An electricity meter with a flip cover

By designing a combination of guide posts and positioning holes on the flip cover of the electricity meter, the flip cover can be self-positioned and fixed, solving the problem that the flip cover cannot be stably maintained in the open state, thus improving operational safety and the service life of the equipment.

CN224286987UActive Publication Date: 2026-05-26NINGBO SANXING MEDICAL & ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO SANXING MEDICAL & ELECTRIC CO LTD
Filing Date
2025-06-19
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The flip cover of existing electricity meters cannot lock automatically when it is open, which requires operators to apply extra force to maintain its open position, increasing the risk of operational errors. Especially in scenarios such as tilted installation or high-altitude operation, the flip cover is prone to closing on its own, which may cause fingers to be pinched or internal components to be damaged.

Method used

Design a flip cover structure with guide posts and positioning holes. When the flip cover is fully open, the guide posts slide into the first positioning hole and remain open. When the flip cover is closed, the guide posts are located in the second positioning hole and remain closed. The flip cover is self-positioned and fixed by the cooperation of the guide groove and the positioning hole.

Benefits of technology

The flip cover remains stable whether open or closed, reducing the need for additional support for operators, lowering the risk of pinched fingers or damage to internal components, and improving operational safety and the lifespan of the equipment.

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Abstract

This utility model discloses an electricity meter with a flip cover, including a meter body and a flip cover rotatably mounted on the meter body. One side of the flip cover has at least one protruding guide post. The meter body has a guide groove corresponding to the position of the guide post and a first positioning hole at the upper end of the guide groove. The extension path of the guide groove corresponds to the flipping trajectory of the flip cover. The guide post moves along the guide groove as the flip cover flips and can slide into the first positioning hole when the flip cover is fully open. In the open state, the guide post is constrained in the first positioning hole to keep the flip cover open. Compared with the prior art, this utility model is safer and more stable, reducing the risk of pinching fingers or damaging internal components.
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Description

Technical Field

[0001] This utility model relates to the field of electricity meters, specifically to an electricity meter with a flip cover. Background Technology

[0002] Electricity meters are one of the basic data acquisition devices in smart grids (especially smart distribution networks). They are responsible for the collection, metering, and transmission of raw electrical data, forming the foundation for information integration, analysis, optimization, and display. They are highly functional. Electricity meters are an important component of the power system, helping users to rationally allocate power resources, ensuring stable grid operation, and also helping users understand and manage their electricity usage, thus promoting energy conservation and emission reduction.

[0003] In existing technologies, the end cover of an electricity meter is a crucial component for protecting internal electronic components and wiring terminals. As a core part protecting the internal metering module, wiring terminals, and electronic components, the structural design of the end cover directly affects the device's protective performance and ease of operation. Flip-top end covers, as a typical form, generally cover the meter body port through a hinged opening and closing structure. While providing basic protection, their functionality still has many limitations. For example, existing flip-top end covers cannot automatically lock at a specific angle when open, requiring operators to exert additional force to maintain their unfolded position. Especially in scenarios involving inclined installation or high-altitude operations, the flip-top is prone to closing automatically due to gravity, forcing maintenance personnel to operate tools with one hand while simultaneously needing to concentrate on stabilizing the cover, significantly increasing the risk of operational errors.

[0004] The flip cover lacks a self-positioning function after opening and cannot maintain a stable state at any opening angle. When operators open the flip cover for maintenance or reading, they need to continuously support it with their hands or use external objects to hold it in place. This not only increases the burden of operation, but also may cause the flip cover to close rapidly due to accidental loosening, posing a risk of pinching fingers or damaging internal components. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an energy meter with a flip cover, which can be positioned and fixed, reducing the risk of pinching fingers or damaging internal components, while having a simple and practical structure.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an electricity meter with a flip cover, comprising a meter body and a flip cover rotatably disposed on the meter body, characterized in that:

[0007] The flip cover has at least one protruding guide post on one side;

[0008] The watch body is provided with a guide groove and a first positioning hole at the upper end of the guide groove corresponding to the position of the guide post;

[0009] The extension path of the guide groove corresponds to the flipping trajectory of the cover. The guide post moves along the guide groove as the cover flips and can slide into the first positioning hole when the cover is fully open.

[0010] When the flip cover is open, the guide post is constrained in the first positioning hole to keep the flip cover open.

