Electric power meter calibration tool

Abstract

The utility model relates to an electric power meter calibration tool. The technical problem to be solved by the utility model is to provide an electric power meter calibration tool with high calibration efficiency. According to the technical scheme, the tool comprises a tool bottom plate, a first positioning plate, a second positioning plate, a tool upper plate and an insertion column assembly, wherein the tool bottom plate is provided with a first limiting block assembly, a second limiting block assembly and a front limiting block at the front end of the first positioning plate; the plugging column assembly comprises a plugging column, a reset spring and a fixing nut. The tool upper plate is provided with verification butt joint holes at intervals, wherein the verification butt joint holes are electrically connected with the plugging column and are used for the plugging of verification equipment. Compared with the prior art, the tool has the advantages that the checking speed of the electric power meter can be increased, the tool can be conveniently butted with checking equipment, the electric power meter can be accurately and reliably placed and limited, the stable and reliable contact of the electric power meter when the electric power meter is placed can be effectively ensured through the structural design of the inserting column assembly, and the tool is suitable for full checking during large-scale production of the electric power meter.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power meters, in particular to an electric power meter calibration tool. Background Art

[0002] Power meters are instruments used to measure, display and record various electrical parameters in power systems, including voltage, current, power, power factor, etc. They are usually used to monitor the operating status of power systems, help users understand power consumption, and optimize power use. Figure 6 As shown, it includes an electric meter housing 40, a meter display screen 41 is provided at the front end of the electric meter housing 40, and meter connection ports 42 for wiring are horizontally spaced at the rear end of the electric meter housing 40. Generally, after the electric meter is assembled, the meter connection ports 42 of the electric meter housing 40 need to be connected and checked by a calibration device. The traditional calibration method often adopts a manual sampling method to select a few electric meters from a batch of electric meters so that their meter connection ports 42 are connected and checked with the calibration device one by one. This method is inefficient and cannot be applied to full inspection during large-scale production, so it needs to be improved. Utility Model Content

[0003] In order to solve the above problems, the technical problem to be solved by the utility model is to provide a power meter calibration tool with high calibration efficiency.

[0004] The technical solution adopted by the utility model electric meter calibration tooling is characterized by a tooling bottom plate, a first positioning plate vertically arranged on the tooling bottom plate, a second positioning plate arranged parallel to and spaced from the first positioning plate, a tooling upper plate covering the first positioning plate and the second positioning plate, and a plug-in column assembly arranged horizontally and spaced from each other and passing through the first positioning plate and the second positioning plate; the tooling bottom plate is provided with a first limit block assembly and a second limit block assembly respectively used for limiting the left and right sides of the electric meter housing at the front end of the first positioning plate, and a front limit block used for limiting the meter display screen;

[0005] The plug-in column assembly includes a plug-in column in contact with the instrument wiring port, a return spring sleeved on the plug-in column and placed between the first positioning plate and the second positioning plate, and a fixing nut for fixing the rear end of the plug-in column. The upper plate of the tooling is provided with calibration docking holes that are electrically connected to the plug-in column and used for calibrating the device plug-in.

[0006] The plug-in column includes a plug-in column body, a plug-in column positioning boss is provided in the middle of the plug-in column body, second insertion holes for the insertion of the plug-in column are provided at intervals on the second positioning plate, and the second positioning plate is provided with a spring positioning groove at the second insertion hole. The reset spring is sleeved on the plug-in column body with one end resting on the plug-in column positioning boss, and the other end is placed in the spring positioning groove.

[0007] A conical plug connector is provided at the front end of the plug column body for easy contact with the instrument wiring port.

[0008] The plug-in post also includes a plug-in post connection part arranged at the rear end of the plug-in post body, and the plug-in post connection part is provided with a plug-in post connection groove for facilitating cable winding, and the diameter of the plug-in post connection part is smaller than the diameter of the plug-in post body.

[0009] The upper and lower ends of the second positioning plate are provided with positioning plate positioning protrusions for docking and positioning with the tooling bottom plate and the tooling upper plate.

[0010] The first limit block assembly and the second limit block assembly are provided with a detachable rubber buffer block on one side close to the power meter housing.

[0011] The front limiting block is provided with a limiting vertical surface for limiting the front end of the instrument display screen and a limiting inclined guide surface for facilitating the placement of the instrument display screen.

[0012] The advantages of the electric meter calibration tool of the utility model are: the tool can speed up the calibration of the electric meter, is convenient to connect with the calibration equipment, the placement limit of the electric meter is accurate and reliable, and the structural design of the plug-in column component can more effectively ensure the stable and reliable contact when the electric meter is placed, which is suitable for full inspection during large-scale production of electric meters. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is a structural schematic diagram of the utility model electric power meter calibration tooling;

[0015] Figure 2 It is an exploded view of the plug-in column assembly of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the plug-in column of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the second positioning plate of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the front limit block of the utility model;

[0019] Figure 6 It is a structural schematic diagram of the utility model electric power meter. DETAILED DESCRIPTION

