An electric energy meter testing tool

Abstract

The invention discloses an electric energy meter testing tool, comprising a base and a clamping mechanism that can move relative to the base; the base is provided with an accommodating groove for accommodating the clamping mechanism; the clamping mechanism comprises a sliding seat, an auxiliary copper sheet, a floating crimping copper sheet and a reset spring, one end of the reset spring is fixedly arranged relative to the sliding seat, and the other end of the reset spring is connected to the floating crimping copper sheet, the auxiliary copper sheet and the floating crimping copper sheet are floatingly connected to form an accommodating space for accommodating the electric energy meter terminal; the sliding seat is actuated, the sliding seat moves to compress the reset spring so that the accommodating space is reduced to clamp the electric energy meter terminal, the tool can be compatible with electric energy meters of various specifications, and can adapt to the deformation errors of the electric energy meter input and output terminals.

Description

Technical Field

[0001] The invention relates to the technical field of electric energy meter testing, and in particular to an electric energy meter testing tool. Background Art

[0002] An electric energy meter refers to a tool for recording the electricity used. During the normal use of electric equipment, in order to improve the detection and use of electric equipment, people usually install electric energy meters on the electric equipment to detect and record the electricity used by the electric equipment. In traditional testing, manual wiring is generally performed, and the tester manually connects the terminals of the electric energy meter to the test equipment. However, manual operation is cumbersome, which seriously reduces work efficiency and increases the workload of the staff. In addition, the accuracy of the wiring needs to be determined during wiring to avoid wrong or missed connections. In the prior art, there is a three-phase smart electric energy meter insulation performance test tool, which includes a base, two mutually parallel limit plates and a pressing mechanism, which can quickly and accurately insert the probe into the port of the three-phase smart meter during testing. However, this solution can only fix the three-phase meter and cannot adapt to electric energy meter terminals of different sizes. In addition, the clamping of the electric energy meter terminal is not firm. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides an electric energy meter testing tool, which is compatible with electric energy meters of various specifications, can adapt to the deformation errors of the electric energy meter input and output terminals, and can firmly clamp the electric energy meter terminals.

[0004] The present invention adopts the following technical solutions:

[0005] A test fixture for an electric energy meter comprises a base and a clamping mechanism that can move relative to the base; the base is provided with an accommodating groove for accommodating the clamping mechanism; the clamping mechanism comprises a slide seat, an auxiliary copper sheet, a floating crimping copper sheet and a reset spring, one end of the reset spring is fixedly arranged relative to the slide seat, and the other end of the reset spring is connected to the floating crimping copper sheet, the auxiliary copper sheet and the floating crimping copper sheet are floatingly connected to form an accommodating space for accommodating the electric energy meter terminals; the slide seat is actuated, the slide seat moves to compress the reset spring so that the accommodating space is reduced to clamp the electric energy meter terminals; the size of the accommodating space can be adjusted, so that the clamping mechanism can be compatible with electric energy meters of various specifications, adapt to the deformation errors of the electric energy meter input and output terminals, and firmly clamp the electric energy meter terminals.

[0006] Preferably, the auxiliary copper sheet comprises a connecting portion connected to the floating crimping copper sheet, a bending portion at one end of the connecting portion and a pressing portion at one end of the bending portion, and an accommodating space for accommodating the electric energy meter terminal is formed between the pressing portion and the floating crimping copper sheet.

[0007] Preferably, the clamping mechanism includes two groups of single clamping mechanisms and two groups of double clamping mechanisms, which can clamp the six connection terminals of the electric energy meter at the same time.

[0008] Preferably, the single clamping mechanism includes a single clamping slide, an auxiliary copper sheet, a floating crimping copper sheet, a first return spring and a first spring fixing seat, wherein the first spring fixing seat is connected to the two connecting ends of the single clamping slide, and one end of the first return spring is connected to the first spring fixing seat; when the single clamping slide is actuated, the first return spring is compressed toward the inside of the single clamping slide, so that the accommodating space is reduced to clamp the terminals of the electric energy meter.

[0009] Preferably, the double clamping mechanism includes a double clamping slide, two auxiliary copper sheets, two floating crimping copper sheets, a first return spring, a second return spring, a first spring fixing seat and a second spring fixing seat, the second spring fixing seat is connected to the two connecting ends of the double clamping slide, and the first spring fixing seat is connected to the inner side of the double clamping slide; one end of the first return spring is connected to the first spring fixing seat, and the other end of the first return spring is connected to the floating crimping copper sheet, and an auxiliary copper sheet is provided on the floating crimping copper sheet; one end of the second return spring is connected to the second spring fixing seat, and the other end of the second return spring is connected to the floating crimping copper sheet, and an auxiliary copper sheet is provided on the floating crimping copper sheet.