[0011] To facilitate the opening and closing of the flip cover, preferably, the flip cover is provided with a connecting shaft, and correspondingly, the watch body is provided with a connecting shaft hole, and the connecting shaft is provided in the connecting shaft hole so that the flip cover and the watch body are rotatably connected.

[0012] Preferably, the extension path of the guide groove is arc-shaped.

[0013] To facilitate fixing the flip cover so that it remains closed when the electricity meter is not being operated and is not easily opened by its own weight or environmental forces, preferably, the meter body is also provided with a second positioning hole. When the guide post is located in the second positioning hole, the guide post is constrained in the second positioning hole so that the flip cover remains closed.

[0014] Preferably, the second positioning hole is located at the bottom end of the guide groove.

[0015] To facilitate the installation of wiring terminals and electrical connection with external devices, preferably, one end of the meter body is provided with a wiring socket, and the wiring socket is provided with multiple through-slots, each of which contains a wiring terminal. When the flip cover is closed, the flip cover covers part of the wiring socket and exposes one end of the wiring terminal.

[0016] Preferably, the terminal block extends along the width direction of the meter body, and the mounting groove extends along the width direction of the terminal block.

[0017] To provide cushioning when closed, preferably, the flip cover is provided with a sealing strip, which abuts against the watch body when the flip cover is closed.

[0018] Preferably, the number of guide posts and guide grooves is two sets, and they are symmetrically distributed on both sides of the flip cover.

[0019] In order to enable the guide post to slide into or out of the first positioning hole under the force of the user, and to prevent it from sliding into or out of the first positioning hole under its own weight, preferably, the thickness of the guide post is 0.9-1.0mm, and the corresponding groove depth of the first positioning hole is 1.1-1.2mm.

[0020] Compared with the prior art, the advantages of this utility model are as follows: When the flip cover is open, the guide post is constrained in the first positioning hole so that the flip cover is kept open. Therefore, the flip cover cannot open or close by itself without external force, which avoids the user from accidentally contacting the live parts, making it safer and more stable. Maintenance personnel can operate with both hands without additional support for the flip cover, and it can reduce the wear at the connection between the flip cover and the watch body caused by frequent swinging of the flip cover. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure in the closed state of the flip cover in the embodiment;

[0022] Figure 2 This is a schematic diagram of the structure in the flip-top open state of the embodiment;

[0023] Figure 3 This is a schematic diagram of the structure of an embodiment (excluding the flip cover);

[0024] Figure 4 for Figure 3 A magnified view of point A;

[0025] Figure 5 This is a schematic diagram of the flip cover structure in an embodiment. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] like Figure 1-5 The image shows a preferred embodiment of the present invention. An electricity meter with a flip cover includes a meter body 1, a flip cover 2, and a terminal block 3.

[0028] The watch body 1 includes a guide groove 11, a first positioning hole 12, and a second positioning hole 13. The extension path of the guide groove 11 corresponds to the flipping trajectory of the flip cover 2.

[0029] The flip cover 2 is rotatably mounted on the watch body 1. A raised guide post 21 is provided on one side of the flip cover 2; in other embodiments, multiple guide posts 21 may be provided on each side, correspondingly adjusting the extension path of the guide groove 11 and the positions of the first positioning hole 12 and the second positioning hole 13. The flip cover 2 is provided with a connecting shaft 22, and correspondingly, the watch body 1 is provided with a connecting shaft hole 14. The connecting shaft 22 is disposed within the connecting shaft hole 14 to rotatably connect the flip cover 2 and the watch body 1. A sealing strip is provided on the flip cover 2; when the flip cover 2 is closed, the sealing strip abuts against the watch body 1.

[0030] The watch body 1 has a guide groove 11 corresponding to the guide post 21 and a first positioning hole 12 at the upper end of the guide groove 11. The guide post 21 moves along the guide groove 11 as the flip cover 2 flips, and can slide into the first positioning hole 12 when the flip cover 2 is fully open. There are two sets of guide posts 21 and guide grooves 11, which are symmetrically distributed on both sides of the flip cover 2. The extension path of the guide groove 11 is arc-shaped. When the guide post 21 is located in the second positioning hole 13, the guide post 21 is constrained in the second positioning hole 13 to keep the flip cover 2 closed. The second positioning hole 13 is located at the bottom end of the guide groove 11.

[0031] A terminal block 3 is located at one end of the meter body 1. The terminal block 3 has multiple mounting slots that penetrate through it, and each mounting slot contains a terminal block 31. The terminal block 3 extends along the width direction of the meter body 1, and the mounting slots also extend along the width direction of the terminal block 3.

