Electric energy meter verification wiring mechanism and verification device

Abstract

The utility model discloses an electric energy meter verification wiring mechanism and a verification device, the electric energy meter verification wiring mechanism is installed on a test frame, the electric energy meter verification wiring mechanism comprises a first positioning module, the first positioning module comprises a wiring seat and a sliding seat connected to the wiring seat in a sliding manner, and a gap is formed between the sliding seat and the wiring seat to form an adjusting area; the second positioning module is arranged above the first positioning module; the plurality of wiring terminals are connected in the adjusting area in a sliding manner; the pressing assembly comprises a cam shaft and an operation handle used for driving the cam shaft to rotate. Wherein the cam shaft is rotatably connected to the wire holder, and when the cam shaft rotates, the cam shaft can drive the sliding seat to displace relative to the wire holder so as to reduce the transverse distance of the adjusting area. The positions of the wiring terminals relative to the wiring seat are fixed by using the pressing assembly, so that the corresponding number of wiring terminals can be slid to one side according to use requirements, and the unwanted number of terminals can be slid to the other side, thereby improving the application range of wiring.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric energy meter calibration equipment, in particular to an electric energy meter calibration wiring mechanism and a calibration device. BACKGROUND

[0002] As a key device of electric power metering, the accuracy and reliability of the electric energy meter must be strictly detected before leaving the factory, and the electric energy meter calibration device plays a crucial role in this process. At present, there are single-phase electric energy meters and three-phase electric energy meters on the market, and their wiring methods are different, and the corresponding electric energy meter calibration devices also have single-phase electric energy meter calibration devices and three-phase electric energy meter calibration devices.

[0003] The existing electric energy meter calibration device cannot be used for single-phase or three-phase electric energy meter calibration because the number of its wiring terminals is fixed. CONTENT OF THE UTILITY MODEL

[0004] In order to be suitable for electric energy meter wiring of different phases, the first purpose of the present application is to provide an electric energy meter calibration wiring mechanism.

[0005] The electric energy meter calibration wiring mechanism provided by the present application adopts the following technical scheme:

[0006] An electric energy meter calibration wiring mechanism is installed on a test rack, comprising:

[0007] A first positioning module, the first positioning module comprises a wiring seat and a sliding seat slidingly connected to the wiring seat, and the sliding seat and the wiring seat have a spacing to form an adjustment area;

[0008] A second positioning module is arranged above the first positioning module;

[0009] A plurality of wiring terminals are slidingly connected in the adjustment area; and

[0010] A pressing assembly, the pressing assembly comprises a camshaft and an operating handle for driving the camshaft to rotate;

[0011] The camshaft is rotationally connected to the wiring seat, and when the camshaft rotates, the sliding seat can be driven to displace relative to the wiring seat to reduce the lateral distance of the adjustment area.

[0012] Preferably, the wiring seat comprises a base plate and limiting plates connected to both sides of the base plate, the sliding seat is connected between the two limiting plates, and the camshaft is rotationally connected to the limiting plates.

[0013] Preferably, the base plate is provided with a convex rib, the wiring terminal comprises a base and a pin provided on the base, the base is provided with a sliding groove on one end face, and the convex rib is slidingly connected in the sliding groove.

[0014] Preferably, the two end faces of the base are respectively provided with a first limiting block and a second limiting block, the first limiting block abuts against the upper end face of the base plate, and the second limiting block abuts against the upper end face of the sliding seat.

[0015] Preferably, the sliding seat comprises a horizontal plate and a vertical plate connected to the horizontal plate, the two sides of the horizontal plate are provided with protrusions, the limiting plate is provided with a guide groove, and the protrusions are slidingly connected in the guide groove.

[0016] Preferably, the limiting plate is connected to the base plate by a fastener.

[0017] Preferably, the second positioning module comprises:

[0018] a mounting plate,

[0019] a guide seat connected to the mounting plate;

[0020] a swing arm rotatably connected to the mounting plate;

[0021] a guide rod slidingly connected to the guide seat, one end of the guide rod being connected to the swing arm; and

[0022] a pressing plate connected to the guide rod, the pressing plate and the terminal block having a spacing therebetween to form a clamping area for accommodating the electric energy meter to be measured.

[0023] In order to be applicable to electric energy meters of different phases, a second object of the present application is to provide a calibration device.

[0024] The calibration device provided by the present application adopts the following technical scheme:

[0025] A calibration device comprises a test frame and a plurality of electric energy meter calibration wiring mechanisms mounted on the test frame.

[0026] In summary, the present application has at least one of the following beneficial technical effects:

[0027] 1. By arranging the sliding seat to form an adjusting area for a plurality of wiring terminals together with the terminal block, and using the pressing assembly to fix the position of the wiring terminals relative to the terminal block, the corresponding number of wiring terminals can be slid to one side according to the use requirement, and the number of unnecessary terminals can be slid to the other side, thereby improving the application range of wiring.

