Electricity stealing prevention electric energy meter

Abstract

The electric energy meter comprises a button, an upper shell and a lead sealing structure, the head of the button is provided with a first lead sealing through groove which is communicated with the peripheral wall and the end face of the button, and the button is provided with a convex block; a containing hole is formed in the upper shell, the key is arranged in the containing hole in a sliding mode in the axial direction, the key can rotate relative to the containing hole, a stop ring protruding inwards is arranged on the inner wall of the containing hole, a through groove used for avoiding the protruding block is formed in the stop ring, and the protruding block is arranged in the through groove. The upper shell is provided with a second lead sealing through groove which is communicated with the outer surface of the upper shell and the inner wall of the accommodating hole; the lead sealing structure comprises a lead sealing rope; when the first lead sealing penetrating groove is communicated with the second lead sealing penetrating groove, the lead sealing rope penetrates through the first lead sealing penetrating groove and the second lead sealing penetrating groove, the protruding block and the through groove are staggered, and the stopping ring stops the protruding block. The electric energy meter is novel in structure, the probability of electricity stealing events is reduced, the electric energy meter has a mistaken touch prevention function, and the lead sealing structure is convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of electric energy meters, and particularly to an anti-stealing electric energy meter. Background Art

[0002] The intelligent electric energy meter can only be programmed in the allowed programming state, and generally has double protection measures of a programming switch and a programming password to prevent unauthorized persons from performing programming operations, such as damaging the electric energy meter, stealing electricity, etc. How to effectively avoid unauthorized operation of the programming button is a problem that needs to be solved by the intelligent electric energy meter. In addition, the existing electric energy meters also lack the function of preventing accidental touch. Sometimes, it is not that the user deliberately touches the programming button, but only an accidental touch. Content of the Utility Model

[0003] The technical problem solved by the utility model is to provide an anti-stealing electric energy meter.

[0004] In order to solve the above technical problem, the technical solution adopted by the utility model is: an anti-stealing electric energy meter, comprising:

[0005] A button, a first lead seal through groove communicating the peripheral wall and the end face is provided at the head of the button, and a convex block is provided on the button;

[0006] An upper shell, a receiving hole is provided on the upper shell, the button is axially slidably arranged in the receiving hole, and the button is rotatable relative to the receiving hole. The inner wall of the receiving hole has an inwardly protruding stop ring, and a through groove for avoiding the convex block is provided on the stop ring. A second lead seal through groove communicating the outer surface and the inner wall of the receiving hole is provided on the upper shell;

[0007] A lead seal structure, the lead seal structure includes a lead seal rope;

[0008] When the first lead seal through groove is communicated with the second lead seal through groove, the lead seal rope passes through the first lead seal through groove and the second lead seal through groove, the convex block is misaligned with the through groove, and the stop ring stops the convex block.

[0009] In one embodiment, the number of the convex blocks on the button is multiple, and the multiple convex blocks are evenly distributed around the axis of the button.

[0010] In one embodiment, the first lead seal through groove forms a cross slot on the end face of the head of the button.

[0011] In one embodiment, mounting posts are provided on the upper shell, the receiving hole is provided in the mounting post, a bottom plate is provided in the receiving hole, and a through hole is provided on the bottom plate; further included are an elastic seal and a reset member. The tail end of the button passes through the through hole and is connected to the elastic seal, the reset member is disposed in the receiving hole and on a side of the bottom plate close to the retaining ring, and the reset member contacts the button and the bottom plate respectively.

[0012] In one embodiment, the elastic seal includes a mounting portion, a frustum portion, and a cylindrical portion connected in sequence from inside to outside. The mounting portion abuts against the inner side surface of the bottom plate, the cylindrical portion is sealingly connected to the mounting post to form a cylindrical sealing surface, and the tail end of the button passes through the through hole and is fixedly connected to the mounting portion.

[0013] In one embodiment, a ring groove is provided at the tail end of the button, and the mounting portion is fixedly connected to the button through the ring groove.

[0014] In one embodiment, the elastic seal is of a rotary body structure.

[0015] In one embodiment, the elastic seal is made of rubber.

[0016] In one embodiment, a first annular sealing surface is formed between the mounting portion and the bottom plate.

[0017] In one embodiment, the outer wall surface of the cylindrical portion is sealingly connected to the inner wall surface of the mounting post; and / or, the inner wall surface of the cylindrical portion is sealingly connected to the outer wall surface of the mounting post.

[0018] The beneficial effects of the present utility model are as follows: The structure of this electric energy meter is novel, and it has a lead seal structure for locking the button and the upper shell, which greatly reduces the probability of power theft incidents. Moreover, the button needs to be rotated until the convex block is aligned with the through groove before it can be pressed, which relaxes the requirement for the length of the lead seal rope, making the lead seal structure easy to install. At the same time, it avoids the phenomenon that the button can be operated without damaging the lead seal structure, which is beneficial to ensuring the lead seal effect. Moreover, the cooperation between the convex block and the retaining ring forms an anti-misoperation structure, ensuring that the electric energy meter can work normally and stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0020] Figure 1Cross-sectional view of the electricity theft-proof electric energy meter according to the first embodiment of the present utility model;

[0021] Figure 2 is Figure 1 the enlarged view of part A in

[0022] Figure 3 Structural schematic diagram of the upper shell in the electricity theft-proof electric energy meter according to the first embodiment of the present utility model;

[0023] Figure 4 Structural schematic diagram of the button in the electricity theft-proof electric energy meter according to the first embodiment of the present utility model.

