CN212908658U

CN212908658U - High-voltage metering cabinet

Info

Publication number: CN212908658U
Application number: CN202021762870.XU
Authority: CN
Inventors: 詹勋波; 李尚林; 张梅娇; 李冬林; 詹国银; 翁孟珍
Original assignee: Guangdong Tebian Electric Co ltd
Current assignee: Guangdong Tebian Electric Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-04-06
Anticipated expiration: 2030-08-21

Abstract

The utility model discloses a high-voltage metering cabinet, which comprises a cabinet body, wherein a movable metering handcart is arranged in the cabinet body, the metering handcart comprises an L-shaped bracket and a chassis arranged at the bottom of the L-shaped bracket, first guide wheels are arranged on two sides of the chassis, and second guide wheels are arranged on two sides of the top of the L-shaped bracket; the inner wall of the cabinet body is provided with a first guide rail which is in sliding fit with the first guide wheel and the second guide wheel respectively. Increase the second guide pulley through the both sides at the top of L shape support for the upper and lower below of L type support all can be through guide pulley and guide rail cooperation, and on the one hand dispersion atress avoids weight to concentrate on the first guide pulley of chassis car, and on the other hand can make the removal process of measurement handcart more stable.

Description

High-voltage metering cabinet

Technical Field

The utility model relates to a high-pressure metering cabinet equipment technical field especially relates to a high-pressure metering cabinet.

Background

In the whole high-voltage electrical system, the metering problem is a critical one, since it concerns the safety and stability of the electricity consumption of the power supply bureau and the electricity consumption unit. Therefore, a high-voltage metering cabinet is used, a drawing part is arranged in the high-voltage metering cabinet, main electrical elements in the cabinet are mounted on the high-voltage metering cabinet, namely a handcart generally known by people, a chassis vehicle is arranged at the bottom of the handcart, and the handcart can be drawn out by matching the chassis vehicle with a guide rail mounted in the cabinet so as to overhaul or replace the electrical elements.

However, a handcart in the existing high-voltage metering cabinet only has a chassis vehicle which is in sliding fit with a guide rail, when electrical elements on the handcart are more and heavier, the handcart may not be stable in the moving process, and a guide wheel on the chassis vehicle can bear overlarge load, so that the service life is seriously shortened; in addition, if the operation of an operator is careless, the handcart is easy to directly fall off the guide rail and fall to the ground, and electrical elements are damaged.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses aim at solving one of above-mentioned problem to a certain extent at least, provide a high-pressure measuring cabinet, can solve the handcart structure of current high-pressure measuring cabinet problem firm inadequately.

The technical scheme of the utility model is realized like this:

a high-voltage metering cabinet comprises a cabinet body, wherein a movable metering handcart is arranged in the cabinet body, the metering handcart comprises an L-shaped support and a chassis arranged at the bottom of the L-shaped support, first guide wheels are arranged on two sides of the chassis, and second guide wheels are arranged on two sides of the top of the L-shaped support; the inner wall of the cabinet body is provided with a first guide rail which is in sliding fit with the first guide wheel and the second guide wheel respectively.

As a further alternative of the high-voltage metering cabinet, one end of the first guide rail is closed, and the other end of the first guide rail is provided with an opening for the first guide wheel or the second guide wheel to enter and exit; the opening is provided with a blocking mechanism.

As a further alternative of the high-voltage metering cabinet, the blocking mechanism comprises a second guide rail and a clamping strip, wherein the second guide rail extends from the opening of the first guide rail to the upper side and the lower side respectively, and the clamping strip is arranged in the second guide rail in a sliding manner; the inner wall of the second guide rail is provided with a telescopic clamping piece, and the clamping strip is provided with a clamping hole in clamping fit with the clamping piece; the two clamping holes on the clamping strip are respectively corresponding to the clamping pieces on the second guide rail on the upper side and the lower side of the first guide rail.

As a further alternative of the high-voltage metering cabinet, the clamping member is a wave bead screw, the wave bead screw is fixed in a threaded hole in the inner wall of the second guide rail, and a wave bead of the wave bead screw protrudes out of the inner wall of the second guide rail.

As a further alternative of the high-voltage metering cabinet, the number of the first guide wheels on each side of the chassis truck is two, the number of the second guide wheels on each side of the top of the L-shaped bracket is one, and the two first guide wheels and the one second guide wheel are distributed according to the end points of a right-angled triangle.