[0010] Preferably, the double clamping slide is actuated, and the first return spring and the second return spring are compressed toward the outside of the double clamping slide to reduce the accommodating space so as to clamp the electric energy meter terminal, so that the thrust direction applied by the overall tooling to the upper end of the electric energy meter terminal is consistent, thereby reducing the possibility of deformation of the electric energy transformer terminal.

[0011] Preferably, a floating guide pin is provided between the floating crimping copper sheet and the first spring fixing seat and / or the second spring fixing seat, and the reset spring is sleeved outside the floating guide pin to limit the movement of the reset spring.

[0012] Preferably, a removable upper cover is provided on the base, and a limiting groove is provided at a position of the upper cover corresponding to the accommodating groove, and one side of the auxiliary copper sheet is attached to the wall of the limiting groove or the auxiliary copper sheet is attached to the wall of the limiting groove during movement.

[0013] Preferably, a travel limiter is provided on the wall surface of the accommodating groove to prevent the slide from moving excessively.

[0014] Preferably, driving mechanisms are provided on both sides of the base, and the driving mechanisms include a first driving mechanism and a second driving mechanism for driving a plurality of slides to move in the same direction.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. The present invention provides an electric energy meter testing tool, including a base and a clamping mechanism that can move relative to the base, a floating connection between an auxiliary copper sheet and a floating crimping copper sheet, and the size of the accommodating space can be adjusted, so that the clamping mechanism can be compatible with electric energy meters of various specifications, adapt to the deformation errors of the electric energy meter input and output terminals, and firmly clamp the electric energy meter terminals.

[0017] 2. The clamping mechanism includes two sets of single clamping mechanisms and two sets of double clamping mechanisms, which can clamp the six terminals of the electric energy meter at the same time, and the structure is simple and reliable.

[0018] 3. The auxiliary copper sheet and the floating crimping copper sheet are floatingly connected. The reset spring is pressed tightly on the floating crimping copper sheet during operation, so that the auxiliary copper sheet and the floating crimping copper sheet are both attached to the surface of the electric energy meter terminal, which greatly increases the effective contact area and reduces the crimping conductive resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the usage status of the electric energy meter testing tooling.

[0020] Figure 2 This is a cross-sectional view of the electric energy meter test fixture in use.

[0021] Figure 3 for Figure 2 A partial enlarged view of part A.

[0022] Figure 4 This is a schematic diagram of the structure of the electric energy meter test tooling.

[0023] Figure 5 This is a partial structural diagram of the electric energy meter testing tooling.

[0024] Figure 6 It is a structural schematic diagram of the base and the clamping mechanism.

[0025] Figure 7 It is a structural schematic diagram of the clamping mechanism.

[0026] Figure 8 It is a structural schematic diagram of a single clamping mechanism.

[0027] Fig. 9 This is a schematic structural diagram of a single clamping mechanism from another perspective.

[0028] Fig.10 It is a structural schematic diagram of the double clamping mechanism.

[0029] Fig.11 This is a schematic structural diagram of the double clamping mechanism from another perspective.

[0030] Fig.12 It is a schematic diagram of the structure of the upper cover.

[0031] In the figure, base 1, accommodating groove 1-1, travel limit part 1-2, upper cover 2, limit groove 2-1, slide 3, single clamping slide 3-1, double clamping slide 3-2, auxiliary copper sheet 4, connecting part 4-1, bending part 4-2, pressing part 4-3, floating crimping copper sheet 5, return spring 6, first return spring 6-1, second return spring 6-2, spring fixing seat 7, first spring fixing seat 7-1, second spring fixing seat 7-2, floating guide pin 8, driving mechanism 9, first driving mechanism 9-1, second driving mechanism 9-2. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the technical solution of the present invention, a detailed description is given below in conjunction with the accompanying drawings and specific embodiments.

[0033] like Figure 1-Figure 4 As shown, an electric energy meter test tool comprises a base 1, an upper cover 2 and a clamping mechanism that can move relative to the base 1; the base 1 is provided with a receiving groove 1-1 for accommodating the clamping mechanism, and the upper cover 2 has a limiting groove 2-1 at a position corresponding to the receiving groove 1-1;

[0034] like Figure 5-Figure 7 As shown, the clamping mechanism includes two groups of single clamping mechanisms and two groups of double clamping mechanisms.

