Three-phase voltage and current acquisition equipment

Abstract

The utility model discloses a three-phase voltage and current acquisition device, and relates to the technical field of three-phase multifunctional electric energy meters. Comprising a sliding rail and a meter body installed on the sliding rail, the sliding rail is integrally in a U shape, a groove capable of being clamped on the sliding rail is formed in the meter body, a fixing block capable of stretching into the sliding rail is fixedly connected to one side of the meter body, a vertically-arranged guide groove is formed in the fixing block, and a limiting rod capable of stretching out of the guide groove is connected into the guide groove through a telescopic spring. According to the three-phase voltage and current acquisition equipment, after the groove of the meter body is clamped on the sliding rail, the meter body can conveniently move along the sliding rail to adjust the position of the meter body, the fixing block on the side face of the meter body extends into the inner cavity of the sliding rail, and the limiting rod is driven to abut against the inner wall of the sliding rail, so that the meter body is prevented from moving along the sliding rail. And resistance can be generated for movement of the meter body along the sliding rail, so that the meter body can be kept stable in position.

Description

Technical Field

[0001] The utility model relates to the technical field of three-phase multifunctional electric energy meters, in particular to a three-phase voltage and current acquisition device. Background Art

[0002] The three-phase multifunctional watt-hour meter is designed for the power monitoring needs of power systems, industrial and mining enterprises, public facilities, and intelligent buildings. It can measure all common power parameters, such as three-phase current, voltage, active and reactive power, electricity, harmonics, etc. It has a high performance-price ratio and can directly replace conventional power transmitters and measuring instruments. Since the power meter also has a complete communication and networking function, it is very suitable for real-time power monitoring systems.

[0003] The rail-type three-phase multifunctional energy meter is a common three-phase multifunctional energy meter. However, most of the existing rail-type three-item multifunctional energy meters use buckles to fix the energy meter on the rail. Once the buckle is closed, it is often inconvenient to open. If the energy meter fails and needs maintenance, time is often wasted due to the inconvenience of opening the buckle. Utility Model Content

[0004] The utility model provides a three-phase voltage and current acquisition device to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a three-phase voltage and current acquisition device, comprising a slide rail and a meter body installed on the slide rail, the slide rail is U-shaped as a whole, the meter body is provided with a groove that can be clamped on the slide rail, one side of the meter body is fixedly connected with a fixed block that can extend into the slide rail, the fixed block is provided with a vertically arranged guide groove, the guide groove is connected with a limit rod that can extend to the outside of the guide groove through a telescopic spring, the limit rod can squeeze the inner wall of the slide rail to limit the meter body from extending the slide rail to move, and the fixed block is provided with a movable rod that resists the movement of the limit rod through an operating mechanism.

[0006] Furthermore, a movable groove connected to the guide groove is provided inside the fixed block, the movable groove is connected to the movable rod via a reset spring, a through hole passed by the movable rod is provided on the limiting rod, the inner wall of the through hole on the side away from the telescopic spring is inclined, and the movable rod is provided with an inclined groove matching the inclined inner wall of the through hole, and the movable rod contacts the inclined inner wall of the through hole through the inclined groove to drive the limiting rod to move.

[0007] Furthermore, the operating mechanism is an operating screw that is threadedly connected to the fixed block, and one end of the operating screw extends into the inner cavity of the movable groove and is connected to the movable rod.

[0008] Furthermore, a downwardly extending stop edge is fixedly connected to the top inner wall of the slide rail.

[0009] Furthermore, the slide rail is evenly provided with strip-shaped holes.

[0010] Furthermore, a mounting ear block is fixedly connected to the top of the fixing block, and the mounting ear block is connected to the meter body via screws.

[0011] Compared with the prior art, the utility model provides a three-phase voltage and current acquisition device, which has the following beneficial effects: after the groove of the meter body is stuck on the slide rail, the three-phase voltage and current acquisition device facilitates the movement of the meter body along the slide rail to adjust the position of the meter body, and the fixed block on the side of the meter body extends into the inner cavity of the slide rail, and by driving the limit rod to contact the inner wall of the slide rail, it can generate resistance to the movement of the meter body along the slide rail, so that the meter body can maintain a stable position, and the setting of the stop edge and the limit rod can prevent the fixed block from detaching from the inner cavity of the slide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the slide rail of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the meter body of the utility model;

[0015] Figure 4 It is a schematic diagram of the internal structure of the fixing block of the utility model.

[0016] In the figure: 1. slide rail; 2. meter body; 3. groove; 4. fixed block; 5. guide groove; 6. limit rod; 7. telescopic spring; 8. movable groove; 9. reset spring; 10. movable rod; 11. through hole; 12. operating screw; 13. inclined groove; 14. stop edge; 15. strip hole; 16. mounting ear block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4The utility model discloses a three-phase voltage and current acquisition device, including a slide rail 1 and a meter body 2 installed on the slide rail 1, the slide rail 1 is U-shaped as a whole, the meter body 2 is provided with a groove 3 that can be stuck on the slide rail 1, one side of the meter body 2 is fixedly connected with a fixed block 4 that can extend into the slide rail 1, the fixed block 4 is provided with a vertically arranged guide groove 5, the guide groove 5 is connected with a limit rod 6 that can extend to the outside of the guide groove 5 through a telescopic spring 7, the limit rod 6 can squeeze the inner wall of the slide rail 1 to limit the meter body 2 from extending the slide rail 1 to move, and the fixed block 4 is driven by an operating mechanism to have a movable rod 10 that resists the movement of the limit rod 6.

