CN106556723B - A protective device for metering box of electric energy meter - Google Patents

Abstract

The invention discloses a protection device for a metering box of an electric energy meter, which comprises an outer box body, a fireproof cotton layer is fixedly installed on the inner surface of the outer box body, and an inner box body is fixedly connected to the inside of the outer box body through a supporting beam. The inside of the inner box is provided with an installation cavity, one side surface of the outer box is provided with a rotating seat, the interior of the rotating seat is provided with a rotating hole, and the lower surface of the rotating hole is provided with an upper fixing groove, The inside of the rotating hole is hinged with a closed door through a rotating rod. The lower end of the outer surface of the rotating rod is provided with a lower fixing groove. The outer surface of the rotating rod is connected to a twisted spring in rotation. Inside the upper fixing groove, the lower end of the torsion spring is fixedly installed inside the lower fixing groove. The protection device for the metering box of the electric energy meter can greatly improve the protection strength and the service life of the metering box through the isolation effect of the two-layer box body and the fireproof surface layer.

Description

A protective device for metering box of electric energy meter

technical field

The invention relates to the technical field of metering boxes, in particular to a protective device for metering boxes of electric energy meters.

Background technique

In real life, the metering box of the electric energy meter is installed outdoors, relying only on the protection of the metering box, it is easily affected by the weather, such as a long period of thunderstorm weather, water may enter the metering box, and once water enters, the electric energy meter will burn out, etc. In some cases, some electric energy meter metering boxes are not installed outdoors. Although the influence of the weather is avoided, there are also cases where the electric meter burns out due to overload or short circuit due to improper use of the user's electrical equipment. The burnout further expands the scope of the accident, causing power outages in the area, and even fires. In addition, the closed doors of the existing metering boxes are mostly simple hinged structures. After the staff checks, they may forget to close the door. It will cause the closed door to be in a normally open state. Once it encounters a thunderstorm, it will cause water ingress and cause an accident. It is very unsafe to use. In addition, most of the existing metering boxes are a thin layer of iron, and the strength is relatively poor. It is easy to be damaged, which will affect the normal use and increase the maintenance cost in the later period.

Contents of the invention

The purpose of the present invention is to provide a protection device for the metering box of an electric energy meter, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the present invention provides the following technical solutions: a protective device for the metering box of an electric energy meter, including an outer box body, the inner surface of the outer box body is fixedly installed with a fireproof cotton layer, and the inside of the outer box body is supported by The beam is fixedly connected with an inner box body, the interior of the inner box body is provided with a mounting cavity, one side surface of the outer box body is provided with a rotating seat, and the interior of the rotating seat is provided with a rotating hole, and the rotating hole The lower surface is provided with an upper fixing groove, and the inside of the rotating hole is hinged with a closed door through a rotating rod. The lower end of the outer surface of the rotating rod is provided with a lower fixing groove. The upper end of the torsion spring is fixedly installed inside the upper fixing groove, the lower end of the torsion spring is fixedly installed inside the lower fixing groove, the inner surface of the closed door is provided with a groove, and the inside of the groove is fixedly installed with An annular gasket, the annular gasket is slidably connected to the outlet of the inner box, the outer end of the inner surface of the closed door is fixedly equipped with magnets, and the two sides of the front surface of the outer box are provided with adsorption grooves, so The magnet is magnetically adsorbed on the inner surface of the adsorption groove, the rear connecting seat is provided at the center of the rear end surface of the outer box, and the front connecting seat is provided at the center of the rear end surface of the airtight door, and the front connecting seat and The inside of the rear connecting seat is provided with lock holes, the lower surface of the inner box is provided with a through hole, the inside of the through hole is fixedly installed with a threading pipe, the inside of the threading pipe is provided with a threading hole, and the threading pipe The inner surface of the hole is fixedly connected with a dust-proof baffle.

Preferably, there are at least six support beams and they are equally spaced.

Preferably, the outlet of the inner box is located at the front end of the outer box.

Preferably, the depth of the groove is not less than the length of the outlet of the inner box.

