Electric energy metering box
Technical Field
The utility model relates to the technical field of metering boxes, in particular to an electric energy metering box.
Background
The electric energy metering box is a necessary device before the electric power line enters a household, and particularly in recent years, along with the development of economy, the acceleration of urban construction steps and the acceleration of industrialization upgrading, the electric power demand is continuously increased, and the investment force on electric power infrastructures including rural power network transformation, urban transformation and the like is increased in China, so that the electric energy metering box has a wide development space as an electric power product terminal meter. The electric energy metering box generally refers to a box for containing an electric meter, and is generally integrated with an electric energy meter, a voltage for metering, a current transformer, a secondary circuit and the like, and is used for total circuit distribution for all users, and the electric energy metering box can be divided into a high-voltage electric energy metering box and a low-voltage electric energy metering box according to voltage and can be divided into indoor and outdoor electric energy metering boxes according to the use positions.
However, in order to solve the problem of heat dissipation in the electric energy metering box, ventilation openings are usually formed in two sides of the box body, so that air carrying dust can easily enter the box body through the ventilation openings between the ventilation openings, and the air enters the box body to pollute a meter firstly so as to shorten the service life of the meter, and secondly, a visual window of the box body is polluted so that an operator cannot see the reading of the meter clearly, and in addition, after the dust enters the meter, the accuracy of metering of the dust can be influenced so that the dust cannot be metered accurately.
Disclosure of Invention
The utility model aims to provide an electric energy metering box, which aims to solve the problem of heat dissipation in the electric energy metering box in the prior art, and is characterized in that ventilation openings are formed in two sides of a box body, so that dust-entrained air can easily enter the box body through the ventilation openings between the ventilation openings, and the air enters the box body to pollute a meter firstly, so that the service life of the meter can be shortened, and secondly, a visual window of the box body is polluted, so that an operator cannot see the reading of the meter clearly, and in addition, after the dust enters the meter, the metering accuracy of the meter can be influenced, so that the meter cannot be metered accurately.
In order to achieve the purpose, the electric energy metering box comprises a box body, wherein an installation cavity is formed in the box body, a plurality of ventilation openings are formed in two sides of the outer wall of the box body, the ventilation openings are communicated with the installation cavity, a dustproof device is arranged on the inner wall of the installation cavity and located at the position opposite to the ventilation openings, the dustproof device comprises a fixing seat and a dustproof net, the fixing seat is fixedly arranged on the inner wall of the installation cavity, a through hole is formed in the middle of the fixing seat and located at the position opposite to the ventilation openings, and the dustproof net is movably connected to the position, located at the through hole, of the fixing seat.
Preferably, limiting blocks are symmetrically and fixedly arranged above and below the through holes on the surface of the fixing seat, and sliding grooves are formed in the limiting blocks.
Preferably, the two sides of the dustproof net are fixedly connected with sliding blocks, and the sliding blocks are slidably connected in the sliding grooves.
Preferably, the slide is adapted to the slide groove.
Preferably, the limiting block is located on the surface of the fixing seat and is in a structural design that the front is high and the rear is low.
Preferably, a sealing strip is fixedly arranged at the joint of one end surface of the dustproof net and the through hole, and a handle block is fixedly connected with the other end surface of the dustproof net at the middle part of the front end.
Preferably, the front end surface of the box body is fixedly connected with a door body through a hinge, and a visible window is arranged on the surface of the door body.
Advantageous effects
Compared with the prior art, the utility model has the beneficial effects that:
By combining the structural design of the utility model, when the box body dissipates heat through the vent, the dustproof device can prevent dust in the installation cavity, so that the service life of the meter and the visual definition of the visual window are ensured.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of the inner wall structure of the case of the present utility model;
Fig. 3 is a schematic structural view of a dust-proof device of the present utility model.
1.A case; 2, installing a cavity; 3, a ventilation opening; 4, a dustproof device, 5, a door body, 6, a visual window, 41, a fixing seat, 42, a limiting block, 43, a through hole, 44, a sliding groove, 45, a dustproof net, 46, a handle block, 47, a sliding block and 48, and a sealing strip;
51. And (5) an installation port.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "vertical", "horizontal", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements to be referred to must have a specific direction, construct and operate in the specific direction, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Fig. 1-3 are schematic structural diagrams of an electric energy metering box according to a preferred embodiment of the present utility model, in this embodiment, the electric energy metering box includes a box body 1, a mounting cavity 2 is formed in the box body 1, a plurality of ventilation openings 3 are formed on two sides of an outer wall of the box body 1, and the ventilation openings 3 are communicated with the mounting cavity 2, a dust-proof device 4 is disposed at a position opposite to the ventilation openings 3 on an inner wall of the mounting cavity 2, a dust-proof function is achieved by the dust-proof device 4, the dust-proof device 4 includes a fixing seat 41 and a dust-proof screen 45, the fixing seat 41 is fixedly mounted on the inner wall of the mounting cavity 2, a through opening 43 is formed in a position opposite to the ventilation openings 3 on a middle portion of the fixing seat 41, and the dust-proof screen 45 is movably connected to the position of the fixing seat 41, which is located at the through opening 43, so as to achieve the dust-proof effect by the dust-proof screen 45.
In this embodiment, the fixing seat 41 is symmetrically and fixedly installed with a limiting block 42 above and below the through hole 43, a sliding groove 44 is formed in the limiting block 42, two sides of the dust screen 45 are fixedly connected with sliding blocks 47, and the sliding blocks 47 are slidably connected in the sliding groove 44, so that the replacement effect of the dust screen 45 is achieved.
In this embodiment, the sliding block 47 is matched with the sliding groove 44, and the structural design reduces the gap between the sliding block 47 and the sliding groove 44, so that a better sliding fit is achieved.
In this embodiment, the limiting block 42 is located on the surface of the fixing seat 41 and is in a structural design with a high front and a low rear, and this structural design is used for preventing the dust screen 45 from being connected with the chute 44 through the slide block 47, so as to prevent the dust screen 45 from sliding out of the chute 44 during use, and thus the case 1 loses the dust-proof effect, and the service life is affected.
In this embodiment, dust screen 45 one end surface and the laminating of opening 43 department fixed mounting have sealing strip 48, can effectively avoid impurity such as dust to enter into the installation cavity 2 from the clearance department between sealing strip 48 and the opening 43 inside, dust screen 45 other end surface is located front end middle part fixedly connected with handle piece 46 simultaneously, is convenient for take out in dust screen 45 follow spout 44 through handle piece 46, can select corresponding dust screen 45 according to the in-service use environment, play the effect of being convenient for change dust screen 45.
In this embodiment, box 1 front end surface pass through hinge fixedly connected with door body 5, door body 5 surface has seted up mounting port 51, installs visual window 6 in the mounting port 51, this structural design can make the observer, under the condition of not opening door body 5 again, observe the strapping table reading through visual window 6, visual window 6 surface scribbles nanometer transparent heat-proof glass coating simultaneously, this coating has thermal-insulated effect, prevents that the direct irradiation of sun from improving the inside temperature of installation chamber 2 probably.
The foregoing is a further elaboration of the present utility model in connection with the detailed description, and it is not intended that the utility model be limited to the specific embodiments shown, but rather that a number of simple deductions or substitutions be made by one of ordinary skill in the art without departing from the spirit of the utility model, should be considered as falling within the scope of the utility model as defined in the appended claims.