As a further alternative of the high-voltage metering cabinet, a current transformer and a voltage transformer are arranged on the L-shaped support, a fuse is connected between the current transformer and the voltage transformer, a contact arm is connected to the current transformer, and the end of the contact arm is connected with a plum blossom contact.

The beneficial effects of the utility model are that: increase the second guide pulley through the both sides at the top of L shape support for the upper and lower below of L type support all can be through guide pulley and guide rail cooperation, and on the one hand dispersion atress avoids weight to concentrate on the first guide pulley of chassis car, and on the other hand can make the removal process of measurement handcart more stable.

Drawings

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

Fig. 1 is a schematic structural view of a high-voltage metering cabinet of the present invention;

fig. 2 is a schematic diagram of the metering handcart matching with the first guide rail;

fig. 3 is an exploded view of the metering hand truck and the first rail;

FIG. 4 is a schematic view of the first and second rails;

FIG. 5 is a schematic structural view of the card strip;

FIG. 6 is a schematic structural view of the first rail with the opening closed;

fig. 7 is a schematic structural view of the opening of the first guide rail in an open state.

In the figure: 1. a cabinet body; 2. a metering handcart; 21. an L-shaped bracket; 211. a second guide wheel; 22. a chassis truck; 221. a first guide wheel; 23. a current transformer; 24. a voltage transformer; 25. a fuse; 26. a contact arm; 27. a tulip contact; 3. a first guide rail; 31. an opening; 4. a blocking mechanism; 41. a second guide rail; 411. A ball screw; 42. clamping the strip; 421. and (6) clamping the hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-7, a high-voltage metering cabinet comprises a cabinet body 1, wherein a movable metering handcart 2 is arranged in the cabinet body 1, the metering handcart 2 comprises an L-shaped support 21 and a chassis 22 arranged at the bottom of the L-shaped support 21, first guide wheels 221 are arranged on two sides of the chassis 22, and second guide wheels 211 are arranged on two sides of the top of the L-shaped support 21; the inner wall of the cabinet body 1 is provided with a first guide rail 3 which is respectively in sliding fit with the first guide wheel 221 and the second guide wheel 211.

So, increase second guide pulley 211 in the both sides at the top of L shape support for L type support 21 all can be through guide pulley and guide rail cooperation from top to bottom, and on the one hand dispersion atress avoids weight to concentrate on the first guide pulley 221 of chassis car 22, and on the other hand can make the removal process of measurement handcart 2 more stable.

In some specific embodiments, in order to further improve the stability of the metering handcart 2 during movement, the number of the first guide wheels 221 on each side of the chassis 22 is two, the number of the second guide wheels 211 on each side of the top of the L-shaped bracket 21 is one, and the two first guide wheels 221 and the one second guide wheel 211 are distributed according to the end points of a right triangle.

In some specific embodiments, in order to avoid the situation that the metering handcart 2 damages electrical components due to accidental fall and drop, referring to fig. 2 and 3, one end of the first guide rail 3 is closed, and the other end is provided with an opening 31 for the first guide wheel 221 or the second guide wheel 211 to enter and exit; the blocking mechanism 4 is arranged at the opening 31. In brief, the blocking mechanism 4 opens or closes the opening 31 on the first guide rail 3, so that the first guide wheel 221 and the second guide wheel 211 are prevented from coming off from the first guide rail 3, and the metering handcart 2 is prevented from accidentally coming off from the first guide rail 3.

In the above solution, referring to fig. 4 and fig. 5 again, the blocking mechanism 4 includes second guide rails 41 respectively extending from the opening 31 of the first guide rail 3 to the upper and lower sides, and a clamping strip 42 slidably disposed in the second guide rails 41; a telescopic clamping piece is arranged on the inner wall of the second guide rail 41, and a clamping hole 421 matched with the clamping piece in a clamping way is arranged on the clamping strip 42; two of the fastening holes 421 on the fastening strip 42 correspond to the fastening pieces on the second rail 41 on the upper and lower sides of the first rail 3, respectively. For convenience of arrangement, the clamping member is a wave ball screw 411, the wave ball screw 411 is fixed in a threaded hole on the inner wall of the second guide rail 41, and a wave ball of the wave ball screw 411 protrudes out of the inner wall of the second guide rail 41.