[0028] 2. By rotating the cam shaft to drive the sliding seat to change the transverse distance of the adjusting area, the wiring terminals can be quickly pressed and positioned, and the structure is simple and convenient to operate.

[0029] 3. The first and second limiting blocks and the sliding slot are arranged on the terminal base, and the convex rib is arranged on the terminal seat, so that the limiting stability between the terminal and the terminal seat and the stability during sliding are improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the detection device;

[0031] Figure 2 It is a structural schematic diagram of the terminal seat and the pressing assembly;

[0032] Figure 3 It is a connection schematic diagram between the terminal seat and the pressing assembly;

[0033] Figure 4 It is a structural schematic diagram of the base plate;

[0034] Figure 5 It is a position schematic diagram between the sliding seat and the pressing assembly;

[0035] Figure 6 It is a connection schematic diagram between the terminal and the terminal seat;

[0036] Figure 7 It is a structural schematic diagram of the second positioning module.

[0037] BRIEF DESCRIPTION OF DRAWINGS: 1. first positioning module; 2. second positioning module; 21. mounting plate; 22. swing arm; 23. guide rod; 24. guide seat; 25. pressing plate; 3. terminal seat; 31. base plate; 311. convex rib; 312. wire port; 32. limiting plate; 33. sliding seat; 331. horizontal plate; 332. vertical plate; 333. convex block; 34. fastener; 35. adjustment area; 4. terminal; 41. base; 411. sliding slot; 412. first limiting block; 413. second limiting block; 42. pin; 5. pressing assembly; 51. cam shaft; 52. operation handle; 6. to-be-detected electric energy meter; 7. test rack. DETAILED DESCRIPTION

[0038] The application will be further described in detail below with reference to the accompanying drawings.

[0039] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being “connected” to another element, it can be directly connected to the other element or there can be an intervening element. The terms “vertical”, “horizontal”, “left”, “right” and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. The use herein of the terms "and / or" includes a set of one or more associated listed items.

[0041] Figure 1 The structure of a testing device is shown, including a test rack 7 and a plurality of electric energy meter testing wiring mechanisms installed on the test rack 7. A plurality of instruments for testing are arranged in the test rack 7, including a standard electric energy meter, a voltage and current power amplifier, etc. The above-mentioned instruments are electrically connected with the electric energy meter testing wiring mechanisms.

[0042] Referring to Figure 2 , the electric energy meter testing wiring mechanism includes a first positioning module 1 and a second positioning module 2 arranged in an up-down manner, and a clamping area is formed between the first positioning module 1 and the second positioning module 2, and the electric energy meter 6 to be tested is installed in the clamping area.

[0043] In combination Figure 3 , the first positioning module 1 includes a wiring seat 3, the wiring seat 3 includes a base plate 31 and limiting plates 32 connected to both sides of the base plate 31, and a region with an open side is formed between the two limiting plates 32 and the base plate 31, a sliding seat 33 is arranged in the region, a spacing is left between a side surface of the sliding seat 33 and the base plate 31 to form an adjusting area 35, and a plurality of wiring terminals 4 are slidably connected in the adjusting area 35. In the embodiment, the base plate 31 and the sliding seat 33 have a certain length, so that the adjusting area 35 formed has a certain longitudinal distance, and the adjusting area 35 has a space staggered with the electric energy meter 6 to be tested after the electric energy meter 6 to be tested is wired.

[0044] In combination Figure 4 and Figure 5 , the base plate 31 is provided with a wiring port 312, which can be used for the instrument lead to pass through and be electrically connected with the wiring terminal 4, and the base plate 31 extends outwardly at an end surface with a protruding rib 311 arranged along the length direction of the base plate 31. The sliding seat 33 includes an integral horizontal plate 331 and a vertical plate 332 connected with the horizontal plate 331, and protruding blocks 333 are arranged at both sides of the horizontal plate 331, and a guide groove with an open side is formed in the corresponding two limiting plates 32, and the protruding blocks 333 are slidably connected in the guide groove to realize the sliding connection between the sliding seat and the wiring seat 3.

[0045] The pressing assembly 5 includes a camshaft 51 and an operating handle 52 connected to one end of the camshaft 51, the camshaft 51 is rotatably connected between the two limiting plates 32 and is arranged at one side of the sliding seat 33 to limit the sliding seat 33 from being separated from the wiring seat 3.

[0046] The cam shaft 51 has a convex surface, which can extrude the sliding seat 33 to displace towards the base plate 31 side and reduce the lateral distance of the adjusting area 35 when driven to rotate by the operating handle 52, and the displacement of the sliding seat 33 can extrude the terminal 4 to limit when the terminal 4 is installed on the terminal seat 3. At the same time, the cam shaft 51 has a certain rotation angle limit, so that the convex surface and the vertical plate 332 are in contact and kept relatively static by the static friction therebetween, and the reverse rotation of the cam shaft 51 can be unlocked.

