CN219695182U

CN219695182U - Grounding fault positioning instrument with AC/DC voltage withstanding function

Info

Publication number: CN219695182U
Application number: CN202320123964.XU
Authority: CN
Inventors: 刘玉龙; 杨同波; 李文; 官雪琴
Original assignee: Yunnan Camer Technology Co ltd
Current assignee: Yunnan Camer Technology Co ltd
Priority date: 2023-01-11
Filing date: 2023-01-11
Publication date: 2023-09-15
Anticipated expiration: 2033-01-11

Abstract

The utility model relates to the field of fault locating instruments, and particularly discloses a grounding fault locating instrument with alternating current and direct current withstand voltage, wherein a machine body is arranged in an inner box body, a first waterproof gap is formed between an outer box body and the inner box body, elastic support columns connected with the inner box body are arranged at the bottom and the inner side wall in the outer box body, and a buffer ball connected with the inner box body is arranged at the top angle of the inner side surface of the inner box body; a pressing plate which can be clamped with the opening of the inner box body is arranged in the cover body, the pressing plate is fixed at the top of the cover body through an elastic pressing rod, a second waterproof gap is formed between the pressing plate and the cover body, an annular convex ring is arranged on the surface of the pressing plate, which is close to the inner box body, and a third annular groove for pressing in the top edge of the inner box body is arranged on the convex ring; a foam cushion is arranged in the convex ring, and dust collection cloth is arranged at the top of the foam cushion. The triple waterproof structure can realize horizontal and vertical buffering, and the dust removal effect can be achieved in the buffering process.

Description

Grounding fault positioning instrument with AC/DC voltage withstanding function

Technical Field

The utility model relates to the field of fault locators, in particular to a ground fault locator with alternating current and direct current withstand voltage.

Background

The relay protection and the control in the transformer substation adopt direct current power supply, so whether the state of a direct current power supply system of the transformer substation is safe directly influences the running state of the transformer substation. The direct current system ground fault is a fault which is easy to occur and has great harm to the power system.

The prior art discloses the application number: the utility model provides a portable direct current system ground fault locator of CN201920482666.3, includes the fixing base, the top fixed mounting of fixing base has the collecting seat, the collecting tank has been seted up at the top of collecting seat, two first springs of fixed mounting symmetry setting on the bottom inner wall of collecting tank, the top fixed mounting of two first springs has same movable plate, but this prior art trouble location examination send appearance is difficult for carrying, and is less than satisfactory in portable transportation.

Patent No. ZL 202021341781.8 discloses a novel alternating current-direct current fault location examination send appearance, including first protective housing, unable adjustment base, convenient handle, fine adjustment button, display panel, adjust knob, lamina tecti, panel board, second protective housing, connecting piece, test wire, mounting base, unable adjustment base and convenient handle are integrated structure, the back embedding of convenient handle is installed in first protective housing's positive terminal surface, the top of first protective housing is equipped with display panel, unable adjustment base's upper end welds with the lower extreme of connecting piece, the upper end of connecting piece is connected with the lower extreme of second protective housing, the back embedding of panel board is installed in lamina tecti's positive terminal surface, adjust knob is located display panel's top, fine adjustment button's back embedding is installed in unable adjustment base's positive terminal surface, test wire embedding is installed in mounting base's positive terminal surface, mounting base and unable adjustment base are integrated structure, lamina tecti and second protective housing are integrated structure. But the AC/DC fault locator is generally used outdoors, and in the use process, the existing AC/DC fault locator is found, the waterproof is only provided with a sealing ring, and if the waterproof is anti-falling, only a sponge cushion is arranged, so that the triple waterproof of the machine body cannot be realized, the horizontal and vertical buffering cannot be realized by means of a triple waterproof structure, and the dust removal effect cannot be realized by means of the buffering process.

Disclosure of Invention

In order to solve the problems, the utility model provides the ground fault locator with the AC/DC voltage withstand, which can realize triple waterproof, can realize horizontal and vertical buffering by means of a triple waterproof structure, and can also achieve the dust removal effect in the buffering process.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a possess withstand voltage earth fault locator of alternating current-direct current, includes the case of rectangle and locates the organism in the case, and the case includes the box that the opening is upwards and the lid of connecting the box, the box includes the outer box that can with the lid joint and is located the interior box of outer box, the organism is located in the interior box, forms first waterproof clearance between outer box and the interior box, bottom and inside wall all are equipped with the elastic support column of connecting the interior box in the outer box, interior box medial surface apex angle department is equipped with the buffer ball of connecting the interior box; the edge of the opening of the outer box body is provided with a first annular groove, a second annular groove is formed in the position, which is pressed by the cover body, of the outer box body, a first sealing ring is pressed between the first annular groove and the second annular groove, a pressing plate which can be clamped with the opening of the inner box body is arranged in the cover body, the pressing plate is fixed at the top of the cover body through an elastic pressing rod, a second waterproof gap is formed between the pressing plate and the cover body, an annular convex ring is arranged on the surface, which is close to the inner box body, of the pressing plate, and a third annular groove for pressing in the edge of the top of the inner box body is formed in the convex ring; a second sealing ring is arranged in the third annular groove, a sponge cushion is arranged in the convex ring, and dust collection cloth is arranged on the surface of the sponge cushion, which is close to the top of the machine body; the upper surface of the machine body is provided with two fan openings, the fan openings are provided with fans, and the fan openings are provided with air guide sheets.

