Anti-disassembly mechanism of electric energy meter

Abstract

The utility model relates to the technical field of electricity meters, in particular to an anti-disassembly mechanism of an electric energy meter. Comprising a fixing plate, a transparent end cover and a locking assembly. The fixing plate is used for fixing an electric energy meter and is connected with a wall surface; one side of the transparent end cover is hinged with the fixed plate, and the electric energy meter is covered in the transparent end cover; the locking assembly is arranged on the fixing plate, and the locking assembly is connected with the inner wall of the other side of the transparent end cover in a clamped mode. The anti-disassembly mechanism can replace lead sealing to lock the transparent end cover, the situation that the electric energy meter is not used according to regulations is avoided, and the anti-disassembly mechanism is simple in structure and can be repeatedly used.

Description

Technical Field

[0001] This utility model relates to the field of electricity meter technology, and in particular to an anti-tampering mechanism for electricity meters. Background Technology

[0002] An electricity meter is an instrument used to measure electrical energy; it is also called a kilowatt-hour meter, a power meter, or a kilowatt-hour meter, and refers to instruments that measure various electrical quantities. Currently, electricity meters generally use transparent end covers to cover the meter's terminals, and then seal the end covers with lead seals to prevent unauthorized personnel from opening the end covers and secretly connecting wires to steal electricity. However, when sealing the end covers, workers need to first place the end covers on the electricity meter, and then install the lead seal on the end cover and the electricity meter to achieve tamper protection. This is cumbersome, and when the lead seal is damaged and needs to be replaced, a new lead seal needs to be installed on the end cover and the electricity meter, which is also troublesome. Therefore, a solution is urgently needed.

[0003] The above content is only used to help understand the technical solution of this utility model, and does not represent an admission that the above content is the closest prior art. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an anti-tampering mechanism for electricity meters. This anti-tampering mechanism can replace the lead seal to lock the transparent end cover, preventing the electricity meter from being used in violation of regulations. Moreover, the anti-tampering mechanism has a simple structure and can be reused.

[0005] To achieve the aforementioned objective, the technical solution of this utility model is implemented as follows: an anti-tampering mechanism for an electricity meter includes: a fixing plate, a transparent end cover, and a locking component; the fixing plate is used to fix the electricity meter and is connected to the wall; one side of the transparent end cover is hinged to the fixing plate, and the electricity meter is covered in the transparent end cover; the locking component is disposed on the fixing plate, and the locking component is engaged with the inner wall of the other side of the transparent end cover.

[0006] Preferably, the locking assembly includes a plug-in cylinder, a plug-in rod, and a movable component; the plug-in cylinder is disposed on the fixed plate and located on one side of the transparent end cap; the movable component is installed in the fixed plate and forms a slidable connection with the fixed plate, one end of the movable component extends into the vertical hole of the plug-in cylinder, and the other end engages with the inner wall of one side of the transparent end cap; the plug-in rod engages with the vertical hole. During insertion into the vertical hole, the plug-in rod compresses the end of the movable component located in the vertical hole and pushes the movable component to move within the fixed plate; after the plug-in rod is inserted into the vertical hole, the engagement between the movable component and the inner wall of the transparent end cap is released.

[0007] Preferably, the fixing plate is provided with a snap-fit ​​groove; a connecting channel is provided between the snap-fit ​​groove and the vertical hole; the transparent end cap is provided with a locking tongue, and the locking tongue is driven into or away from the snap-fit ​​groove during the flipping of the transparent end cap; the moving part is disposed in the connecting channel and forms a sliding connection with the connecting channel, and the moving part and the locking tongue form a snap-fit.

[0008] Preferably, the movable component includes a movable rod, a return spring, and a hook; the inner wall of the latch is provided with a snap-fit ​​hole; the movable rod is disposed in the connecting channel, one end of the movable rod is provided with an inclined surface for inserting the rod, and the other end of the movable rod is connected to one end of the return spring; the other end of the return spring is connected to the inner wall of the snap-fit ​​groove; the hook is disposed on the movable rod and located in the snap-fit ​​groove, and the hook and the snap-fit ​​hole form a snap-fit.

[0009] Preferably, the transparent end cap is provided with a cover plate; the cover plate is used to cover the opening of the snap-fit ​​groove.

[0010] Preferably, the hook is configured as an L-shaped rod, with the short part of the L-shaped rod perpendicularly connected to the moving rod, and the long part of the L-shaped rod forming an insertion fit with the locking hole.

[0011] Preferably, the fixing plate is provided with an energy meter mounting area; the energy meter mounting area is located in the coverage area of ​​the transparent end cover, and the four corners of the energy meter mounting area are provided with fixing bolt mounting holes.

[0012] Preferably, it also includes a power cord hole; the power cord hole is located on the electricity meter mounting area.

[0013] Preferably, the end of the plug rod is provided with a mating inclined surface; the mating inclined surface and the inclined surface at the end of the moving rod can coincide in the vertical direction.

