Auxiliary tool for adding quantity to test terminal by tester

Abstract

The utility model relates to the technical field of test wire detection, and particularly discloses an auxiliary tool for a tester to add quantity to a test terminal. Comprising a fixing frame, a plurality of groups of banana plugs which are arranged in parallel and are installed on the fixing frame, and test jacks which are arranged on the fixing frame, are arranged in one-to-one correspondence with the banana plugs and enable each group of test wires to be communicated with the corresponding banana plugs. During maintenance, all the test wires are inserted into the corresponding test jacks, and then the banana plugs are inserted into the test holes of the test terminals, so that all the test wires are connected with the test terminals, and by adopting the structure, the test wires are prevented from being inserted into the test terminals repeatedly when the quantity of the test wires is increased; the working efficiency is greatly improved; all banana plugs are fixed through the fixing frame, so that the stress of the test terminal is more uniform during plugging, and the short circuit condition caused by the damage of the test terminal due to the direct plugging of a test wire is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of test line detection, and more specifically, to an auxiliary tool for adding quantity to test terminals by a tester. Background Art

[0002] In the prior art, when overhauling devices related to secondary circuits, the analog quantities such as sampled current and voltage of the devices are all added by a tester. The analog quantity values are set by the tester and directly inserted into the test terminals through test lines. During the insertion process, only single wires can be inserted in sequence (phase A, phase B, phase C, N, etc.), and after the quantity addition is completed, they are pulled out in sequence and switched to the next group. Moreover, when inserting single wires, the test terminals may be damaged due to uneven force, and there may be a short circuit between test lines due to the instability of the test terminal block, or when working inside the switch cabinet during quantity addition, the test terminals may be accidentally touched, resulting in electric shock to personnel and abnormal sampling of the device.

[0003] In some secondary protection switch cabinets of generators, transformers, etc., since the devices need to collect a large number of analog quantity signals, during the overhaul process, the tester needs to add quantity to each group of analog quantities. Frequent insertion and removal of terminals and replacement of a single test line are rather cumbersome, taking up most of the time and having a certain impact on the entire overhaul period. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an auxiliary tool for adding quantity to test terminals by a tester;

[0005] The solution adopted by the utility model to solve the technical problem is:

[0006] An auxiliary tool for adding quantity to test terminals by a tester, comprising a fixing frame, multiple groups of banana plugs arranged in parallel and mounted on the fixing frame, and test jacks arranged on the fixing frame and corresponding to the banana plugs one by one, and enabling each group of test lines to communicate with the corresponding banana plugs.

[0007] In some possible implementation manners, the fixing frame includes a mounting plate for mounting banana plugs, and side plates symmetrically arranged along the axis of the banana plugs and connected to the mounting plate. The two side plates are inclined and form an eight-shaped structure; the two side plates and the mounting plate are integrally formed.

[0008] In some possible implementation manners, multiple groups of mounting holes for mounting banana plugs are arranged on the mounting plate; the test jacks are arranged on the two side plates and used for inserting test lines; the test jacks on each side plate correspond to the mounting holes one by one and are in communication with each other.

[0009] In some possible implementation manners, a boss is sleeved outside each banana plug, and the boss is located above the mounting plate.

[0010] In some possible embodiments, it further includes a grip installed at one end in the installation cavity formed by two groups of side plates and connected to the side plates.

[0011] In some possible embodiments, the included angle formed by the two groups of side plates is 90°.

[0012] In some possible embodiments, an indicator light and a button connected to the indicator light are further provided on the grip.

[0013] In some possible embodiments, the distance between the axes of adjacent pairs of banana plugs is equal to the distance between the axes of adjacent pairs of test holes in the test terminals.

[0014] In some possible embodiments, the diameter of the plug in the banana plug is consistent with the diameter of the test hole in the test terminal.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] During maintenance, all test wires are inserted into the corresponding test jacks, and then the banana plugs are inserted into the test holes of the test terminals to realize the connection between all test wires and the test terminals. With this structure, it is avoided that the test wires are repeatedly inserted into the test terminals during the addition of quantity; the working efficiency is greatly improved.