[0035] like Figure 8-Figure 9 As shown, the single clamping mechanism includes a single clamping slide 3-1, an auxiliary copper sheet 4, a floating crimping copper sheet 5, a first return spring 6-1, a first spring fixing seat 7-1 and a floating guide pin 8. The middle part of the single clamping slide 3-1 is a through structure, and one end has an opening to form two connecting ends. The two ends of the first spring fixing seat 7-1 are connected to the two connecting ends of the single clamping slide 3-1 through a pin shaft, one end of the first return spring 6-1 is connected to the first spring fixing seat 7-1, and the other end of the first return spring 6-1 is connected to the floating crimping copper sheet 5. The auxiliary copper sheet 4 is floatingly connected to the floating crimping copper sheet 5 and the auxiliary copper sheet 4 is connected to the floating guide pin 8. An accommodating space for accommodating the terminals of the electric energy meter is formed between the dynamic crimping copper sheets 5, and the floating guide pin 8 is connected between the first spring fixing seat 7-1 and the floating crimping copper sheet 5 and is located in the first reset spring 6-1; when in use, the single clamping slide 3-1 is actuated, and the first reset spring 6-1 is compressed toward the inside of the single clamping slide 3-1, pushing the auxiliary copper sheet 4 and the floating crimping copper sheet 5 toward the inside of the single clamping slide 3-1, and the auxiliary copper sheet 4 is against the wall of the limiting groove 2-1 and cannot move, and the floating crimping copper sheet 5 continues to move toward the auxiliary copper sheet 4, causing the auxiliary copper sheet 4 to deform, resulting in a reduction in the accommodating space to clamp the terminals of the electric energy meter.

[0036] like Figure 10-11As shown, the double clamping mechanism includes a double clamping slide 3-2, two auxiliary copper sheets 4, two floating crimping copper sheets 5, a first reset spring 6-1, a second reset spring 6-2, a first spring fixing seat 7-1, a second spring fixing seat 7-2 and two floating guide pins 8. The double clamping slide 3-2 is slidably matched in the receiving groove 1-1, and the receiving groove 1-1 has two limit grooves 2-1 above. The double clamping slide 3-2 is provided with two groups of clamping components, which are respectively matched with the two limit grooves 2-1; the middle part of the double clamping slide 3-2 is a through structure, one end has an opening to form two connecting ends, the inner side of the double clamping slide 3-2 has a mounting groove, the second spring fixing seat 7-2 is connected to the two connecting ends of the double clamping slide 3-2, and the first spring fixing seat 7-1 is connected to the mounting groove on the inner side of the double clamping slide 3-2.

[0037] Wherein, a group of clamping components includes an auxiliary copper sheet 4, a floating crimping copper sheet 5, a first return spring 6-1, a first spring fixing seat 7-1 and a floating guide pin 8, one end of the first return spring 6-1 is connected to the first spring fixing seat 7-1, and the other end of the first return spring 6-1 is connected to the floating crimping copper sheet 5, the auxiliary copper sheet 4 is floatingly connected to the floating crimping copper sheet 5 and a receiving space for receiving the electric energy meter terminal is formed between the auxiliary copper sheet 4 and the floating crimping copper sheet 5, and the floating guide pin 8 is connected between the first spring fixing seat 7-1 and the floating crimping copper sheet 5 and is located in the first return spring 6-1;

[0038] Another set of clamping components includes an auxiliary copper sheet 4, a floating crimping copper sheet 5, a second return spring 6-2, a second spring fixing seat 7-2 and a floating guide pin 8; one end of the second return spring 6-2 is connected to the second spring fixing seat 7-2, and the other end of the second return spring 6-2 is connected to the floating crimping copper sheet 5, the floating crimping copper sheet 5 is floatingly connected with the auxiliary copper sheet 4, and the floating guide pin 8 is connected between the second spring fixing seat 7-2 and the floating crimping copper sheet 5 and is located in the second return spring 6-2;