[0020] like Figure 1-5 As shown, the utility model involves an electric meter calibration tool, a tool base plate 1, a first positioning plate 2 vertically arranged on the tool base plate 1, a second positioning plate 3 arranged parallel to the first positioning plate 2, a tool upper plate 4 covering the first positioning plate 2 and the second positioning plate 3, and a plug-in column assembly 6 horizontally arranged and passed through the first positioning plate 2 and the second positioning plate 3. The tool base plate 1 is provided with a first limit block assembly 8 and a second limit block assembly 9 for limiting the left and right sides of the electric meter housing 40 at the front end of the first positioning plate 2, and a front limit block 10 for limiting the meter display screen 41; the plug-in column The component 6 includes a plug-in column 12 in contact with the meter wiring port 42, a return spring 13 sleeved on the plug-in column 12 and placed between the first positioning plate 2 and the second positioning plate 3, and a fixing nut 14 for fixing the rear end of the plug-in column 12. The upper plate 4 of the tooling is provided with calibration docking holes 7 that are electrically connected to the plug-in column 12 and used for plugging in calibration equipment. The tooling can speed up the calibration of the power meter, facilitate docking with the calibration equipment, and accurately and reliably limit the placement of the power meter. The structural design of the plug-in column component can more effectively ensure the stable and reliable contact of the power meter when it is placed, and is suitable for full inspection during large-scale production of power meters.

[0021] The plug-in column 12 includes a plug-in column body 16, a plug-in column positioning boss 17 is provided in the middle of the plug-in column body 16, and second positioning plates 3 are provided with second through holes 19 for the plug-in column 12 to pass through. The second positioning plates 3 are provided with a spring positioning groove 20 at the second through hole 19. The reset spring 13 is sleeved on the plug-in column body 16 and one end is against the plug-in column positioning boss 17, and the other end is placed in the spring positioning groove 20. The reset spring 13 is more stably and reliably operated, and its service life is improved.

[0022] A conical plug connector 18 is provided at the front end of the plug column body 16 for easy contact with the instrument wiring port 42, thereby further improving the contact stability.

[0023] The plug-in post 12 also includes a plug-in post wiring portion 22 arranged at the rear end of the plug-in post body 16. The plug-in post wiring portion 22 is provided with a plug-in post wiring groove 23 for easy cable winding. The diameter of the plug-in post wiring portion 22 is smaller than the diameter of the plug-in post body 16, which is convenient for wiring.

[0024] The upper and lower ends of the second positioning plate 3 are provided with positioning plate positioning protrusions 25 for docking and positioning with the tooling bottom plate 1 and the tooling upper plate 4, and the positioning is accurate, making the structure firm and stable.

[0025] The first limit block assembly 8 and the second limit block assembly 9 are provided with a detachable rubber buffer block 27 near the power meter housing 40 to reduce the possibility of damage to the power meter when it is placed and ensure the beauty of both sides of the power meter.

[0026] The front limiting block 10 is provided with a limiting vertical surface 29 for limiting the front end of the meter display screen 41 and a limiting inclined guide surface 30 for facilitating the placement of the meter display screen 41, so as to facilitate the placement of the power meter.

[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 power meter calibration tool, characterized by: A tooling base plate (1), a first positioning plate (2) vertically arranged on the tooling base plate (1), a second positioning plate (3) arranged parallel to and spaced from the first positioning plate (2), a tooling upper plate (4) covering the first positioning plate (2) and the second positioning plate (3), and a plug-in column assembly (6) arranged horizontally and spaced from each other and penetrating the first positioning plate (2) and the second positioning plate (3); the tooling base plate (1) is provided with a first limit block assembly (8) and a second limit block assembly (9) at the front end of the first positioning plate (2) for limiting the left and right sides of a power meter housing (40), respectively, and a front limit block (10) for limiting the meter display screen (41); The plug-in column assembly (6) comprises a plug-in column (12) in contact with the instrument wiring port (42), a return spring (13) sleeved on the plug-in column (12) and disposed between the first positioning plate (2) and the second positioning plate (3), and a fixing nut (14) for fixing the rear end of the plug-in column (12), and calibration docking holes (7) electrically connected to the plug-in column (12) and used for calibrating the device plug-in are provided on the tooling upper plate (4) at intervals.

2. The electric power meter calibration tool according to claim 1 is characterized in that: The plug-in column (12) comprises a plug-in column body (16), a plug-in column positioning boss (17) is provided in the middle of the plug-in column body (16), second insertion holes (19) for the plug-in column (12) to be inserted are provided at intervals on the second positioning plate (3), and a spring positioning groove (20) is provided at the second insertion hole (19) of the second positioning plate (3). The return spring (13) is sleeved on the plug-in column body (16) with one end abutting against the plug-in column positioning boss (17), and the other end is placed in the spring positioning groove (20).

3. The electric power meter calibration tool according to claim 2 is characterized in that: The front end of the plug-in column body (16) is provided with a tapered plug connector (18) that facilitates contact with the instrument wiring port (42).

4. The electric power meter calibration tool according to claim 2 is characterized in that: The plug post (12) further comprises a plug post connection portion (22) arranged at the rear end of the plug post body (16), the plug post connection portion (22) being provided with a plug post connection groove (23) for facilitating cable winding, and the diameter of the plug post connection portion (22) being smaller than the diameter of the plug post body (16).

5. The electric power meter calibration tool according to claim 1 is characterized in that: The second positioning plate (3) is provided with positioning plate positioning protrusions (25) at the upper and lower ends thereof for docking and positioning with the tooling bottom plate (1) and the tooling upper plate (4).

6. The electric power meter calibration tool according to claim 1, characterized in that: The first limit block assembly (8) and the second limit block assembly (9) are provided with a detachable rubber buffer block (27) on one side close to the power meter housing (40).

7. The electric power meter calibration tool according to claim 1, characterized in that: The front limit block (10) is provided with a limit vertical surface (29) for limiting the front end of the instrument display screen (41) and a limit inclined guide surface (30) for facilitating the placement of the instrument display screen (41).

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