Grounding alligator clip

Abstract

The utility model discloses a grounding alligator clip, which comprises a test clip and a flexible metal strip, a clip opening of the test clip is formed by two clip pieces, the flexible metal strip is positioned in the clip opening, and one side of the flexible metal strip, which faces the opening of the clip opening, is provided with a tooth-shaped structure; the two ends of the flexible metal strip are connected with the two clamping pieces respectively, at least one clamping piece is provided with two or more fixing positions in the length direction, one end of the flexible metal strip is connected between the different fixing positions in a switching mode, and therefore the contact area of the flexible metal strip and a clamped object is adjusted. According to the grounding alligator clip disclosed by the utility model, the flexible metal strip with the tooth-shaped structure is arranged in the clip opening of the test clip, and the length of the flexible metal strip can be adjusted by connecting different fixing positions, so that the flexible metal strip is more attached to a clamped object, and the effective contact area between the flexible metal strip and the clamped object is increased; and the problem of test data distortion caused by poor contact points is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic grounding testing, in particular to a grounding alligator clip. Background Art

[0002] Alligator clips are usually used to clamp the product to be tested during photovoltaic grounding continuity testing. However, when the product to be tested has an insulating layer on its surface, such as an oxide film insulating layer on the panel frame, a rusty or thickly coated grounding iron, or an unevenly coated photovoltaic bracket surface, the teeth of the alligator clip cannot effectively penetrate the test point due to the incomplete contact surface between the ordinary alligator clip and the product to be tested, resulting in distorted measured data. Utility Model Content

[0003] In order to solve the technical problem that the alligator clip in the prior art photovoltaic grounding continuity detection cannot effectively penetrate the insulating layer on the surface of the product to be tested, resulting in distortion of the test data, the utility model provides a grounding alligator clip to solve the above problem.

[0004] The utility model solves the technical problem by adopting the following technical solution: a grounding alligator clip, comprising a test clip and a flexible metal strip, wherein the test clip is composed of two clips forming a clamping opening, the flexible metal strip is located in the clamping opening, and the side of the flexible metal strip facing the clamping opening has a toothed structure; the two ends of the flexible metal strip are respectively connected to the two clips, at least one of the clips has two or more fixed positions distributed along the length direction, and one end of the flexible metal strip is switched between different fixed positions to adjust the contact area between the flexible metal strip and the clamped object.

[0005] Furthermore, saw teeth are arranged inside the clip.

[0006] Furthermore, the test clip is an alligator clip.

[0007] Furthermore, the flexible metal strip is an elastic steel strip.

[0008] Furthermore, the surface of the flexible metal strip has a plurality of strip-shaped grooves, and tooth-shaped structures are formed between adjacent strip-shaped grooves.

[0009] Furthermore, the grounding alligator clip also includes a connector located at one end of the flexible metal strip, both ends of the flexible metal strip are provided with through holes, one end of the connector is connected to the through hole, and the other end is connected to the fixed position.

[0010] Furthermore, the connecting piece is a metal wire or a nylon wire.

[0011] Furthermore, the fixing position is located on the surface of the clip facing away from the clamping opening, and the fixing position is a convex block protruding from the surface of the clip.

[0012] Furthermore, the tooth-shaped structures are distributed at both ends of the flexible metal strip in the length direction, and the closest distance d between the tooth-shaped structures at the two ends is 1 cm to 3 cm.

[0013] The beneficial effects of the utility model are:

[0014] (1) The grounding alligator clip described in the utility model has a flexible metal strip with a toothed structure disposed in the clamping opening of the test clip, and the length of the flexible metal strip can be adjusted by connecting different fixing positions, so that the flexible metal strip fits the clamped object better, thereby increasing the effective contact area between the two and reducing the problem of test data distortion caused by poor contact points.

