap 12, the end cap 8 is arranged in the slotted hole of the cap 12, and the inner spring 7 abuts between the end cap 8 and the fuse.

Furthermore, the umbrella skirt clamp rings are provided with a plurality of groups, and the space between the umbrella skirt clamp rings of the plurality of groups is adapted to the position of the umbrella skirt 6 on the fuse.

Further, a cushion rubber pad 21 is arranged on the inner arc surface of the arc rod 2.

Further, a rubber sleeve 41 is sleeved on the U-shaped pull rod 4.

Furthermore, the umbrella skirt clamping ring is made of hard plastics.

Further, the cap 12 includes a cylindrical block 121, a cap groove 122 is formed in the middle of a circular surface on one side of the cylindrical block 121, a stopper 123 is formed on an outer circumferential wall of the cylindrical block 121, and an isosceles trapezoid groove 124 is formed in the stopper 123.

Further, the cross section of the slide rail 13 is isosceles trapezoid matched with the isosceles trapezoid-shaped groove 124.

After the internal fuse tube is replaced, the shed clamping ring is aligned to the insulator 5 of the fuse by one hand to be folded, the end cap 8 is arranged in the cap 12, the knob 11 is rotated by the other hand, the screw rod 10 pushes the cap 12 forwards, so that the end cap 8 is close to the flange on the insulator 5, the cap is convenient to replace and mount, the structure is simple, the operation and the carrying are both convenient, the safety fuse tube is practical, and the safety fuse tube is worth popularizing.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a high-voltage fuse changes appurtenance, should change appurtenance including skeleton board (1) and fuse, its characterized in that: the fuse comprises an insulator (5), an umbrella skirt (6), an inner spring (7) and an end cap (8), the umbrella skirt (6) is distributed on the insulator (5), the framework plate (1) is a strip-shaped plate, an umbrella skirt clamping ring is arranged on one side of the surface of the framework plate (1), the umbrella skirt clamping ring is composed of a pair of arc rods (2), the arc rods (2) are rotatably connected with the surface of the framework plate (1) through pin shafts, the other end of the umbrella skirt clamping ring is connected with an end plate (3), a U-shaped pull rod (4) is arranged on the end plate (3), a replacement auxiliary tool is clamped between the umbrella skirts (6) of the fuse through closing the umbrella skirt clamping ring, a connecting plate (9) is arranged at the right end of the surface of the framework plate (1), a screw rod (10) penetrates through the middle of the connecting plate (9), a knob (11) is arranged at the outer end of the screw rod (10, slide rail (13) are equipped with on one side of the face middle part of connecting plate (9), install cap (12) on slide rail (13), screw rod (10) inner end butt cap (12) back, cap (8) are arranged in the slotted hole of cap (12), inner spring (7) butt is between cap (8) and fuse.

2. A high-voltage fuse replacement aid as claimed in claim 1, wherein: the umbrella skirt clamp rings are provided with a plurality of groups, and the space between the umbrella skirt clamp rings of the plurality of groups is adapted to the position of an umbrella skirt (6) on the fuse.

3. A high-voltage fuse replacement aid as claimed in claim 1, wherein: and a buffer rubber pad (21) is arranged on the inner arc surface of the arc rod (2).

4. A high-voltage fuse replacement aid as claimed in claim 1, wherein: the U-shaped pull rod (4) is sleeved with a rubber sleeve (41).

5. A high-voltage fuse replacement aid as claimed in claim 1, wherein: the umbrella skirt clamping ring is made of hard plastics.

6. A high-voltage fuse replacement aid as claimed in claim 1, wherein: the cap (12) comprises a cylindrical block (121), a cap groove (122) is formed in the middle of the circular surface on one side of the cylindrical block (121), a limiting block (123) is arranged on the outer annular wall of the cylindrical block (121), and an isosceles trapezoid groove (124) is formed in the limiting block (123).

7. A high-voltage fuse replacement aid as claimed in claim 1, wherein: the cross section of the sliding rail (13) is isosceles trapezoid matched with the isosceles trapezoid-shaped groove (124).