Anti-disassembly mechanism of electric energy meter

Abstract

The utility model relates to the technical field of electric energy meters, in particular to an anti-dismounting mechanism of an electric energy meter, which comprises a mounting seat, the mounting seat is fixed in an accommodating cavity arranged on the side surface of an electric energy meter body, the top of the mounting seat is rotatably connected with a rotating shaft, and the side surface of the top of the rotating shaft is provided with a tray. One end of the torsional spring is fixed on the mounting seat, the other end of the torsional spring is fixed on the tray, a connecting ring is coaxially superposed on the tray, the side surface of the connecting ring extends to form an anti-disassembly sheet, the side surface of the electric energy meter body is provided with a cover plate, the cover plate covers the opening of the accommodating cavity, and the edge of one side, close to the accommodating cavity, of the cover plate is provided with a surrounding edge which extends into the accommodating cavity. An anti-disassembly groove is formed in the side face of the surrounding edge when the torsional spring is not stressed. By means of the torsion spring, when the cover plate is installed, the end of the anti-disassembly piece can be moved into the anti-disassembly groove in the surrounding edge, the cover plate is clamped, irrelevant personnel are prevented from disassembling the cover plate, and the anti-disassembly effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric energy meters, in particular to an anti-disassembly mechanism of an electric energy meter. Background Art

[0002] An electric energy meter is an instrument used to measure electric energy. It is also called an electric meter, a fire meter, or a kilowatt-hour meter. It refers to an instrument that measures various electrical quantities.

[0003] At present, the electric energy meter generally covers the wiring terminal of the electric energy meter with a transparent end cover, and seals the end cover with a lead seal to prevent unauthorized personnel from removing the end cover and secretly connecting the wires to steal electricity. However, when sealing the end cover, the staff needs to first cover the end cover on the electric energy meter, and then install the lead seal on the end cover box and the electric energy meter to complete the anti-disassembly, which is cumbersome to use, and when the lead seal is replaced after being damaged, a new lead seal needs to be installed on the end cover and the electric energy meter, which is troublesome to install. To this end, we propose an anti-disassembly mechanism for the electric energy meter. Utility Model Content

[0004] The utility model aims to solve the above-mentioned shortcomings in the prior art and proposes an anti-disassembly mechanism for an electric energy meter.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-disassembly mechanism of an electric energy meter is designed, including a mounting seat, the mounting seat is fixed inside a receiving cavity opened on the side of the electric energy meter body, the top of the mounting seat is rotatably connected with a rotating shaft, a tray is installed on the top side of the rotating shaft, a torsion spring is sleeved on the side of the rotating shaft, one end of the torsion spring is fixed on the mounting seat, and the other end of the torsion spring is fixed on the tray, a connecting ring is coaxially stacked on the tray, and an anti-disassembly sheet is extended from the side of the connecting ring;

[0006] A cover plate is provided on the side of the electric energy meter body, and the cover plate covers the opening of the accommodating cavity. A surrounding edge is installed on one side edge of the cover plate close to the accommodating cavity, and the surrounding edge extends into the accommodating cavity. An anti-disassembly groove is provided on the side of the surrounding edge. When the torsion spring is not subjected to force, one end of the anti-disassembly piece extends into the anti-disassembly groove.

[0007] An annular limiting groove is provided on the top side of the rotating shaft, a clamping ring is provided inside the annular limiting groove, the edge of the clamping ring extends out of the annular limiting groove, and the bottom edge of the clamping ring is connected to the top of the connecting ring.

[0008] Preferably, a groove is provided on one end of the side of the electric energy meter body close to the accommodating cavity, the groove is connected to the accommodating cavity, and the top of the cover is located in the groove, a number of card blocks are equidistantly installed on the top of the side of the cover, and a number of card slots are equidistantly provided on the side of the accommodating cavity, and one end of the card block extends into the card slot.

[0009] Preferably, a plurality of strip-shaped positioning blocks are equidistantly installed on both sides of the outer surface of the peripheral edge, a plurality of positioning grooves are equidistantly opened on both sides of the accommodating cavity, and the strip-shaped positioning blocks extend into the positioning grooves.

[0010] Preferably, a plurality of limiting holes are formed on the top of the tray, a plurality of limiting blocks are installed on the bottom of the connecting ring, and the bottom of each limiting block extends into the corresponding limiting hole.

[0011] Preferably, a fold is provided at the bottom of the tamper-evident sheet.

[0012] The design scheme proposed by the utility model has the following beneficial effects during application:

[0013] 1. When installing the cover, the torsion spring can move the end of the anti-disassembly piece into the anti-disassembly groove on the edge to lock the cover, preventing irrelevant personnel from disassembling the cover. There is no need to install the lead seal after installing the cover, which is convenient to use.