[0019] Specifically, a movable groove 8 connected to the guide groove 5 is provided inside the fixed block 4, and the movable rod 10 is connected to the movable groove 8 via a reset spring 9. A through hole 11 passed by the movable rod 10 is provided on the limiting rod 6, and the inner wall of the through hole 11 is inclined away from the telescopic spring 7. The movable rod 10 is provided with an inclined groove 13 that matches the inclined inner wall of the through hole 11. The movable rod 10 contacts the inclined inner wall of the through hole 11 through the inclined groove 13 to drive the limiting rod 6 to move.

[0020] In this embodiment, the top end of the guide groove 5 is open, and the limiting rod 6 can move upward to pass through the guide groove 5 and abut against the top inner wall of the slide rail 1 .

[0021] When the movable rod 10 compresses the return spring 9 , the inner wall of the inclined slot 13 can contact the inclined inner wall of the through hole 11 , so that the limiting rod 6 moves upward along the guide slot 5 to contact the top inner wall of the slide rail 1 .

[0022] Specifically, the operating mechanism is an operating screw 12 threadedly connected to the fixing block 4 , and one end of the operating screw 12 extends into the inner cavity of the movable groove 8 and is connected to the movable rod 10 .

[0023] In this embodiment, the rotation of the operating screw 12 can drive the movable rod 10 to move along the movable groove 8 , so as to drive the limiting rod 6 to move along the guide groove 5 .

[0024] Specifically, a stop edge 14 extending downward is fixedly connected to the top inner wall of the slide rail 1 .

[0025] In this embodiment, when the end of the limit rod 6 passes through the guide groove 5 and extends into the inner cavity of the slide rail 1, the blocking edge 14 can block the limit rod 6 to prevent the fixed block 4 from moving away from the inner cavity of the slide rail 1 and detaching from the slide rail 1, so that the watch body 2 can be firmly installed on the slide rail 1.

[0026] Specifically, the slide rail 1 is evenly provided with strip-shaped holes 15 .

[0027] In this embodiment, the provision of the strip-shaped holes 15 facilitates the installation of the slide rail 1 by means of mounting parts such as bolts.

[0028] Specifically, a mounting ear block 16 is fixedly connected to the top of the fixing block 4 , and the mounting ear block 16 is connected to the meter body 2 via screws.

[0029] To sum up, after the groove 3 of the meter body 2 is stuck on the slide rail 1, the three-phase voltage and current acquisition device facilitates the movement of the meter body 2 along the slide rail 1 to adjust the position of the meter body 2, and the fixed block 4 on the side of the meter body 2 extends into the inner cavity of the slide rail 1, and by driving the limit rod 6 to contact the inner wall of the slide rail 1, it can generate resistance to the movement of the meter body 2 along the slide rail 1, so that the meter body 2 can maintain a stable position, and the blocking edge 14 cooperates with the setting of the limit rod 6 to prevent the fixed block 4 from escaping from the inner cavity of the slide rail 1.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-phase voltage and current acquisition device, comprising a slide rail (1) and a meter body (2) mounted on the slide rail (1), characterized in that: The slide rail (1) is generally U-shaped. The watch body (2) is provided with a groove (3) that can be clamped on the slide rail (1). A fixed block (4) that can extend into the slide rail (1) is fixedly connected to one side of the watch body (2). The fixed block (4) is provided with a vertically arranged guide groove (5). A limit rod (6) that can extend to the outside of the guide groove (5) is connected to the guide groove (5) through a telescopic spring (7). The limit rod (6) can squeeze the inner wall of the slide rail (1) to limit the movement of the watch body (2) extending the slide rail (1). The fixed block (4) is driven by an operating mechanism to have a movable rod (10) that resists the movement of the limit rod (6).

2. A three-phase voltage and current acquisition device according to claim 1, characterized in that: The fixed block (4) is provided with a movable groove (8) in communication with the guide groove (5); the movable rod (10) is connected to the movable groove (8) via a reset spring (9); the limiting rod (6) is provided with a through hole (11) through which the movable rod (10) passes; the inner wall of the through hole (11) is inclined away from the telescopic spring (7); the movable rod (10) is provided with an inclined groove (13) matched with the inclined inner wall of the through hole (11); the movable rod (10) contacts the inclined inner wall of the through hole (11) via the inclined groove (13) to drive the limiting rod (6) to move.

3. A three-phase voltage and current acquisition device according to claim 2, characterized in that: The operating mechanism is an operating screw rod (12) threadedly connected to the fixed block (4), one end of the operating screw rod (12) extends into the inner cavity of the movable groove (8) and is connected to the movable rod (10).

4. A three-phase voltage and current acquisition device according to claim 1, characterized in that: A downwardly extending stop edge (14) is fixedly connected to the top inner wall of the slide rail (1).

5. The three-phase voltage and current acquisition device according to claim 1, characterized in that: The slide rail (1) is evenly provided with strip-shaped holes (15).

6. A three-phase voltage and current acquisition device according to claim 1, characterized in that: A mounting ear block (16) is fixedly connected to the top of the fixing block (4), and the mounting ear block (16) is connected to the meter body (2) via screws.

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