[0039] like Figure 4-Figure 6As shown, when in use, the double clamping slide 3-2 is actuated, the second spring fixing seat 7-2 and the first spring fixing seat 7-1 both move toward the outside of the double clamping slide 3-2, respectively pushing the second return spring 6-2 and the first return spring 6-1 to move and compress at the same time, the first return spring 6-1 is compressed toward the outside of the double clamping slide 3-2, pushing the auxiliary copper sheet 4 and the floating crimping copper sheet 5 toward the outside of the double clamping slide 3-2, the auxiliary copper sheet 4 is pressed against the wall of the corresponding limit groove 2-1 and cannot move, and the floating crimping copper sheet 5 is pressed against the wall of the corresponding limit groove 2-1 and cannot move. The dynamic crimping copper sheet 5 continues to move toward the auxiliary copper sheet 4, causing the auxiliary copper sheet 4 to deform, resulting in a reduction in the accommodating space to clamp the electric energy meter terminal; at the same time, the second reset spring 6-2 is compressed toward the outside of the double clamping slide 3-2, pushing the auxiliary copper sheet 4 and the floating crimping copper sheet 5 toward the outside of the double clamping slide 3-2, and the auxiliary copper sheet 4 is against the corresponding limit groove 2-1 wall and cannot move, and the floating crimping copper sheet 5 continues to move toward the auxiliary copper sheet 4, causing the auxiliary copper sheet 4 to deform, resulting in a reduction in the accommodating space to clamp the electric energy meter terminal.

[0040] Among them, the movements of the single clamping slide 3-1 and the double clamping slide 3-2 are both horizontal movements, so the above-mentioned actuating action can be pushing the single clamping slide 3-1 and the double clamping slide 3-2 to move or pulling the single clamping slide 3-1 and the double clamping slide 3-2 to move.

[0041] In summary, the two sets of single clamping mechanisms and the two sets of double clamping mechanisms can clamp the six terminals of the power transformer when in operation. Since the auxiliary copper sheet 4 and the floating crimping copper sheet 5 are made of copper and have conductivity, the auxiliary copper sheet 4 and the floating crimping copper sheet 5 can be connected to the test equipment. When in use, it is only necessary to insert the power meter into the corresponding position on the power meter test fixture, and then actuate the single clamping slide 3-1 and the double clamping slide 3-2 to clamp the six terminals of the power transformer and perform the test.

[0042] like Figure 1 As shown, the base 1 is provided with drive mechanism installation grooves on both sides, and the drive mechanism installation grooves are provided with drive mechanisms 9, and the drive mechanism 9 includes two first drive mechanisms 9-1 and two second drive mechanisms 9-2. The first drive mechanism 9-1 is connected to the single clamping slide 3-1, and the second drive mechanism 9-2 is connected to the double clamping slide 3-2; Figure 6 Taking the direction shown as an example, the first drive mechanism 9-1 drives the single clamping mechanism to move to the left and the second drive mechanism 9-2 drives the double clamping mechanism to move to the left to clamp the electric energy meter terminal. After the test is completed, the first drive mechanism 9-1 drives the single clamping mechanism to move to the right and the second drive mechanism 9-2 drives the double clamping mechanism to move to the right to release the clamping of the electric energy meter terminal, that is, the first reset spring 6-1 and the second reset spring 6-2 automatically reset to drive the floating crimping copper sheet 5 to move, and the electric energy meter can be removed.

[0043] In addition, when in use, the movement directions of all auxiliary copper sheets 4 and floating crimping copper sheets 5 are consistent, so that the thrust direction applied by the overall tooling to the upper end of the electric energy meter terminal is consistent, reducing the possibility of deformation of the electric energy transformer terminal.

[0044] like Figure 8 As shown, as an embodiment, the auxiliary copper sheet 4 includes a connecting portion 4-1 connected to the floating crimping copper sheet 5, a bending portion 4-2 located at one end of the connecting portion 4-1, and a pressing portion 4-3 located at one end of the bending portion 4-2. The connecting portion 4-1, the bending portion 4-2 and the pressing portion 4-3 form a structure that is approximately stepped or Z-shaped, and a storage space for accommodating the terminals of the electric energy meter is formed between the pressing portion 4-3 and the floating crimping copper sheet 5.

[0045] As a preferred embodiment, a stroke limit portion 1-2 is provided on the wall surface of the accommodating groove 1-1. The stroke limit portion 1-2 is a protruding structure on the wall surface of the accommodating groove 1-1 or the wall surface itself, which can prevent the single clamping slide 3-1 and the double clamping slide 3-2 from moving excessively.