[0047] In combination Figure 6 The terminal 4 includes a base 41 and a pin 42 connected to the base 41, and the base 41 is provided with a sliding groove 411 on one end surface, and the convex rib 311 is arranged in the sliding groove 411, so that the base 41 can slide relative to the terminal seat 3. The base 41 is further provided with a first limiting block 412 and a second limiting block 413 on the two end surfaces, respectively, and the first limiting block 412 is in contact with the upper end surface of the base 41, and the second limiting block 413 is in contact with the upper end surface of the horizontal plate 331, and the lower end of the base 41 extends towards the lower side of the adjusting area 35, so that the entire base 41 can be limited in the vertical direction within the adjusting area 35. In this embodiment, the two limiting plates 32 are connected with the base plate 31 by fasteners 34, and the terminal 4 is installed after being connected with the base plate 31, and the two limiting plates 32 and the sliding seat 33 limit the terminal 4.

[0048] In combination Figure 7 The second positioning module 2 includes a mounting plate 21, a swing arm 22 rotatably connected to the mounting plate 21, a guide rod 23 connected to the swing arm 22, the guide rod 23 extending towards the terminal seat 3, a guide seat 24 connected to the mounting plate 21, the guide rod 23 slidingly connected to the guide seat 24, and a pressing plate 25 connected to the free end of the guide rod 23, which can drive the guide rod 23 and the guide plate to displace towards the terminal seat 3 when the swing arm 22 rotates relative to the mounting plate 21.

[0049] When the to-be-tested electric energy meter 6 is installed and wired, the corresponding number of terminals 4 is selected according to the wiring number of the to-be-tested electric energy meter 6, so that the terminals 4 to be wired are slid to the same side of the terminal seat 3, and the unnecessary terminals 4 are slid to the other side of the terminal seat 3. Since the base plate 31 has sufficient length, the unused terminals 4 can be misaligned with the to-be-tested electric energy meter 6 without affecting each other. After wiring is completed, the swing arm 22 is rotated to make the pressing plate 25 contact and press the to-be-tested electric energy meter 6, and the wiring operation of the to-be-tested electric energy meter 6 is completed.

[0050] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. An electric energy meter calibration wiring mechanism installed on a test stand (7), characterized in that, The utility model relates to a kind of electric energy meter calibration wiring mechanism, including: First positioning module (1), the first positioning module (1) includes terminal block (3), sliding seat (33) is connected in slip to terminal block (3), and the sliding seat (33) has spacing with terminal block (3) and forms adjustment area (35); Second positioning module (2) is arranged above first positioning module (1); Several terminal (4) are connected in slip in adjustment area (35);And Compression assembly (5), the compression assembly (5) includes camshaft (51) and the operating handle (52) for driving camshaft (51) rotation; Wherein, the camshaft (51) is rotatably connected on terminal block (3), when the camshaft (51) rotates, sliding seat (33) can be driven to displace relative to terminal block (3) to reduce the transverse distance of adjustment area (35).

2. The electric energy meter calibration connection mechanism according to claim 1, characterized in that, The terminal block (3) includes base plate (31) and limiting plate (32) connected to both sides of base plate (31), the sliding seat (33) is connected between the two limiting plates (32), and the camshaft (51) is rotatably connected to the limiting plate (32).

3. The electric energy meter calibration connection mechanism according to claim 2, characterized in that, The base plate (31) is provided with convex rib (311), the terminal (4) includes base (41) and plug pin (42) provided on the base (41), the base (41) is provided with sliding slot (411) on one end face, and the convex rib (311) is connected in slip in the sliding slot (411).

4. The electric energy meter calibration connection mechanism according to claim 3, characterized in that, The two end faces of the base (41) are respectively provided with first limiting block (412) and second limiting block (413), the first limiting block (412) abuts on the upper end face of the base plate (31), and the second limiting block (413) abuts on the upper end face of the sliding seat (33).

5. The electric energy meter calibration connection mechanism according to claim 2, characterized in that, The sliding seat (33) includes horizontal plate (331) and vertical plate (332) connected to the horizontal plate (331), both sides of the horizontal plate (331) are provided with convex block (333), the limiting plate (32) is provided with guide slot, and the convex block (333) is connected in slip in the guide slot.

6. The electric energy meter calibration connection mechanism according to claim 2, characterized in that, The limiting plate (32) is connected with the base plate (31) by fastener (34).

7. The electric energy meter calibration connection mechanism according to claim 1, characterized in that, The second positioning module (2) includes: Mounting plate (21), Guide seat (24) is connected to mounting plate (21); Swing arm (22) is rotatably connected to mounting plate (21); Guide rod (23) is connected in slip to guide seat (24), one end of the guide rod (23) is connected with swing arm (22);And Pressing plate (25), the pressing plate (25) is connected to guide rod (23), and the pressing plate (25) has spacing with terminal block (3) and forms clamping area for accommodating to-be-measured electric energy meter (6).

8. An assay device characterized by, Including test rack (7) and several electric energy meter calibration wiring mechanisms as claimed in any one of claims 1-7 mounted on test rack (7).

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