[0024] Explanation of the reference numerals in the attached drawings:

[0025] 1. Upper shell; 11. Mounting post; 12. Receiving hole; 13. Bottom plate; 14. Second lead seal through slot; 15. Stop ring; 16. Through slot;

[0026] 2. Elastic seal; 21. Mounting part; 211. First annular sealing surface; 22. Frustum part; 221. Second annular sealing surface; 23. Cylindrical part; 231. Cylindrical sealing surface;

[0027] 3. Button; 31. Ring groove; 32. First lead seal through slot; 33. Protrusion;

[0028] 4. Reset part;

[0029] 5. Circuit board. Detailed implementation manners

[0030] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the embodiments and the attached drawings.

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] It should be noted that if there are directional indications such as up, down, left, right, front, back... in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture as shown in the attached drawings. If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, if the descriptions such as "first" and "second" are involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature.

[0034] In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "and / or" as an example, it includes the solution, or the solution, or the solution that satisfies both simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0035] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] Embodiment 1

[0037] Please refer to Figures 1 to 4 , Embodiment 1 of the present utility model is: an anti-theft electric energy meter, including a key 3, an upper shell 1, and a lead seal structure. A first lead seal through groove 32 communicating the peripheral wall and the end face is provided at the head of the key 3, and a convex block 33 is provided on the key 3; a receiving hole 12 is provided on the upper shell 1, the key 3 is axially slidably arranged in the receiving hole 12, and the key 3 is rotatable relative to the receiving hole 12. The inner wall of the receiving hole 12 has a stop ring 15 protruding inward, and a through groove 16 for avoiding the convex block 33 is provided on the stop ring 15. A second lead seal through groove 14 communicating the outer surface and the inner wall of the receiving hole 12 is provided on the upper shell 1; the lead seal structure includes a lead seal rope; when the first lead seal through groove 32 is communicated with the second lead seal through groove 14, the lead seal rope passes through the first lead seal through groove 32 and the second lead seal through groove 14, the convex block 33 is misaligned with the through groove 16, and the stop ring 15 stops the convex block 33.

[0038] When authorized staff needs to operate the key 3, first break the lead seal structure, pull out the lead seal rope, then rotate the key 3 to align the convex block 33 on the key 3 with the through groove 16 on the stop ring 15, and finally press the key 3.

[0039] To make the force on the button 3 balanced, the number of the bumps 33 on the button 3 is multiple, and the multiple bumps 33 are evenly distributed around the axis of the button 3. In this embodiment, the number of the bumps 33 is two, and the two bumps 33 are arranged at an interval of 180°.

[0040] To facilitate the staff to rotate the button 3, preferably, the first lead seal through slot 32 forms a cross slot on the end face of the head of the button 3.

[0041] Optionally, the upper shell 1 is provided with a mounting post 11, the receiving hole 12 is arranged in the mounting post 11, a bottom plate 13 is arranged in the receiving hole 12, and a through hole is arranged on the bottom plate 13; further included are an elastic seal 2 and a reset member 4. The tail end of the button 3 passes through the through hole to connect with the elastic seal 2. The reset member 4 is arranged in the receiving hole 12 and on the side of the bottom plate 13 close to the stop ring 15. The reset member 4 contacts the button 3 and the bottom plate 13 respectively. The elastic seal 2 and the bottom plate 13 form a seal, which is beneficial to the waterproof performance of the electric energy meter.

[0042] In some embodiments, the elastic seal 2 can be an O-ring or the like. In this embodiment, the elastic seal 2 includes a mounting portion 21, a frustum portion 22, and a cylindrical portion 23 that are connected in sequence from the inside to the outside. The mounting portion 21 abuts against the inner side surface of the bottom plate 13. The cylindrical portion 23 is hermetically connected with the mounting post 11 to form a cylindrical sealing surface 231. The tail end of the button 3 passes through the through hole and is fixedly connected with the mounting portion 21. A first annular sealing surface 211 is formed between the mounting portion 21 and the bottom plate 13. The elastic seal 2 constructed in this way has stronger sealing performance and can improve the waterproof effect of the electric energy meter to a greater extent. In particular, when the staff presses the button 3, even if the mounting portion 21 is separated from the bottom plate 13, it is still difficult for external water vapor and dust to enter the inside of the electric energy meter. The reset member 4 can be a spring, a spring piece, a spring pad made of an elastic material, etc. In an actual product, the frustum portion 22 can also be in a frustum shape, and at this time, it should be regarded as an equivalent feature of the frustum portion 22.

[0043] Preferably, the elastic seal 2 is of a rotary body structure. In an actual product, a part of the elastic seal 2 constitutes a rotary body structure, and it is also possible that the whole is not a rotary body structure, which can be specifically set according to actual needs.

