A plug-in type energy meter

Abstract

This application relates to a plug-in type electricity meter, belonging to the field of power communication equipment technology. It includes an electricity meter body with a junction box installed inside. The junction box has several preset holes, each containing a fixed terminal block. The advantages of this application are that the solution adopts a plug-in structure for the terminal block and the connecting pipe a, combined with a snap-fit ​​design of a clip and a slot. This eliminates the need for cumbersome screw operations. During installation, the terminal block and connecting pipe a are inserted, allowing the clip to automatically spring into the slot for initial fixation. During replacement, simply pressing the clip quickly separates the two. Furthermore, the double locking mechanism further strengthens the connection stability between the terminal block and connecting pipe a. This design significantly shortens the installation and replacement time of the electricity meter body, and in large-scale power grid renovations or centralized meter installation scenarios, it can significantly reduce labor costs and improve overall construction efficiency.

Description

Technical Field

[0001] This application relates to the field of power communication equipment technology, and in particular to a plug-in type energy meter. Background Technology

[0002] As a key device for measuring electricity consumption, the electricity meter plays an irreplaceable role in the power system. It is a device that must be connected in series in the circuit of every electricity user. Its metering accuracy and ease of installation directly affect the efficiency of power supply and user experience. Currently, the connection between the electricity meter and the external line is mainly achieved through the terminal block of the terminal block. The specific installation process is as follows: after inserting the external wire into the preset hole of the terminal block, the wire needs to be fixed by tightening with double screws to ensure that the wire and the terminal block form sufficient electrical contact. Although this traditional wiring method can meet the basic conductivity requirements, it has significant drawbacks in actual installation and later replacement of electricity meters. During the installation phase, operators need to tighten the double screws on each terminal one by one. This requires not only precise alignment to avoid poor contact, but also control of the tightening force to prevent damage to the wires. As a result, the installation of a single electricity meter often takes a lot of time. When the electricity meter malfunctions or reaches the end of its service life and needs to be replaced, the double screws must be loosened one by one to remove the old meter, and then the tightening operation must be repeated to install the new meter, which further increases labor costs. Utility Model Content

[0003] In view of the above-mentioned problems existing in the prior art, the main objective of this application is to provide a plug-in type energy meter.

[0004] The technical solution of this application is as follows: a plug-in type electricity meter includes an electricity meter body, a junction box is installed inside the electricity meter body, a plurality of preset holes are opened inside the junction box, and a terminal is fixedly installed inside each preset hole. A wiring tube a is adapted to the end of the terminal away from the electricity meter body. A plurality of clips are fixedly connected to the outside of the terminal. The clips are elastic members and the plurality of clips are arranged at equal intervals. A groove that cooperates with the clips is opened inside the wiring tube a. A fixing ring is fixedly connected to the outside of the terminal. A double locking component is provided on the outside of the fixing ring.

[0005] By adopting the above technical solution, the terminal block is inserted into the terminal block a, and the clip automatically pops into the slot to complete the initial fixation, thereby shortening the installation and replacement time of the electricity meter body and improving the overall construction efficiency in large-scale power transformation or centralized meter installation scenarios.

[0006] In a preferred embodiment, the double locking assembly includes two support blocks that are equidistantly fixed to the outside of the fixing ring. The two support blocks are rotatably connected to a rotating rod. A buckle is fixedly connected to the outside of the rotating rod, and a torsion spring is sleeved on both sides of the rotating rod.

[0007] By adopting the above technical solution, the buckle is driven into the contact groove by the rotating rod on the support block, and the torsion spring continuously applies elastic force to keep the buckle locked, effectively preventing the terminal and the connector a from accidentally falling off.

[0008] In a preferred embodiment, one end of the torsion spring is fixed to the support block, and the other end of the torsion spring is connected to the buckle. The inside of the wiring tube a is provided with an abutment groove that cooperates with the buckle, and the abutment groove engages with the corresponding slot.

[0009] By adopting the above technical solution, the normal use of torsion springs can be ensured.

[0010] In a preferred embodiment, an external wire is fixedly connected to the end of the connector a away from the terminal block, and pull rings are fixedly connected to the outer side of each buckle.

[0011] By adopting the above technical solution and using the pull ring, it is easy to quickly control the locking and unlocking of the buckle, reducing the difficulty of operation.

[0012] In a preferred embodiment, a sealing ring is fixedly connected to one end of the terminal block near the terminal tube a, and a sealing groove that cooperates with the sealing ring is opened inside the terminal tube a.

