Guide rail type electric energy meter

Abstract

The utility model discloses a guide rail type electric energy meter with a more stable flip cover structure. According to the technical scheme, the wiring terminal comprises a base, an upper cover installed at the upper end of the base, a circuit board installed in the base and flip covers arranged at the two ends of the upper cover, a set of symmetrical wiring ports are formed in the two ends of the base, a wiring terminal assembly is arranged in each wiring port, and the flip covers are arranged at the two ends of the base. The turning cover is in shaft connection with the upper cover through a rotating shaft with the two ends integrally formed, positioning bosses are integrally formed at the two ends of the upper cover, the rotating shaft of the turning cover is in shaft connection with shaft holes in the two sides of the positioning bosses of the upper cover, positioning steps are arranged on the positioning bosses, and a positioning edge matched with the positioning steps in a positioning mode is arranged at the front end of the turning cover.

Description

Technical Field

[0001] The utility model belongs to the field of electricity, and in particular relates to a guide rail type electric energy meter. Background Art

[0002] The guide rail type electric energy meter is an intelligent electric power meter that integrates electric energy metering, measurement and data communication. It is mainly used in the fields of industry, construction, commerce and public utilities, and accurately measures and controls various parameters in the electrical system to achieve electric energy metering and quality analysis. The structure of the traditional guide rail type electric energy meter includes: a base, an upper cover installed on the upper end of the base and a circuit board installed in the base. The two ends of the base are provided with a symmetrical set of wiring ports, each wiring port is provided with a wiring terminal assembly, and the wiring terminal assemblies are connected with a live wire and a neutral wire. A current transformer is provided on each live wire, and a flap is provided at both ends of the upper cover. The disadvantage is that the traditional flap is positioned by the positioning pit on one side of the rotating shaft and the positioning convex point on the side of the upper cover to achieve locking of the flap after closing, but because the structure is very close to the rotating shaft side, the positioning ability is poor and it is easy to open accidentally, and the stability of the flap is poor because it is connected only by the rotating shaft and the positioning structure. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a guide rail type electric energy meter with a more stable flip cover structure.

[0004] In order to solve the above problems, the technical solution adopted by the utility model includes: a base, an upper cover installed on the upper end of the base, a circuit board installed in the base and a flip cover arranged at both ends of the upper cover, a group of symmetrical wiring ports are arranged at the two ends of the base, each of the wiring ports is provided with a wiring terminal assembly, the flip cover is connected to the upper cover through a rotating shaft integrally formed at both ends, and is characterized in that: positioning bosses are integrally formed at both ends of the upper cover, the rotating shaft of the flip cover is connected to the shaft holes on both sides of the positioning boss of the upper cover, a positioning step is provided on the positioning boss, and a positioning edge is provided at the front end of the flip cover for positioning and cooperating with the positioning step.

[0005] The rail-type electric energy meter is characterized in that a first positioning rib is provided beside the positioning boss corresponding to the shaft hole.

[0006] The rail-type electric energy meter is characterized in that a buckle is provided at the end of the upper cover, and a second positioning rib connected to the buckle is provided inside the flip cover.

[0007] The rail-type electric energy meter is characterized in that: the circuit board is connected to the mounting posts on the base by inserting screws into the ear holes at both ends of the circuit board, the upper cover is provided with screw holes corresponding to the screw positions, and the screw holes are provided with lead sealing caps.

[0008] The rail-type electric energy meter is characterized in that a supporting surface in contact with the inner wall of the flip cover is provided on one side of the screw hole.

[0009] The rail-type electric energy meter is characterized in that a positioning portion is provided on one side of the screw hole, a lead seal hole is provided on the top of the positioning portion, and a third positioning convex rib that cooperates with the positioning portion and a lead seal guide groove that cooperates with the lead seal hole are provided on the flip cover.

[0010] The rail-type electric energy meter is characterized in that a positioning column is provided on one side of the mounting column, and a positioning hole cooperating with the positioning column is provided on the circuit board.

[0011] The rail-type electric energy meter is characterized in that a U-shaped groove is provided beside the flip cover corresponding to the rotating shaft.

[0012] The rail-type electric energy meter is characterized in that an inclined surface is provided at the front end of the rotating shaft.

[0013] The utility model has the advantages that the flip cover is positioned by a combination of a positioning boss and a positioning rib, which can greatly improve the stability of the flip cover and prevent accidental opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Figure 1 It is a structural schematic diagram of the rail-type electric energy meter of the utility model;

[0016] Figure 2 It is an exploded view of the rail-type electric energy meter of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the utility model flip cover;

[0018] Figure 4 It is a structural schematic diagram of the upper cover of the utility model;

[0019] Figure 5 It is a cross-sectional view of the guide rail type electric energy meter of the utility model. DETAILED DESCRIPTION

[0020] like Figures 1 to 5As shown, the rail-type electric energy meter of the utility model comprises a base 1, an upper cover 2 installed on the upper end of the base 1, a circuit board 3 installed in the base 1, and a flip cover 4 provided at both ends of the upper cover 2. Four symmetrical wiring ports 5 are provided at the two ends of the base 1, and each of the wiring ports 5 is provided with a wiring terminal assembly 6, and the wiring terminal assembly 6 is composed of a wiring frame and a screw. The flip cover 4 is axially connected to the upper cover 2 through a rotating shaft 7 integrally formed at both ends. Positioning bosses 8 are integrally formed at both ends of the upper cover 2, and the rotating shaft 7 of the flip cover 4 is axially connected to the shaft holes 9 on both sides of the positioning boss 8 of the upper cover 2. A positioning step 10 is provided on the positioning boss 8, and a positioning edge 11 is provided at the front end of the flip cover 4 to cooperate with the positioning step 10. When the flip cover 4 is closed, the positioning edge 11 is installed in the positioning step 10 to cooperate with it.

