Protection device capable of prolonging service life of metering box of electric energy meter
A technology of protective devices and metering boxes, which is applied in the direction of measuring devices, measuring electrical variables, measuring time integration, etc., can solve the problems of animal damage, metering box electric energy meters are easily exposed to rain, etc., so as to prolong the service life and avoid rain Effect
Inactive Publication Date: 2018-04-27
YANTAI POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER +1
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Problems solved by technology
However, the staff will forget to close the door of the box for some reasons, resulting in the electric energy meter in the metering box being easily damaged by rain, animals, etc.
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.
[0029] figure 1 A structural schematic diagram of a protective device that effectively prolongs the service life of the metering box of the electric energy meter provided by the embodiment of the present invention; figure 2 for figure 1 Schematic diagram of the cooperation relationship between the recovery mechanism and the metering box body; image 3 for figure 1 Schematic diagram of the coordination relationship between the delay mechanism and the metering box body; Figure 4 for image 3 Schematic diagram of the structure of another perspective; Figure 5 for Figure 4 Schematic diagram of the structure of the delay mechanism; Image 6 Schematic diagram of the structure of the torsion spring.
[0030] See figure 1 As shown, the embodiment of the present invention ...
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The invention, which belongs to the technical field of electric facilities, discloses a protection device for a metering box of an electric energy meter. The protection device comprises a metering boxbody and a return mechanism. The metering box includes a box body and a box door; a rotating shaft is fixed at the box body; and a sleeve is fixedly arranged at the box door. The return mechanism consists of a first reset torsion spring and a first damping assembly; the first reset torsion spring is connected with the rotating shaft and the sleeve, so that the box door has a trend of rotating relative to the box body and sealing an open end; and the first damping assembly includes two first damping rings that are in contact with each other and are used for limiting the rotation speed of the box door relative to the box body. According to the protection device provided by the invention, the box door can be closed automatically and the open end of the box body can be sealed and thus the electric energy meter is in a relative sealed environment, so that a phenomenon that the electric energy meter is wetted by rain or is damaged by animals because of the mistake of the staff can be avoided and thus the service life of the electric energy meter is prolonged.
Description
technical field [0001] The invention relates to the technical field of electric power facilities, in particular to a protection device for a metering box of an electric energy meter. Background technique [0002] The energy meter metering box is the whole of measuring instruments and auxiliary equipment necessary for measuring electric energy, including electric energy meters, voltage for metering, current transformers and their secondary circuits, electric energy metering screens, cabinets, boxes, etc. [0003] In actual use, the metering box of the electric energy meter is placed in a natural environment. In order to prevent damage to the electric energy meter, etc., the door of the metering box needs to be closed. However, the staff may forget to close the box door for some reasons, causing the electric energy meter in the metering box to be easily damaged by rain, animals, etc. Contents of the invention [0004] The purpose of the present invention is to provide a pro...
Claims
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IPC IPC(8): G01R11/04
CPCG01R11/04
Inventor 孙明增王建星张云军乔敏瑞周广胜董莉李超曹帅
Owner YANTAI POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER