Three-phase four-wire direct access type uninterruptible power meter replacement combined junction box

Abstract

The utility model relates to a three-phase four-wire direct access type uninterruptible power meter replacement combined junction box, which comprises an insulating box body, four pairs of wiring terminals are arranged on the insulating box body, and each pair of wiring terminals is composed of two wiring terminals fixedly arranged on the insulating box body. Wherein a movable connection conducting strip is connected between the two adjacent binding posts of each pair of wiring terminals and is used for controlling the power-on and power-off between the two adjacent binding posts of each pair of wiring terminals. Before the ammeter is replaced, the adjacent binding posts of each pair of wiring terminals are short-circuited by operating the movable connection conducting strips, so that uninterrupted user load ammeter replacement is realized.

Description

Technical Field

[0001] The utility model relates to a three-phase four-wire direct access non-stop power meter replacement combined junction box. Background Art

[0002] An electric energy meter is an instrument used to measure electric energy, also known as an electric meter, a fire meter, or a kilowatt-hour meter. Regarding the replacement of electric energy meters, power supply companies usually replace old meters regularly in order to ensure the accuracy of electric energy measurement, because electric meters that have been used for a long time may experience problems such as wear and tear and increased errors, resulting in inaccurate electric energy measurement.

[0003] In the prior art, the replacement of the electric energy meter needs to be carried out under the condition of load cut, which will affect the electricity consumption of the connected users. Utility Model Content

[0004] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a three-phase four-wire direct access non-stop meter replacement combined junction box.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a three-phase four-wire direct-access non-stop power meter replacement combined junction box, including an insulating box body, on which four pairs of wiring terminals are arranged, each pair of wiring terminals consists of two wiring posts fixed on the insulating box body, wherein a movable connecting conductive sheet is connected between two adjacent wiring posts of each pair of wiring terminals to control the power on and off between the two adjacent wiring posts of each pair of wiring terminals.

[0006] Preferably, the upper end of the terminal is a connecting cylinder for connecting to the corresponding terminal on the electric energy meter, and the lower end of the terminal is a plug-in cavity for connecting the service line and the service incoming line, and a fixing screw is threaded on the plug-in cavity.

[0007] Preferably, one end of the movable connecting conductive sheet is locked on one of the terminal posts via a locking screw, and the other end of the movable connecting conductive sheet is provided with a notch for snapping into the locking screw threaded on the other terminal post.

[0008] Preferably, the insulating box body is provided with mounting screws to facilitate locking the insulating box body on the mounting base plate of the meter box.

[0009] Preferably, an insulating box cover is provided on the front upper cover of the insulating box body.

[0010] Preferably, the insulating box cover is locked on the internal threaded hole opened on the front side of the insulating box body by a lead sealing screw.

[0011] Preferably, the front, left, right, top and bottom surfaces of the insulating box cover are all provided with sealing plates, and the back surface of the insulating box cover is open to cover the front surface of the insulating box body and the terminal posts.

[0012] Preferably, the top surface and the bottom surface of the insulating box cover are provided with clearance openings for making way for the connection of the upper and lower ends of the terminal.

[0013] Preferably, a lead sealing column is provided on the front side of the insulating box cover.

[0014] Preferably, the terminal and the insulating box body are cast as one piece.

[0015] Compared with the prior art, the utility model has the following beneficial effects: before replacing the electric meter, the adjacent terminals of each pair of terminal blocks are short-circuited by operating the movable connecting conductive sheet, thereby realizing uninterrupted user load meter replacement.

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of an embodiment of the utility model.

[0018] Figure 2 It is a front view of the insulating box body.

[0019] Figure 3 It is the front view of the insulating box cover.

[0020] Figure 4 This is a bottom view of the insulating box cover.

[0021] Figure 5 for Figure 3 AA section view.

[0022] Figure 6 It is a three-dimensional schematic diagram of the insulating box body. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0026] like Figures 1 to 6 As shown, the present embodiment provides a three-phase four-wire direct-access non-stop power meter-changing combined junction box, comprising an insulating box body 1, on which four pairs of wiring terminals 2 are arranged, each pair of wiring terminals consisting of two wiring posts 3 fixed on the insulating box body, wherein a movable connecting conductive sheet 4 is connected between two adjacent wiring posts of each pair of wiring terminals to control the power on and off between the two adjacent wiring posts of each pair of wiring terminals.

[0027] In the embodiment of the utility model, the movable connecting conductive sheet is detachable and can be customized to different thicknesses according to the required short-circuit current size.

[0028] In the embodiment of the utility model, the upper end of the terminal is a connecting cylinder 5 for connecting to the corresponding terminal on the electric energy meter, and the lower end of the terminal is a plug-in cavity 6 for connecting the service line and the service incoming line, and a fixing screw 7 is threaded on the plug-in cavity.

[0029] In the embodiment of the utility model, one end of the movable connecting conductive sheet is locked on one of the terminal posts via a locking screw 8, and the other end of the movable connecting conductive sheet is provided with a notch 9 for snapping into the locking screw threaded on the other terminal post.

[0030] In the embodiment of the utility model, the insulating box body is provided with mounting screws 15 to facilitate locking the insulating box body on the mounting bottom plate of the meter box.

[0031] In the embodiment of the utility model, the front upper cover of the insulating box body is provided with an insulating box cover 10 made of plastic insulating material.

[0032] In the embodiment of the utility model, the insulating box cover is locked on the internal thread hole 12 opened on the front side of the insulating box body through the lead sealing screw 11.

[0033] In an embodiment of the utility model, the front, left, right, top and bottom surfaces of the insulating box cover are all provided with sealing plates, and the back of the insulating box cover is open to cover the front of the insulating box body and the terminal posts to prevent electric shock and phase-to-phase short circuit.

[0034] In the embodiment of the utility model, the top surface and the bottom surface of the insulating box cover are both provided with a clearance opening 13 for the connection and clearance of the upper and lower ends of the terminal.

[0035] In the embodiment of the utility model, a lead sealing column 14 is provided on the front side of the insulating box cover.

[0036] In the embodiment of the utility model, the terminal is cast integrally with the plastic insulating box body.

[0037] In the embodiment of the present utility model, Figure 6As shown, four pairs of connection terminals are respectively located in different unit chambers 16 provided on the insulating box body.

[0038] In the embodiment of the utility model, before replacing the electric meter, the adjacent connecting posts of each pair of connecting terminals are short-circuited by operating the movable connecting conductive sheet, so as to realize the uninterrupted user load replacement of the meter.

[0039] During the specific operation, first loosen the locking screws on the adjacent terminals of each pair of terminals, swing the movable connecting conductive sheet to make the notch fit into the locking screws of the corresponding adjacent terminals, and finally tighten the locking screws of each pair of terminals to short-circuit the adjacent terminals of each pair of terminals.

[0040] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A three-phase four-wire direct access non-stop power meter replacement joint junction box, characterized in that: It comprises an insulating box body, on which four pairs of connecting terminals are arranged, each pair of connecting terminals consists of two connecting posts fixed on the insulating box body, wherein a movable connecting conductive sheet is connected between two adjacent connecting posts of each pair of connecting terminals to control the power on and off between the two adjacent connecting posts of each pair of connecting terminals.

2. The three-phase four-wire direct access non-stop power meter replacement combined junction box according to claim 1 is characterized in that: The upper end of the terminal post is a connecting cylinder for connecting to the corresponding terminal on the electric energy meter, and the lower end of the terminal post is a plug-in cavity for connecting the service line and the service incoming line, and a set screw is threaded on the plug-in cavity.

3. The three-phase four-wire direct access non-stop power meter replacement combined junction box according to claim 1 is characterized in that: One end of the movable connecting conductive sheet is locked on one of the connecting posts via a locking screw, and the other end of the movable connecting conductive sheet is provided with a notch for clamping the locking screw threaded on the other connecting post.

4. The three-phase four-wire direct access non-stop power meter replacement combined junction box according to claim 1 is characterized in that: The insulating box body is provided with mounting screws to facilitate locking the insulating box body on the mounting bottom plate of the meter box.

5. The three-phase four-wire direct access non-stop power meter replacement combined junction box according to claim 1 is characterized in that: An insulating box cover is provided on the front upper cover of the insulating box body.

6. The three-phase four-wire direct access non-stop power meter replacement combined junction box according to claim 5 is characterized in that: The insulating box cover is locked on the internal thread hole opened on the front side of the insulating box body through a lead sealing screw.

7. The three-phase four-wire direct access non-stop power meter replacement combined junction box according to claim 5 is characterized in that: The front, left, right, top and bottom surfaces of the insulating box cover are all provided with sealing plates, and the back surface of the insulating box cover is open to cover the front surface of the insulating box body and the terminal.

8. The three-phase four-wire direct access non-stop power meter replacement combined junction box according to claim 7 is characterized in that: The top surface and the bottom surface of the insulating box cover are both provided with clearance openings for connection and clearance of the upper and lower ends of the terminal posts.

9. The three-phase four-wire direct access non-stop power meter replacement combined junction box according to claim 5 is characterized in that: A lead sealing column is arranged on the front side of the insulating box cover.

10. The three-phase four-wire direct access non-stop power meter replacement combined junction box according to claim 1 is characterized in that: The terminal and the insulating box body are cast as one body.

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