[0021] Preferably, the positioning boss 8 is provided with a first positioning rib 12 next to the corresponding shaft hole 9. A buckle 14 is provided at the end of the upper cover 2, and a second positioning rib 15 connected to the buckle 14 is provided inside the flip cover 4. When the flip cover 4 is closed, the second positioning rib 15 is connected to the side of the buckle 14 to form a friction force, and the first positioning rib 12 is connected to the inner wall of the flip cover 4 to form a friction force, so as to fix the flip cover 4.

[0022] Preferably, the circuit board 3 is connected to the mounting posts 18 on the base 1 by inserting screws 17 into the ear holes 16 at both ends thereof, and the upper cover 2 is provided with screw holes 19 at positions corresponding to the screws 17, and a lead seal cap 20 is provided in the screw holes 19. Through the above structure, the circuit board 3 can be installed while being prevented from being opened by unauthorized personnel, thereby playing a role in preventing electricity theft.

[0023] Preferably, a support surface 21 in contact with the inner wall of the flip cover 4 is provided on one side of the screw hole 19. When the flip cover 4 is closed, the support surface 21 is supported on the inner wall of the flip cover 4 to improve the stability of the flip cover 4.

[0024] Preferably, a positioning portion 22 is provided on one side of the screw hole 19, a lead-sealing hole 23 is provided on the top of the positioning portion 22, and a third positioning convex rib 24 for positioning and cooperating with the positioning portion 22 and a lead-sealing guide groove 25 for cooperating with the lead-sealing hole 23 are provided on the flip cover 4. Through the above structure, the flip cover 4 can be lead-sealed and stabilized at the same time.

[0025] Preferably, a positioning column 26 is provided on one side of the mounting column 18, and a positioning hole 27 cooperating with the positioning column is provided on the circuit board 3. Through the above structure, the stability of the installation of the circuit board 3 is improved.

[0026] Preferably, the flip cover 4 is provided with a U-shaped groove 28 next to the shaft 7, so that the shaft 7 has elasticity, so that it is easier to be installed in the shaft hole 9. The front end of the shaft 7 is provided with an inclined surface 29, which serves to guide the shaft 7 to be installed in the shaft hole 9.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A guide rail type electric energy meter, comprising a base (1), an upper cover (2) mounted on the upper end of the base (1), a circuit board (3) mounted in the base (1), and flip covers (4) arranged at both ends of the upper cover (2), a group of symmetrical wiring ports (5) being arranged at the two ends of the base (1), each wiring port (5) being provided with a wiring terminal assembly (6), the flip cover (4) being axially connected to the upper cover (2) via rotating shafts (7) integrally formed at both ends, and characterized in that: Positioning bosses (8) are integrally formed at both ends of the upper cover (2); the rotating shaft (7) of the flip cover (4) is axially connected to the shaft holes (9) on both sides of the positioning bosses (8) of the upper cover (2); a positioning step (10) is provided on the positioning boss (8); and a positioning edge (11) is provided at the front end of the flip cover (4) for positioning with the positioning step (10).

2. The guide rail type electric energy meter according to claim 1, characterized in that: The positioning boss (8) is provided with a first positioning rib (12) next to the shaft hole (9) corresponding to the shaft hole (9).

3. The guide rail type electric energy meter according to claim 1, characterized in that: A buckle (14) is provided at the end of the upper cover (2), and a second positioning rib (15) connected to the buckle (14) is provided inside the flip cover (4).

4. The guide rail type electric energy meter according to claim 1, characterized in that: The circuit board (3) is connected to the mounting posts (18) on the base (1) by inserting screws (17) into the ear holes (16) at both ends of the circuit board (3). The upper cover (2) is provided with screw holes (19) at positions corresponding to the screws (17). A lead sealing cap (20) is provided in the screw holes (19).

5. The guide rail type electric energy meter according to claim 4, characterized in that: A support surface (21) that contacts the inner wall of the flip cover (4) is provided on one side of the screw hole (19).

6. The guide rail type electric energy meter according to claim 4, characterized in that: A positioning portion (22) is provided on one side of the screw hole (19), a lead seal hole (23) is provided on the top of the positioning portion (22), and a third positioning convex rib (24) that cooperates with the positioning portion (22) and a lead seal guide groove (25) that cooperates with the lead seal hole (23) are provided on the flip cover (4).

7. The guide rail type electric energy meter according to claim 4, characterized in that: A positioning column (26) is provided on one side of the installation column (18), and a positioning hole (27) cooperating with the positioning column is provided on the circuit board (3).

8. The guide rail type electric energy meter according to claim 1, characterized in that: The flip cover (4) is provided with a U-shaped groove (28) next to the rotating shaft (7).

9. The guide rail type electric energy meter according to claim 1, characterized in that: The front end of the rotating shaft (7) is provided with an inclined surface (29).

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