When the sealing device is used, the outer box body and the cover body realize first heavy water resistance, and the sealing effect of the outer box body and the cover body is improved due to the first annular groove, the first sealing ring and the second annular groove; the inner box body and the pressing plate realize second water resistance, and the sealing effect of the inner box body and the pressing plate is improved by the second sealing ring and the third annular groove; the elastic supporting rod, the elastic pressing rod and the buffer ball realize the suspended installation of the inner box body, and even if water enters the outer box body, the water stays in the first waterproof gap and the second waterproof gap and cannot contact the inner box body and the pressing plate, so that third heavy waterproof is realized;

secondly, the elastic support columns and the buffer balls further realize horizontal buffer and vertical buffer of the inner box body, namely, the third waterproof effect is realized, and meanwhile, the horizontal buffer and vertical buffer effects of the machine body are also realized;

in addition, in the transportation process, the cover body can be downward when dust removal is needed, and when the box vibrates or shakes, the buffer balls, the elastic support columns and the elastic pressing rods can drive the box body to shake, so that dust is shaken from the fan opening to the surface of the dust collection cloth, and the dust removal effect is achieved;

in conclusion, the product can realize triple waterproof, can realize horizontal and vertical buffering by means of a triple waterproof structure, and can also achieve the dust removal effect in the buffering process.

The box body is opened, and the fan can cool the machine body in the use process of the machine body.

Further, the elastic support column is a rubber column, and the buffer ball is a silica gel ball. The elastic buffering effect and the supporting effect of the rubber column are good, the impact of the top angle of the box is larger, and the buffering effect of the silica gel ball is better.

In summary, the utility model has the following beneficial effects: the triple waterproof structure can realize horizontal and vertical buffering, and the dust removal effect can be achieved in the buffering process.

Drawings

FIG. 1 is a schematic view of the structure of the present utility model without a platen;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is a schematic view of a cover structure according to the present utility model;

wherein, the machine body 1 and the wind guide plate 11; the box body 2, the outer box body 21, the inner box body 22, the first waterproof gap 23, the elastic support columns 24, the buffer balls 25 and the first sealing rings 26; the cover body 3, the second annular groove 31, the pressing plate 32, the convex ring 33, the third annular groove 34 and the second sealing ring 35; a dust collection cloth 4; a fan 5; a second waterproof gap 6; a sponge cushion 7; the lever 8 is elastically pressed.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-3, the earth fault locator with ac/dc voltage withstand comprises a rectangular box and a machine body 1 arranged in the box, wherein the machine body 1 is optionally 202021341781.8, preferably, a power switch 1f, a charging & arc grounding adapter power interface 1a, a controller 1b, a high-voltage output 1c, a test ground interface 1d and a protection ground interface 1e can be arranged on the top surface of the machine body 1, two fan openings are further arranged on the top surface of the machine body 1, a fan 5 is arranged in the fan opening, and an air guide plate 11 is arranged at the fan opening. The box comprises a box body 2 and a cover body 3, wherein the box body 2 is connected with the cover body 3, namely, the opening of the box body 2 faces upwards.

The improvement of the product is that: the box body 2 comprises an outer box body 21 and an inner box body 22, the openings of the outer box body 21 and the inner box body 22 are upward, the outer box body 21 can be connected with the cover body 3 in a clamping mode, the bottom edge of the cover body 3 is hinged to the rear side of the top of the outer box body 21, the top edge of the cover body 3 can be connected with the front side of the top of the box body 1 in a clamping mode, and a clamping structure similar to that on an existing suitcase is arranged between the cover body 3 and the outer box body 21.

The inner box body 22 is located in the outer box body 21, the machine body 1 is arranged in the inner box body 22, a first waterproof gap 23 is formed between the outer box body 21 and the inner box body 22, elastic support columns 24 are arranged at the inner bottom and the inner side wall of the outer box body 21, the elastic support columns 24 are connected with the inner box body, and rubber columns are preferably selected as the elastic support columns 24.

The top angle of the inner side surface of the inner box body 22 is provided with a buffer ball 25, the buffer ball 25 is also connected with the inner box body, and the buffer ball 25 is preferably a silica gel ball and is preferably a hemispherical shape.

