CN2898839Y - Self-locking and lead-sealing free electrical energy meter casing structure against charge evasion - Google Patents

Abstract

A self-locking casing structure of an electrical energy meter that is free from charge evasion. And lead sealing. Both the meter cover and the terminal cover are designed with the claws. Claw holes are arranged on the base (including shell base and terminal base) for assembly. Clip assembly is adopted for assembly between meter cover and the base as well as between the terminal cover and the base. The claws are clipped onto the tables inside the holes. After clip assembly all claw holes are plugged up, with one hole being pressed by the meter cover (or the terminal cover) and the other being plugged up by the shell base assembly.

Description

Self-locking, anti-electricity-theft, exempt from lead sealing electric energy meter shell mechanism

Technical field

The utility model relates to a kind of electric energy meter shell mechanism.

Background technology

Present known electric energy meter structure is: electric energy meter table lid and drain pan, terminal cap and drain pan are all by the lead sealing screw retention, manufacturing plant is showing to cover on the lead sealing screw to encapsulate lead sealing after factory inspection is qualified, after electric energy meter was installed, installation department sealed up lead sealing on terminal cap lead sealing screw.But there is following shortcoming in present electric energy meter structure: 1, anti-electricity-theft poor performance: lead sealing is easily pried open, and is easy to buy lead sealing in addition on the market, destroys the lead sealing that can more renew after the former lead sealing, and lead sealing is difficult for being found after the recovery through destroying again; Just can open table lid and terminal cap after destroying lead sealing, can change the design or the counter indicating value of electric energy meter inside or install electricity filching device additional and carry out stealing, also can reach the purpose of stealing by the wiring that changes connection terminal in electric energy meter inside; 2, need screwing and sealing lead envelope, production and installation effectiveness are low.

Summary of the invention

For overcoming the deficiency that existing electric energy meter structure exists: electric energy meter table lid and drain pan, terminal cap and drain pan are all by the lead sealing screw retention, lead sealing is easily pried open or replacing, anti-electricity-theft poor performance, production and installation effectiveness are low, the utility model provide a kind of self-locking, anti-electricity-theft, exempt from lead sealing electric energy meter shell mechanism.

The technical scheme in the invention for solving the technical problem is: the end design of drain pan assembling (comprising drain pan and terminal base) has the claw button, other end design has the claw hole, corresponding with it electric energy meter table lid two ends design has claw, the claw that table covers an end is stuck in drain pan and assembles in the claw button of an end, the claw that table covers the other end snaps in the claw hole of the drain pan assembling other end, claw is stuck on the platform in the claw hole, and a mouth in claw hole is shown lid and pushed down, and another mouthful blocked by the drain pan assembling; Energy meter terminal covers design claw, after the design of corresponding with it drain pan fit on had claw hole, terminal cap claw to snap in drain pan assembling claw hole, claw was stuck on the platform in the claw hole, a mouth in claw hole is pushed down by terminal cap, and another mouthful blocked by the drain pan assembling.

The beneficial effects of the utility model are: because the table lid all adopts the mode of clamping to install with drain pan assembling, terminal cap and drain pan assembling, the claw hole that back drain pan fit on is installed all is plugged, can't touch claw from the watchcase outside, the table lid is all realized self-locking with drain pan assembling, terminal cap and drain pan assembling, so just can't open the table lid without destroying, can't or in table, install electricity filching device additional by the indoor design of change electric energy meter, counter indicating value and carry out stealing; Also can't open terminal cap without destroying, can't carry out stealing by the change connection box of electric energy meter, so this structure improve the anti-electricity-theft performance of electric energy meter, this structure is not screwed table lid and terminal cap, can exempt from the sealing lead envelope, improve production and installation effectiveness, also reduce cost of products.

Description of drawings

Further specify this use is novel below in conjunction with accompanying drawing:

Fig. 1 is the profile front view.

Fig. 2 is the A-A cut-open view.

Fig. 3 is the profile right view.

Fig. 4 is the front view of drain pan assembling.

Fig. 5 is the drain pan front view.

Fig. 6 is the B-B cut-open view.

Fig. 7 is that table covers front view and D-D cut-open view.

Fig. 8 is the C-C cut-open view.

Fig. 9 is terminal cap front view and E-E cut-open view.

Figure 10 is the terminal base front view.

Among Fig. 1: 1. table covers, 2. terminal cap, 3. claw boss.

Among Fig. 2: 1. table lid, 3. claw boss, 4. drain pan, 5. terminal base, 6. claw hole, 7. table covers the claw of lower end.

Among Fig. 3: 1. table covers, 2. terminal cap, 3. claw boss, 4. drain pan.

Among Fig. 4: 4. drain pan, 5. terminal base, 6. claw hole, 8. claw button.

Among Fig. 5: 4. drain pan, 6. claw hole, 8. claw button.

Among Fig. 6: 6. claw hole, 8. claw button.

Among Fig. 7: 3. claw boss, 7. table cover the lower end claw, 9. shows to cover the end claw.

Among Fig. 9: 3. claw boss, 10. terminal cap claw.

Among Figure 10: 5. terminal base.

Embodiment

The installation of table lid and drain pan assembling: among Fig. 2: the claw that will show lid (1) upper end earlier---(9) snap in the claw button on the drain pan (4) among Fig. 7---is among Fig. 5 in (8), and then the claw (7) that will show lid (1) lower end snaps in the claw hole (6) on the drain pan (4), and claw (7) is stuck on the platform in the claw hole (6).After clamping, the mouth below claw hole (6) is pushed down by table lid (1), blocked by terminal base (5) for inboard mouthful, and terminal base (5) show lid (1) and pushed down, and table lid (1) can't be opened, and table lid (1) and drain pan (4) have been realized self-locking.

The installation of terminal cap and drain pan assembling: the claw at terminal cap (2) two ends, the left and right sides---(10) snap in drain pan (4) two claw holes (6) bottom among Fig. 9, claw (10) is stuck on the interior platform in claw hole (6), claw hole (6) mouth is outwardly pushed down by terminal cap (2), then blocked for inboard mouthful by terminal base (5), and terminal base (5) shown the lid (1) push down, terminal cap (2) can't be opened, and terminal cap (2) realizes self-locking with drain pan (4).

Claims (2)

1, a kind of self-locking, anti-electricity-theft, exempt from lead sealing electric energy meter shell mechanism, it is made up of table lid, drain pan assembling, terminal cap, it is characterized in that: all designing on table lid and the terminal cap has claw, the design of drain pan fit on has the claw hole, and the table lid all adopts the mode of clamping to install with drain pan assembling, terminal cap and drain pan assembling.

2, according to right 1 described self-locking, anti-electricity-theft, exempt from lead sealing electric energy meter shell mechanism, it is characterized in that: after the claw on table lid and the terminal cap snaps in the claw hole of drain pan fit on, claw is stuck on the platform in the claw hole, the mouth in claw hole is all sealed: a mouth in claw hole is shown lid or terminal cap is pushed down, and another mouth is then blocked by the drain pan assembling.

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