[0013] By adopting the above technical solution, the sealing ring and the sealing groove work together to achieve sealing protection at the interface, preventing dust and moisture from entering and affecting the conductivity.

[0014] In a preferred embodiment, a protective cover is provided inside the electricity meter body and above the junction box, and the junction box is secured inside the electricity meter body by the protective cover.

[0015] By adopting the above technical solution and setting up the protective cover, the internal components can be protected.

[0016] In one preferred embodiment, a number of locking bolts are inserted inside the protective cover, and the protective cover is connected to the electricity meter body through the locking bolts.

[0017] By adopting the above technical solution and using the locking bolts, the junction box can be easily disassembled and maintained.

[0018] Compared with the prior art, the advantages and positive effects of this application are as follows: 1. In this application, during installation, the terminal block is inserted into the conduit a, and the clip automatically pops into the slot to complete the initial fixation; during replacement, simply press the clip to quickly separate the two, and under the action of the double locking component, the connection between the terminal block and the conduit a can be further strengthened. This design greatly shortens the installation and replacement time of the electricity meter body, and in large-scale power transformation or centralized meter installation scenarios, it can significantly reduce labor costs and improve overall construction efficiency.

[0019] 2. In this application, the buckle is driven into the contact groove by the rotating rod on the support block, and the torsion spring continuously applies elastic force to keep the buckle locked, which effectively prevents the terminal and the wiring tube a from falling off accidentally and ensures the accuracy of power metering. Attached Figure Description

[0020] Figure 1 This application provides an overall perspective view of a plug-in type energy meter; Figure 2 This application provides an exploded view of a plug-in type energy meter; Figure 3 This application provides a schematic diagram of the terminal block and wiring tube a of a plug-in type energy meter; Figure 4 This application provides a schematic diagram of the wiring pipe a structure of a pluggable energy meter; Figure 5 This application provides a plug-in type energy meter. Figure 3 Enlarged view of point A in the middle.

[0021] Legend: 1. Electricity meter body; 2. Protective cover; 3. Locking bolt; 4. Junction box; 5. Terminal post; 6. Pre-set hole; 7. Wiring pipe a; 8. External wire; 9. Fixing ring; 10. Slot; 11. Contact groove; 12. Sealing ring; 13. Sealing groove; 14. Support block; 15. Torsion spring; 16. Buckle; 17. Rotating rod; 18. Clip. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] Reference Figure 1-5A plug-in type electricity meter includes an electricity meter body 1, a junction box 4 installed inside the electricity meter body 1, a plurality of preset holes 6 inside the junction box 4, and a terminal block 5 fixedly installed inside each preset hole 6. A wiring conduit a7 is adapted to the end of the terminal block 5 away from the electricity meter body 1. A plurality of clips 18 are fixedly connected to the outside of the terminal block 5. The clips 18 are elastic members and are arranged at equal intervals. A groove 10 is provided inside the wiring conduit a7 to cooperate with the clips 18. A fixing ring 9 is fixedly connected to the outside of the terminal block 5. A double locking assembly is provided on the outside of the fixing ring 9. The design employs a plug-in structure for the terminal block 5 and the connecting pipe a7, along with a snap-fit ​​design for the clip 18 and the slot 10. This eliminates the need for cumbersome screw operations. During installation, the terminal block 5 and the connecting pipe a7 are inserted, allowing the clip 18 to automatically spring into the slot 10 for initial fixation. During replacement, simply press the clip 18 to quickly separate the two. Furthermore, the double locking components further enhance the stability of the connection between the terminal block 5 and the connecting pipe a7. This design significantly shortens the installation and replacement time of the electricity meter body 1. In large-scale power grid renovations or centralized meter installation scenarios, it can significantly reduce labor costs and improve overall construction efficiency.

[0024] Specifically, the double locking assembly includes two support blocks 14 equidistantly fixed to the outside of the fixed ring 9. The two support blocks 14 are rotatably connected to a rotating rod 17. A buckle 16 is fixedly connected to the outside of the rotating rod 17. A torsion spring 15 is sleeved on both sides of the rotating rod 17. The rotating rod 17 on the support block 14 drives the buckle 16 to engage with the contact groove 11. The torsion spring 15 continuously applies elastic force to keep the buckle 16 locked, effectively preventing the terminal 5 and the wiring tube a7 from accidentally falling off, ensuring the accuracy of power metering. One end of the torsion spring 15 is fixed to the support block 14, and the other end of the torsion spring 15 is connected to the buckle 16. The wiring tube a7 has an contact groove 11 that cooperates with the buckle 16. The contact groove 11 engages with the corresponding slot 10. An external wire 8 is fixedly connected to the end of the wiring tube a7 away from the terminal 5. Pull rings are fixedly connected to the outside of the buckle 16. The pull ring design facilitates quick operation of locking and unlocking the buckle 16, reducing the difficulty of operation.