The top opening edge of the outer box body 21 is provided with a first annular groove, the cover body 3 is provided with a second annular groove 31 in a position for pressing the outer box body 21, a first sealing ring 26 is pressed between the first annular groove and the second annular groove 31, a pressing plate 32 is arranged in the cover body 3, the pressing plate 32 can be clamped with the opening of the inner box body 22, the inner box body 22 is further sealed, a convex part is preferably arranged on the outer wall of the inner box body 22, a convex hook is arranged on the periphery of the convex ring 33, and then when the cover body 3 is closed, the convex hook hooks the convex part under the action force of extrusion, and the pressing plate 32 is fixed on the inner top of the cover body 3 through an elastic pressing rod 8. As shown in fig. 2 and 3, a second waterproof gap 6 is formed between the pressing plate 32 and the cover body 3, an annular convex ring 33 is arranged on the surface of the pressing plate 32, which is close to the inner box body 22, a third annular groove 34 is arranged on the convex ring 33, and the third annular groove 34 is used for pressing in the top edge of the inner box body 22; a second sealing ring 35 is arranged in the third annular groove 34, a foam cushion 7 is arranged in the convex ring 33, one surface of the foam cushion 7 is adhered to the surface of the pressing plate 32, the other surface of the foam cushion 7 can be adhered to the top of the machine body 1, and a dust collection cloth 4 is adhered to the other surface of the foam cushion 7, and the dust collection cloth is selected from the existing products; furthermore, the first sealing ring and the second sealing ring are both rubber rings.

When the fan is used, the cover body 1 can be opened to plug the circuit to be connected on the machine body 1, so that the fan can be used, the fan 5 is started according to 202021341781.8 in the use process, one fan port is used for air inlet, and the other fan port is used for air outlet, so that the heat dissipation effect of the machine body 1 is achieved.

When in need of carrying, the cover body 3 is covered, the cover body 3 is clamped with the outer box body 21, the first sealing ring 26 is pressed between the first annular groove and the second annular groove 31, and sealing between the cover body 3 and the outer box body 21 is realized; meanwhile, the pressing plate 32 is driven to press the inner box 22, the convex hooks hook the convex parts under the extrusion action, and then the top edge of the inner box 22 presses the second sealing ring 35 in the third annular groove 34, so that the sealing between the pressing plate 32 and the inner box 22 is realized.

When vibration is generated, the elastic support columns 24 on the inner side wall of the outer box body 21 can play a role in horizontal buffering in front, back, left and right, and the elastic support columns 24 on the inner bottom wall of the outer box body 21 and the elastic pressing rod 8 can play a role in vertical buffering. In addition, the cover body 3 can be downward, and dust which is shaken out from the interface or the fan port of the machine body 1 can be absorbed by the dust collection cloth 4, so that dust can be removed while vibration is prevented.

When raining, the cover body 3, the outer box body 21, the first annular groove, the second annular groove 31 and the first sealing ring 26 realize the sealing and water resistance of the first layer; the pressing plate 32, the inner box 22, the second sealing ring 35 and the third annular groove 34 realize the second-layer sealing waterproof; the elastic supporting column, the buffer ball and the elastic pressing rod 8 can realize the suspension of the inner box 22, and even if water enters the outer box, the water only exists in the first waterproof gap 23 and the second waterproof gap 6 and cannot contact the inner box 22, so that third heavy waterproof is realized.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a possess withstand voltage earth fault locator of alternating current-direct current, includes the box of rectangle and locates organism (1) in the box, and the box includes box (2) and lid (3) of connecting box (2) that the opening is upwards, its characterized in that: the box body (2) comprises an outer box body (21) which can be clamped with the cover body (3) and an inner box body (22) which is positioned in the outer box body (21), the machine body (1) is arranged in the inner box body (22), a first waterproof gap (23) is formed between the outer box body (21) and the inner box body (22), elastic support columns (24) connected with the inner box body are arranged at the inner bottom and the inner side wall of the outer box body (21), and buffer balls (25) connected with the inner box body are arranged at the top angle of the inner side surface of the inner box body (22); the edge of the opening of the outer box body (21) is provided with a first annular groove, a second annular groove (31) is formed in the position, pressed by the cover body (3), of the outer box body (21), a first sealing ring (26) is pressed between the first annular groove and the second annular groove (31), a pressing plate (32) which can be clamped with the opening of the inner box body (22) is arranged in the cover body (3), and the pressing plate (32) is fixed at the inner top of the cover body (3) through an elastic pressing rod (8); a second waterproof gap (6) is formed between the pressing plate (32) and the cover body (3), an annular convex ring (33) is arranged on the surface of the pressing plate (32) close to the inner box body (22), and a third annular groove (34) for pressing in the top edge of the inner box body (22) is arranged on the convex ring (33); a second sealing ring (35) is arranged in the third annular groove (34), a foam cushion (7) is arranged in the convex ring (33), and dust collection cloth (4) is arranged on the surface of the foam cushion (7) which is tightly adhered to the top of the machine body (1); the upper surface of the machine body (1) is provided with two fan openings, a fan (5) is arranged in the fan opening, and an air guide sheet (11) is arranged at the fan opening.

2. The earth fault locator with ac/dc withstand voltage according to claim 1, characterized in that: the elastic support columns (24) are rubber columns, and the buffer balls (25) are silica gel balls.