[0015] (2) The grounding alligator clip described in the utility model can be fixed on an ordinary alligator clip and connected to a flexible metal strip, which has a simple structure and low modification cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a structural schematic diagram of a specific implementation mode of the grounding alligator clip described in the utility model;

[0018] Figure 2 It is a schematic diagram of the flexible metal strip in the utility model when it is connected to the first gear;

[0019] Figure 3 It is a schematic diagram of the flexible metal strip in the utility model when it is connected to the second gear;

[0020] Figure 4 It is a schematic diagram of the flexible metal strip in the utility model when it is connected to the third gear;

[0021] Figure 5 It is a schematic diagram of the flexible metal strip in the utility model.

[0022] In the figure, 1. test clamp, 101. fixing position, 102. upper clamp, 103. lower clamp, 104. sawtooth, 2. flexible metal strip, 201. bending part, 3. toothed structure, 4. clamped object, 5. strip groove, 6. through hole, 7. connecting piece, 8. first gear, 9. second gear, 10. third gear. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] Embodiment 1

[0025] like Figure 1-Figure 5 As shown, a grounding alligator clip comprises a test clip 1 and a flexible metal strip 2, wherein the test clip 1 consists of two clips forming a clamping opening, the flexible metal strip 2 is located in the clamping opening, and the side of the flexible metal strip 2 facing the clamping opening has a toothed structure 3, the opening of the clamping opening refers to an entrance for a clamped object 4 to extend into the test clip 1, when the test clip 1 clamps the clamped object 4, the toothed structure 3 contacts the clamped object 4, the flexible property of the flexible metal strip 2 enables it to bend and deform as the test clip 1 is opened or closed, and its metal property enables it to have a certain strength, which can destroy the insulating layer on the surface of the clamped object 4.

[0026] The two ends of the flexible metal strip 2 are respectively connected to two clips, at least one of which has two or more fixed positions 101 distributed along the length direction, and one end of the flexible metal strip 2 switches between different fixed positions 101 to adjust the contact area between the flexible metal strip 2 and the clamped object 4.

[0027] like Figure 2 As shown, the two clips are an upper clip 102 and a lower clip 103, one end of the flexible metal strip 2 is connected to the upper clip 102, and the other end is connected to the lower clip 103, the flexible metal strip 2 forms a smaller clamping opening inside the test clip 1, and the bottom of the lower clip 103 is provided with three fixing positions 101, assuming that the three fixing positions 101 are the first gear position 8, the second gear position 9 and the third gear position 10 from left to right, then the method of use is: first install the flexible metal strip 2 in the test clip 1, and the flexible metal strip 2 is connected to the first gear position 8 (such as Figure 2 As shown in the figure, at this time, the length of the flexible metal strip 2 inside the test clip 1 is the longest, and the bending part 201 of the flexible metal strip 2 is closest to the top corner of the test clip 1. Then, the clamped object 4 is placed in the test clip 1. If there is a gap between the flexible metal strip 2 and the clamped object 4, the lower end of the flexible metal strip 2 is pulled to align with the second gear 9 (as shown in the figure). Figure 3 As shown) or the third gear 10 is connected, as Figure 4 As shown, the length of the flexible metal strip 2 inside the test clip 1 is shortened, and the bent portion 201 of the flexible metal strip 2 gradually shifts toward the opening direction until the flexible metal strip 2 fits the clamped object 4, and the rear end of the test clip 1 is grasped to further clamp the clamped object 4, and after clamping, the grounded alligator clip is moved up and down to destroy the insulation layer of the clamped object 4.

[0028] In the present invention, the fixing positions 101 can also be provided on both clips, and one end of the flexible metal strip 2 can be selected for adjustment.

[0029] In this embodiment, the flexible metal strip 2 is an elastic steel strip.

[0030] The tooth structure 3 is formed by: Figure 5 As shown, the surface of the flexible metal strip 2 has a plurality of strip grooves 5 , and tooth-shaped structures 3 are formed between adjacent strip grooves 5 .

[0031] In this embodiment, the fixing position 101 is a convex block protruding from the surface of the clip, and the fixing position 101 is located on the surface of the clip facing away from the clamping opening. The flexible metal strip 2 can bypass the front end of the clip and connect with the fixing position 101, so the fixing position 101 near the left side has a lower gear, and the fixing position 101 near the right side has a higher gear.