[0044] In one embodiment, the outer wall surface of the cylindrical portion 23 is sealingly connected to the inner wall surface of the mounting post 11, thereby forming a cylindrical sealing surface 231. However, in this embodiment, the inner wall surface of the cylindrical portion 23 is sealingly connected to the outer wall surface of the mounting post 11, thereby forming a cylindrical sealing surface 231. Of course, in an actual product, it is also possible that the wall of the mounting post 11 is inserted into the cylindrical portion 23 to form a cylindrical sealing surface 231 on the inner wall of the receiving hole 12 and another cylindrical sealing surface 231 on the outer wall of the mounting post 11.

[0045] Optionally, the anti-theft electric energy meter further includes a circuit board 5. The frustum portion 22 is located between the circuit board 5 and the bottom plate 13. The circuit board 5 presses against the connection portion of the frustum portion 22 and the cylindrical portion 23 so that the connection portion of the frustum portion 22 and the cylindrical portion 23 closely adheres to the end of the mounting post 11. Preferably, a second annular sealing surface 221 is formed between the connection portion of the frustum portion 22 and the cylindrical portion 23 and the end of the mounting post 11. This can improve the sealing effect of the waterproof button 3 to a greater extent. The circuit board 5 is provided with a switch structure corresponding to the button 3.

[0046] The material of the elastic seal 2 can be selected as rubber or the like. In this embodiment, the elastic seal 2 is made of silica gel.

[0047] A ring groove 31 is provided at the tail end of the button 3. The mounting portion 21 is fixedly connected to the button 3 through the ring groove 31. Specifically, an embedding groove for cooperating with the tail end of the button 3 is provided at the top of the mounting portion 21, and the cross section of the embedding groove is convex-shaped.

[0048] The upper shell 1 and the elastic seal 2 can be either a split structure or an integral structure. When the upper shell 1 and the elastic seal 2 are of a split structure, the mounting post 11 of the upper shell 1 is adhesively connected or welded to the cylindrical portion 23. When the upper shell 1 and the elastic seal 2 are of an integral structure, the upper shell 1 and the elastic seal 2 can be an integral structure formed by insert injection molding.

[0049] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. Anti-theft electric energy meter, characterized by: include A key, wherein the head of the key is provided with a first lead seal penetration groove communicating with the peripheral wall and the end surface thereof, and the key is provided with a protrusion; An upper shell, wherein the upper shell is provided with a receiving hole, wherein the button is slidably arranged in the receiving hole along the axial direction, and the button is rotatable relative to the receiving hole, wherein the inner wall of the receiving hole is provided with a stop ring protruding inwardly, wherein the stop ring is provided with a groove for avoiding the protrusion, and wherein the upper shell is provided with a second lead sealing groove connecting the outer surface thereof and the inner wall of the receiving hole; A lead sealing structure, wherein the lead sealing structure comprises a lead sealing rope; When the first lead seal penetration groove is connected with the second lead seal penetration groove, the lead seal rope passes through the first lead seal penetration groove and the second lead seal penetration groove, the protrusion is misaligned with the through groove, and the stop ring stops the protrusion.

2. The anti-theft electric energy meter according to claim 1, characterized in that: There are multiple protrusions on the key, and the multiple protrusions are evenly distributed around the axis of the key.

3. The anti-theft electric energy meter according to claim 1 is characterized in that: The first lead seal penetration groove forms a straight groove on the end surface of the head of the key.

4. The anti-theft electric energy meter according to claim 1, characterized in that: The upper shell is provided with a mounting column, the receiving hole is provided in the mounting column, a bottom plate is provided in the receiving hole, and a through hole is provided on the bottom plate; it also includes an elastic sealing member and a reset member, the tail end of the button passes through the through hole to connect the elastic sealing member, the reset member is provided in the receiving hole and is located on the side of the bottom plate close to the stop ring, and the reset member contacts the button and the bottom plate respectively.

5. The anti-theft electric energy meter according to claim 4 is characterized in that: The elastic seal includes a mounting portion, a conical portion and a cylindrical portion which are sequentially connected from the inside to the outside, the mounting portion abuts against the inner side surface of the base plate, the cylindrical portion is sealed and connected to the mounting column to form a cylindrical sealing surface, and the tail end of the button passes through the through hole and is fixedly connected to the mounting portion.

6. The anti-theft electric energy meter according to claim 5, characterized in that: The tail end of the button is provided with an annular groove, and the mounting portion is fixedly connected to the button through the annular groove.

7. The anti-theft electric energy meter according to claim 5, characterized in that: The elastic sealing member is a rotating body structure.

8. The anti-theft electric energy meter according to claim 5, characterized in that: The elastic sealing element is made of rubber.

9. The anti-theft electric energy meter according to claim 5, characterized in that: A first annular sealing surface is formed between the mounting portion and the bottom plate.

10. The anti-theft electric energy meter according to claim 5, characterized in that: The outer wall surface of the cylinder is sealedly connected to the inner wall surface of the mounting post; and / or the inner wall surface of the cylinder is sealedly connected to the outer wall surface of the mounting post.

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