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CN-224231835-U - Electric energy meter

CN224231835UCN 224231835 UCN224231835 UCN 224231835UCN-224231835-U

Abstract

The application relates to an electric energy meter which comprises a shell, an upper cover and a lower cover, wherein the upper cover is fixedly connected with the shell, the lower cover is rotatably arranged on the upper cover, a mounting plate is arranged on the shell, a mounting groove for the mounting plate to be inserted is formed in the lower cover, the shell and the lower cover are connected with each other through a buckle of the mounting plate and the mounting groove, through holes for lead sealing to pass through are formed in the lower cover and the mounting plate, and the through holes in the lower cover are communicated with the mounting groove. The application integrates the structure of buckle fixing and the perforation for lead sealing to pass through, and realizes the functions of buckle fixing and lead sealing installation on the basis of a simple structure.

Inventors

  • GAO XIAOYONG
  • GAO HUAIYU

Assignees

  • 乐清市长佳仪器仪表有限公司

Dates

Publication Date
20260512
Application Date
20250402

Claims (10)

  1. 1. The electric energy meter is characterized by comprising a shell (1), an upper cover (2) and a lower cover (3), wherein the upper cover (2) is fixedly connected with the shell (1), the lower cover (3) is rotatably arranged on the upper cover (2), a mounting plate (4) is arranged on the shell (1), a mounting groove (31) for the mounting plate (4) to be inserted is formed in the lower cover (3), the shell (1) is in buckling connection with the lower cover (3) through the mounting plate (4) and the mounting groove (31), through holes (32) for lead sealing to pass through are formed in the lower cover (3) and the mounting plate (4), and the through holes (32) in the lower cover (3) are communicated with the mounting groove (31).
  2. 2. The electric energy meter according to claim 1, wherein one of the groove walls of the mounting groove (31) is a locking surface (311), the locking surface (311) is positioned on one side of the mounting plate (4) close to the rotating shaft of the lower cover (3), and a yielding groove (33) is formed in the locking surface (311).
  3. 3. The electric energy meter according to claim 2, wherein the groove side wall of the relief groove (33) is provided with a relief inclined surface (331), and the lower cover (3) can rotate until the relief inclined surface (331) is tangent to the end part of the mounting plate (4).
  4. 4. The electric energy meter according to claim 3, wherein a locking inclined surface (332) is formed on the groove side wall of the abdication groove (33), the locking inclined surface (332) is located on one side of the abdication inclined surface (331) close to the locking surface (311), the distance between the locking inclined surface (332) and the mounting plate (4) decreases along the direction away from the shell (1), the inclination direction of the abdication inclined surface (331) is consistent with that of the locking inclined surface (332), and an included angle formed by the abdication inclined surface (331) and the locking surface (311) is smaller than that formed by the locking inclined surface (332) and the locking surface (311).
  5. 5. The electric energy meter according to claim 4, wherein the end portion of the mounting plate (4) for being inserted into the mounting groove (31) is provided with a guide cambered surface (41), and the guide cambered surface (41) faces the locking surface (311) and is used for abutting against the locking inclined surface (332).
  6. 6. The electric energy meter according to claim 1, wherein the lower cover (3) comprises a mounting lug (5), the through hole (32) on the lower cover (3) is arranged on the mounting lug (5), and the hole wall of the through hole (32) extends in an arc shape.
  7. 7. The electric energy meter according to claim 6, wherein the lower cover (3) comprises a partition plate (8) arranged on the inner wall of the through hole (32), and the mounting groove (31) is formed by enclosing the mounting protruding block (5) and the partition plate (8).
  8. 8. The electric energy meter according to claim 2, characterized in that the housing (1) is provided with a guide plate (6), the guide plate (6) being adapted to be inserted into the yielding groove (33).
  9. 9. The electric energy meter according to claim 8, characterized in that the perforations (32) extend to the guide plate (6).
  10. 10. The electric energy meter according to claim 1, wherein the lower cover (3) is provided with a rotating rod (7), and the upper cover (2) is provided with a rotating groove (21) for inserting the rotating rod (7).