[0017] Using the banana plugs in the prior art to realize the connection between the test terminals and the test wires avoids the repeated plugging and unplugging of the test wires; all the banana plugs are fixed by a fixing frame, so that the test terminals are more evenly stressed during plugging and unplugging, thus avoiding the damage of the test terminals caused by the direct plugging and unplugging of the test wires and the occurrence of short circuits. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural view of the present utility model;

[0019] Figure 2 is a bottom view of the present utility model;

[0020] Figure 3 is a front view of the present utility model;

[0021] Figure 4 is a sectional view of the present utility model;

[0022] Figure 5 is a top view of the present utility model;

[0023] Wherein: 1 - banana plug; 11 - boss; 2 - mounting hole; 3 - grip; 4 - test wire; 5 - indicator light; 6 - fixing frame; 61 - mounting plate; 62 - side plate; 7 - test jack, 8 - button. Detailed implementation manners

[0024] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a direct connection, or an indirect connection through an intermediate medium, and may be the communication inside two components or the interaction relationship between two components. The "first", "second" and similar terms mentioned in this application do not indicate any sequence, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "one" do not indicate a quantity limitation, but indicate that there is at least one. In the implementation of this application, "and / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In the description of the embodiments of this application, unless otherwise stated, the meaning of "a plurality" refers to two or more. For example, a plurality of positioning posts means two or more positioning posts. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] The present utility model will be described in detail below.

[0026] As Figures 1 - 5 shown:

[0027] An auxiliary tool for adding quantity to test terminals of a tester, comprising a fixing frame 6, a plurality of groups of banana plugs 1 arranged in parallel and installed on the fixing frame 6, and test jacks 7 arranged on the fixing frame 6 and corresponding to the banana plugs 1 one by one, and enabling each group of test wires 4 to be communicated with the corresponding banana plug 1.

[0028] The banana plugs 1 installed on the fixing frame 6 are inserted and matched with the test holes on the test terminals, and the test jacks 7 are used for inserting the test wires 4, so that the banana plugs 1 connect the test wires 4 with the test terminals;

[0029] The banana plugs 1 are of the prior art and have good elastic potential energy; the internal structure thereof will not be described in detail here;

[0030] When in use, first insert all the test wires 4 into the corresponding test jacks 7 respectively to complete the insertion of all the test wires 4, and then insert all the corresponding banana plugs 1 into the test holes of the test terminals. When installing, applying a force to the fixing frame 6 can complete the connection of all the test wires 4 and the test terminals at one time, and then the quantity can be added; after the quantity addition is completed, applying a force to the fixing frame 6 can disconnect all the test wires 4 from the test terminals; then the above operations can be repeated on another group of test terminals to add quantity;

[0031] During the entire maintenance process, the test line 4 will not be directly inserted into the test terminal; the connection between the test terminal and the test line is achieved through the banana plug 1 for transfer; because the banana plug 1 has good elastic potential energy, it avoids damage to the test terminal due to uneven force during the plugging and unplugging process and the occurrence of short - circuit situations.

[0032] Adopting the present utility model does not require repeated plugging and unplugging of the test line 4, thus greatly improving the maintenance efficiency.

[0033] In some possible implementation manners, the fixing frame 6 includes a mounting plate 61 for mounting the banana plug 1 and side plates 62 that are symmetrically arranged along the axis of the banana plug 1 and connected to the mounting plate 61. The two groups of side plates 62 are inclined and form an eight - shaped structure; the two groups of side plates 62 and the mounting plate 61 are integrally formed; multiple mounting holes 2 for mounting the banana plug 1 are provided on the mounting plate 61; the test jacks 7 are arranged on the two groups of side plates 62 and are used for inserting the test line 4; the test jacks 7 on each group of side plates 62 are arranged in one - to - one correspondence with the mounting holes 2 and are in communication with each other.

[0034] The mounting plate 61 is provided with mounting holes 2. The mounting holes 2 are threaded holes and are screwed with the banana plug 1 to realize the fixation of the banana plug 1.

[0035] The axes of the multiple groups of mounting holes 2 are in the same plane; the multiple groups of mounting holes 2 are arranged at equal intervals; each group of banana plugs 1 is fixed on the mounting plate 61 through the mounting holes 2. The test jacks 7 are located on the side plates 62 and are arranged in one - to - one correspondence with the mounting holes 2 and are coaxially connected; the test jacks 7 are used for the installation of the test line 4, so that the banana plug 1 can be connected to the test line 4.

[0036] The two groups of side plates 62 are symmetrically arranged along the plane where the axes of the multiple groups of mounting holes 2 are located, and the included angle formed with the plane where the mounting plate 61 is located is A, and A < 90°.

[0037] In some possible implementation manners, a boss 11 is sleeved outside each group of the banana plugs 1, and the boss 11 is located above the mounting plate 61.

