Short-circuit protective cover for live-line replacement of direct-in three-phase four-wire system electric energy meter

Abstract

The invention discloses a live-line replacement direct-in three-phase four-wire system electric energy meter short circuit protective cover, and belongs to the technical field of electric energy meter protective covers, the live-line replacement direct-in three-phase four-wire system electric energy meter short circuit protective cover comprises a main cover plate, two side plates and a plurality of partition plates, the two side plates are respectively arranged on two sides of the main cover plate, and the plurality of partition plates are all arranged below the main cover plate; first sliding grooves corresponding to the two side plates are formed in the main cover plate, positioning pieces are arranged on the side plates and penetrate through the first sliding grooves to be exposed out of the upper surface of the main cover plate, a boss is arranged on each partition plate, a second sliding groove is formed in the main cover plate, the bosses are arranged in the second sliding grooves, and the positioning pieces are arranged in the second sliding grooves. The bosses are arranged on the partition plates and can move in the second sliding grooves to change the distance between the adjacent partition plates, and fixing pieces are arranged on the bosses and used for fixing the positions of the partition plates. And short circuit caused by wire contact during misoperation can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of electric energy meter protective covers, and in particular to a live-replacement direct-entry short-circuit protective cover for a three-phase four-wire electric energy meter. Background Art

[0002] The electric energy meter protective cover is a device designed to cover and protect the electric energy meter and its related equipment. Its main functions include dust prevention, waterproofing, anti-theft, anti-electric shock, anti-aging, anti-corrosion, and improving the safety and service life of the equipment. The protective cover can isolate people who come into contact with the power line to prevent electric shock accidents. At the same time, it can also prevent foreign objects from entering the meter box and causing circuit short circuits and other faults.

[0003] When replacing a direct-entry three-phase four-wire watt-hour meter, a live replacement work mode is usually adopted. Due to the design principle of the direct-entry three-phase four-wire watt-hour meter, the distance between the wiring holes of the phases is about 5mm, and the diameter of the power line connected to the watt-hour meter is generally 25-50mm. 2 When workers are performing live battery replacement operations, when inserting or removing one phase of the power cord, they may accidentally touch the exposed part of the other phase wire due to the small phase-to-phase hole spacing, causing a short circuit accident. Summary of the invention

[0004] The main purpose of the present invention is to provide a live-replacement direct-entry three-phase four-wire electric energy meter short-circuit protection cover, aiming to solve the problems of the above-mentioned background technology and improve applicability.

[0005] To achieve the above-mentioned purpose, the present invention proposes a live replacement direct-entry three-phase four-wire electric energy meter short-circuit protection cover, comprising a main cover plate, two side plates and a plurality of partition plates, the two side plates are respectively installed on both sides of the main cover plate, and the plurality of partition plates are all installed below the main cover plate;

[0006] The main cover plate is respectively provided with a first sliding groove corresponding to the two side plates, and the side plates are provided with a positioning piece, and the positioning piece passes through the first sliding groove and is exposed on the upper surface of the main cover plate. Each partition plate is provided with a boss, and the main cover plate is provided with a second sliding groove. The boss is installed in the second sliding groove and can move in the second sliding groove to change the distance between adjacent partition plates. The boss is provided with a fixing piece, and the fixing piece fixes the position of the partition plate.

[0007] Optionally, a positioning column is provided on the side plate, the positioning column is installed in the first sliding groove, and the positioning member is installed in the positioning column.

[0008] Optionally, an elastic member is provided in the positioning column, one end of the elastic member is connected to the top of the side plate, and the other end of the elastic member is connected to the bottom of the positioning member.

[0009] Optionally, a protrusion is provided at the bottom of the positioning member, and a plurality of positioning holes are provided on the main cover plate, wherein the plurality of positioning holes are located on one side of the first sliding groove, and the protrusion is inserted into one of the positioning holes to position the side plate.

[0010] Optionally, a waist-shaped hole is provided on the connection for connecting to a direct-entry three-phase four-wire electric energy meter.

[0011] Optionally, the main cover plate includes a first cover plate and a second cover plate, the first cover plate and the second cover plate are connected together by a connecting member, and the first cover plate and the second cover plate can be flipped by the connecting member.

[0012] Optionally, a limiting platform is provided on the positioning column, and the limiting platform abuts against the bottom of the first sliding groove.

[0013] Optionally, the first sliding groove and the second sliding groove are staggered and do not overlap.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The live-replacement direct-entry three-phase four-wire electric energy meter short-circuit protection cover of the technical solution of the present invention is provided with a second sliding groove on the main cover plate, and the partition plate is installed in the second sliding groove and can move in the second sliding groove, and the distance between adjacent partition plates can be changed according to actual conditions.