Preferably, there are two torsion springs.

Preferably, the annular gasket is made of rubber.

Preferably, the dust-proof flaps have at least four layers and are distributed in a staggered manner.

Preferably, a lock is slidably connected inside the lock hole.

Compared with the prior art, the beneficial effect of the present invention is that the protection device for the metering box of the electric energy meter can effectively improve the effect of fire prevention through the isolation effect of the two-layer box body and the fireproof surface layer, and the twisted spring can automatically close the door, and cooperate with the ring The gasket can play a very good dustproof and waterproof effect, greatly improving the protection strength and increasing the service life of the metering box.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a schematic diagram of the closed state of the present invention;

Fig. 3 is A-A figure of the present invention;

Fig. 4 is a sectional view of the threading pipe of the present invention.

In the figure: 1 outer box body, 11 fireproof cotton layer, 12 support beam, 13 rotating seat, 14 rotating hole, 15 upper fixing groove, 16 adsorption groove, 17 rear connecting seat, 18 keyhole, 2 inner box body, 21 installation cavity, 22 through holes, 23 threading pipes, 24 threading holes, 25 dust-proof baffles, 3 closed doors, 31 grooves, 32 ring gaskets, 33 magnets, 34 front connecting seats, 35 lower fixing grooves, 36 rotating rods, 37 twist springs.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figures 1-4, the present invention provides a technical solution: a protective device for the metering box of an electric energy meter, including an outer box 1, a fireproof cotton layer 11 is fixedly installed on the inner surface of the outer box 1, and the outer box 1 The interior is fixedly connected with the inner box body 2 through the support beam 12, and the outlet of the inner box body 2 is located at the front end of the outer box body 1, which can facilitate the closing of the closed door 3, and also facilitates operation in the installation cavity 21, the support beam 12. There are at least six and equally spaced distribution, so that the connection can be more firmly, and the equidistant distribution helps to improve the overall strength and ensure stability. The interior of the inner box body 2 is provided with a mounting cavity 21, and one side of the outer box body 1 The surface is provided with a rotating seat 13, and the inside of the rotating seat 13 is provided with a rotating hole 14, and the lower surface of the rotating hole 14 is provided with an upper fixing groove 15, and the inside of the rotating hole 14 is hinged with a closed door 3 by a rotating rod 36, and the rotating rod 36 The lower end of the outer surface is provided with a lower fixing groove 35, and the outer surface of the rotating rod 35 is rotatably connected with a torsion spring 37, and there are two torsion springs 37, which can ensure that there is a torsion spring 37 at the top and bottom respectively, ensuring that the pre-tightening force can close the closed door 3. To improve the protection strength, the upper end of the twisted spring 37 is fixedly installed inside the upper fixing groove 15, the lower end of the twisted spring 37 is fixedly installed inside the lower fixing groove 35, and the inner surface of the closed door 3 is provided with a groove 31, the groove The depth of 31 is not less than the outlet length of the inner box body 2, so that the inner box body 2 can be completely closed, and the closed door 3 can be completely close to the front end surface of the outer box body 1, reducing the gap helps to prevent rain and dust, and the concave The inside of the groove 31 is fixedly installed with an annular gasket 32. The annular gasket 32 is made of rubber. The sealing performance of the rubber is relatively good, and the cost is relatively low. It is economical and practical. The annular gasket 32 is slidably connected to the inner box 2 At the exit, a magnet 33 is fixedly installed on the inner surface outer end of the closed door 3, and both sides of the front surface of the outer casing 1 are provided with adsorption grooves 16, and the magnet 33 is magnetically adsorbed on the inner surface of the adsorption groove 16, and the outer casing 1 The rear end surface center is provided with a rear connecting seat 17, and the rear end surface center of the airtight door 3 is provided with a front connecting seat 34, and the insides of the front connecting seat 34 and the rear connecting seat 17 are all provided with lockholes 18, and the inside of the lockhole 18 is The sliding connection is equipped with a lock to prevent other personnel from opening it by itself. On the one hand, it can ensure the safety of the equipment, and on the other hand, it can also prevent the occurrence of electric shock hazards. The lower surface of the inner box 2 is provided with a through hole 22, and the interior of the through hole 22 is fixed A threading pipe 23 is installed, and the inside of the threading pipe 23 is provided with a threading hole 24, and the inner surface of the threading hole 24 is fixedly connected with a dust-proof baffle 25, and the dust-proof baffle 25 has at least four layers and is distributed in a staggered manner. It can pass through smoothly, and can fill as many gaps as possible, effectively prevent moisture and dust from entering, and improve the protective effect.