[0014] Preferably, it also includes a connecting plate; one side of the connecting plate is connected to the end of the return spring, and the other side is connected to the end of the moving rod.

[0015] The beneficial effects of this utility model are reflected in:

[0016] (1) The structure of the anti-tampering mechanism provided by this utility model is relatively simple. It can not only replace the lead seal to fix the transparent end cover and avoid irregular use of the electricity meter, but also the anti-tampering mechanism can be reused, thereby improving the convenience of use and reducing the cost of use.

[0017] (2) The movable part of the anti-disassembly mechanism of this utility model can release the lock of the transparent end cover only after the specific inclined surface and the matching inclined surface of the plug rod are aligned in the vertical direction, thereby improving the safety of the anti-disassembly mechanism. Attached Figure Description

[0018] Figure 1 This is the front view of the present invention;

[0019] Figure 2 This is a side view of the transparent end cap of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the mobile component of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure after the hook and locking tongue of this utility model are engaged.

[0022] Explanation of reference numerals in the attached figures:

[0023] A. Connecting rod; 10. Fixing plate; 11. Electricity meter installation area; 12. Fixing bolt mounting hole; 13. Power cord hole; 14. Snap-fit ​​groove; 20. Transparent end cap; 21. Cover plate; 22. Locking tongue; 221. Snap-fit ​​hole; 31. Connecting tube; 32. Vertical hole; 33. Moving rod; 34. Return spring; 35. Connecting plate; 36. Hook. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0025] Example

[0026] See Figure 1-4 As shown:

[0027] This utility model provides an anti-tampering mechanism for an electricity meter, including: a fixing plate 10, a transparent end cap 20, and a locking component.

[0028] In practical applications, the fixing plate 10 is used to fix the electricity meter. One side of the transparent end cover 20 is hinged to the fixing plate 10, and the electricity meter is covered inside the transparent end cover 20. The fixing plate 10 has an electricity meter mounting area 11 for installing the electricity meter. The electricity meter mounting area 11 is located within the coverage area of ​​the transparent end cover 20, and each of the four corners of the electricity meter mounting area 11 has a fixing bolt mounting hole 12. After the bolts are installed in the four fixing bolt mounting holes 12, the fixing plate 10 is connected to the wall. The fixing plate 10 cannot be disassembled without opening the transparent end cover 20, thus ensuring the safety of the electricity meter. The locking component is provided on the fixing plate 10, and the locking component is engaged with the inner wall of the other side of the transparent end cover 20.

[0029] The locking assembly includes a plug-in cylinder 31, a plug-in rod A, and a movable component. The plug-in cylinder 31 is disposed on the fixed plate 10 and located on one side of the transparent end cap 20, and has a vertical hole 32 along the vertical direction of the plug-in cylinder 31. The movable component is installed in the fixed plate 10 and forms a slidable connection with the fixed plate 10. One end of the movable component extends into the vertical hole 32 of the plug-in cylinder 31, and the other end is engaged with the inner wall of one side of the transparent end cap 20; the plug-in rod A is engaged with the vertical hole 32.

[0030] In practical application, during the insertion of the plug rod A into the vertical hole 32, it compresses the end of the moving part located in the vertical hole 32 and pushes the moving part to move in the fixed plate 10. After the plug rod A is inserted into the vertical hole 32, the engagement between the moving part and the inner wall of the transparent end cap 20 is released.

[0031] A snap-fit ​​groove 14 is provided on the fixed plate 10; a connecting channel is provided between the snap-fit ​​groove 14 and the vertical hole 32; a locking tongue 22 is provided on the transparent end cover 20, and the locking tongue 22 moves into or away from the snap-fit ​​groove 14 during the flipping process of the transparent end cover 20; a movable part is disposed in the connecting channel and forms a sliding connection with the connecting channel, and the movable part and the locking tongue 22 form a snap-fit. A cover plate 21 is provided on the transparent end cover 20; the cover plate 21 is used to cover the opening of the snap-fit ​​groove 14, thereby preventing irregular users from prying the transparent end cover 20 from the snap-fit ​​groove 14, and improving the safety of use.

[0032] With this setting, the transparent end cover 20 cannot be opened without opening the latch between the moving part and the transparent end cover 20, thus enabling the moving part to stably lock the transparent end cover 20.

[0033] The movable component includes a movable rod 33, a return spring 34, and a hook 36. The inner wall of the locking tongue 22 has a snap-fit ​​hole 221; the movable rod 33 is located in the connecting channel, one end of which has an inclined surface for pressing the insertion rod A, and the other end of the movable rod 33 is connected to one end of the return spring 34; the other end of the return spring 34 is connected to the inner wall of the snap-fit ​​groove 14; the hook 36 is disposed on the movable rod 33 and located in the snap-fit ​​groove 14, and the hook 36 and the snap-fit ​​hole 221 form a snap-fit ​​connection.