[0014] 2. The connecting ring can be fixed on the rotating shaft by the clamping ring. When the anti-tampering sheet needs to be replaced, the connecting ring and the anti-tampering sheet can be removed from the rotating shaft by simply removing the clamping ring. After replacing the new connecting ring and the anti-tampering sheet, they can be fixed by the clamping ring again, which is convenient for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the cover structure of the utility model;

[0017] Figure 3 This is a dispersion diagram of the shaft structure of the utility model;

[0018] Figure 4 It is a partial structural side sectional view of the utility model.

[0019] In the figure: 1. cover plate; 2. surrounding edge; 3. electric energy meter body; 4. positioning groove; 5. accommodating cavity; 6. strip positioning block; 7. anti-dismantling groove; 8. clamping block; 9. mounting seat; 10. torsion spring; 11. limiting hole; 12. limiting block; 13. connecting ring; 14. clamping ring; 15. anti-dismantling sheet; 16. tray; 17. rotating shaft; 18. groove; 19. clamping slot; 20. annular limiting groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-Figure 4An anti-disassembly mechanism of an electric energy meter includes a mounting base 9, which is fixed inside a receiving cavity 5 opened on the side of an electric energy meter body 3. A cover plate 1 is provided on the side of the electric energy meter body 3, and the cover plate 1 covers the opening of the receiving cavity 5. The cover plate 1 is made of transparent plastic material, so that the staff can observe the wiring status in the receiving cavity 5 through the cover plate 1 without opening the cover plate 1.

[0022] like Figure 1 As shown, a side edge of the cover plate 1 close to the accommodating cavity 5 is installed with a peripheral edge 2, and the peripheral edge 2 extends into the accommodating cavity 5. A number of strip positioning blocks 6 are evenly installed on both sides of the outer surface of the peripheral edge 2, and a number of positioning grooves 4 are evenly opened on both sides of the accommodating cavity 5. The strip positioning blocks 6 extend into the positioning grooves 4, so that the cover plate 1 can be positioned to avoid position displacement of the cover plate 1 during installation.

[0023] like Figure 3 and Figure 4 As shown, the top of the mounting seat 9 is rotatably connected with a rotating shaft 17, and a tray 16 is installed on the top side of the rotating shaft 17. A torsion spring 10 is sleeved on the side of the rotating shaft 17, and one end of the torsion spring 10 is fixed on the mounting seat 9, and the other end of the torsion spring 10 is fixed on the tray 16. A connecting ring 13 is coaxially stacked on the tray 16, and an anti-disassembly piece 15 is extended from the side of the connecting ring 13. An anti-disassembly groove 7 is opened on the side of the surrounding edge 2. When the torsion spring 10 is not subjected to force, one end of the anti-disassembly piece 15 extends into the anti-disassembly groove 7. In actual use, when the cover plate 1 covers the opening of the accommodating cavity 5, the end of the anti-disassembly piece 15 is aligned with the anti-disassembly groove 7, and under the action of the torsion spring 10, the end of the anti-disassembly piece 15 moves into the anti-disassembly groove 7, so that the cover plate 1 can be fixed. When the cover plate 1 is disassembled, the anti-disassembly piece 15 will break and cannot be restored, thereby achieving the purpose of anti-disassembly.

[0024] like Figure 3 As shown, an annular limiting groove 20 is opened on the top side of the rotating shaft 17, and a snap ring 14 is arranged inside the annular limiting groove 20. The edge of the snap ring 14 extends out of the annular limiting groove 20, and the bottom edge of the snap ring 14 is connected with the top of the connecting ring 13. By moving the snap ring 14 into the annular limiting groove 20, the connecting ring 13 can be fixed on the rotating shaft 17, and the fixation is convenient. After disassembling the cover plate 1, only the snap ring 14 needs to be removed, and the connecting ring 13 and the broken anti-disassembly sheet 15 can be removed from the rotating shaft 17, and then a new anti-disassembly sheet 15 can be replaced. It is also very convenient to replace the anti-disassembly sheet 15.

[0025] It should be noted that a plurality of limiting holes 11 are provided on the top of the tray 16, and a plurality of limiting blocks 12 are installed on the bottom of the connecting ring 13. The bottom of each limiting block 12 extends into the corresponding limiting hole 11, so that the connecting ring 13 will not rotate relative to the rotating shaft 17. In actual use, the end of the anti-disassembly piece 15 can move into the anti-disassembly groove 7 following the rotation of the rotating shaft 17.