Specifically, referring to fig. 6, which shows a structure when the opening 31 on the first guide rail 3 is in a closed state, the clamping strip 42 is disposed in the second guide rail 41, and two clamping holes 421 on the clamping strip 42 are respectively clamped on the ball screws 411 in the second guide rails 41 on the upper and lower sides, at this time, the clamping strip 42 blocks the opening 31, so that neither the first guide wheel 221 nor the second guide wheel 211 can be disengaged from the opening 31; when the opening 31 needs to be opened, the card strip 42 can move in the second guide rail 41, so that the card strip 42 moves upward or downward, when the card strip 42 moves vertically, the edge of the card hole 421 can press the bead screw 411, so that the beads on the bead screw 411 shrink, until another card hole 421 corresponds to the position of the bead screw 411, the beads on the bead screw 411 pop out and are clamped again; referring to fig. 7, the structure of the opening 31 of the first rail 3 is shown in an open state, such that one card hole 421 of the card strip 42 is snap-fitted with the bump screw 411, and the other card hole 421 is empty; in this way, the locking strip 42 neither blocks the opening 31 nor comes out of the second rail 41.

In practical application, when the metering handcart 2 needs to be drawn out, the opening 31 on the first guide rail 3 corresponding to the first guide wheel 221 can be opened only, so that the second guide wheel 211 on the metering handcart 2 cannot be pulled out of the first guide rail 3, and the metering handcart 2 is prevented from being pulled out completely due to too fast drawing; when the whole metering handcart 2 needs to be removed, the opening 31 on the first guide rail 3 corresponding to the second guide rail 41 is opened. Therefore, the pumping-out process of the metering handcart 2 is safe and reliable.

In the above scheme, referring to fig. 3, be equipped with current transformer 23 and voltage transformer 24 on the L type support 21, current transformer 23 with be connected with fuse 25 between the voltage transformer, be connected with on the current transformer 23 and touch arm 26, the end connection who touches arm 26 has plum blossom contact 27. It should be noted that, the electrical components on the L-shaped bracket 21 may be arranged in a manner similar to that in the prior art.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-voltage metering cabinet comprises a cabinet body, wherein a movable metering handcart is arranged in the cabinet body, and the high-voltage metering cabinet is characterized in that the metering handcart comprises an L-shaped support and a chassis arranged at the bottom of the L-shaped support, first guide wheels are arranged on two sides of the chassis, and second guide wheels are arranged on two sides of the top of the L-shaped support; the inner wall of the cabinet body is provided with a first guide rail which is in sliding fit with the first guide wheel and the second guide wheel respectively.

2. The high-voltage metering cabinet as claimed in claim 1, wherein one end of the first guide rail is closed, and the other end of the first guide rail is provided with an opening for the first guide wheel or the second guide wheel to enter and exit; the opening is provided with a blocking mechanism.

3. The high-voltage metering cabinet according to claim 2, wherein the blocking mechanism comprises a second guide rail extending upwards and downwards from the opening of the first guide rail respectively, and a clamping strip slidably arranged in the second guide rail; the inner wall of the second guide rail is provided with a telescopic clamping piece, and the clamping strip is provided with a clamping hole in clamping fit with the clamping piece; the two clamping holes on the clamping strip are respectively corresponding to the clamping pieces on the second guide rail on the upper side and the lower side of the first guide rail.

4. The high-voltage metering cabinet according to claim 3, wherein the clamping member is a wave ball screw, the wave ball screw is fixed in a threaded hole on the inner wall of the second guide rail, and a wave ball of the wave ball screw protrudes out of the inner wall of the second guide rail.

5. The high-voltage metering cabinet as claimed in claim 1, wherein the number of the first guide wheels on each side of the chassis is two, the number of the second guide wheels on each side of the top of the L-shaped bracket is one, and the two first guide wheels and the one second guide wheel are distributed according to the end points of a right triangle.

6. The high-voltage metering cabinet according to claim 1, wherein a current transformer and a voltage transformer are arranged on the L-shaped support, a fuse is connected between the current transformer and the voltage transformer, a contact arm is connected to the current transformer, and a plum blossom contact is connected to the end of the contact arm.