[0034] To ensure smoother resetting of the moving rod 33, a connecting plate 35 is provided between the moving rod 33 and the return spring 34. One side of the connecting plate 35 is connected to the end of the return spring 34, and the other side is connected to the end of the moving rod 33. This arrangement allows the moving rod 33 to better compress the return spring 34 during use, and the return spring 34 to better push the moving rod 33.

[0035] In practical applications, the hook 36 is set as an L-shaped rod, with the short part of the L-shaped rod perpendicularly connected to the moving rod 33, and the long part of the L-shaped rod forming an insertion fit with the locking hole 221, thereby enabling a more stable locking.

[0036] To make the push of the connecting rod A onto the moving rod 33 smoother, a mating inclined surface is provided at the end of the connecting rod A; the mating inclined surface and the inclined surface at the end of the moving rod 33 can coincide in the vertical direction.

[0037] In practical applications, by setting a specific angle between the inclined surface of the plug rod A and the inclined surface at the end of the moving rod 33, the plug rod A can unlock the moving part, making it impossible for irregular users to unlock the lock between the moving part and the transparent end cover 20 without the plug rod A, thus improving the safety of the electricity meter.

[0038] It also includes a power cord hole 13, which is located on the electricity meter mounting area 11. This design prevents the power cord from being moved without opening the transparent end cover 20, thus improving the safety of the electricity meter.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tamper-proof mechanism for an electricity meter, characterized in that, include: A fixing plate (10), a transparent end cap (20), and a locking assembly; the fixing plate (10) is used to fix the electricity meter and is connected to the wall; one side of the transparent end cap (20) is hinged to the fixing plate (10) and covers the electricity meter in the transparent end cap (20); the locking assembly is disposed on the fixing plate (10) and the locking assembly is engaged with the inner wall of the other side of the transparent end cap (20).

2. The anti-tampering mechanism for an electricity meter according to claim 1, characterized in that, The locking assembly includes a plug-in cylinder (31), a plug-in rod (A), and a movable component; the plug-in cylinder (31) is disposed on the fixed plate (10) and located on one side of the transparent end cap (20); the movable component is installed in the fixed plate (10) and forms a sliding connection with the fixed plate (10); one end of the movable component extends into the vertical hole (32) of the plug-in cylinder (31), and the other end is engaged with the inner wall on one side of the transparent end cap (20); the plug-in rod (A) is engaged with the vertical hole (32).

3. The anti-tampering mechanism for an electricity meter according to claim 1, characterized in that, The fixed plate (10) is provided with a snap-fit ​​groove (14); a connecting channel is provided between the snap-fit ​​groove (14) and the vertical hole (32); the transparent end cap (20) is provided with a locking tongue (22), and the locking tongue (22) is driven into or away from the snap-fit ​​groove (14) during the flipping process of the transparent end cap (20); the moving part is set in the connecting channel and forms a sliding connection with the connecting channel, and the moving part and the locking tongue (22) form a snap-fit.

4. The anti-tampering mechanism for an electricity meter according to claim 3, characterized in that, The movable component includes a movable rod (33), a return spring (34), and a hook (36); the inner wall of the locking tongue (22) is provided with a snap-fit ​​hole (221); the movable rod (33) is located in the connecting channel, one end of the movable rod (33) is provided with an inclined surface for the insertion rod (A) to press, and the other end of the movable rod (33) is connected to one end of the return spring (34); the other end of the return spring (34) is connected to the inner wall of the snap-fit ​​groove (14); the hook (36) is provided on the movable rod (33) and located in the snap-fit ​​groove (14), and the hook (36) and the snap-fit ​​hole (221) form a snap-fit.

5. A tamper-proof mechanism for an electricity meter according to claim 3 or 4, characterized in that, The transparent end cap (20) is provided with a cover plate (21); the cover plate (21) is used to cover the opening of the snap-fit ​​groove (14).

6. The anti-tampering mechanism for an electricity meter according to claim 4, characterized in that, The hook (36) is configured as an L-shaped rod, with the short part of the L-shaped rod perpendicularly connected to the moving rod (33), and the long part of the L-shaped rod forming an insertion fit with the locking hole (221).

7. The anti-tampering mechanism for an electricity meter according to claim 6, characterized in that, The fixing plate (10) is provided with an electricity meter mounting area (11); the electricity meter mounting area (11) is located in the coverage area of ​​the transparent end cover (20), and the four corners of the electricity meter mounting area (11) are provided with fixing bolt mounting holes (12).

8. The anti-tampering mechanism for an electricity meter according to claim 7, characterized in that, It also includes a power cord hole (13); the power cord hole (13) is located on the electricity meter mounting area (11).

9. The anti-tampering mechanism for an electricity meter according to claim 8, characterized in that, The end of the plug rod (A) is provided with a mating inclined surface; the mating inclined surface and the inclined surface at the end of the moving rod (33) can coincide in the vertical direction.

10. The anti-tampering mechanism for an electricity meter according to claim 8, characterized in that, It also includes a connecting plate (35); one side of the connecting plate (35) is connected to the end of the return spring (34), and the other side is connected to the end of the moving rod (33).

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