[0026] like Figure 2 and Figure 4 As shown, a groove 18 is provided at one end of the side of the electric energy meter body 3 close to the accommodating cavity 5, the groove 18 is connected to the accommodating cavity 5, and the top of the cover plate 1 is located in the groove 18, a number of card blocks 8 are equidistantly installed on the top of the side of the cover plate 1, and a number of card slots 19 are equidistantly provided on the side of the accommodating cavity 5, one end of the card block 8 extends into the card slot 19, and through the cooperation of the card block 8 and the card slot 19, the top of the cover plate 1 can be fixed in the groove 18, and then the cover plate 1 can be stably fixed on the electric energy meter body 3.

[0027] Specifically, when installing the utility model, the staff moves the anti-disassembly piece 15 through the surrounding edge 2 on the cover plate 1, so that the end of the anti-disassembly piece 15 is deflected and pressed against the side of the surrounding edge 2, and the torsion spring 10 generates torque. In the process of the surrounding edge 2 moving the anti-disassembly piece 15, the strip positioning block 6 on the surrounding edge 2 is aligned with the positioning groove 4 opened on the side wall of the accommodating cavity 5, and then the cover plate 1 is covered on the opening of the accommodating cavity 5. In the process of covering the cover plate 1, the surrounding edge 2 moves toward the inside of the accommodating cavity 5. When the cover plate 1 contacts the surface of the electric energy meter body 3, the clamping block 8 is inserted into the clamping groove 19. At the same time, the anti-disassembly piece 15 is aligned with the anti-disassembly groove 7. The torsion spring 10 restores its deformation, driving the end of the anti-disassembly piece 15 to move into the anti-disassembly groove 7, and the cover plate 1 is clamped to prevent unauthorized personnel from opening the cover plate 1.

[0028] Furthermore, if Figure 3 As shown, the bottom of the anti-disassembly sheet 15 is provided with a fold, which can reduce the difficulty of removing the anti-disassembly sheet 15. When disassembling, the staff can easily break the anti-disassembly sheet 15 by pulling the cover plate 1.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-disassembly mechanism for an electric energy meter, comprising a mounting seat (9), characterized in that: The mounting seat (9) is fixed inside a receiving cavity (5) opened on the side of the electric energy meter body (3); the top of the mounting seat (9) is rotatably connected to a rotating shaft (17); a tray (16) is installed on the side of the top of the rotating shaft (17); a torsion spring (10) is sleeved on the side of the rotating shaft (17); one end of the torsion spring (10) is fixed to the mounting seat (9); the other end of the torsion spring (10) is fixed to the tray (16); a connecting ring (13) is coaxially stacked on the tray (16); and an anti-disassembly sheet (15) is extended from the side of the connecting ring (13); A cover plate (1) is provided on the side of the electric energy meter body (3), the cover plate (1) covers the opening of the accommodating cavity (5), a peripheral edge (2) is installed on one side edge of the cover plate (1) close to the accommodating cavity (5), the peripheral edge (2) extends into the accommodating cavity (5), and an anti-disassembly groove (7) is provided on the side of the peripheral edge (2), and when the torsion spring (10) is not subjected to force, one end of the anti-disassembly plate (15) extends into the anti-disassembly groove (7); An annular limiting groove (20) is provided on the top side of the rotating shaft (17), a clamping ring (14) is provided inside the annular limiting groove (20), an edge of the clamping ring (14) extends outside the annular limiting groove (20), and a bottom edge of the clamping ring (14) is connected to the top of the connecting ring (13).

2. The anti-disassembly mechanism of an electric energy meter according to claim 1, characterized in that: A groove (18) is provided at one end of the side of the electric energy meter body (3) close to the accommodating chamber (5), the groove (18) is connected to the accommodating chamber (5), and the top of the cover plate (1) is located in the groove (18). A plurality of card blocks (8) are equidistantly mounted on the top of the side of the cover plate (1), and a plurality of card slots (19) are equidistantly provided on the side of the accommodating chamber (5), and one end of the card block (8) extends into the card slot (19).

3. The anti-disassembly mechanism of an electric energy meter according to claim 1, characterized in that: A plurality of strip-shaped positioning blocks (6) are equidistantly mounted on both sides of the outer surface of the peripheral edge (2), a plurality of positioning grooves (4) are equidistantly opened on both sides of the accommodating cavity (5), and the strip-shaped positioning blocks (6) extend into the interior of the positioning grooves (4).

4. The anti-disassembly mechanism of an electric energy meter according to claim 1, characterized in that: A plurality of limiting holes (11) are formed on the top of the tray (16), and a plurality of limiting blocks (12) are installed on the bottom of the connecting ring (13), wherein the bottom of each limiting block (12) extends into the corresponding limiting hole (11).

5. The anti-disassembly mechanism of an electric energy meter according to claim 1, characterized in that: The bottom of the anti-tampering sheet (15) is provided with a fold.

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