[0032] The flexible metal strip 2 and the fixing position 101 can be connected in the following manner: through holes 6 are provided at both ends of the flexible metal strip 2, one end of the connecting member 7 is connected to the through hole 6, and the other end is connected to the fixing position 101. The connecting member 7 can be a metal wire or a nylon wire. The other end of the flexible metal strip 2 can be fixed to the upper clamping piece 102 by welding, or a fixing method that is easy to disassemble can be used.

[0033] Embodiment 2

[0034] Based on the first embodiment, Figure 1 As shown, the clip is provided with saw teeth 104. At this time, the grounding alligator clip can be used for conventional electrical testing when the flexible metal strip 2 is removed. For example, the test clip 1 can be an alligator clip, which is different from the traditional alligator clip in that a fixing position 101 is fixed at the bottom. When the clamped object 4 does not contain an insulating layer, the flexible metal strip 2 can be removed for use. When the clamped object 4 has an insulating layer, the flexible metal strip 2 is installed.

[0035] Embodiment 3

[0036] In order to prevent the tooth-shaped structure 3 from affecting the closing of the test clip 1, based on the above embodiment, the tooth-shaped structure 3 is distributed at both ends of the length direction of the flexible metal strip 2, and the closest distance d between the tooth-shaped structures 3 at both ends is 1 cm to 3 cm. Figure 5 That is, there is a smooth section in the middle of the flexible metal strip 2 to provide space for the bending of the flexible metal strip 2 .

[0037] The utility model solves the pain points of photovoltaic testing institutions under the current situation, does not need to carry additional tools to destroy the insulation layer, and is effective in all outdoor ground continuity testing fields.

[0038] In the description of the present invention, it should be understood that the terms "length", "up", "down", "front", "back", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In this specification, the schematic representation of the terms does not necessarily refer to the same embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in one or more embodiments.

[0040] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A grounding alligator clip, characterized in that: The test clip (1) comprises a test clip and a flexible metal strip (2), wherein the test clip (1) comprises two clips forming a clamping opening, the flexible metal strip (2) is located in the clamping opening, and the side of the flexible metal strip (2) facing the clamping opening has a tooth-shaped structure (3); The two ends of the flexible metal strip (2) are respectively connected to two clamps, at least one of which has two or more fixing positions (101) distributed along the length direction, and one end of the flexible metal strip (2) is switched between different fixing positions (101), thereby adjusting the contact area between the flexible metal strip (2) and the clamped object (4).

2. The grounding alligator clip according to claim 1, characterized in that: Saw teeth (104) are arranged inside the clip.

3. The grounding alligator clip according to claim 2, characterized in that: The test clip (1) is an alligator clip.

4. The grounding alligator clip according to claim 1, characterized in that: The flexible metal strip (2) is an elastic steel strip.

5. The grounding alligator clip according to claim 1, characterized in that: The surface of the flexible metal strip (2) is provided with a plurality of strip-shaped grooves (5), and tooth-shaped structures (3) are formed between adjacent strip-shaped grooves (5).

6. The grounding alligator clip according to claim 1, characterized in that: The grounding alligator clip further comprises a connecting piece (7) located at one end of the flexible metal strip (2), through holes (6) are provided at both ends of the flexible metal strip (2), one end of the connecting piece (7) is connected to the through hole (6), and the other end is connected to the fixing position (101).

7. The grounding alligator clip according to claim 6, characterized in that: The connecting piece (7) is a metal wire or a nylon wire.

8. The grounding alligator clip according to claim 1, characterized in that: The fixing position (101) is located on the surface of the clip facing away from the clip opening, and the fixing position (101) is a convex block protruding from the surface of the clip.

9. The grounding alligator clip according to claim 5, characterized in that: The tooth-shaped structures (3) are distributed at both ends of the flexible metal strip (2) in the length direction, and the closest distance d between the tooth-shaped structures (3) at the two ends is 1 cm to 3 cm.

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