CN206223835U - A kind of watchcase of three-phase guide rail ammeter - Google Patents

Abstract

The utility model discloses a case of a three-phase guide rail electric meter, which comprises a front case and a rear case. The front case and the rear case are butted to form a case cavity, and a three-phase wiring unit is arranged in the case cavity. The front case It includes an upper front case and a lower front case connected to each other, a hook is provided on the inner wall of the upper front case, and a slot matching the hook is provided on the inner wall of the rear case, and the upper front case and the The rear shell is connected by the hook and the slot, the lower part of the lower front shell is detachably connected with a protective cover, the top of the rear shell is pierced with a first connecting piece, and the first connecting piece is movable connected to the rear shell. The utility model, through reasonable design, makes the connection of the front shell, the rear shell and the three-phase wiring unit into a whole, so that the connection structure is more stable and durable, and the safety is higher.

Description

Case of a three-phase guide rail ammeter

technical field

The utility model relates to a guide rail electric meter, in particular to a case of a three-phase guide rail electric meter.

Background technique

A large amount of power consumption is concentrated in low-voltage power distribution terminals. In order to strengthen the measurement and management of terminal power and facilitate on-site use, transformation and upgrading of users, a rail-type power meter has emerged as the times require. It has high measurement accuracy, strong overload capacity, and stable performance. Reliability, wide operating voltage range, and low power consumption are quickly promoted by the market. Moreover, it is small in size and light in weight, and can be used in conjunction with a miniature circuit breaker to be installed in a distribution box to realize terminal power distribution power metering.

The shell of the current low-voltage guide rail is fixedly connected by bolts, and the connection structure is neat and unstable, which cannot prevent illegal operation and electricity theft, and the security is poor

To sum up, there is a need for a three-phase rail meter with a stable and durable structure and higher safety.

Utility model content

The technical problem to be solved by the utility model is that the stability of the existing guide rail case is poor and the safety is low.

In order to solve the above technical problems, the technical solution adopted by the utility model is to provide a watch case of a three-phase guide rail electric meter, including a front case and a rear case, the front case and the rear case are butted to form a shell cavity, and the shell cavity A three-phase wiring unit is provided inside, and the front case includes an upper front case and a lower front case connected to each other, a hook is provided on the inner wall of the upper front case, and a hook is provided on the inner wall of the rear case. Matching card slot, the upper front shell is connected with the rear shell through the hook and the card slot, the lower part of the lower front shell is detachably connected with a protective cover, and the top of the rear shell is pierced with a first A connecting piece, and the first connecting piece is movably connected to the rear shell.

In the above solution, a plurality of installation grooves are provided on the outer wall of the rear case, and a second connecting piece is clamped in each of the installation grooves, and a through hole is opened on the second connecting piece.

In the above solution, guide rail grooves are provided on the outer wall of the rear shell.

In the above solution, there are two hooks and two slots respectively, and they are symmetrically arranged left and right.

In the above solution, the inner wall of the rear case is further provided with an installation arm for installing parts of the electric meter.

In the above solution, the front side of the protective cover has an arc-shaped surface, and the rear side of the protective cover is open.

In the above solution, the first connecting piece and the top of the rear case are sequentially provided with screws, and the top side wall of the rear case is recessed inwardly to form a groove, and the screws drive the first connection The sheet turns into or out of the groove.

In the utility model, through reasonable design, the front and rear shells and the three-phase wiring unit are connected as a whole, so that the connection structure is more stable and durable, and the safety is higher.

Description of drawings

Fig. 1 is the profile front structure schematic diagram of the present utility model;

Fig. 2 is a schematic diagram of the back structure of the appearance of the utility model;

Fig. 3 is a schematic diagram of the internal structure of Fig. 2 with the front shell and protective cover removed.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in detail.