When the present invention is actually implemented: when in use, the outer box body 1 is fixedly installed at the installation position, then the closed door 3 can be opened, the meter is installed inside the installation cavity 21, and then the cable can be passed through the inside of the wire hole 24 into the Once inside the installation cavity 21, the wiring can be completed. At the same time, since the dust-proof flaps 25 exist separately one by one, it can ensure that the wires pass through smoothly, and due to the problem of flexibility, the dust-proof flaps 25 will be bent by the cables. Thereby filling the gap, effectively ensuring the dustproof and waterproof effect, improving the protection strength, and in the process of use, the fireproof cotton layer 11 isolates the inner box body and the outer box body 2, which can effectively prevent the external fire source from damaging the meter. And when a short circuit occurs inside and catches fire, it can also prevent the fire from spreading. After completing the installation work or daily inspections, some personnel will forget to close the closed door 3 due to negligence, and at this time the preload of the torsion spring 37 will close the closed door. The door 3 is closed, and the magnet 33 can be adsorbed inside the adsorption groove 16 to prevent the wind force from blowing the closed door open, thereby effectively improving the protective effect during use.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (1)

1. a kind of box of electric energy meter protective device, including outer case (1), it is characterised in that: the inside table of the outer case (1) Face is fixedly installed with anti-guncotton layer (11), and the inside of the outer case (1) is fixedly connected with internal box by supporting beam (12) (2), the inside of the internal box (2) is equipped with installation cavity (21), and a side surface of the outer case (1) is equipped with rotation seat (13), The inside of the rotation seat (13) is equipped with rotation hole (14), and the lower surface of the rotation hole (14) is equipped with upper fixing groove (15), institute The inside for stating rotation hole (14) is hinged with closing door (3) by rotating bar (36), and the outer surface lower end of the rotating bar (36) is set Have lower fixing groove (35), the outer surface of the rotating bar (35) is rotatably connected to curved spring (37), the curved spring (37) Upper end be fixedly installed in the inside of fixing groove (15), the lower end of the curved spring (37) is fixedly installed in lower fixing groove (35) interior surface of inside, the closing door (3) is equipped with groove (31), and the inside of the groove (31) is fixedly installed with ring Shape gasket (32), the Gask-O-Seal (32) are slidably connected to the exit of internal box (2), the closing door (3) it is interior Portion, outer end, surface is fixedly installed with magnet (33), and two side of front-end surface of the outer case (1) is equipped with adsorption tank (16), described Magnet (33) is magnetically attached to the interior surface of adsorption tank (16), connects after being equipped at the rear end surface center of the outer case (1) Seat (17) is equipped with preceding attachment base (34) at the rear end surface center of the closing door (3), the preceding attachment base (34) and connects afterwards The inside of seat (17) is equipped with lockhole (18), and the lower surface of the internal box (2) is equipped with through-hole (22), the through-hole (22) it is interior Portion is fixedly installed with penetration pipe (23), and the inside of the penetration pipe (23) is equipped with threading hole (24), the threading hole (24) it is interior Portion surface is fixedly connected with dust-proof baffle (25)；

The supporting beam (12) at least six roots of sensation and equidistantly distributed；

The exit of the internal box (2) is located at the front end of outer case (1)；

The depth of the groove (31) is not less than the outlet length of internal box (2)；

The curved spring (37) has two；

The Gask-O-Seal (32) is made of rubber；

It at least four layers of the dust-proof baffle (25) and is interspersed；

Lockhole (18) internal slide is connected with lockset.