Guide rail type electric energy meter with load protection function

Abstract

The utility model discloses a guide rail type electric energy meter with a load protection function, which comprises a meter body and an interface, an electric wire is electrically connected with the meter body through a bolt at the interface, the meter body is provided with a circular groove, an arc-shaped block I and an arc-shaped block II are attached to the circular groove, and the arc-shaped block I and the arc-shaped block II are arranged in the circular groove. The first arc-shaped block and the second arc-shaped block are provided with a first open groove and a second open groove respectively, the first open groove and the second open groove are attached to the outer wall of the electric wire, a clamping block is fixed to the first arc-shaped block, and a clamping groove matched with the clamping block is formed in the second arc-shaped block. According to the utility model, the circular block is attached to the edge groove, the circular block extends into the abutting groove, the screw rod penetrates through the through hole and is connected with the screw hole through threads, after the connecting block is attached to the meter body under the action of the screw rod, the circular block fixes the second arc-shaped block and the meter body, and the first arc-shaped block and the second arc-shaped block are matched to shield and protect the exposed wire core part of the electric wire. The electric leakage phenomenon is effectively prevented, and higher safety is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric energy meters, in particular to a rail-type electric energy meter with a load protection function. Background Art

[0002] When the rail-type electric energy meter is in operation, once the power system exceeds the specified load, its load protection function will cut off the power supply in time to protect the safe operation of electrical equipment.

[0003] When the rail-type electric energy meter is connected to the zero line and the live line, the staff needs to first strip the cable skin of the zero line and the live line, and then insert the wire cores of the cables into the connection ports of the zero line and the live line, and fix the wire cores of the cables to the conductive sheets of the rail-type electric energy meter through bolts.

[0004] Since the connection port sizes of the zero line and the live line of the electric energy meter are relatively large, after the wire cores of the cables are connected to the electric energy meter, some wire cores will be exposed at the connection ports of the zero line and the live line. Since the exposed wire cores lose protection, once the environmental humidity is high, electric leakage is likely to occur.

[0005] Therefore, the traditional rail-type electric energy meter can be improved to avoid the above-mentioned problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a rail-type electric energy meter with a load protection function in order to solve the above problems.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A rail-type electric energy meter with a load protection function includes a meter body and an interface. At the interface, an electric wire is electrically connected to the meter body through a bolt. A circular groove is formed on the meter body, and an arc-shaped block one and an arc-shaped block two are attached to the circular groove. A slot one and a slot two that fit the outer wall of the electric wire are respectively formed on the arc-shaped block one and the arc-shaped block two. A clamping block is fixed on the arc-shaped block one, and a clamping slot adapted to the clamping block is formed on the arc-shaped block two. A limiting member for limiting the arc-shaped block one and the arc-shaped block two is provided on the meter body.

[0009] Preferably, the limiting member includes a side groove and a resisting groove formed on the arc-shaped block two. A circular block is clamped in the resisting groove. The side groove abuts against a side block. A connecting block is fixed on the side block. A through hole is formed on the connecting block, and a threaded hole adapted to the through hole is formed on the meter body. A screw rod passes through the through hole, and the screw rod is threadedly connected to the threaded hole. An end block is fixed to the end of the screw rod.

[0010] Preferably, a spring is sleeved on the screw rod, and one end of the spring abuts against the end block, and the other end abuts against the connecting block.

[0011] Preferably, a first groove and a second groove are provided at the circular groove, and a first convex block and a second convex block adapted to the first groove and the second groove are respectively fixed on the first arc-shaped block and the second arc-shaped block.

[0012] Preferably, elastic pads are provided on the portions of the first arc-shaped block and the second arc-shaped block that are in contact with the circular groove.

[0013] Preferably, when the side block fits with the side groove, the outer wall of the side block is flush with the outer wall of the second arc-shaped block.

[0014] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0015] 1. In this application, the circular block fits with the side groove, and the circular block extends into the abutting groove. The screw rod passes through the through hole and is threadedly connected with the threaded hole. Under the action of the screw rod, after the connecting block fits with the meter body, the circular block fixes the second arc-shaped block and the meter body. The first arc-shaped block and the second arc-shaped block cooperate to shield and protect the exposed wire core part of the wire, effectively preventing electric leakage and being safer.

[0016] 2. In this application, under the action of the spring, it can prevent the end block from damaging the connecting block when approaching the connecting block during rotation, playing a protective effect on the connecting block. Therefore, the first arc-shaped block and the second arc-shaped block can stably protect the wire core of the wire and prevent the exposed wire core from directly contacting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shows a schematic diagram of the overall structure of a rail type electric energy meter provided according to an embodiment of the present utility model;

[0018] Figure 2 Shows a schematic diagram of a partial structure of a rail type electric energy meter provided according to an embodiment of the present utility model;

[0019] Figure 3 Shows a schematic diagram of the structures of the first arc-shaped block and the second arc-shaped block provided according to an embodiment of the present utility model;

[0020] Figure 4 Shows a schematic diagram of a partial structure of a card slot provided according to an embodiment of the present utility model;

[0021] Legend Explanation:

[0022] 1. Meter body; 2. Interface; 3. Circular groove; 4. First groove; 5. Second groove; 6. Threaded hole; 7. First arc-shaped block; 8. Card block; 9. First convex block; 10. First slot; 11. Second arc-shaped block; 12. Second convex block; 13. Side groove; 14. Second slot; 15. Abutting groove; 16. Card slot; 17. Side block; 18. Circular block; 19. Connecting block; 20. Through hole; 21. Screw rod; 22. End block; 23. Spring. Detailed implementation manners

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1:

[0025] The present utility model provides a technical solution. Please refer to Figures 1-4 :

[0026] A guide rail type electric energy meter with a load protection function includes a meter body 1 and an interface 2. At the interface 2, a wire is electrically connected to the meter body 1 through a bolt. A circular groove 3 is formed on the meter body 1, and an arc-shaped block 7 and an arc-shaped block 11 are attached to the circular groove 3. A first slot 10 and a second slot 14 that fit the outer wall of the wire are respectively formed on the arc-shaped block 7 and the arc-shaped block 11. A clamping block 8 is fixed on the arc-shaped block 7, and a clamping slot 16 adapted to the clamping block 8 is formed on the arc-shaped block 11. A limiting member for limiting the arc-shaped block 7 and the arc-shaped block 11 is provided on the meter body 1.