[0025] Specifically, a sealing ring 12 is fixedly connected to one end of the terminal 5 near the terminal a7. A sealing groove 13 is provided inside the terminal a7 to cooperate with the sealing ring 12. The cooperation between the sealing ring 12 and the sealing groove 13 can achieve sealing protection at the interface, preventing dust and moisture from entering and affecting the conductivity. A protective cover 2 is provided inside the electricity meter body 1 and above the junction box 4. The junction box 4 is secured inside the electricity meter body 1 by the protective cover 2. Several locking bolts 3 are inserted inside the protective cover 2. The junction box 4 is secured inside the electricity meter body 1 by the protective cover 2 and then fixed by the locking bolts 3. This facilitates the disassembly and maintenance of the junction box 4 and also protects the internal components through the protective cover 2, improving overall safety. The protective cover 2 is connected to the electricity meter body 1 by the locking bolts 3.

[0026] Working principle: First, during installation, the terminal 5 is inserted into the conduit a7, causing the clip 18 to automatically spring into the slot 10 for initial fixation. This ensures full contact between the terminal 5 and the conduit a7, thereby ensuring a tight fit between the sealing ring 12 and the sealing groove 13. This provides a sealed protection at the interface, preventing dust and moisture from affecting conductivity. Furthermore, the rotating rod 17 on the support block 14 drives the buckle 16 into the contact groove 11, and the torsion spring 15 continuously applies elastic force to keep the buckle 16 locked, effectively preventing accidental detachment of the terminal 5 and the conduit a7, and further strengthening the connection stability between the terminal 5 and the conduit a7. During replacement, simply press the clip 18 and pull the ring to quickly separate the two. This design significantly shortens the installation and replacement time of the electricity meter body 1, improving overall construction efficiency in large-scale power transformation or centralized meter installation scenarios.

[0027] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0028] The above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A plug-in type energy meter, comprising an energy meter body (1), characterized in that: The inside of the electricity meter body (1) is equipped with a junction box (4). The junction box (4) has several preset holes (6). Each preset hole (6) is fixedly equipped with a terminal (5). The end of the terminal (5) away from the electricity meter body (1) is fitted with a connecting tube a (7). Several clips (18) are fixedly connected to the outside of the terminal (5). The clips (18) are elastic members. The clips (18) are arranged at equal intervals. The inside of the connecting tube a (7) is provided with a slot (10) that cooperates with the clips (18). A fixing ring (9) is fixedly connected to the outside of the terminal (5). A double locking assembly is provided on the outside of the fixing ring (9).

2. A plug-in type energy meter according to claim 1, characterized in that: The double locking assembly includes two support blocks (14) that are fixedly connected at equal intervals to the outside of the fixed ring (9). The two support blocks (14) are rotatably connected to a rotating rod (17). The outside of the rotating rod (17) is fixedly connected to a buckle (16). Both sides of the rotating rod (17) are fitted with torsion springs (15).

3. A plug-in type energy meter according to claim 2, characterized in that: One end of the torsion spring (15) is fixed to the support block (14), and the other end of the torsion spring (15) is connected to the buckle (16). The inside of the wiring tube a (7) is provided with an abutment groove (11) that cooperates with the buckle (16). The abutment groove (11) is engaged with the corresponding slot (10).

4. A plug-in type energy meter according to claim 2, characterized in that: An external wire (8) is fixedly connected to one end of the connector a (7) away from the terminal block (5), and a pull ring is fixedly connected to the outside of the buckle (16).

5. A plug-in type energy meter according to claim 1, characterized in that: A sealing ring (12) is fixedly connected to one end of the terminal block (5) near the terminal pipe a (7), and a sealing groove (13) is provided inside the terminal pipe a (7) to cooperate with the sealing ring (12).

6. A plug-in type energy meter according to claim 1, characterized in that: A protective cover (2) is provided inside the main body (1) of the electricity meter and above the junction box (4). The junction box (4) is secured inside the main body (1) of the electricity meter by the protective cover (2).

7. A plug-in type energy meter according to claim 6, characterized in that: The protective cover (2) has several locking bolts (3) inserted inside, and the protective cover (2) is connected to the power meter body (1) through the locking bolts (3).

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