Description

Electric energy meter Technical Field The application relates to the field of electric energy meters, in particular to an electric energy meter. Background The electric energy meter is used for measuring electric energy, and a lead seal is required to be arranged to prevent an unauthorized person from illegally opening the electric energy meter, and is a safety measure for ensuring that the electric energy meter is not illegally tampered or unauthorized to be changed, but after some overhauls and checks are completed, the electric energy meter is required to be opened to take out the original lead seal, and a new lead seal is applied to ensure the safety of the electric energy meter. In the prior art, the electric energy meter comprises a shell, an upper cover and a lower cover, wherein the upper cover is fixedly arranged on the shell in a buckling connection mode and the like, and the lower cover is rotatably arranged on the upper cover. The shell and the lower cover are provided with perforations, and the lead seal passes through the perforations. The shell and the lower cover in the prior art are relatively fixed through the lead seal, and the total length of the lead seal is larger than the total length of the lead seal which bypasses from the perforation, so that the shell and the lower cover are loosened due to external factors in the use process of the electric energy meter, and the lower cover has the possibility of shaking. Disclosure of utility model In order to improve the installation stability of the lower cover and the shell, the application provides an electric energy meter. The application provides an electric energy meter, which adopts the following technical scheme: The utility model provides an electric energy meter, includes casing, upper cover and lower cover, upper cover and casing fixed connection, the lower cover rotates to set up on the upper cover, be equipped with the mounting panel on the casing, set up the mounting groove that supplies mounting panel male on the lower cover, the casing passes through mounting panel and mounting groove buckle with the lower cover to be connected, the perforation that is used for supplying the lead seal to pass is all offered on lower cover and the mounting panel, perforation and mounting groove intercommunication on the lower cover. Through adopting above-mentioned technical scheme, set up buckle structure on casing and lower cover, guarantee casing and lower cover relative locking, the rethread lead seal carries out the secondary and fixes, so even because external factor leads to electric energy meter itself to produce vibrations, casing and lid also can not produce relative not hard up, the locking between casing and the lid is more stable, and with the fixed structure of buckle with supply lead seal perforation integration in one place, realize buckle fixed and lead seal effect of installation on the basis of simple structure. Optionally, one of the groove walls of the mounting groove is a locking surface, the locking surface is located at one side of the mounting plate, which is close to the rotating shaft of the lower cover, and the locking surface is provided with a yielding groove. Through adopting above-mentioned technical scheme, through setting up the groove of stepping down, realize the groove of stepping down to the stepping down of mounting panel on the fixed basis of mounting panel and mounting groove buckle, reduce the deformation degree of mounting panel, reduce the mounting difficulty that the mounting panel card was gone into the mounting groove. Optionally, a yielding inclined plane is formed on a groove side wall of the yielding groove, and the lower cover can rotate until the yielding inclined plane is tangent to the end part of the mounting plate. Through adopting above-mentioned technical scheme, the inclined plane of stepping down is tangent with the tip of mounting panel, guarantees that the inclined plane of stepping down does not interfere with the side of mounting panel, guarantees that the lower cover can normally rotate, plays the effect of stepping down. Optionally, a locking inclined plane is formed on the groove side wall of the abdication groove, the locking inclined plane is located on one side of the abdication inclined plane, which is close to the locking surface, the distance between the locking inclined plane and the mounting plate decreases along the direction away from the shell, the abdication inclined plane is consistent with the inclination direction of the locking inclined plane, and the included angle formed by the abdication inclined plane and the locking surface is smaller than the included angle formed by the locking inclined plane and the locking surface. Through adopting above-mentioned technical scheme, the locking inclined plane is the slope setting, and locking inclined plane is contradicted with one of them side extrusion of mounting panel to mounting panel extrusion deformation, guide mount