[0027] A first groove 4 and a second groove 5 are formed at the circular groove 3, and a first convex block 9 and a second convex block 12 adapted to the first groove 4 and the second groove 5 are respectively fixed on the arc-shaped block 7 and the arc-shaped block 11. Elastic pads are provided on the parts of the arc-shaped block 7 and the arc-shaped block 11 in contact with the circular groove 3.

[0028] After the first convex block 9 and the second convex block 12 respectively extend into the first groove 4 and the second groove 5, the positioning effect on the arc-shaped block 7 and the arc-shaped block 11 can be achieved.

[0029] Embodiment 2:

[0030] Basically the same as the technical solution of Embodiment 1, the difference is that, as Figure 1 and Figure 3As shown in the figure, the limiting member includes a side groove 13 and a resisting groove 15 formed in the arc-shaped block two 11. A round block 18 is engaged in the resisting groove 15. The side groove 13 abuts against the side block 17. When the side block 17 fits with the side groove 13, the outer wall of the side block 17 is flush with the outer wall of the arc-shaped block two 11. A connecting block 19 is fixed on the side block 17. A through hole 20 is formed in the connecting block 19. A screw hole 6 adapted to the through hole 20 is formed in the table body 1. A screw rod 21 passes through the through hole 20, and the screw rod 21 is threadedly connected with the screw hole 6. An end block 22 is fixed at the end of the screw rod 21. A spring 23 is sleeved on the screw rod 21. One end of the spring 23 abuts against the end block 22, and the other end abuts against the connecting block 19. Under the action of the screw rod 21, the position of the connecting block 19 can be fixed, thereby fixing the arc-shaped block two 11, and making the positions of the arc-shaped block one 7 and the arc-shaped block two 11 fixed.

[0031] In summary, after the table body 1, the neutral wire and the live wire are connected at the interface 2 in the present embodiment, the arc-shaped block one 7 is inserted into the circular groove 3, and the convex block one 9 is inserted into the groove one 4. Then the arc-shaped block two 11 is inserted into the circular groove 3, and the convex block two 12 is inserted into the groove two 5. At this time, under the cooperation of the arc-shaped block one 7 and the arc-shaped block two 11, the wire is clamped by the slot one 10 and the slot two 14, so that the wire core of the wire is shielded and protected.

[0032] Fit the round block 18 with the side groove 13, and the round block 18 extends into the resisting groove 15. Then the screw rod 21 can be passed through the through hole 20 and threadedly connected with the screw hole 6. After the connecting block 19 fits with the table body 1 under the action of the screw rod 21, the round block 18 fixes the arc-shaped block two 11 and the table body 1. Therefore, the arc-shaped block one 7 and the arc-shaped block two 11 shield and protect the exposed wire core part of the wire, effectively preventing the leakage of electricity.

[0033] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A guide rail type electric energy meter with load protection function, comprising a meter body (1) and an interface (2), characterized in that: The interface (2) is electrically connected to the electric wire and the meter body (1) by means of bolts. The meter body (1) is provided with a circular groove (3), and an arc block (7) and an arc block (11) are fitted on the circular groove (3). The arc block (7) and the arc block (11) are respectively provided with a groove (10) and a groove (14) fitted with the outer wall of the electric wire. A clamping block (8) is fixed on the arc block (7), and a clamping groove (16) matched with the clamping block (8) is provided on the arc block (11). The meter body (1) is provided with a limiting member for limiting the arc block (7) and the arc block (11).

2. A guide rail type electric energy meter with load protection function according to claim 1, characterized in that: The limiting member comprises a side groove (13) and abutting groove (15) formed on the arc block 2 (11), and a round block (18) is engaged in the butting groove (15), the side groove (13) is in abutment with the side block (17), a connecting block (19) is fixed on the side block (17), a through hole (20) is formed on the connecting block (19), and a screw hole (6) matched with the through hole (20) is formed on the surface body (1), a screw rod (21) passes through the through hole (20), and the screw rod (21) is connected to the screw hole (6) by a thread, and an end block (22) is fixed to the end of the screw rod (21).

3. The guide rail type electric energy meter with load protection function according to claim 2, characterized in that: A spring (23) is sleeved on the screw rod (21), and one end of the spring (23) abuts against the end block (22), and the other end abuts against the connecting block (19).

4. The guide rail type electric energy meter with load protection function according to claim 1, characterized in that: The circular groove (3) is provided with a groove 1 (4) and a groove 2 (5), and the arc block 1 (7) and the arc block 2 (11) are respectively fixed with a convex block 1 (9) and a convex block 2 (12) which are matched with the groove 1 (4) and the groove 2 (5).

5. The guide rail type electric energy meter with load protection function according to claim 1, characterized in that: Elastic pads are provided on the portions where the arc-shaped block 1 (7) and the arc-shaped block 2 (11) abut against the circular groove (3).

6. The guide rail type electric energy meter with load protection function according to claim 2, characterized in that: When the side block (17) is fitted with the side groove (13), the outer wall of the side block (17) is flush with the outer wall of the second arc block (11).

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