[0016] 2. By setting the positioning pieces and the positioning holes, the length of the side panels can be adjusted according to the actual situation, the length of the entire shield can be changed, and the applicability can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 This is a structural schematic diagram of an embodiment of live replacement of a short-circuit protection cover of a direct-entry three-phase four-wire electric energy meter in this application;

[0019] Figure 2 for Figure 1 A structural schematic diagram of the middle main cover plate;

[0020] Figure 3 A schematic diagram of a structure in which a positioning member is installed on a side plate;

[0021] Figure 4 for Figure 1 A structural schematic diagram of the middle side plate;

[0022] Figure 5 for Figure 1 A structural schematic diagram of the positioning member;

[0023] Figure 6 for Figure 1 A structural schematic diagram of the middle partition plate.

[0024] Description of Figure Numbers:

[0025]

[0026] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] The present invention provides a live replacement direct-entry three-phase four-wire electric energy meter short-circuit protection cover 100.

[0031] See also Figure 1-Figure 6In one embodiment of the present invention, the live replacement direct-entry three-phase four-wire electric energy meter short-circuit protection cover 100 includes a main cover plate 10, two side plates 20 and a plurality of partition plates 30, the two side plates 20 are respectively installed on both sides of the main cover plate 10, and the plurality of partition plates 30 are installed below the main cover plate 10;

[0032] The main cover plate 10 is provided with a first sliding groove 14 corresponding to the two side plates 20, and the side plates 20 are provided with a positioning member 40, and the positioning member 40 passes through the first sliding groove 14 and is exposed on the upper surface of the main cover plate 10, and each partition plate 30 is provided with a boss 31, and the main cover plate 10 is provided with a second sliding groove 13, and the boss 31 is installed in the second sliding groove 13 and can move in the second sliding groove 13 to change the distance between adjacent partition plates 30, and the boss 31 is provided with a fixing member 50, and the fixing member 50 fixes the position of the partition plate 30.

[0033] In this embodiment, there are two partition plates 30, which are separated from the side plates 20 on both sides to form four independent areas; wherein, the main cover plate 10, the side plate 20 and the partition plate 20 can all be made of transparent plastic such as PVC, which can not only effectively insulate, but also allow the insertion and removal positions of the wires to be observed with the naked eye.

[0034] Two first sliding grooves 14 are provided corresponding to each side plate 20, close to the two ends of the main cover plate 10 respectively, and the second sliding groove 13 is located between the first sliding grooves 14 on both sides; wherein the cross-sections of the first sliding groove 14 and the second sliding groove 13 are both in the shape of an inverted "convex" character, and the boss 31 is also in the shape of an inverted "convex" character, and when the boss 31 is installed in the second sliding groove 13, the partition plate 30 will not fall off the main cover plate 10. The number of the partition plates 30 can be added or reduced according to actual use conditions, and an independent space is formed between two adjacent partition plates 30, which can separate the wiring holes between the phases of the direct-entry three-phase four-wire electric energy meter, so as to avoid accidentally touching the exposed part of the other phase wire due to the small hole spacing between the phases when inserting or removing a phase power line, thereby preventing a short circuit accident.

[0035] It should be noted that the first sliding groove 14 and the second sliding groove 13 are staggered and do not overlap, and there will be no interference between the partition plate 30 and the side plate 20 .

[0036] The connection is provided with a waist-shaped hole 23 for connecting with a direct-entry three-phase four-wire electric energy meter, and a screw can be passed through the waist-shaped hole and fixed to the mounting hole of the electric energy meter.

[0037] The position of the partition plate 30 can also be adjusted according to the size of the direct-entry three-phase four-wire electric energy meter, the distance between adjacent partition plates 30 can be changed, and then the partition plate 30 can be fixed by the fixing member 50. The fixing member 50 can be a conventional stud.

[0038] In one embodiment of the present invention, a positioning column 21 is provided on the side panel 20, and the positioning column 21 is installed in the first sliding groove 14. The positioning member 40 is installed in the positioning column 21. An elastic member 60 is provided in the positioning column 21, and one end of the elastic member 60 is connected to the top of the side panel 20, and the other end is connected to the bottom of the positioning member 40.

[0039] In this embodiment, the positioning column 21 is hollow and has a limit platform 22 on it. The limit platform 22 abuts against the bottom of the first sliding groove 14 to prevent the side panel 20 from detaching from the main cover 10 and falling off. The elastic member 60 can be a tension spring. Under the tension of the elastic member 60, the bottom of the positioning member 40 is always in close contact with the upper surface of the main cover 10.