[0038] The setting of the boss 11 avoids the situation of exposure after the banana plug 1 is inserted into the test terminal; after the banana plug 1 is inserted into the test terminal and inserted in place, the boss 11 closes the opening of the test hole of the test terminal; specifically, the boss 11 has a regular polygon structure, and it is sleeved outside the banana plug 1 by screwing and is fixedly connected to the banana plug 1.

[0039] Furthermore, the boss 11 and the banana plug 1 are coaxially arranged.

[0040] In some possible implementations, the handle 3 is further included, one end of which is installed in the installation cavity formed by the two sets of side panels 62 and connected to the side panels 62 .

[0041] Furthermore, the handle 3 is made of insulating material, such as plastic.

[0042] A mounting portion is provided at one end of the grip 3 close to the side plate 62, the mounting portion is installed in a mounting cavity formed by two sets of side plates 62, and is fixedly connected to the side plates 62 by bolt connection, and a hand-holding portion is provided at one end of the mounting portion away from the banana plug 1;

[0043] When in use, the maintenance personnel can connect the device with the test line 4 inserted into it to the test terminal through the handheld part, which is simple and convenient to operate;

[0044] In some possible implementations, the angle formed by the two groups of side panels 62 is 90°.

[0045] In some possible implementations, an indicator light 5 and a button 8 connected to the indicator light 5 are also provided on the handle 3 .

[0046] After the banana plug 1 is inserted into the test terminal, the amount can be increased. When increasing the amount, the button 8 is pressed to light the indicator light 5 to warn the amount-increasing circuit. After use, the button 8 is pressed again to turn off the warning function, and the auxiliary tool is pulled out from the test terminal by the handle 3 to switch to the next set of test terminals.

[0047] In some possible implementations, in order to enable the banana plug 1 to be smoothly inserted and matched with the test hole on the test terminal, the distance between the axes of two adjacent groups of the banana plugs 1 is equal to the distance between the axes of two adjacent groups of test holes in the test terminal; the diameter of the plug in the banana plug 1 is consistent with the diameter of the test hole of the test terminal.

[0048] Furthermore, the number of banana plugs 1 is set according to the number of test wires 4, generally 4 groups or 6 groups.

[0049] The present invention is not limited to the above-mentioned specific implementation modes, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. An auxiliary tool for a tester to add quantity to a test terminal, characterized in that: The invention comprises a fixing frame, a plurality of banana plugs arranged in parallel and mounted on the fixing frame, and a test jack arranged on the fixing frame and corresponding to the banana plugs one by one so that each test line is connected with the corresponding banana plug.

2. An auxiliary tool for adding quantity to a test terminal by a tester according to claim 1, characterized in that: The fixing frame comprises a mounting plate for mounting a banana plug, and side plates symmetrically arranged along the axis of the banana plug and connected to the mounting plate. The two sets of side plates are inclined and form an eight-shaped structure; the two sets of side plates and the mounting plate are integrally formed.

3. An auxiliary tool for adding quantity to a test terminal by a tester according to claim 2, characterized in that: The mounting plate is provided with a plurality of mounting holes for mounting banana plugs; the test jacks are arranged on two sets of side plates and are used for inserting test wires; the test jacks and mounting holes on each set of side plates are arranged in one-to-one correspondence and are interconnected.

4. The auxiliary tool for adding quantity to the test terminal by a tester according to claim 2, characterized in that: A boss is sleeved on the outer side of each group of banana plugs, and the boss is located above the mounting plate.

5. The auxiliary tool for adding quantity to the test terminal by a tester according to claim 2, characterized in that: It also includes a handle with one end installed in the installation cavity formed by the two groups of side panels and connected to the side panels.

6. An auxiliary tool for adding quantity to a test terminal by a tester according to claim 2, characterized in that: The angle formed by the two groups of side panels is 90°.

7. An auxiliary tool for adding quantity to a test terminal by a tester according to claim 5, characterized in that: An indicator light and a button connected to the indicator light are also provided on the handle.

8. An auxiliary tool for adding quantity to a test terminal by a tester according to any one of claims 1 to 7, characterized in that: The distance between the axes of two adjacent groups of banana plugs is equal to the distance between the axes of two adjacent groups of test holes in the test terminal.

9. An auxiliary tool for adding quantity to a test terminal by a tester according to claim 8, characterized in that: The diameter of the plug in the banana plug is consistent with the diameter of the test hole of the test terminal.

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