[0032] The thickness of the guide post 21 is 0.9-1.0mm, and the corresponding groove depth of the first positioning hole 12 is 1.1-1.2mm; the groove depth of the second positioning hole 13 is also 1.1-1.2mm. The combination of this groove depth and the thickness of the guide post 21 allows the guide post 21 to deform and slide into or out of the first positioning hole 12 and the second positioning hole 13 under the action of external force, but it cannot slide out or slide into the first positioning hole 12 and the second positioning hole 13 on its own without the action of external force, thereby realizing the fixation of the flip cover in the open or closed state.

[0033] Furthermore, spacers are provided within the guide groove 11, which engage the guide post 21, placing it in a semi-open state. When the user moves the guide post 21 within the guide groove 11, the flip cover 2 vibrates as it passes the spacers, allowing the user to judge the opening angle of the flip cover 2 by touch. Multiple spacers can be used, resulting in multiple semi-open angles for the flip cover 2, facilitating adaptive adjustment of the opening angle under different working conditions and installation positions, thus simplifying operation.

[0034] When the flip cover 2 is open, the guide post 21 is constrained in the first positioning hole 12 so that the flip cover 2 remains open. At this time, the terminal block 3 is exposed. With the axis of the connecting shaft 22 as the center, the opening angle of the flip cover 2 is 112°.

[0035] When the flip cover 2 is closed, the guide post 21 is located in the second positioning hole 13, the flip cover 2 covers part of the terminal block 3, and the flip cover 2 has a clearance opening 23 through which one end of the terminal block 31 is exposed.

Claims

1. An electricity meter with a flip cover, comprising a meter body (1) and a flip cover (2) rotatably disposed on the meter body (1), characterized in that: The flip cover (2) has at least one protruding guide post (21) on one side; The watch body (1) is provided with a guide groove (11) and a first positioning hole (12) at the upper end of the guide groove (11) corresponding to the position of the guide post (21); The extension path of the guide groove (11) corresponds to the flipping trajectory of the flip cover (2). The guide post (21) moves along the guide groove (11) as the flip cover (2) flips, and can slide into the first positioning hole (12) when the flip cover (2) is fully opened. When the flip cover (2) is open, the guide post (21) is constrained in the first positioning hole (12) so that the flip cover (2) remains open.

2. The electricity meter with a flip cover according to claim 1, characterized in that: The flip cover (2) is provided with a connecting shaft (22), and correspondingly, the watch body (1) is provided with a connecting shaft hole (14). The connecting shaft (22) is located in the connecting shaft hole (14) so ​​that the flip cover (2) and the watch body (1) are rotatably connected.

3. The electricity meter with a flip cover according to claim 1 or 2, characterized in that: The extension path of the guide groove (11) is arc-shaped.

4. The electricity meter with flip cover as claimed in claim 1 wherein: The watch body (1) is also provided with a second positioning hole (13). When the guide post (21) is located in the second positioning hole (13), the guide post (21) is constrained in the second positioning hole (13) so that the flip cover (2) remains closed.

5. The electricity meter with flip cover as claimed in claim 4, wherein: The second positioning hole (13) is located at the bottom end of the guide groove (11).

6. The electricity meter with flip cover as claimed in claim 4, wherein: One end of the watch body (1) is provided with a terminal block (3). The terminal block (3) has multiple mounting slots that pass through it. Each mounting slot has a terminal block (31). When the flip cover (2) is closed, the flip cover (2) covers part of the terminal block (3) and exposes one end of the terminal block (31).

7. The electricity meter with flip cover as claimed in claim 6, wherein: The terminal block (3) extends along the width direction of the meter body (1), and the mounting groove extends along the width direction of the terminal block (3).

8. The electricity meter with a flip cover according to claim 1, characterized in that: The flip cover (2) is provided with a sealing strip. When the flip cover (2) is closed, the sealing strip abuts against the watch body (1).

9. The electricity meter with a flip cover according to claim 1, characterized in that: The number of guide posts (21) and guide grooves (11) is two sets, and they are symmetrically distributed on both sides of the flip cover (2).

10. The electricity meter with a flip cover according to claim 1, characterized in that: The thickness of the guide post (21) is 0.9-1.0 mm, and the corresponding groove depth of the first positioning hole (12) is 1.1-1.2 mm.