[0040] In one embodiment of the present invention, a protrusion 41 is provided at the bottom of the positioning member 40, and a plurality of positioning holes 15 are provided on the main cover plate 10. The plurality of positioning holes 15 are located on one side of the first sliding groove 14, and the protrusion 41 is inserted into one of the positioning holes 15 to position the side plate 20.

[0041] In this embodiment, the plurality of positioning holes 15 are arranged in sequence along the length direction of the first sliding groove 14. It can be understood that under the pulling force of the elastic member 60, the protrusion 41 is stuck in one of the positioning holes 15, and the position of the side panel 20 is fixed to prevent the side panel 20 from sliding easily. When it is necessary to adjust the extended length of the side panel 20, the positioning member 40 is lifted to make the protrusion disengage from the positioning hole 15. After the side panel 20 is moved to a suitable position, the positioning member 40 is released, so that the protrusion 41 is stuck in the positioning hole 15 at the corresponding position, and the position of the side panel 20 is fixed again; the width of the electric energy meter to be connected can be adjusted according to actual needs.

[0042] In one embodiment of the present invention, the main cover plate 10 includes a first cover plate 11 and a second cover plate 12 , the first cover plate 11 and the second cover plate 12 are connected together by a connecting member 70 , and both the first cover plate 11 and the second cover plate 12 can be flipped by the connecting member 70 .

[0043] In this embodiment, the connecting member 70 can be a micro hinge, but is not limited to this. The connecting member 70 is located on the upper surface of the first cover plate 11 and the second cover plate 12 to connect the two together. When not in use, the first cover plate 11 and the second cover plate 12 are flipped and folded with the connecting member 70 as the axis to reduce the occupied space and facilitate storage.

[0044] Working principle: The side panels 20 on both sides are connected to the direct-entry three-phase four-wire electric energy meter. The number of the partition panels 30 can be added or reduced according to actual usage. An independent space is formed between two adjacent partition panels 30, which can separate the wiring holes between the phases of the direct-entry three-phase four-wire electric energy meter to avoid accidentally touching the exposed part of the other phase wire when inserting or removing one phase power cord due to the small phase-to-phase hole distance, causing a short circuit accident. The extended length of the side panel 20 can also be adjusted to improve applicability.

[0045] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A live replacement direct-entry three-phase four-wire electric energy meter short-circuit protection cover, characterized in that: It includes a main cover plate, two side plates and a plurality of partition plates, wherein the two side plates are respectively installed on both sides of the main cover plate, and the plurality of partition plates are installed below the main cover plate; The main cover plate is respectively provided with a first sliding groove corresponding to the two side plates, and the side plates are provided with a positioning piece, and the positioning piece passes through the first sliding groove and is exposed on the upper surface of the main cover plate. Each partition plate is provided with a boss, and the main cover plate is provided with a second sliding groove. The boss is installed in the second sliding groove and can move in the second sliding groove to change the distance between adjacent partition plates. The boss is provided with a fixing piece, and the fixing piece fixes the position of the partition plate.

2. The live replacement direct-entry three-phase four-wire electric energy meter short-circuit protection cover according to claim 1 is characterized in that: The side plate is provided with a positioning column, the positioning column is installed in the first sliding groove, and the positioning member is installed in the positioning column.

3. The live replacement direct-entry three-phase four-wire electric energy meter short-circuit protection cover according to claim 2 is characterized in that: An elastic member is arranged in the positioning column, one end of the elastic member is connected to the top of the side plate, and the other end of the elastic member is connected to the bottom of the positioning member.

4. The live replacement direct-entry three-phase four-wire electric energy meter short-circuit protection cover according to claim 3 is characterized in that: A protrusion is provided at the bottom of the positioning member, and a plurality of positioning holes are provided on the main cover plate. The plurality of positioning holes are located at one side of the first sliding groove, and the protrusion is inserted into one of the positioning holes to position the side plate.

5. The live replacement direct-entry three-phase four-wire electric energy meter short-circuit protection cover according to claim 1 is characterized in that: The connection is provided with a waist-shaped hole for connecting with a direct-entry three-phase four-wire electric energy meter.

6. The live replacement direct-entry three-phase four-wire electric energy meter short-circuit protection cover according to claim 1 is characterized in that: The main cover plate includes a first cover plate and a second cover plate. The first cover plate and the second cover plate are connected together by a connecting piece, and both the first cover plate and the second cover plate can be turned over by the connecting piece.

7. The live replacement direct-entry three-phase four-wire electric energy meter short-circuit protection cover according to claim 2 is characterized in that: The positioning column is provided with a limiting platform, and the limiting platform abuts against the bottom of the first sliding groove.

8. The live replacement direct-entry three-phase four-wire electric energy meter short-circuit protection cover according to claim 1 is characterized in that: The first sliding groove and the second sliding groove are staggered and do not overlap.

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