[0046] The above are only preferred embodiments of the present invention. The protection scope of the present invention shall be based on the scope defined by the claims. Several improvements and modifications made by those skilled in the art without departing from the spirit and scope of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An electric energy meter testing tool, characterized in that: The invention comprises a base (1) and a clamping mechanism that can move relative to the base (1); the base (1) is provided with a receiving groove (1-1) for receiving the clamping mechanism; the clamping mechanism comprises a slide seat (3), an auxiliary copper sheet (4), a floating crimping copper sheet (5) and a return spring (6); one end of the return spring (6) is fixedly arranged on a spring fixing seat (7) relative to the slide seat (3); the other end of the return spring (6) is connected to the floating crimping copper sheet (5); the auxiliary copper sheet (4) and the floating crimping copper sheet (5) are floatingly connected to form a receiving space for receiving the terminals of the electric energy meter; the slide seat (3) is actuated, The slide seat (3) moves to compress the reset spring (6) so that the accommodation space is reduced to clamp the electric energy meter terminal; the auxiliary copper sheet (4) comprises a connecting portion (4-1) connected to the floating crimping copper sheet (5), a bending portion (4-2) located at one end of the connecting portion (4-1), and a pressing portion (4-3) located at one end of the bending portion (4-2), and an accommodation space for accommodating the electric energy meter terminal is formed between the pressing portion (4-3) and the floating crimping copper sheet (5); a floating guide pin (8) is provided between the floating crimping copper sheet (5) and the spring fixing seat (7), and the reset spring (6) is sleeved outside the floating guide pin (8).

2. The electric energy meter testing tool according to claim 1, characterized in that: The clamping mechanism comprises two groups of single clamping mechanisms and two groups of double clamping mechanisms.

3. The electric energy meter testing tool according to claim 2, characterized in that: The single clamping mechanism comprises a single clamping slide (3-1), an auxiliary copper sheet (4), a floating crimping copper sheet (5), a first return spring (6-1) and a first spring fixing seat (7-1); the first spring fixing seat (7-1) is connected to two connecting ends of the single clamping slide (3-1), and one end of the first return spring (6-1) is connected to the first spring fixing seat (7-1); when the single clamping slide (3-1) is actuated, the first return spring (6-1) is compressed toward the inside of the single clamping slide (3-1), so that the accommodating space is reduced to clamp the electric energy meter terminal.

4. The electric energy meter testing tool according to claim 2, characterized in that: The double clamping mechanism comprises a double clamping slide (3-2), two auxiliary copper sheets (4), two floating crimping copper sheets (5), a first return spring (6-1), a second return spring (6-2), a first spring fixing seat (7-1) and a second spring fixing seat (7-2), wherein the second spring fixing seat (7-2) is connected to two connecting ends of the double clamping slide (3-2), and the first spring fixing seat (7-1) is connected to the inner side of the double clamping slide (3-2); one end of the first return spring (6-1) is connected to the first spring fixing seat (7-1), and the other end of the first return spring (6-1) is connected to the floating crimping copper sheet (5), and the floating crimping copper sheet (5) is provided with an auxiliary copper sheet (4); one end of the second return spring (6-2) is connected to the second spring fixing seat (7-2), and the other end of the second return spring (6-2) is connected to the floating crimping copper sheet (5), and the floating crimping copper sheet (5) is provided with an auxiliary copper sheet (4).

5. The electric energy meter testing tool according to claim 4, characterized in that: The double clamping slide seat (3-2) is actuated, and the first return spring (6-1) and the second return spring (6-2) are both compressed toward the outside of the double clamping slide seat (3-2) so that the accommodation space is reduced to clamp the electric energy meter terminal.

6. The electric energy meter testing tool according to claim 1, characterized in that: The base (1) is detachably provided with an upper cover (2), the upper cover (2) having a limiting groove (2-1) at a position corresponding to the accommodating groove (1-1), one side of the auxiliary copper sheet (4) being attached to the wall surface of the limiting groove (2-1) or the auxiliary copper sheet (4) being attached to the wall surface of the limiting groove (2-1) during movement.

7. The electric energy meter testing tool according to claim 1, characterized in that: A travel limit portion (1-2) is provided on the wall surface of the accommodating groove (1-1).

8. The electric energy meter testing tool according to claim 1, characterized in that: Driving mechanisms (9) are provided on both sides of the base (1), and the driving mechanisms (9) comprise a first driving mechanism (9-1) and a second driving mechanism (9-2) for driving a plurality of slide seats (3) to move in the same direction.

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