As shown in Figures 1 to 3, the case of a three-phase rail electric meter provided by the utility model includes a front case and a rear case 1, and the front case and the rear case 1 are docked to form a shell cavity, and a three-phase The wiring unit 4, the three-phase wiring unit 4 can adopt existing various products, and the front shell includes an upper front shell 2 and a lower front shell 3 that are connected to each other as a whole, so that the three-phase wiring unit 4 is connected with the watch case as a whole, Thereby, the stability and anti-theft performance of the overall structure are improved, and the shaking of the three-phase wiring unit 4 is avoided. The bottom of the lower front shell 3 is provided with a protective cover 15, and the front side of the protective cover 15 is an arc-shaped surface. The hook and the inner wall of the rear case 1 are provided with a slot 9 matching the hook, and the upper front case 2 and the rear case 1 are connected as a whole through the hook and the slot 9 .

Further preferably, the top of the rear case 1 is pierced with a first connecting piece 5 , and the first connecting piece 5 is movably connected to the rear case 1 . The first connecting piece 5 and the top of the rear shell 1 are sequentially provided with screws 6, and the top side wall of the rear shell 1 is recessed inwardly with a groove 7, and the screw 6 drives the first connecting piece 5 to turn into or out of the groove 7, so that the installation position of the electric meter case of the groove can be effectively adjusted, and space can be saved.

Further preferably, two installation grooves are provided on the outer wall of the rear case 1, and a second connecting piece 16 is detachably clamped in each installing groove, and a through hole is opened on the second connecting piece 16, and the second connecting piece 16 can carry other components or be used to mount the meter body on the wall.

Further preferably, a guide rail groove 14 is provided on the outer wall of the rear case 1 for installing the guide rail ammeter case itself, and two hooks and two draw grooves 9 are respectively arranged symmetrically to the left and right, which further improves the stability of the connection. An installation arm 17 for installing parts of the meter is also provided on the inner wall of the rear case 1, so that other elements of the meter can be installed.

In the utility model, through reasonable design, the front and rear shells and the three-phase wiring unit are connected as a whole, so that the connection structure is more stable and durable, and the safety is higher.

The utility model is not limited to the above-mentioned best implementation mode, and anyone should know that the structural changes made under the inspiration of the utility model, all technical solutions that are the same as or similar to the utility model, all fall into the scope of the utility model within the scope of protection.

Claims (7)

1. A watch case of a three-phase guide rail electric meter, comprising a front case and a back case, the front case and the back case are butted to form a shell cavity, and a three-phase wiring unit is provided in the shell cavity, it is characterized in that the front The shell includes an upper front shell and a lower front shell which are connected to each other. The inner wall of the upper front shell is provided with a hook, and the inner wall of the rear shell is provided with a slot matching the hook. The upper front shell It is connected with the rear shell through the hook and the slot, the lower part of the lower front shell is detachably connected with a protective cover, the top of the rear shell is pierced with a first connecting piece, and the first connecting piece It is flexibly connected to the rear shell. 2. The watch case of the three-phase guide rail ammeter as claimed in claim 1, wherein the outer wall of the rear case is provided with a plurality of installation grooves, each of which is snapped with a second connecting piece in the installation groove , the second connecting piece is provided with a through hole. 3 . The watch case of a three-phase guide rail ammeter according to claim 1 , wherein a guide rail groove is provided on the outer wall of the rear case. 4 . 4 . The watch case of a three-phase guide rail ammeter according to claim 1 , wherein two hooks and two slots are respectively arranged symmetrically. 5 . The case of the three-phase guide rail ammeter according to claim 1 , wherein an installation arm for installing parts of the ammeter is also provided on the inner wall of the rear case. 6 . 6 . The case of the three-phase guide rail ammeter according to claim 1 , wherein the front side of the protective cover is arc-shaped, and the rear side of the protective cover is open. 7 . 7. the watch case of three-phase guide rail ammeter as claimed in claim 1, is characterized in that, on the top of described first connecting piece and described back shell, pass to be provided with screw successively, the top side wall of described back shell is to The inner depression is provided with a groove, and the screw drives the first connecting piece to turn into or out of the groove.